<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2025 Workiva-->
<!--r:76f7053f-ea27-4963-86dc-80b9e483a244,g:79a86def-6bac-4add-8002-26979fec30b5-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
  <link:roleRef roleURI="http://greenidgellc.com/role/Cover" xlink:type="simple" xlink:href="gree-20250331.xsd#Cover"/>
  <link:definitionLink xlink:role="http://greenidgellc.com/role/Cover" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationLineItems_4ab67058-ea97-4e03-a688-1eea79f57db3" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationTable_065f9533-8b11-43ea-8858-adc99ad30cfd" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentInformationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_dei_DocumentInformationLineItems_4ab67058-ea97-4e03-a688-1eea79f57db3" xlink:to="loc_dei_DocumentInformationTable_065f9533-8b11-43ea-8858-adc99ad30cfd" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_b5f891d8-7414-40b3-ba74-33acf6dee899" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_dei_DocumentInformationTable_065f9533-8b11-43ea-8858-adc99ad30cfd" xlink:to="loc_us-gaap_StatementClassOfStockAxis_b5f891d8-7414-40b3-ba74-33acf6dee899" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_b5f891d8-7414-40b3-ba74-33acf6dee899_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_b5f891d8-7414-40b3-ba74-33acf6dee899" xlink:to="loc_us-gaap_ClassOfStockDomain_b5f891d8-7414-40b3-ba74-33acf6dee899_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_7cda94df-6772-4cb0-bba3-03044a73a2e2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_b5f891d8-7414-40b3-ba74-33acf6dee899" xlink:to="loc_us-gaap_ClassOfStockDomain_7cda94df-6772-4cb0-bba3-03044a73a2e2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_413afbca-6dac-4a19-aa0a-2101233f2068" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_7cda94df-6772-4cb0-bba3-03044a73a2e2" xlink:to="loc_us-gaap_CommonClassAMember_413afbca-6dac-4a19-aa0a-2101233f2068" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_2265cb28-f748-4224-a1f3-87a4aeb7e39d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_7cda94df-6772-4cb0-bba3-03044a73a2e2" xlink:to="loc_us-gaap_SeniorNotesMember_2265cb28-f748-4224-a1f3-87a4aeb7e39d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassBMember_b495a74c-d216-4761-a194-ec3b2791e5e8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonClassBMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_7cda94df-6772-4cb0-bba3-03044a73a2e2" xlink:to="loc_us-gaap_CommonClassBMember_b495a74c-d216-4761-a194-ec3b2791e5e8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_f6420aeb-7e48-4da6-bc15-a07526c9ce23" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentType"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_4ab67058-ea97-4e03-a688-1eea79f57db3" xlink:to="loc_dei_DocumentType_f6420aeb-7e48-4da6-bc15-a07526c9ce23" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentQuarterlyReport_617fdb36-12e9-4969-9ae4-cb8fbffb633b" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentQuarterlyReport"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_4ab67058-ea97-4e03-a688-1eea79f57db3" xlink:to="loc_dei_DocumentQuarterlyReport_617fdb36-12e9-4969-9ae4-cb8fbffb633b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_1c96ded5-dca4-42e0-8dc3-0126c4dd920a" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentPeriodEndDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_4ab67058-ea97-4e03-a688-1eea79f57db3" xlink:to="loc_dei_DocumentPeriodEndDate_1c96ded5-dca4-42e0-8dc3-0126c4dd920a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentTransitionReport_87e65291-9573-4a45-9f7c-4fced1130241" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentTransitionReport"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_4ab67058-ea97-4e03-a688-1eea79f57db3" xlink:to="loc_dei_DocumentTransitionReport_87e65291-9573-4a45-9f7c-4fced1130241" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_c1ec6d5b-30ff-42a6-9771-2522b5c5b082" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityFileNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_4ab67058-ea97-4e03-a688-1eea79f57db3" xlink:to="loc_dei_EntityFileNumber_c1ec6d5b-30ff-42a6-9771-2522b5c5b082" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_11e15ff7-f1d1-46a0-b1cc-3d0efea46907" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityRegistrantName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_4ab67058-ea97-4e03-a688-1eea79f57db3" xlink:to="loc_dei_EntityRegistrantName_11e15ff7-f1d1-46a0-b1cc-3d0efea46907" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_cc8a6a2b-6453-4001-87dc-5493e66059fb" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_4ab67058-ea97-4e03-a688-1eea79f57db3" xlink:to="loc_dei_EntityIncorporationStateCountryCode_cc8a6a2b-6453-4001-87dc-5493e66059fb" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_f73375fe-3ad4-46c7-ae54-1f3505788962" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_4ab67058-ea97-4e03-a688-1eea79f57db3" xlink:to="loc_dei_EntityTaxIdentificationNumber_f73375fe-3ad4-46c7-ae54-1f3505788962" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_c36415ba-44a3-49fc-8a0d-5331b5caea42" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressAddressLine1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_4ab67058-ea97-4e03-a688-1eea79f57db3" xlink:to="loc_dei_EntityAddressAddressLine1_c36415ba-44a3-49fc-8a0d-5331b5caea42" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine2_635222dc-77ac-4038-b594-20141aa86487" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressAddressLine2"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_4ab67058-ea97-4e03-a688-1eea79f57db3" xlink:to="loc_dei_EntityAddressAddressLine2_635222dc-77ac-4038-b594-20141aa86487" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_a2101c13-7977-4576-8674-020437e102ec" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressCityOrTown"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_4ab67058-ea97-4e03-a688-1eea79f57db3" xlink:to="loc_dei_EntityAddressCityOrTown_a2101c13-7977-4576-8674-020437e102ec" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_a5cc53f1-340d-4ce0-804d-b4b33b7c15dc" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressStateOrProvince"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_4ab67058-ea97-4e03-a688-1eea79f57db3" xlink:to="loc_dei_EntityAddressStateOrProvince_a5cc53f1-340d-4ce0-804d-b4b33b7c15dc" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_d8fad71e-7453-4a9d-8cfb-5c37796ad15b" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressPostalZipCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_4ab67058-ea97-4e03-a688-1eea79f57db3" xlink:to="loc_dei_EntityAddressPostalZipCode_d8fad71e-7453-4a9d-8cfb-5c37796ad15b" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_f33a930c-0552-43fc-8242-ff82edfab34b" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_CityAreaCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_4ab67058-ea97-4e03-a688-1eea79f57db3" xlink:to="loc_dei_CityAreaCode_f33a930c-0552-43fc-8242-ff82edfab34b" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_03bf1dbf-a6a6-4eb6-8f94-e9a91e446141" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_LocalPhoneNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_4ab67058-ea97-4e03-a688-1eea79f57db3" xlink:to="loc_dei_LocalPhoneNumber_03bf1dbf-a6a6-4eb6-8f94-e9a91e446141" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_ef084a0d-9d00-4270-9e5c-36d3182fcc7c" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_Security12bTitle"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_4ab67058-ea97-4e03-a688-1eea79f57db3" xlink:to="loc_dei_Security12bTitle_ef084a0d-9d00-4270-9e5c-36d3182fcc7c" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_71d47f4d-7e42-4fed-a94d-546cf7375915" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_TradingSymbol"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_4ab67058-ea97-4e03-a688-1eea79f57db3" xlink:to="loc_dei_TradingSymbol_71d47f4d-7e42-4fed-a94d-546cf7375915" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_af174248-14d5-4dd2-8cb5-9f8254e0a54f" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_SecurityExchangeName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_4ab67058-ea97-4e03-a688-1eea79f57db3" xlink:to="loc_dei_SecurityExchangeName_af174248-14d5-4dd2-8cb5-9f8254e0a54f" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCurrentReportingStatus_e7d8dee4-f849-43c9-a560-29f05c218d84" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityCurrentReportingStatus"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_4ab67058-ea97-4e03-a688-1eea79f57db3" xlink:to="loc_dei_EntityCurrentReportingStatus_e7d8dee4-f849-43c9-a560-29f05c218d84" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityInteractiveDataCurrent_88aed770-cadd-4e8e-9ae2-87c2aab46508" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityInteractiveDataCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_4ab67058-ea97-4e03-a688-1eea79f57db3" xlink:to="loc_dei_EntityInteractiveDataCurrent_88aed770-cadd-4e8e-9ae2-87c2aab46508" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFilerCategory_334fece7-3c65-4ce5-a63b-71ec27831d2d" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityFilerCategory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_4ab67058-ea97-4e03-a688-1eea79f57db3" xlink:to="loc_dei_EntityFilerCategory_334fece7-3c65-4ce5-a63b-71ec27831d2d" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntitySmallBusiness_4563b3ab-579f-47dd-ac11-fa2165acb29b" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntitySmallBusiness"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_4ab67058-ea97-4e03-a688-1eea79f57db3" xlink:to="loc_dei_EntitySmallBusiness_4563b3ab-579f-47dd-ac11-fa2165acb29b" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_be575dc3-c388-43ce-8a01-342aaacf9942" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_4ab67058-ea97-4e03-a688-1eea79f57db3" xlink:to="loc_dei_EntityEmergingGrowthCompany_be575dc3-c388-43ce-8a01-342aaacf9942" xlink:type="arc" order="22"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityExTransitionPeriod_c75f5720-1bf7-4027-b49e-1742860724ff" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityExTransitionPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_4ab67058-ea97-4e03-a688-1eea79f57db3" xlink:to="loc_dei_EntityExTransitionPeriod_c75f5720-1bf7-4027-b49e-1742860724ff" xlink:type="arc" order="23"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityShellCompany_80a16edc-fa9e-4ae3-868d-6fe14eeb68be" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityShellCompany"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_4ab67058-ea97-4e03-a688-1eea79f57db3" xlink:to="loc_dei_EntityShellCompany_80a16edc-fa9e-4ae3-868d-6fe14eeb68be" xlink:type="arc" order="24"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCommonStockSharesOutstanding_20d9e1b6-8bac-4005-b8a1-71ca66577c93" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityCommonStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_4ab67058-ea97-4e03-a688-1eea79f57db3" xlink:to="loc_dei_EntityCommonStockSharesOutstanding_20d9e1b6-8bac-4005-b8a1-71ca66577c93" xlink:type="arc" order="25"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CurrentFiscalYearEndDate_ad065b14-811b-41d8-9488-3b6457c2855e" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_CurrentFiscalYearEndDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_4ab67058-ea97-4e03-a688-1eea79f57db3" xlink:to="loc_dei_CurrentFiscalYearEndDate_ad065b14-811b-41d8-9488-3b6457c2855e" xlink:type="arc" order="26"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_6d453014-82c6-446c-8af1-6a245a9f2202" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityCentralIndexKey"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_4ab67058-ea97-4e03-a688-1eea79f57db3" xlink:to="loc_dei_EntityCentralIndexKey_6d453014-82c6-446c-8af1-6a245a9f2202" xlink:type="arc" order="27"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_5c092d3e-fdb5-49c2-9b66-c661b07ec1f1" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_AmendmentFlag"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_4ab67058-ea97-4e03-a688-1eea79f57db3" xlink:to="loc_dei_AmendmentFlag_5c092d3e-fdb5-49c2-9b66-c661b07ec1f1" xlink:type="arc" order="28"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalYearFocus_10c2e54c-1180-467a-a8b1-48c612419733" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentFiscalYearFocus"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_4ab67058-ea97-4e03-a688-1eea79f57db3" xlink:to="loc_dei_DocumentFiscalYearFocus_10c2e54c-1180-467a-a8b1-48c612419733" xlink:type="arc" order="29"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalPeriodFocus_070e31ba-696c-4290-a513-e73bee5725f4" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentFiscalPeriodFocus"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_4ab67058-ea97-4e03-a688-1eea79f57db3" xlink:to="loc_dei_DocumentFiscalPeriodFocus_070e31ba-696c-4290-a513-e73bee5725f4" xlink:type="arc" order="30"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://greenidgellc.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSUNAUDITED" xlink:type="simple" xlink:href="gree-20250331.xsd#CONDENSEDCONSOLIDATEDBALANCESHEETSUNAUDITED"/>
  <link:definitionLink xlink:role="http://greenidgellc.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSUNAUDITED" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_bc000d99-3600-488c-baa3-155c520ad574" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_457d67c0-e45c-4b2a-913e-8516f9158730" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_bc000d99-3600-488c-baa3-155c520ad574" xlink:to="loc_us-gaap_StatementTable_457d67c0-e45c-4b2a-913e-8516f9158730" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_f36dd144-39dd-44d1-b991-eafeedd4693e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_457d67c0-e45c-4b2a-913e-8516f9158730" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_f36dd144-39dd-44d1-b991-eafeedd4693e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_f36dd144-39dd-44d1-b991-eafeedd4693e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_f36dd144-39dd-44d1-b991-eafeedd4693e" xlink:to="loc_us-gaap_RelatedPartyDomain_f36dd144-39dd-44d1-b991-eafeedd4693e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_6abffcd2-055e-4958-8134-480b13b30530" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_f36dd144-39dd-44d1-b991-eafeedd4693e" xlink:to="loc_us-gaap_RelatedPartyDomain_6abffcd2-055e-4958-8134-480b13b30530" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyMember_1b2d2bfb-7c32-45d3-bcb7-029e66d2f9f1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_6abffcd2-055e-4958-8134-480b13b30530" xlink:to="loc_us-gaap_RelatedPartyMember_1b2d2bfb-7c32-45d3-bcb7-029e66d2f9f1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsAbstract_3a43b57e-db87-47dd-8120-b4ec2cd86fe6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_bc000d99-3600-488c-baa3-155c520ad574" xlink:to="loc_us-gaap_AssetsAbstract_3a43b57e-db87-47dd-8120-b4ec2cd86fe6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrentAbstract_156876e3-07b3-4f1c-b8a0-7d23920eb1d2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsCurrentAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_3a43b57e-db87-47dd-8120-b4ec2cd86fe6" xlink:to="loc_us-gaap_AssetsCurrentAbstract_156876e3-07b3-4f1c-b8a0-7d23920eb1d2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsAndShortTermInvestments_1db2aed5-5a2c-46d9-a014-b084c32aa02a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashCashEquivalentsAndShortTermInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_156876e3-07b3-4f1c-b8a0-7d23920eb1d2" xlink:to="loc_us-gaap_CashCashEquivalentsAndShortTermInvestments_1db2aed5-5a2c-46d9-a014-b084c32aa02a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CryptoAssetFairValueCurrent_cb60a981-2b5e-4b7e-839e-f88ddf04bf7e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CryptoAssetFairValueCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_156876e3-07b3-4f1c-b8a0-7d23920eb1d2" xlink:to="loc_us-gaap_CryptoAssetFairValueCurrent_cb60a981-2b5e-4b7e-839e-f88ddf04bf7e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_00798be0-128f-4698-81fa-fe2145418fb9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_156876e3-07b3-4f1c-b8a0-7d23920eb1d2" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_00798be0-128f-4698-81fa-fe2145418fb9" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_39ee7d61-8579-4618-b1b7-9ff159dec15a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_156876e3-07b3-4f1c-b8a0-7d23920eb1d2" xlink:to="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_39ee7d61-8579-4618-b1b7-9ff159dec15a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_EmissionsAndCarbonOffsetCredits_41a5e827-76c6-49fc-9a4d-dc1de73fb41b" xlink:href="gree-20250331.xsd#gree_EmissionsAndCarbonOffsetCredits"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_156876e3-07b3-4f1c-b8a0-7d23920eb1d2" xlink:to="loc_gree_EmissionsAndCarbonOffsetCredits_41a5e827-76c6-49fc-9a4d-dc1de73fb41b" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_92f7332f-6c5d-444b-be72-b5f48099a90c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_156876e3-07b3-4f1c-b8a0-7d23920eb1d2" xlink:to="loc_us-gaap_AssetsCurrent_92f7332f-6c5d-444b-be72-b5f48099a90c" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsNoncurrentAbstract_02ed0a61-ad7a-4551-a1f5-b4d2677246ce" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsNoncurrentAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_3a43b57e-db87-47dd-8120-b4ec2cd86fe6" xlink:to="loc_us-gaap_AssetsNoncurrentAbstract_02ed0a61-ad7a-4551-a1f5-b4d2677246ce" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_975835de-4306-4082-9aa2-d9ca5c683904" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsNoncurrentAbstract_02ed0a61-ad7a-4551-a1f5-b4d2677246ce" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_975835de-4306-4082-9aa2-d9ca5c683904" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_OtherLongTermAssets_7bdf6251-6918-4414-9f9d-7e7eb5f31268" xlink:href="gree-20250331.xsd#gree_OtherLongTermAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsNoncurrentAbstract_02ed0a61-ad7a-4551-a1f5-b4d2677246ce" xlink:to="loc_gree_OtherLongTermAssets_7bdf6251-6918-4414-9f9d-7e7eb5f31268" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent_daaf9704-7d32-4948-a0f3-b6160772e04a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsNoncurrentAbstract_02ed0a61-ad7a-4551-a1f5-b4d2677246ce" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent_daaf9704-7d32-4948-a0f3-b6160772e04a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_251646e0-8df2-4a0f-aa4a-fe455bf8f36d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Assets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_3a43b57e-db87-47dd-8120-b4ec2cd86fe6" xlink:to="loc_us-gaap_Assets_251646e0-8df2-4a0f-aa4a-fe455bf8f36d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_495772da-fcff-457c-b374-baad346719d2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_bc000d99-3600-488c-baa3-155c520ad574" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_495772da-fcff-457c-b374-baad346719d2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrentAbstract_52af04c4-1de8-4ade-a334-b829a0aa8911" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesCurrentAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_495772da-fcff-457c-b374-baad346719d2" xlink:to="loc_us-gaap_LiabilitiesCurrentAbstract_52af04c4-1de8-4ade-a334-b829a0aa8911" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_1a7d93cf-eb22-40b3-9c98-9f63976940f4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsPayableCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_52af04c4-1de8-4ade-a334-b829a0aa8911" xlink:to="loc_us-gaap_AccountsPayableCurrent_1a7d93cf-eb22-40b3-9c98-9f63976940f4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedUtilitiesCurrent_a3fd6249-3563-4cac-a235-8a2609dcfb55" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccruedUtilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_52af04c4-1de8-4ade-a334-b829a0aa8911" xlink:to="loc_us-gaap_AccruedUtilitiesCurrent_a3fd6249-3563-4cac-a235-8a2609dcfb55" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_73f5f4c0-fff0-4673-b05c-e7f0a75db82c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccruedLiabilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_52af04c4-1de8-4ade-a334-b829a0aa8911" xlink:to="loc_us-gaap_AccruedLiabilitiesCurrent_73f5f4c0-fff0-4673-b05c-e7f0a75db82c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_EnvironmentalTrustLiabilityCurrent_30111eff-ec84-4beb-8efd-ecbc2fe17b50" xlink:href="gree-20250331.xsd#gree_EnvironmentalTrustLiabilityCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_52af04c4-1de8-4ade-a334-b829a0aa8911" xlink:to="loc_gree_EnvironmentalTrustLiabilityCurrent_30111eff-ec84-4beb-8efd-ecbc2fe17b50" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_3e72b806-b81d-4fe3-8dc0-07223a332621" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_52af04c4-1de8-4ade-a334-b829a0aa8911" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_3e72b806-b81d-4fe3-8dc0-07223a332621" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_fc9ba104-f1fa-451d-abac-5733ee896337" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherLiabilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_52af04c4-1de8-4ade-a334-b829a0aa8911" xlink:to="loc_us-gaap_OtherLiabilitiesCurrent_fc9ba104-f1fa-451d-abac-5733ee896337" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_29f96e63-c763-401e-a62e-acb1ba59407b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_52af04c4-1de8-4ade-a334-b829a0aa8911" xlink:to="loc_us-gaap_LiabilitiesCurrent_29f96e63-c763-401e-a62e-acb1ba59407b" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesNoncurrentAbstract_82a52755-0da1-40d8-a4dd-27b7f082bd09" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesNoncurrentAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_495772da-fcff-457c-b374-baad346719d2" xlink:to="loc_us-gaap_LiabilitiesNoncurrentAbstract_82a52755-0da1-40d8-a4dd-27b7f082bd09" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermNotesPayable_0d743c86-2c0b-4750-b5b5-a24eccdd2675" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongTermNotesPayable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract_82a52755-0da1-40d8-a4dd-27b7f082bd09" xlink:to="loc_us-gaap_LongTermNotesPayable_0d743c86-2c0b-4750-b5b5-a24eccdd2675" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_EnvironmentalTrustLiability_dd439106-c974-4a19-8f3c-22ce5ef14733" xlink:href="gree-20250331.xsd#gree_EnvironmentalTrustLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract_82a52755-0da1-40d8-a4dd-27b7f082bd09" xlink:to="loc_gree_EnvironmentalTrustLiability_dd439106-c974-4a19-8f3c-22ce5ef14733" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_1265e648-7279-4451-aae4-a3a395762f60" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract_82a52755-0da1-40d8-a4dd-27b7f082bd09" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_1265e648-7279-4451-aae4-a3a395762f60" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_7054f5a1-b14a-4f60-8fac-84e4644ee5dc" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Liabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_495772da-fcff-457c-b374-baad346719d2" xlink:to="loc_us-gaap_Liabilities_7054f5a1-b14a-4f60-8fac-84e4644ee5dc" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_a9b36426-76bc-40a3-902a-5c58e51dfd2c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommitmentsAndContingencies"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_495772da-fcff-457c-b374-baad346719d2" xlink:to="loc_us-gaap_CommitmentsAndContingencies_a9b36426-76bc-40a3-902a-5c58e51dfd2c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityAbstract_288183e9-9519-4aa7-b61f-7fbfd07ec188" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockholdersEquityAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_495772da-fcff-457c-b374-baad346719d2" xlink:to="loc_us-gaap_StockholdersEquityAbstract_288183e9-9519-4aa7-b61f-7fbfd07ec188" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValue_1872e70e-3ba6-45c7-a437-4af51304060b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PreferredStockValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityAbstract_288183e9-9519-4aa7-b61f-7fbfd07ec188" xlink:to="loc_us-gaap_PreferredStockValue_1872e70e-3ba6-45c7-a437-4af51304060b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_1fa8c294-e4e7-406c-8a4c-ec26b65ee950" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityAbstract_288183e9-9519-4aa7-b61f-7fbfd07ec188" xlink:to="loc_us-gaap_CommonStockValue_1fa8c294-e4e7-406c-8a4c-ec26b65ee950" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapital_042d5c82-10bf-41b5-88cc-c21ec448c04f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AdditionalPaidInCapital"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityAbstract_288183e9-9519-4aa7-b61f-7fbfd07ec188" xlink:to="loc_us-gaap_AdditionalPaidInCapital_042d5c82-10bf-41b5-88cc-c21ec448c04f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax_63e120b9-1390-4d64-9f60-bb059e020bbe" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityAbstract_288183e9-9519-4aa7-b61f-7fbfd07ec188" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax_63e120b9-1390-4d64-9f60-bb059e020bbe" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_7954305d-c7cc-4290-a23f-1780fe528a65" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityAbstract_288183e9-9519-4aa7-b61f-7fbfd07ec188" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_7954305d-c7cc-4290-a23f-1780fe528a65" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_b1a45b6c-5ce0-43c1-9e62-0c12244fce20" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockholdersEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityAbstract_288183e9-9519-4aa7-b61f-7fbfd07ec188" xlink:to="loc_us-gaap_StockholdersEquity_b1a45b6c-5ce0-43c1-9e62-0c12244fce20" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_ca2b6d05-d6c5-40a8-a734-a4c6f778eaac" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_495772da-fcff-457c-b374-baad346719d2" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquity_ca2b6d05-d6c5-40a8-a734-a4c6f778eaac" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://greenidgellc.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSUNAUDITED" xlink:type="simple" xlink:href="gree-20250331.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSUNAUDITED"/>
  <link:definitionLink xlink:role="http://greenidgellc.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSUNAUDITED" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_02ae1465-a90b-4489-a3a8-9972b88c460c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_977b6de6-07ed-4106-a106-6efb7f650d9c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_02ae1465-a90b-4489-a3a8-9972b88c460c" xlink:to="loc_us-gaap_StatementTable_977b6de6-07ed-4106-a106-6efb7f650d9c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_f30915b5-54ec-4bbf-bde2-88f7df7a24c1" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_977b6de6-07ed-4106-a106-6efb7f650d9c" xlink:to="loc_srt_ProductOrServiceAxis_f30915b5-54ec-4bbf-bde2-88f7df7a24c1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_f30915b5-54ec-4bbf-bde2-88f7df7a24c1_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_f30915b5-54ec-4bbf-bde2-88f7df7a24c1" xlink:to="loc_srt_ProductsAndServicesDomain_f30915b5-54ec-4bbf-bde2-88f7df7a24c1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_0c9231dd-8f96-4d59-94f9-24fa1d12807d" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_f30915b5-54ec-4bbf-bde2-88f7df7a24c1" xlink:to="loc_srt_ProductsAndServicesDomain_0c9231dd-8f96-4d59-94f9-24fa1d12807d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_DatacenterHostingMember_61166b4b-e24f-44b7-b529-cd6d2486b0d8" xlink:href="gree-20250331.xsd#gree_DatacenterHostingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_0c9231dd-8f96-4d59-94f9-24fa1d12807d" xlink:to="loc_gree_DatacenterHostingMember_61166b4b-e24f-44b7-b529-cd6d2486b0d8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_CryptocurrencyMiningMember_c7bbe514-1e22-433b-b078-f93bd5a7e9c0" xlink:href="gree-20250331.xsd#gree_CryptocurrencyMiningMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_0c9231dd-8f96-4d59-94f9-24fa1d12807d" xlink:to="loc_gree_CryptocurrencyMiningMember_c7bbe514-1e22-433b-b078-f93bd5a7e9c0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_PowerAndCapacityMember_1265f4d6-ff47-465d-b19d-f125c4211078" xlink:href="gree-20250331.xsd#gree_PowerAndCapacityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_0c9231dd-8f96-4d59-94f9-24fa1d12807d" xlink:to="loc_gree_PowerAndCapacityMember_1265f4d6-ff47-465d-b19d-f125c4211078" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_EngineeringProcurementConstructionManagementConsultingMember_65b4ffb8-c496-42c5-acc0-02a0f8c6873b" xlink:href="gree-20250331.xsd#gree_EngineeringProcurementConstructionManagementConsultingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_0c9231dd-8f96-4d59-94f9-24fa1d12807d" xlink:to="loc_gree_EngineeringProcurementConstructionManagementConsultingMember_65b4ffb8-c496-42c5-acc0-02a0f8c6873b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenuesAbstract_c0a19c4c-1c4c-48a8-8372-1bcd02fa5078" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RevenuesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_02ae1465-a90b-4489-a3a8-9972b88c460c" xlink:to="loc_us-gaap_RevenuesAbstract_c0a19c4c-1c4c-48a8-8372-1bcd02fa5078" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_c7fb365a-0a65-44f4-878f-dfe6fff8c84e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract_c0a19c4c-1c4c-48a8-8372-1bcd02fa5078" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_c7fb365a-0a65-44f4-878f-dfe6fff8c84e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingCostsAndExpensesAbstract_a5afdf49-cdd6-480f-86ad-9fe7bf6cd710" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingCostsAndExpensesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_02ae1465-a90b-4489-a3a8-9972b88c460c" xlink:to="loc_us-gaap_OperatingCostsAndExpensesAbstract_a5afdf49-cdd6-480f-86ad-9fe7bf6cd710" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization_e4023c58-4b29-4d56-a315-727e9e3e8c37" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingCostsAndExpensesAbstract_a5afdf49-cdd6-480f-86ad-9fe7bf6cd710" xlink:to="loc_us-gaap_CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization_e4023c58-4b29-4d56-a315-727e9e3e8c37" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_0e6511dd-6760-4469-90d5-7f5d64c7273e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SellingGeneralAndAdministrativeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingCostsAndExpensesAbstract_a5afdf49-cdd6-480f-86ad-9fe7bf6cd710" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_0e6511dd-6760-4469-90d5-7f5d64c7273e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationNonproduction_4aa7c834-b1e1-4eb7-bd50-f4b7ee992da7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DepreciationNonproduction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingCostsAndExpensesAbstract_a5afdf49-cdd6-480f-86ad-9fe7bf6cd710" xlink:to="loc_us-gaap_DepreciationNonproduction_4aa7c834-b1e1-4eb7-bd50-f4b7ee992da7" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf_675d4631-d5e0-43a0-a0f2-e59c505afad8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingCostsAndExpensesAbstract_a5afdf49-cdd6-480f-86ad-9fe7bf6cd710" xlink:to="loc_us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf_675d4631-d5e0-43a0-a0f2-e59c505afad8" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CryptoAssetRealizedAndUnrealizedGainLossOperating_e9111926-712e-479a-b7ec-309d4d766b61" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CryptoAssetRealizedAndUnrealizedGainLossOperating"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingCostsAndExpensesAbstract_a5afdf49-cdd6-480f-86ad-9fe7bf6cd710" xlink:to="loc_us-gaap_CryptoAssetRealizedAndUnrealizedGainLossOperating_e9111926-712e-479a-b7ec-309d4d766b61" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnDispositionOfAssets1_9b0afd8d-b599-47e1-834b-791cf18be2d0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_GainLossOnDispositionOfAssets1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingCostsAndExpensesAbstract_a5afdf49-cdd6-480f-86ad-9fe7bf6cd710" xlink:to="loc_us-gaap_GainLossOnDispositionOfAssets1_9b0afd8d-b599-47e1-834b-791cf18be2d0" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InsuredEventGainLoss_d0c193f5-c7bf-4df9-9419-726225a56f91" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InsuredEventGainLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingCostsAndExpensesAbstract_a5afdf49-cdd6-480f-86ad-9fe7bf6cd710" xlink:to="loc_us-gaap_InsuredEventGainLoss_d0c193f5-c7bf-4df9-9419-726225a56f91" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingCostsAndExpenses_6db177eb-d29e-4681-b110-94741001dc9b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingCostsAndExpenses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingCostsAndExpensesAbstract_a5afdf49-cdd6-480f-86ad-9fe7bf6cd710" xlink:to="loc_us-gaap_OperatingCostsAndExpenses_6db177eb-d29e-4681-b110-94741001dc9b" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_a84f0a03-01c1-4bf1-8ee4-415299251bd1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_02ae1465-a90b-4489-a3a8-9972b88c460c" xlink:to="loc_us-gaap_OperatingIncomeLoss_a84f0a03-01c1-4bf1-8ee4-415299251bd1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpenseAbstract_71d36eb1-7a36-481b-9ba5-4fb62f1947c2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NonoperatingIncomeExpenseAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_02ae1465-a90b-4489-a3a8-9972b88c460c" xlink:to="loc_us-gaap_NonoperatingIncomeExpenseAbstract_71d36eb1-7a36-481b-9ba5-4fb62f1947c2" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_f44e7e6f-5b09-404a-9c0e-1ab89efe8198" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InterestIncomeExpenseNonoperatingNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_71d36eb1-7a36-481b-9ba5-4fb62f1947c2" xlink:to="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_f44e7e6f-5b09-404a-9c0e-1ab89efe8198" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAdjustmentOfWarrants_567ce089-0c39-4700-8aef-c2235e455f7e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueAdjustmentOfWarrants"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_71d36eb1-7a36-481b-9ba5-4fb62f1947c2" xlink:to="loc_us-gaap_FairValueAdjustmentOfWarrants_567ce089-0c39-4700-8aef-c2235e455f7e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeconsolidationGainOrLossAmount_8a395285-8822-4338-a8b4-a08b7c120e45" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeconsolidationGainOrLossAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_71d36eb1-7a36-481b-9ba5-4fb62f1947c2" xlink:to="loc_us-gaap_DeconsolidationGainOrLossAmount_8a395285-8822-4338-a8b4-a08b7c120e45" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonrecurringIncomeExpense_4edea01a-bb42-494e-aeca-2b93c63ddb99" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherNonrecurringIncomeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_71d36eb1-7a36-481b-9ba5-4fb62f1947c2" xlink:to="loc_us-gaap_OtherNonrecurringIncomeExpense_4edea01a-bb42-494e-aeca-2b93c63ddb99" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_3835ea06-0e9a-46d9-b1b9-4cb15be411aa" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_71d36eb1-7a36-481b-9ba5-4fb62f1947c2" xlink:to="loc_us-gaap_NonoperatingIncomeExpense_3835ea06-0e9a-46d9-b1b9-4cb15be411aa" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_8fde5fbe-a9f4-455d-8def-c61a327480e6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_02ae1465-a90b-4489-a3a8-9972b88c460c" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_8fde5fbe-a9f4-455d-8def-c61a327480e6" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_770e6c9c-6272-4762-8fd7-2cabb5ba1906" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_02ae1465-a90b-4489-a3a8-9972b88c460c" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_770e6c9c-6272-4762-8fd7-2cabb5ba1906" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_2b9ba00d-f882-4fc8-ab1b-5c48f7568a19" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_02ae1465-a90b-4489-a3a8-9972b88c460c" xlink:to="loc_us-gaap_NetIncomeLoss_2b9ba00d-f882-4fc8-ab1b-5c48f7568a19" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxAbstract_28ed2e37-4032-434a-94e2-c2c737bcb6a3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ComprehensiveIncomeNetOfTaxAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_02ae1465-a90b-4489-a3a8-9972b88c460c" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTaxAbstract_28ed2e37-4032-434a-94e2-c2c737bcb6a3" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_f3c1bf7a-7d8f-4423-9521-a1a46aa43d78" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_eaee3282-dfd9-47dc-a2fb-e9c1f1f875a9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxAbstract_28ed2e37-4032-434a-94e2-c2c737bcb6a3" xlink:to="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_eaee3282-dfd9-47dc-a2fb-e9c1f1f875a9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax_fd53fe51-f578-40d4-a954-93f3ed03f0a4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxAbstract_28ed2e37-4032-434a-94e2-c2c737bcb6a3" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax_fd53fe51-f578-40d4-a954-93f3ed03f0a4" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_1886a9fe-9e89-4f98-8386-3f4519ea1f33" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxAbstract_28ed2e37-4032-434a-94e2-c2c737bcb6a3" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTax_1886a9fe-9e89-4f98-8386-3f4519ea1f33" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareAbstract_df3cce58-6add-48ea-98e0-a3aaab2f5a1e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EarningsPerShareAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_02ae1465-a90b-4489-a3a8-9972b88c460c" xlink:to="loc_us-gaap_EarningsPerShareAbstract_df3cce58-6add-48ea-98e0-a3aaab2f5a1e" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasic_4a127202-3489-4751-bf21-692ba8cb3ec1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EarningsPerShareBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareAbstract_df3cce58-6add-48ea-98e0-a3aaab2f5a1e" xlink:to="loc_us-gaap_EarningsPerShareBasic_4a127202-3489-4751-bf21-692ba8cb3ec1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDiluted_a7638c1f-f444-43db-82d8-7715a424422b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EarningsPerShareDiluted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareAbstract_df3cce58-6add-48ea-98e0-a3aaab2f5a1e" xlink:to="loc_us-gaap_EarningsPerShareDiluted_a7638c1f-f444-43db-82d8-7715a424422b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_125732bc-10ac-4075-9b96-f13839c8ae47" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareAbstract_df3cce58-6add-48ea-98e0-a3aaab2f5a1e" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_125732bc-10ac-4075-9b96-f13839c8ae47" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_1305a5d2-0105-41fe-9de0-0458c2f8ddfd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareAbstract_df3cce58-6add-48ea-98e0-a3aaab2f5a1e" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_1305a5d2-0105-41fe-9de0-0458c2f8ddfd" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://greenidgellc.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSDEFICITUNAUDITED" xlink:type="simple" xlink:href="gree-20250331.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSDEFICITUNAUDITED"/>
  <link:definitionLink xlink:role="http://greenidgellc.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSDEFICITUNAUDITED" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_ac8b065a-75d2-41f6-a0ae-26c0f2b41a6b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_8ddeab7f-c102-4e4c-ab14-08f364355a1b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_ac8b065a-75d2-41f6-a0ae-26c0f2b41a6b" xlink:to="loc_us-gaap_StatementTable_8ddeab7f-c102-4e4c-ab14-08f364355a1b" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_24a77bce-5e0d-48b6-9745-5ea25cd2b5d7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_8ddeab7f-c102-4e4c-ab14-08f364355a1b" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_24a77bce-5e0d-48b6-9745-5ea25cd2b5d7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_24a77bce-5e0d-48b6-9745-5ea25cd2b5d7_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_24a77bce-5e0d-48b6-9745-5ea25cd2b5d7" xlink:to="loc_us-gaap_EquityComponentDomain_24a77bce-5e0d-48b6-9745-5ea25cd2b5d7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_a196daa9-5233-4748-a610-284d89c897f6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_24a77bce-5e0d-48b6-9745-5ea25cd2b5d7" xlink:to="loc_us-gaap_EquityComponentDomain_a196daa9-5233-4748-a610-284d89c897f6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_ae8bf0eb-f728-40ab-8252-2ce969cd105f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_a196daa9-5233-4748-a610-284d89c897f6" xlink:to="loc_us-gaap_CommonStockMember_ae8bf0eb-f728-40ab-8252-2ce969cd105f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_a75c51b8-5c3d-41e5-a582-db398884ad76" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_a196daa9-5233-4748-a610-284d89c897f6" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_a75c51b8-5c3d-41e5-a582-db398884ad76" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivablesFromStockholderMember_f0bb5391-83f5-400e-aa98-1c5448ebf558" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ReceivablesFromStockholderMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_a196daa9-5233-4748-a610-284d89c897f6" xlink:to="loc_us-gaap_ReceivablesFromStockholderMember_f0bb5391-83f5-400e-aa98-1c5448ebf558" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_e16fcbac-9a79-4b60-b919-3b39453c4dbf" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_a196daa9-5233-4748-a610-284d89c897f6" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_e16fcbac-9a79-4b60-b919-3b39453c4dbf" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_f094608a-9f98-4302-8831-25e5b0eefac8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RetainedEarningsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_a196daa9-5233-4748-a610-284d89c897f6" xlink:to="loc_us-gaap_RetainedEarningsMember_f094608a-9f98-4302-8831-25e5b0eefac8" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiarySaleOfStockAxis_82d75ffb-bc60-4ad7-88d4-b6bd0625e288" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsidiarySaleOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_8ddeab7f-c102-4e4c-ab14-08f364355a1b" xlink:to="loc_us-gaap_SubsidiarySaleOfStockAxis_82d75ffb-bc60-4ad7-88d4-b6bd0625e288" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_82d75ffb-bc60-4ad7-88d4-b6bd0625e288_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_82d75ffb-bc60-4ad7-88d4-b6bd0625e288" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_82d75ffb-bc60-4ad7-88d4-b6bd0625e288_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_084b5fc4-a651-418f-b418-8dd609359733" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_82d75ffb-bc60-4ad7-88d4-b6bd0625e288" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_084b5fc4-a651-418f-b418-8dd609359733" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_SecuritiesPurchaseAgreementMember_b39b0bd4-d87e-4ac3-a6f3-deb2aa6624dc" xlink:href="gree-20250331.xsd#gree_SecuritiesPurchaseAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_084b5fc4-a651-418f-b418-8dd609359733" xlink:to="loc_gree_SecuritiesPurchaseAgreementMember_b39b0bd4-d87e-4ac3-a6f3-deb2aa6624dc" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CumulativeEffectPeriodOfAdoptionAxis_0a8a57b9-ef02-4fc3-868a-9ddb304908b0" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_CumulativeEffectPeriodOfAdoptionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_8ddeab7f-c102-4e4c-ab14-08f364355a1b" xlink:to="loc_srt_CumulativeEffectPeriodOfAdoptionAxis_0a8a57b9-ef02-4fc3-868a-9ddb304908b0" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CumulativeEffectPeriodOfAdoptionDomain_0a8a57b9-ef02-4fc3-868a-9ddb304908b0_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_CumulativeEffectPeriodOfAdoptionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CumulativeEffectPeriodOfAdoptionAxis_0a8a57b9-ef02-4fc3-868a-9ddb304908b0" xlink:to="loc_srt_CumulativeEffectPeriodOfAdoptionDomain_0a8a57b9-ef02-4fc3-868a-9ddb304908b0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CumulativeEffectPeriodOfAdoptionDomain_c3298830-6fbf-4c63-b911-8735ed727535" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_CumulativeEffectPeriodOfAdoptionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CumulativeEffectPeriodOfAdoptionAxis_0a8a57b9-ef02-4fc3-868a-9ddb304908b0" xlink:to="loc_srt_CumulativeEffectPeriodOfAdoptionDomain_c3298830-6fbf-4c63-b911-8735ed727535" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember_cdcfb290-abad-4f90-80a3-d42d3a216a95" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CumulativeEffectPeriodOfAdoptionDomain_c3298830-6fbf-4c63-b911-8735ed727535" xlink:to="loc_srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember_cdcfb290-abad-4f90-80a3-d42d3a216a95" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6554f5bd-b310-4413-acee-cd99d14e456d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_ac8b065a-75d2-41f6-a0ae-26c0f2b41a6b" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6554f5bd-b310-4413-acee-cd99d14e456d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_59ba6dd1-af80-4bc2-b46f-c57a00f6483a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6554f5bd-b310-4413-acee-cd99d14e456d" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_59ba6dd1-af80-4bc2-b46f-c57a00f6483a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_73fe38ca-25d8-4930-9cbf-f3daacaaa0a5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockholdersEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6554f5bd-b310-4413-acee-cd99d14e456d" xlink:to="loc_us-gaap_StockholdersEquity_73fe38ca-25d8-4930-9cbf-f3daacaaa0a5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_afdc1ac9-8160-491e-bc30-96ba2536ae54" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6554f5bd-b310-4413-acee-cd99d14e456d" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_afdc1ac9-8160-491e-bc30-96ba2536ae54" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_b8baeb84-b9be-4d83-ae0b-03ec9bb32fd4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6554f5bd-b310-4413-acee-cd99d14e456d" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_b8baeb84-b9be-4d83-ae0b-03ec9bb32fd4" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_f8820c4a-2277-4fde-8ae6-328cff05d160" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6554f5bd-b310-4413-acee-cd99d14e456d" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_f8820c4a-2277-4fde-8ae6-328cff05d160" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross_689171ef-e6bb-434c-8434-311402a57531" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6554f5bd-b310-4413-acee-cd99d14e456d" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross_689171ef-e6bb-434c-8434-311402a57531" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesPurchasedUnderAgreementsToResellIncrease_b02d7581-8838-4223-a1b0-599cb90071df" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SecuritiesPurchasedUnderAgreementsToResellIncrease"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6554f5bd-b310-4413-acee-cd99d14e456d" xlink:to="loc_us-gaap_SecuritiesPurchasedUnderAgreementsToResellIncrease_b02d7581-8838-4223-a1b0-599cb90071df" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_StockIssuedDuringPeriodSharesDebtExchangeAgreement_3eca4d95-49cb-4dd9-88ef-21db3d550b85" xlink:href="gree-20250331.xsd#gree_StockIssuedDuringPeriodSharesDebtExchangeAgreement"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6554f5bd-b310-4413-acee-cd99d14e456d" xlink:to="loc_gree_StockIssuedDuringPeriodSharesDebtExchangeAgreement_3eca4d95-49cb-4dd9-88ef-21db3d550b85" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_StockIssuedDuringPeriodValueDebtExchangeAgreement_f87aa967-58c4-4e97-a368-2040d2e40e4c" xlink:href="gree-20250331.xsd#gree_StockIssuedDuringPeriodValueDebtExchangeAgreement"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6554f5bd-b310-4413-acee-cd99d14e456d" xlink:to="loc_gree_StockIssuedDuringPeriodValueDebtExchangeAgreement_f87aa967-58c4-4e97-a368-2040d2e40e4c" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax_6aed3494-4975-44c7-b7cf-5f0fdb2fe8c9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6554f5bd-b310-4413-acee-cd99d14e456d" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax_6aed3494-4975-44c7-b7cf-5f0fdb2fe8c9" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_0b0ffd6b-37b6-47c0-9a79-9e1667bd43be" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6554f5bd-b310-4413-acee-cd99d14e456d" xlink:to="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_0b0ffd6b-37b6-47c0-9a79-9e1667bd43be" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_22544c2b-6c5c-4ed3-ad05-4b34f86dec17" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_6554f5bd-b310-4413-acee-cd99d14e456d" xlink:to="loc_us-gaap_NetIncomeLoss_22544c2b-6c5c-4ed3-ad05-4b34f86dec17" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_7141b858-55c5-482e-a839-9b390e64c3fb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_c91a6c0e-be01-4c4a-89a3-fe2cceac5cac" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockholdersEquity"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://greenidgellc.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESDetails" xlink:type="simple" xlink:href="gree-20250331.xsd#SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESDetails"/>
  <link:definitionLink xlink:role="http://greenidgellc.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_c6f6660a-f5a1-4a27-b309-3f39326d0185" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_42d0e3fa-dcf7-4f51-a6a0-d5eb62e11831" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c6f6660a-f5a1-4a27-b309-3f39326d0185" xlink:to="loc_us-gaap_DebtInstrumentTable_42d0e3fa-dcf7-4f51-a6a0-d5eb62e11831" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_80ebbb41-d281-456b-9c4b-f4e223893172" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_42d0e3fa-dcf7-4f51-a6a0-d5eb62e11831" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_80ebbb41-d281-456b-9c4b-f4e223893172" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_80ebbb41-d281-456b-9c4b-f4e223893172_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_80ebbb41-d281-456b-9c4b-f4e223893172" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_80ebbb41-d281-456b-9c4b-f4e223893172_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_43180966-05d1-423f-a691-f0ad13010193" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_80ebbb41-d281-456b-9c4b-f4e223893172" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_43180966-05d1-423f-a691-f0ad13010193" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_f188e328-45e3-4237-ab27-2855fbded098" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_43180966-05d1-423f-a691-f0ad13010193" xlink:to="loc_us-gaap_SubsequentEventMember_f188e328-45e3-4237-ab27-2855fbded098" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiarySaleOfStockAxis_c01e21ee-2d1f-4486-8676-8a771acb5324" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsidiarySaleOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_42d0e3fa-dcf7-4f51-a6a0-d5eb62e11831" xlink:to="loc_us-gaap_SubsidiarySaleOfStockAxis_c01e21ee-2d1f-4486-8676-8a771acb5324" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_c01e21ee-2d1f-4486-8676-8a771acb5324_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_c01e21ee-2d1f-4486-8676-8a771acb5324" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_c01e21ee-2d1f-4486-8676-8a771acb5324_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_77093c5d-559b-421d-890a-c145f917ec22" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_c01e21ee-2d1f-4486-8676-8a771acb5324" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_77093c5d-559b-421d-890a-c145f917ec22" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_DebtExchangeAgreementsMember_dba8667b-8551-4227-8f41-8f73aeda3106" xlink:href="gree-20250331.xsd#gree_DebtExchangeAgreementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_77093c5d-559b-421d-890a-c145f917ec22" xlink:to="loc_gree_DebtExchangeAgreementsMember_dba8667b-8551-4227-8f41-8f73aeda3106" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_CommonStockPurchaseAgreementMember_3c9dde77-b6c8-43d4-bf93-1496111c9266" xlink:href="gree-20250331.xsd#gree_CommonStockPurchaseAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_77093c5d-559b-421d-890a-c145f917ec22" xlink:to="loc_gree_CommonStockPurchaseAgreementMember_3c9dde77-b6c8-43d4-bf93-1496111c9266" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_ExchangeAgreementMember_80ac1ecf-4904-497b-9d53-8ebe6a4c45d9" xlink:href="gree-20250331.xsd#gree_ExchangeAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_77093c5d-559b-421d-890a-c145f917ec22" xlink:to="loc_gree_ExchangeAgreementMember_80ac1ecf-4904-497b-9d53-8ebe6a4c45d9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_8e447094-5622-4915-bdf3-3754c1b64920" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_42d0e3fa-dcf7-4f51-a6a0-d5eb62e11831" xlink:to="loc_us-gaap_DebtInstrumentAxis_8e447094-5622-4915-bdf3-3754c1b64920" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_8e447094-5622-4915-bdf3-3754c1b64920_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_8e447094-5622-4915-bdf3-3754c1b64920" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_8e447094-5622-4915-bdf3-3754c1b64920_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_dc4eb475-a781-4bcb-b2fc-7ca6177b083c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_8e447094-5622-4915-bdf3-3754c1b64920" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_dc4eb475-a781-4bcb-b2fc-7ca6177b083c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_SeniorNotesDueOctober2026Member_cf94bf36-7f71-43e4-968a-0ecc10c3ef89" xlink:href="gree-20250331.xsd#gree_SeniorNotesDueOctober2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_dc4eb475-a781-4bcb-b2fc-7ca6177b083c" xlink:to="loc_gree_SeniorNotesDueOctober2026Member_cf94bf36-7f71-43e4-968a-0ecc10c3ef89" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_108d242d-9113-4334-a373-43381ea260ac" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_42d0e3fa-dcf7-4f51-a6a0-d5eb62e11831" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_108d242d-9113-4334-a373-43381ea260ac" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_108d242d-9113-4334-a373-43381ea260ac_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_108d242d-9113-4334-a373-43381ea260ac" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_108d242d-9113-4334-a373-43381ea260ac_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_639b1885-86f4-4392-9d9d-171e6dff8e6b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_108d242d-9113-4334-a373-43381ea260ac" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_639b1885-86f4-4392-9d9d-171e6dff8e6b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_c0935d94-165a-4e5b-95e9-3ea332887c9a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_639b1885-86f4-4392-9d9d-171e6dff8e6b" xlink:to="loc_us-gaap_SeniorNotesMember_c0935d94-165a-4e5b-95e9-3ea332887c9a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupClassificationAxis_278a9805-3c08-4f0a-8491-c13c320cdba9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DisposalGroupClassificationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_42d0e3fa-dcf7-4f51-a6a0-d5eb62e11831" xlink:to="loc_us-gaap_DisposalGroupClassificationAxis_278a9805-3c08-4f0a-8491-c13c320cdba9" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupClassificationDomain_278a9805-3c08-4f0a-8491-c13c320cdba9_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DisposalGroupClassificationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DisposalGroupClassificationAxis_278a9805-3c08-4f0a-8491-c13c320cdba9" xlink:to="loc_us-gaap_DisposalGroupClassificationDomain_278a9805-3c08-4f0a-8491-c13c320cdba9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupClassificationDomain_599d096f-048e-455c-ae65-e89c3f87e436" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DisposalGroupClassificationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DisposalGroupClassificationAxis_278a9805-3c08-4f0a-8491-c13c320cdba9" xlink:to="loc_us-gaap_DisposalGroupClassificationDomain_599d096f-048e-455c-ae65-e89c3f87e436" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DiscontinuedOperationsDisposedOfBySaleMember_d8516a67-aecf-4e55-a236-ba7e93e97d23" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DiscontinuedOperationsDisposedOfBySaleMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupClassificationDomain_599d096f-048e-455c-ae65-e89c3f87e436" xlink:to="loc_us-gaap_DiscontinuedOperationsDisposedOfBySaleMember_d8516a67-aecf-4e55-a236-ba7e93e97d23" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DiscontinuedOperationsHeldforsaleMember_4d48acb9-b823-4982-b217-81ddd2fa201a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DiscontinuedOperationsHeldforsaleMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupClassificationDomain_599d096f-048e-455c-ae65-e89c3f87e436" xlink:to="loc_us-gaap_DiscontinuedOperationsHeldforsaleMember_4d48acb9-b823-4982-b217-81ddd2fa201a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_00ecd82f-c6d4-46ed-9d46-204b080cced2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_42d0e3fa-dcf7-4f51-a6a0-d5eb62e11831" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_00ecd82f-c6d4-46ed-9d46-204b080cced2" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_00ecd82f-c6d4-46ed-9d46-204b080cced2_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_00ecd82f-c6d4-46ed-9d46-204b080cced2" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_00ecd82f-c6d4-46ed-9d46-204b080cced2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_02ad4d14-a8bd-4673-85b0-80ba39702131" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_00ecd82f-c6d4-46ed-9d46-204b080cced2" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_02ad4d14-a8bd-4673-85b0-80ba39702131" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_SouthCarolinaDatacenterMember_92483132-7c52-4568-a2b2-426738b0f392" xlink:href="gree-20250331.xsd#gree_SouthCarolinaDatacenterMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_02ad4d14-a8bd-4673-85b0-80ba39702131" xlink:to="loc_gree_SouthCarolinaDatacenterMember_92483132-7c52-4568-a2b2-426738b0f392" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementScenarioAxis_819d9df0-8c29-44cc-b388-e2e245dc464a" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_StatementScenarioAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_42d0e3fa-dcf7-4f51-a6a0-d5eb62e11831" xlink:to="loc_srt_StatementScenarioAxis_819d9df0-8c29-44cc-b388-e2e245dc464a" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_819d9df0-8c29-44cc-b388-e2e245dc464a_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_ScenarioUnspecifiedDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementScenarioAxis_819d9df0-8c29-44cc-b388-e2e245dc464a" xlink:to="loc_srt_ScenarioUnspecifiedDomain_819d9df0-8c29-44cc-b388-e2e245dc464a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_f4cf82d9-f05a-4f45-a150-763f3feefce4" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_ScenarioUnspecifiedDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementScenarioAxis_819d9df0-8c29-44cc-b388-e2e245dc464a" xlink:to="loc_srt_ScenarioUnspecifiedDomain_f4cf82d9-f05a-4f45-a150-763f3feefce4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScenarioPlanMember_6e597f61-1c32-4eb4-81b3-55e30d1cefcf" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScenarioPlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ScenarioUnspecifiedDomain_f4cf82d9-f05a-4f45-a150-763f3feefce4" xlink:to="loc_us-gaap_ScenarioPlanMember_6e597f61-1c32-4eb4-81b3-55e30d1cefcf" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_FacilitiesOwnedAndOperatedAreaOfLandSold_0048f01c-f2fe-4032-a78a-74d0136d29ab" xlink:href="gree-20250331.xsd#gree_FacilitiesOwnedAndOperatedAreaOfLandSold"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c6f6660a-f5a1-4a27-b309-3f39326d0185" xlink:to="loc_gree_FacilitiesOwnedAndOperatedAreaOfLandSold_0048f01c-f2fe-4032-a78a-74d0136d29ab" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ExtinguishmentOfDebtAmount_0e937a5f-9de2-4bc6-8fc5-872497e40075" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ExtinguishmentOfDebtAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c6f6660a-f5a1-4a27-b309-3f39326d0185" xlink:to="loc_us-gaap_ExtinguishmentOfDebtAmount_0e937a5f-9de2-4bc6-8fc5-872497e40075" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_CashAcquiredFromDisposalGroupIncludingDiscontinuedOperation_f43dccaf-0c44-4622-a40d-8079134befde" xlink:href="gree-20250331.xsd#gree_CashAcquiredFromDisposalGroupIncludingDiscontinuedOperation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c6f6660a-f5a1-4a27-b309-3f39326d0185" xlink:to="loc_gree_CashAcquiredFromDisposalGroupIncludingDiscontinuedOperation_f43dccaf-0c44-4622-a40d-8079134befde" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_DisposalGroupIncludingDiscontinuedOperationConsiderationFromSaleProfitParticipationPercentage_43d15bc8-f589-4b80-87d9-d1b91ad0dbe3" xlink:href="gree-20250331.xsd#gree_DisposalGroupIncludingDiscontinuedOperationConsiderationFromSaleProfitParticipationPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c6f6660a-f5a1-4a27-b309-3f39326d0185" xlink:to="loc_gree_DisposalGroupIncludingDiscontinuedOperationConsiderationFromSaleProfitParticipationPercentage_43d15bc8-f589-4b80-87d9-d1b91ad0dbe3" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_aca36641-5a9e-4432-a738-b22143d10416" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c6f6660a-f5a1-4a27-b309-3f39326d0185" xlink:to="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_aca36641-5a9e-4432-a738-b22143d10416" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRepurchasedFaceAmount_e6108b72-8304-4372-a5ab-d6740a18feb6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentRepurchasedFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c6f6660a-f5a1-4a27-b309-3f39326d0185" xlink:to="loc_us-gaap_DebtInstrumentRepurchasedFaceAmount_e6108b72-8304-4372-a5ab-d6740a18feb6" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_435ff3bb-2e02-4203-a9e0-1ad2a04a18a8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c6f6660a-f5a1-4a27-b309-3f39326d0185" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_435ff3bb-2e02-4203-a9e0-1ad2a04a18a8" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDebtExtinguishmentCosts_6d518e92-3264-40ee-86c2-e263dd492dc5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsOfDebtExtinguishmentCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c6f6660a-f5a1-4a27-b309-3f39326d0185" xlink:to="loc_us-gaap_PaymentsOfDebtExtinguishmentCosts_6d518e92-3264-40ee-86c2-e263dd492dc5" xlink:type="arc" order="7"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://greenidgellc.com/role/ASSETSHELDFORSALEDetails" xlink:type="simple" xlink:href="gree-20250331.xsd#ASSETSHELDFORSALEDetails"/>
  <link:definitionLink xlink:role="http://greenidgellc.com/role/ASSETSHELDFORSALEDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_5539fba7-45d3-43ce-bf38-d9bf539668bc" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_b6aea499-b9b4-4a24-96b8-a02b3b3fde70" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_5539fba7-45d3-43ce-bf38-d9bf539668bc" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_b6aea499-b9b4-4a24-96b8-a02b3b3fde70" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_eff0b586-935b-4fcb-85bb-53d1dca79241" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_b6aea499-b9b4-4a24-96b8-a02b3b3fde70" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_eff0b586-935b-4fcb-85bb-53d1dca79241" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_eff0b586-935b-4fcb-85bb-53d1dca79241_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_eff0b586-935b-4fcb-85bb-53d1dca79241" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_eff0b586-935b-4fcb-85bb-53d1dca79241_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_19fa80b9-49ff-4634-83e7-195f66960c1f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_eff0b586-935b-4fcb-85bb-53d1dca79241" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_19fa80b9-49ff-4634-83e7-195f66960c1f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_SouthCarolinaDatacenterMember_0072e3db-be6d-4def-820f-066e1c1d0ba5" xlink:href="gree-20250331.xsd#gree_SouthCarolinaDatacenterMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_19fa80b9-49ff-4634-83e7-195f66960c1f" xlink:to="loc_gree_SouthCarolinaDatacenterMember_0072e3db-be6d-4def-820f-066e1c1d0ba5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupClassificationAxis_e0480c27-b6c5-4c4e-95e3-6e00b54affcb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DisposalGroupClassificationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_b6aea499-b9b4-4a24-96b8-a02b3b3fde70" xlink:to="loc_us-gaap_DisposalGroupClassificationAxis_e0480c27-b6c5-4c4e-95e3-6e00b54affcb" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupClassificationDomain_e0480c27-b6c5-4c4e-95e3-6e00b54affcb_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DisposalGroupClassificationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DisposalGroupClassificationAxis_e0480c27-b6c5-4c4e-95e3-6e00b54affcb" xlink:to="loc_us-gaap_DisposalGroupClassificationDomain_e0480c27-b6c5-4c4e-95e3-6e00b54affcb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupClassificationDomain_8fe4c5c5-d3f5-4697-95bd-4e06330fb1ad" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DisposalGroupClassificationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DisposalGroupClassificationAxis_e0480c27-b6c5-4c4e-95e3-6e00b54affcb" xlink:to="loc_us-gaap_DisposalGroupClassificationDomain_8fe4c5c5-d3f5-4697-95bd-4e06330fb1ad" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DiscontinuedOperationsDisposedOfBySaleMember_06ea676c-02a6-402e-8b58-650393761aab" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DiscontinuedOperationsDisposedOfBySaleMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupClassificationDomain_8fe4c5c5-d3f5-4697-95bd-4e06330fb1ad" xlink:to="loc_us-gaap_DiscontinuedOperationsDisposedOfBySaleMember_06ea676c-02a6-402e-8b58-650393761aab" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_CashAcquiredFromDisposalGroupIncludingDiscontinuedOperation_a386d191-f2e4-4e3f-b488-e9df76f64b43" xlink:href="gree-20250331.xsd#gree_CashAcquiredFromDisposalGroupIncludingDiscontinuedOperation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_5539fba7-45d3-43ce-bf38-d9bf539668bc" xlink:to="loc_gree_CashAcquiredFromDisposalGroupIncludingDiscontinuedOperation_a386d191-f2e4-4e3f-b488-e9df76f64b43" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_DisposalGroupIncludingDiscontinuedOperationConsiderationFromSaleProfitParticipationPercentage_f106d9d4-5a8b-46d3-9bde-a06dc3d011a7" xlink:href="gree-20250331.xsd#gree_DisposalGroupIncludingDiscontinuedOperationConsiderationFromSaleProfitParticipationPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_5539fba7-45d3-43ce-bf38-d9bf539668bc" xlink:to="loc_gree_DisposalGroupIncludingDiscontinuedOperationConsiderationFromSaleProfitParticipationPercentage_f106d9d4-5a8b-46d3-9bde-a06dc3d011a7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsHeldForSaleNotPartOfDisposalGroup_f21c52d3-b79a-471b-be86-6d47b61a18af" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsHeldForSaleNotPartOfDisposalGroup"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_5539fba7-45d3-43ce-bf38-d9bf539668bc" xlink:to="loc_us-gaap_AssetsHeldForSaleNotPartOfDisposalGroup_f21c52d3-b79a-471b-be86-6d47b61a18af" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://greenidgellc.com/role/PROPERTYANDEQUIPMENTPropertyandEquipmentNetDetails" xlink:type="simple" xlink:href="gree-20250331.xsd#PROPERTYANDEQUIPMENTPropertyandEquipmentNetDetails"/>
  <link:definitionLink xlink:role="http://greenidgellc.com/role/PROPERTYANDEQUIPMENTPropertyandEquipmentNetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_bd5a97e7-0ad4-4afd-b24c-0813e0603ce1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_adf84751-0f98-4863-9fd8-6e6dac42af64" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_bd5a97e7-0ad4-4afd-b24c-0813e0603ce1" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_adf84751-0f98-4863-9fd8-6e6dac42af64" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_981cdbbc-0e56-4381-b4a6-a35a6ef25dcd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_adf84751-0f98-4863-9fd8-6e6dac42af64" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_981cdbbc-0e56-4381-b4a6-a35a6ef25dcd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_981cdbbc-0e56-4381-b4a6-a35a6ef25dcd_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_981cdbbc-0e56-4381-b4a6-a35a6ef25dcd" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_981cdbbc-0e56-4381-b4a6-a35a6ef25dcd_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_2fa045b3-44c9-479b-ae51-672c3ce78b38" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_981cdbbc-0e56-4381-b4a6-a35a6ef25dcd" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_2fa045b3-44c9-479b-ae51-672c3ce78b38" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_PlantInfrastructureMember_a07cbb9d-4e2a-4c0e-99d4-0860cc242ee2" xlink:href="gree-20250331.xsd#gree_PlantInfrastructureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_2fa045b3-44c9-479b-ae51-672c3ce78b38" xlink:to="loc_gree_PlantInfrastructureMember_a07cbb9d-4e2a-4c0e-99d4-0860cc242ee2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_MinersMember_5a8f1b97-1bed-4a3a-93c3-f4aebba34113" xlink:href="gree-20250331.xsd#gree_MinersMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_2fa045b3-44c9-479b-ae51-672c3ce78b38" xlink:to="loc_gree_MinersMember_5a8f1b97-1bed-4a3a-93c3-f4aebba34113" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_MinerFacilityMember_cd42fbdb-2e90-44bc-b05a-c6cb84f707de" xlink:href="gree-20250331.xsd#gree_MinerFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_2fa045b3-44c9-479b-ae51-672c3ce78b38" xlink:to="loc_gree_MinerFacilityMember_cd42fbdb-2e90-44bc-b05a-c6cb84f707de" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LandMember_1cd545d0-9525-467e-ac85-2d3e7ab956c4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LandMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_2fa045b3-44c9-479b-ae51-672c3ce78b38" xlink:to="loc_us-gaap_LandMember_1cd545d0-9525-467e-ac85-2d3e7ab956c4" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquipmentMember_3140f785-156c-4e26-ba1a-6a5a96719fcb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_2fa045b3-44c9-479b-ae51-672c3ce78b38" xlink:to="loc_us-gaap_EquipmentMember_3140f785-156c-4e26-ba1a-6a5a96719fcb" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConstructionInProgressMember_3cdda2a5-5048-4916-a125-a1bd4235e7f1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ConstructionInProgressMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_2fa045b3-44c9-479b-ae51-672c3ce78b38" xlink:to="loc_us-gaap_ConstructionInProgressMember_3cdda2a5-5048-4916-a125-a1bd4235e7f1" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_647bcdb9-41b3-42d5-a064-5938c3c046de" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_bd5a97e7-0ad4-4afd-b24c-0813e0603ce1" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_647bcdb9-41b3-42d5-a064-5938c3c046de" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_a6381cfc-30b4-4614-a1d6-f246ff703667" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_bd5a97e7-0ad4-4afd-b24c-0813e0603ce1" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_a6381cfc-30b4-4614-a1d6-f246ff703667" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_43af41ff-16f5-4717-a2c1-87d004b94dde" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_bd5a97e7-0ad4-4afd-b24c-0813e0603ce1" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_43af41ff-16f5-4717-a2c1-87d004b94dde" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_6030d296-2929-45f7-8062-7f7f37800885" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_bd5a97e7-0ad4-4afd-b24c-0813e0603ce1" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_6030d296-2929-45f7-8062-7f7f37800885" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://greenidgellc.com/role/PROPERTYANDEQUIPMENTNarrativeDetails" xlink:type="simple" xlink:href="gree-20250331.xsd#PROPERTYANDEQUIPMENTNarrativeDetails"/>
  <link:definitionLink xlink:role="http://greenidgellc.com/role/PROPERTYANDEQUIPMENTNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2779d2ed-fa35-4ff2-8f79-1f265a76404f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_85a155b1-a03d-40f9-95b9-bdadd6ee4c69" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2779d2ed-fa35-4ff2-8f79-1f265a76404f" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_85a155b1-a03d-40f9-95b9-bdadd6ee4c69" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_cb6dce95-1439-4b35-8f00-5360e49c602e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_85a155b1-a03d-40f9-95b9-bdadd6ee4c69" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_cb6dce95-1439-4b35-8f00-5360e49c602e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_cb6dce95-1439-4b35-8f00-5360e49c602e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_cb6dce95-1439-4b35-8f00-5360e49c602e" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_cb6dce95-1439-4b35-8f00-5360e49c602e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_1a60dd3f-547e-40e2-826e-a6f194a1f1e9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_cb6dce95-1439-4b35-8f00-5360e49c602e" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_1a60dd3f-547e-40e2-826e-a6f194a1f1e9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConstructionInProgressMember_89afdcac-f9ea-49a4-9627-a1a523d1f04f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ConstructionInProgressMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_1a60dd3f-547e-40e2-826e-a6f194a1f1e9" xlink:to="loc_us-gaap_ConstructionInProgressMember_89afdcac-f9ea-49a4-9627-a1a523d1f04f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Depreciation_2df08148-0914-41fa-92fb-28c1dd71314d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Depreciation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2779d2ed-fa35-4ff2-8f79-1f265a76404f" xlink:to="loc_us-gaap_Depreciation_2df08148-0914-41fa-92fb-28c1dd71314d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AreaOfLand_064fefac-55e3-4c4b-9bd1-f618ae1fcd01" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AreaOfLand"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2779d2ed-fa35-4ff2-8f79-1f265a76404f" xlink:to="loc_us-gaap_AreaOfLand_064fefac-55e3-4c4b-9bd1-f618ae1fcd01" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AreaOfRealEstateProperty_97675f89-85db-436b-8bf5-4375fb7de8a0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AreaOfRealEstateProperty"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2779d2ed-fa35-4ff2-8f79-1f265a76404f" xlink:to="loc_us-gaap_AreaOfRealEstateProperty_97675f89-85db-436b-8bf5-4375fb7de8a0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireLand_95cf7b61-b11e-4d5c-aeca-418968656c5b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsToAcquireLand"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2779d2ed-fa35-4ff2-8f79-1f265a76404f" xlink:to="loc_us-gaap_PaymentsToAcquireLand_95cf7b61-b11e-4d5c-aeca-418968656c5b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentDisposals_981ea5b6-5145-4196-ae30-771c1502c324" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentDisposals"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2779d2ed-fa35-4ff2-8f79-1f265a76404f" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentDisposals_981ea5b6-5145-4196-ae30-771c1502c324" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_4384f02a-a032-429a-9489-9528b0e5f01a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2779d2ed-fa35-4ff2-8f79-1f265a76404f" xlink:to="loc_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_4384f02a-a032-429a-9489-9528b0e5f01a" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnDispositionOfAssets1_1d474428-f4db-44f3-b915-09330f2c263a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_GainLossOnDispositionOfAssets1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2779d2ed-fa35-4ff2-8f79-1f265a76404f" xlink:to="loc_us-gaap_GainLossOnDispositionOfAssets1_1d474428-f4db-44f3-b915-09330f2c263a" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf_c6d9eb23-f52b-4115-9b7d-395f73c864ed" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2779d2ed-fa35-4ff2-8f79-1f265a76404f" xlink:to="loc_us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf_c6d9eb23-f52b-4115-9b7d-395f73c864ed" xlink:type="arc" order="7"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://greenidgellc.com/role/DEBTEquipmentFinancingAgreementsDetails" xlink:type="simple" xlink:href="gree-20250331.xsd#DEBTEquipmentFinancingAgreementsDetails"/>
  <link:definitionLink xlink:role="http://greenidgellc.com/role/DEBTEquipmentFinancingAgreementsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_3feef957-88d8-4a07-83c4-745be1e90849" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_73927218-fc40-40ec-9d63-505c04e06c46" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_3feef957-88d8-4a07-83c4-745be1e90849" xlink:to="loc_us-gaap_DebtInstrumentTable_73927218-fc40-40ec-9d63-505c04e06c46" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_6c151ca9-7622-4ffc-9ad1-18309d779e50" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_73927218-fc40-40ec-9d63-505c04e06c46" xlink:to="loc_us-gaap_DebtInstrumentAxis_6c151ca9-7622-4ffc-9ad1-18309d779e50" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_6c151ca9-7622-4ffc-9ad1-18309d779e50_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_6c151ca9-7622-4ffc-9ad1-18309d779e50" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_6c151ca9-7622-4ffc-9ad1-18309d779e50_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_3e1eda22-aef5-4836-a43d-8a15e6585989" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_6c151ca9-7622-4ffc-9ad1-18309d779e50" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_3e1eda22-aef5-4836-a43d-8a15e6585989" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_SeniorNotesDueOctober2026Member_ef067291-f172-4c62-85ae-e7b6ae09570a" xlink:href="gree-20250331.xsd#gree_SeniorNotesDueOctober2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_3e1eda22-aef5-4836-a43d-8a15e6585989" xlink:to="loc_gree_SeniorNotesDueOctober2026Member_ef067291-f172-4c62-85ae-e7b6ae09570a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_ad640465-6894-464c-994f-d9b7b07e61fb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_73927218-fc40-40ec-9d63-505c04e06c46" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_ad640465-6894-464c-994f-d9b7b07e61fb" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_ad640465-6894-464c-994f-d9b7b07e61fb_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_ad640465-6894-464c-994f-d9b7b07e61fb" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_ad640465-6894-464c-994f-d9b7b07e61fb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_caf19c85-a651-4c38-b8cf-0550b1fc33f5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_ad640465-6894-464c-994f-d9b7b07e61fb" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_caf19c85-a651-4c38-b8cf-0550b1fc33f5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_7a03bfa8-7031-4088-8442-bcd99864130f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_caf19c85-a651-4c38-b8cf-0550b1fc33f5" xlink:to="loc_us-gaap_SeniorNotesMember_7a03bfa8-7031-4088-8442-bcd99864130f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_87eb0e69-8e39-4720-b100-0a2838c9f104" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_3feef957-88d8-4a07-83c4-745be1e90849" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_87eb0e69-8e39-4720-b100-0a2838c9f104" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_48dd7c89-a572-46d7-b37a-c103d3c7731c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_3feef957-88d8-4a07-83c4-745be1e90849" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_48dd7c89-a572-46d7-b37a-c103d3c7731c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesPayable_1c14182f-fa73-4ac6-b467-0bc2c4cfd7af" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NotesPayable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_3feef957-88d8-4a07-83c4-745be1e90849" xlink:to="loc_us-gaap_NotesPayable_1c14182f-fa73-4ac6-b467-0bc2c4cfd7af" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_5410edc8-dc37-4138-a946-6c87240b6922" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_3feef957-88d8-4a07-83c4-745be1e90849" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_5410edc8-dc37-4138-a946-6c87240b6922" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_d62c17bb-719e-4503-abd3-93ab06669275" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongTermDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_3feef957-88d8-4a07-83c4-745be1e90849" xlink:to="loc_us-gaap_LongTermDebt_d62c17bb-719e-4503-abd3-93ab06669275" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesPayableCurrent_84b3c4ae-9e1e-47cd-8ec9-caa9bd9eca12" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NotesPayableCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_3feef957-88d8-4a07-83c4-745be1e90849" xlink:to="loc_us-gaap_NotesPayableCurrent_84b3c4ae-9e1e-47cd-8ec9-caa9bd9eca12" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermNotesPayable_fcf56b78-8e71-43af-b3fd-a86d385f8883" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongTermNotesPayable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_3feef957-88d8-4a07-83c4-745be1e90849" xlink:to="loc_us-gaap_LongTermNotesPayable_fcf56b78-8e71-43af-b3fd-a86d385f8883" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://greenidgellc.com/role/DEBTNarrativeDetails" xlink:type="simple" xlink:href="gree-20250331.xsd#DEBTNarrativeDetails"/>
  <link:definitionLink xlink:role="http://greenidgellc.com/role/DEBTNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_87173d6f-b67c-401f-bdd6-9c98400372f1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_fe0b2425-f013-4825-acce-52f8b6ea0ad3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_87173d6f-b67c-401f-bdd6-9c98400372f1" xlink:to="loc_us-gaap_DebtInstrumentTable_fe0b2425-f013-4825-acce-52f8b6ea0ad3" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_5acec99b-4a7b-4e94-b60a-2765a8d72283" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_fe0b2425-f013-4825-acce-52f8b6ea0ad3" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_5acec99b-4a7b-4e94-b60a-2765a8d72283" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_5acec99b-4a7b-4e94-b60a-2765a8d72283_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_5acec99b-4a7b-4e94-b60a-2765a8d72283" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_5acec99b-4a7b-4e94-b60a-2765a8d72283_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_cc1343a7-b0e9-489d-8231-17b3370bd276" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_5acec99b-4a7b-4e94-b60a-2765a8d72283" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_cc1343a7-b0e9-489d-8231-17b3370bd276" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_607c3926-2a48-438f-904e-db4ad94274ca" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_cc1343a7-b0e9-489d-8231-17b3370bd276" xlink:to="loc_us-gaap_SeniorNotesMember_607c3926-2a48-438f-904e-db4ad94274ca" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_e78f3c15-3034-4fce-9b54-49691fa7d38c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_fe0b2425-f013-4825-acce-52f8b6ea0ad3" xlink:to="loc_us-gaap_DebtInstrumentAxis_e78f3c15-3034-4fce-9b54-49691fa7d38c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_e78f3c15-3034-4fce-9b54-49691fa7d38c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_e78f3c15-3034-4fce-9b54-49691fa7d38c" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_e78f3c15-3034-4fce-9b54-49691fa7d38c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_ce1e6496-0a00-4894-a083-30a794560a50" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_e78f3c15-3034-4fce-9b54-49691fa7d38c" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_ce1e6496-0a00-4894-a083-30a794560a50" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_SeniorNotesDueOctober2026Member_72567c7c-0d71-43a4-ac4f-6cd77fee3202" xlink:href="gree-20250331.xsd#gree_SeniorNotesDueOctober2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_ce1e6496-0a00-4894-a083-30a794560a50" xlink:to="loc_gree_SeniorNotesDueOctober2026Member_72567c7c-0d71-43a4-ac4f-6cd77fee3202" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodAxis_b73ecf53-eed3-442b-88e3-cd775bfc2900" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentRedemptionPeriodAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_fe0b2425-f013-4825-acce-52f8b6ea0ad3" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPeriodAxis_b73ecf53-eed3-442b-88e3-cd775bfc2900" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_b73ecf53-eed3-442b-88e3-cd775bfc2900_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentRedemptionPeriodDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentRedemptionPeriodAxis_b73ecf53-eed3-442b-88e3-cd775bfc2900" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_b73ecf53-eed3-442b-88e3-cd775bfc2900_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_8cad86b3-4aba-4356-9799-7fc016762bdb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentRedemptionPeriodDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentRedemptionPeriodAxis_b73ecf53-eed3-442b-88e3-cd775bfc2900" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_8cad86b3-4aba-4356-9799-7fc016762bdb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodOneMember_e53aa660-172b-4e69-8fa7-82828f3d1544" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentRedemptionPeriodOneMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_8cad86b3-4aba-4356-9799-7fc016762bdb" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPeriodOneMember_e53aa660-172b-4e69-8fa7-82828f3d1544" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodTwoMember_703df34e-52ad-4a1f-aa91-d4782f4beaca" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentRedemptionPeriodTwoMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_8cad86b3-4aba-4356-9799-7fc016762bdb" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPeriodTwoMember_703df34e-52ad-4a1f-aa91-d4782f4beaca" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodThreeMember_be3b5170-8c9b-4d37-9bf6-4f830181c261" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentRedemptionPeriodThreeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_8cad86b3-4aba-4356-9799-7fc016762bdb" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPeriodThreeMember_be3b5170-8c9b-4d37-9bf6-4f830181c261" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodFourMember_1d553977-4c07-408d-a70d-4ec57b0c94ea" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentRedemptionPeriodFourMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_8cad86b3-4aba-4356-9799-7fc016762bdb" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPeriodFourMember_1d553977-4c07-408d-a70d-4ec57b0c94ea" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiarySaleOfStockAxis_26843815-ff0a-4c91-94f4-533ee1753954" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsidiarySaleOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_fe0b2425-f013-4825-acce-52f8b6ea0ad3" xlink:to="loc_us-gaap_SubsidiarySaleOfStockAxis_26843815-ff0a-4c91-94f4-533ee1753954" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_26843815-ff0a-4c91-94f4-533ee1753954_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_26843815-ff0a-4c91-94f4-533ee1753954" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_26843815-ff0a-4c91-94f4-533ee1753954_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_c5195d49-04ed-41bf-bea4-31683707c0a3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_26843815-ff0a-4c91-94f4-533ee1753954" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_c5195d49-04ed-41bf-bea4-31683707c0a3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_ExchangeAgreementMember_a8af824e-ac66-4389-85a1-5bcc1fbb5517" xlink:href="gree-20250331.xsd#gree_ExchangeAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_c5195d49-04ed-41bf-bea4-31683707c0a3" xlink:to="loc_gree_ExchangeAgreementMember_a8af824e-ac66-4389-85a1-5bcc1fbb5517" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseNonoperating_9ffcd29d-2368-477f-8174-67416ba5cb1a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InterestExpenseNonoperating"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_87173d6f-b67c-401f-bdd6-9c98400372f1" xlink:to="loc_us-gaap_InterestExpenseNonoperating_9ffcd29d-2368-477f-8174-67416ba5cb1a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotes_c055c3ab-8864-441d-936b-89fdb4eac8b3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SeniorNotes"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_87173d6f-b67c-401f-bdd6-9c98400372f1" xlink:to="loc_us-gaap_SeniorNotes_c055c3ab-8864-441d-936b-89fdb4eac8b3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_DebtInstrumentRedeemPercentage_a2e35614-7f77-471c-8c68-31494afbfb7d" xlink:href="gree-20250331.xsd#gree_DebtInstrumentRedeemPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_87173d6f-b67c-401f-bdd6-9c98400372f1" xlink:to="loc_gree_DebtInstrumentRedeemPercentage_a2e35614-7f77-471c-8c68-31494afbfb7d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_2f710b02-66ca-4f12-8625-18c768b0b587" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_87173d6f-b67c-401f-bdd6-9c98400372f1" xlink:to="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_2f710b02-66ca-4f12-8625-18c768b0b587" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_StockIssuedDuringPeriodValueDebtModificationAmendmentFee_b04982ac-47d0-4bf4-85d7-0877c79c5d17" xlink:href="gree-20250331.xsd#gree_StockIssuedDuringPeriodValueDebtModificationAmendmentFee"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_87173d6f-b67c-401f-bdd6-9c98400372f1" xlink:to="loc_gree_StockIssuedDuringPeriodValueDebtModificationAmendmentFee_b04982ac-47d0-4bf4-85d7-0877c79c5d17" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRepurchasedFaceAmount_3e90e371-c2fe-4c7c-823f-cf7c31b8717d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentRepurchasedFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_87173d6f-b67c-401f-bdd6-9c98400372f1" xlink:to="loc_us-gaap_DebtInstrumentRepurchasedFaceAmount_3e90e371-c2fe-4c7c-823f-cf7c31b8717d" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotionalAmountOfNonderivativeInstruments_d656cb54-f589-4fc4-b72f-a9a43b2d8d45" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NotionalAmountOfNonderivativeInstruments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_87173d6f-b67c-401f-bdd6-9c98400372f1" xlink:to="loc_us-gaap_NotionalAmountOfNonderivativeInstruments_d656cb54-f589-4fc4-b72f-a9a43b2d8d45" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFairValue_0c60ec3b-36e4-40f9-be57-a565c15b36e9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_87173d6f-b67c-401f-bdd6-9c98400372f1" xlink:to="loc_us-gaap_DebtInstrumentFairValue_0c60ec3b-36e4-40f9-be57-a565c15b36e9" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_3788bcd9-7f47-4686-a95d-9a00e9d7fa0f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_87173d6f-b67c-401f-bdd6-9c98400372f1" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_3788bcd9-7f47-4686-a95d-9a00e9d7fa0f" xlink:type="arc" order="8"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://greenidgellc.com/role/DEBTInterestExpenseDetails" xlink:type="simple" xlink:href="gree-20250331.xsd#DEBTInterestExpenseDetails"/>
  <link:definitionLink xlink:role="http://greenidgellc.com/role/DEBTInterestExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_9b2fa4a2-b908-4919-a300-ead7a3014ef8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_2188e5bd-339f-4d5c-9de7-8b4bdf8386ae" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_9b2fa4a2-b908-4919-a300-ead7a3014ef8" xlink:to="loc_us-gaap_DebtInstrumentTable_2188e5bd-339f-4d5c-9de7-8b4bdf8386ae" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_c03ce9e7-fa7a-49a5-b78b-55786b55a384" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_2188e5bd-339f-4d5c-9de7-8b4bdf8386ae" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_c03ce9e7-fa7a-49a5-b78b-55786b55a384" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_c03ce9e7-fa7a-49a5-b78b-55786b55a384_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_c03ce9e7-fa7a-49a5-b78b-55786b55a384" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_c03ce9e7-fa7a-49a5-b78b-55786b55a384_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_2587f994-f007-4685-b0b5-612ba29aaff1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_c03ce9e7-fa7a-49a5-b78b-55786b55a384" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_2587f994-f007-4685-b0b5-612ba29aaff1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_18c47448-333d-49b3-8ccd-7ac7535094d1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_2587f994-f007-4685-b0b5-612ba29aaff1" xlink:to="loc_us-gaap_SeniorNotesMember_18c47448-333d-49b3-8ccd-7ac7535094d1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseDebtExcludingAmortization_34aa853f-e6a9-46e5-a491-f8c77be78031" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InterestExpenseDebtExcludingAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_9b2fa4a2-b908-4919-a300-ead7a3014ef8" xlink:to="loc_us-gaap_InterestExpenseDebtExcludingAmortization_34aa853f-e6a9-46e5-a491-f8c77be78031" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfFinancingCostsAndDiscounts_85069ddf-ade3-4acd-83de-fe658c591057" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AmortizationOfFinancingCostsAndDiscounts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_9b2fa4a2-b908-4919-a300-ead7a3014ef8" xlink:to="loc_us-gaap_AmortizationOfFinancingCostsAndDiscounts_85069ddf-ade3-4acd-83de-fe658c591057" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseDebt_dad19bc3-989c-4080-a55b-e03e7224926a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InterestExpenseDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_9b2fa4a2-b908-4919-a300-ead7a3014ef8" xlink:to="loc_us-gaap_InterestExpenseDebt_dad19bc3-989c-4080-a55b-e03e7224926a" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://greenidgellc.com/role/LOSSPERSHAREAntidilutiveSecuritiesDetails" xlink:type="simple" xlink:href="gree-20250331.xsd#LOSSPERSHAREAntidilutiveSecuritiesDetails"/>
  <link:definitionLink xlink:role="http://greenidgellc.com/role/LOSSPERSHAREAntidilutiveSecuritiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_4d74cb1e-4432-44f5-9346-154830e86561" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_13352d7c-7260-4337-b49e-407f17a82e9c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_4d74cb1e-4432-44f5-9346-154830e86561" xlink:to="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_13352d7c-7260-4337-b49e-407f17a82e9c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_fffa2abc-65e9-454b-ada0-83f94f04b61f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_13352d7c-7260-4337-b49e-407f17a82e9c" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_fffa2abc-65e9-454b-ada0-83f94f04b61f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_fffa2abc-65e9-454b-ada0-83f94f04b61f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_fffa2abc-65e9-454b-ada0-83f94f04b61f" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_fffa2abc-65e9-454b-ada0-83f94f04b61f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_b0b26059-9aae-458f-844a-80fb87ad892d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_fffa2abc-65e9-454b-ada0-83f94f04b61f" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_b0b26059-9aae-458f-844a-80fb87ad892d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_dd5dab47-8812-4e34-8ff3-35517d085831" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_b0b26059-9aae-458f-844a-80fb87ad892d" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_dd5dab47-8812-4e34-8ff3-35517d085831" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember_4589fd0e-b92b-4407-b239-2307b56c7ce2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EmployeeStockOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_b0b26059-9aae-458f-844a-80fb87ad892d" xlink:to="loc_us-gaap_EmployeeStockOptionMember_4589fd0e-b92b-4407-b239-2307b56c7ce2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantMember_45f3db84-6f92-4b56-9480-2ce2bd9f0f95" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_WarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_b0b26059-9aae-458f-844a-80fb87ad892d" xlink:to="loc_us-gaap_WarrantMember_45f3db84-6f92-4b56-9480-2ce2bd9f0f95" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_61590e17-613d-4b1f-b444-f8d54e5a45f7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_4d74cb1e-4432-44f5-9346-154830e86561" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_61590e17-613d-4b1f-b444-f8d54e5a45f7" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://greenidgellc.com/role/EQUITYBASEDCOMPENSATIONNarrativeDetails" xlink:type="simple" xlink:href="gree-20250331.xsd#EQUITYBASEDCOMPENSATIONNarrativeDetails"/>
  <link:definitionLink xlink:role="http://greenidgellc.com/role/EQUITYBASEDCOMPENSATIONNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_gree_DisclosureOfCompensationRelatedCostsSharebasedPaymentsLineItems_2f7a92cf-47e0-4fc3-9d62-3702101f8fb6" xlink:href="gree-20250331.xsd#gree_DisclosureOfCompensationRelatedCostsSharebasedPaymentsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_DisclosureOfCompensationRelatedCostsSharebasedPaymentsTable_0b1c5f37-ac63-4ef1-b343-62abb849cb95" xlink:href="gree-20250331.xsd#gree_DisclosureOfCompensationRelatedCostsSharebasedPaymentsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_gree_DisclosureOfCompensationRelatedCostsSharebasedPaymentsLineItems_2f7a92cf-47e0-4fc3-9d62-3702101f8fb6" xlink:to="loc_gree_DisclosureOfCompensationRelatedCostsSharebasedPaymentsTable_0b1c5f37-ac63-4ef1-b343-62abb849cb95" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_4b3910a1-bc6c-48d0-a8ca-e426394d4fd1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_gree_DisclosureOfCompensationRelatedCostsSharebasedPaymentsTable_0b1c5f37-ac63-4ef1-b343-62abb849cb95" xlink:to="loc_us-gaap_AwardTypeAxis_4b3910a1-bc6c-48d0-a8ca-e426394d4fd1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_4b3910a1-bc6c-48d0-a8ca-e426394d4fd1_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_4b3910a1-bc6c-48d0-a8ca-e426394d4fd1" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_4b3910a1-bc6c-48d0-a8ca-e426394d4fd1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_80077760-0ad3-42c7-9393-ff874566fc64" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_4b3910a1-bc6c-48d0-a8ca-e426394d4fd1" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_80077760-0ad3-42c7-9393-ff874566fc64" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_RestrictedStockUnitsAndRestrictedStockAwardsMember_2bf321a0-72f6-442b-a6cb-dcc04f19d711" xlink:href="gree-20250331.xsd#gree_RestrictedStockUnitsAndRestrictedStockAwardsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_80077760-0ad3-42c7-9393-ff874566fc64" xlink:to="loc_gree_RestrictedStockUnitsAndRestrictedStockAwardsMember_2bf321a0-72f6-442b-a6cb-dcc04f19d711" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember_131b6b33-c640-4180-9038-e0a1ed6b4a6b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EmployeeStockOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_80077760-0ad3-42c7-9393-ff874566fc64" xlink:to="loc_us-gaap_EmployeeStockOptionMember_131b6b33-c640-4180-9038-e0a1ed6b4a6b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameAxis_77d74945-79e8-49e8-9756-54ca8466059d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PlanNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_gree_DisclosureOfCompensationRelatedCostsSharebasedPaymentsTable_0b1c5f37-ac63-4ef1-b343-62abb849cb95" xlink:to="loc_us-gaap_PlanNameAxis_77d74945-79e8-49e8-9756-54ca8466059d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_77d74945-79e8-49e8-9756-54ca8466059d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PlanNameAxis_77d74945-79e8-49e8-9756-54ca8466059d" xlink:to="loc_us-gaap_PlanNameDomain_77d74945-79e8-49e8-9756-54ca8466059d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_9fa0271c-9fe8-4214-9375-880cb5aff7ef" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PlanNameAxis_77d74945-79e8-49e8-9756-54ca8466059d" xlink:to="loc_us-gaap_PlanNameDomain_9fa0271c-9fe8-4214-9375-880cb5aff7ef" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_TwoThousandAndTwentyOneEquityPlanMember_1b25d818-ece4-401c-ae85-ef770fdef801" xlink:href="gree-20250331.xsd#gree_TwoThousandAndTwentyOneEquityPlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_9fa0271c-9fe8-4214-9375-880cb5aff7ef" xlink:to="loc_gree_TwoThousandAndTwentyOneEquityPlanMember_1b25d818-ece4-401c-ae85-ef770fdef801" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_e30d8ef4-7b86-4b92-add3-0ab691a02ba0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_gree_DisclosureOfCompensationRelatedCostsSharebasedPaymentsTable_0b1c5f37-ac63-4ef1-b343-62abb849cb95" xlink:to="loc_us-gaap_StatementClassOfStockAxis_e30d8ef4-7b86-4b92-add3-0ab691a02ba0" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_e30d8ef4-7b86-4b92-add3-0ab691a02ba0_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_e30d8ef4-7b86-4b92-add3-0ab691a02ba0" xlink:to="loc_us-gaap_ClassOfStockDomain_e30d8ef4-7b86-4b92-add3-0ab691a02ba0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_828aed91-e593-42f7-a249-49c830aebefd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_e30d8ef4-7b86-4b92-add3-0ab691a02ba0" xlink:to="loc_us-gaap_ClassOfStockDomain_828aed91-e593-42f7-a249-49c830aebefd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_d55d83bd-5391-46d5-b1fc-6b4217b23127" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_828aed91-e593-42f7-a249-49c830aebefd" xlink:to="loc_us-gaap_CommonClassAMember_d55d83bd-5391-46d5-b1fc-6b4217b23127" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockCapitalSharesReservedForFutureIssuance_c08c2ea6-03c1-4717-964e-5040d0622d8f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockCapitalSharesReservedForFutureIssuance"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_gree_DisclosureOfCompensationRelatedCostsSharebasedPaymentsLineItems_2f7a92cf-47e0-4fc3-9d62-3702101f8fb6" xlink:to="loc_us-gaap_CommonStockCapitalSharesReservedForFutureIssuance_c08c2ea6-03c1-4717-964e-5040d0622d8f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized_3a25b23b-1df3-4851-a424-8e21806e9670" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_gree_DisclosureOfCompensationRelatedCostsSharebasedPaymentsLineItems_2f7a92cf-47e0-4fc3-9d62-3702101f8fb6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized_3a25b23b-1df3-4851-a424-8e21806e9670" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_CommonStockCapitalSharesRemovedForFutureIssuanceConversionRatio_ae077ed6-53a2-4e58-b60b-f22187e3a788" xlink:href="gree-20250331.xsd#gree_CommonStockCapitalSharesRemovedForFutureIssuanceConversionRatio"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_gree_DisclosureOfCompensationRelatedCostsSharebasedPaymentsLineItems_2f7a92cf-47e0-4fc3-9d62-3702101f8fb6" xlink:to="loc_gree_CommonStockCapitalSharesRemovedForFutureIssuanceConversionRatio_ae077ed6-53a2-4e58-b60b-f22187e3a788" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesRegistered_67d015cb-b553-44cc-8b6a-c9f411dd8c61" xlink:href="gree-20250331.xsd#gree_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesRegistered"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_gree_DisclosureOfCompensationRelatedCostsSharebasedPaymentsLineItems_2f7a92cf-47e0-4fc3-9d62-3702101f8fb6" xlink:to="loc_gree_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesRegistered_67d015cb-b553-44cc-8b6a-c9f411dd8c61" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_22702cdb-46d2-4f27-b984-aa9fc465afbf" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_gree_DisclosureOfCompensationRelatedCostsSharebasedPaymentsLineItems_2f7a92cf-47e0-4fc3-9d62-3702101f8fb6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_22702cdb-46d2-4f27-b984-aa9fc465afbf" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_ccbc21ad-83c4-4b2f-b26d-1aacea60b191" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_gree_DisclosureOfCompensationRelatedCostsSharebasedPaymentsLineItems_2f7a92cf-47e0-4fc3-9d62-3702101f8fb6" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_ccbc21ad-83c4-4b2f-b26d-1aacea60b191" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_2764d4b8-78aa-40d4-b1fd-3e5f9b6ec527" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_gree_DisclosureOfCompensationRelatedCostsSharebasedPaymentsLineItems_2f7a92cf-47e0-4fc3-9d62-3702101f8fb6" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_2764d4b8-78aa-40d4-b1fd-3e5f9b6ec527" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_11d5d066-9c7c-4ea7-8e6d-64e289145aa8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_gree_DisclosureOfCompensationRelatedCostsSharebasedPaymentsLineItems_2f7a92cf-47e0-4fc3-9d62-3702101f8fb6" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_11d5d066-9c7c-4ea7-8e6d-64e289145aa8" xlink:type="arc" order="7"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://greenidgellc.com/role/EQUITYBASEDCOMPENSATIONRSAsandRSUsDetails" xlink:type="simple" xlink:href="gree-20250331.xsd#EQUITYBASEDCOMPENSATIONRSAsandRSUsDetails"/>
  <link:definitionLink xlink:role="http://greenidgellc.com/role/EQUITYBASEDCOMPENSATIONRSAsandRSUsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_2ea0b856-7558-4f8e-99a5-19fc48f3b6ec" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_ac692aa2-fb16-458a-a94d-4cf34fa0dfba" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_2ea0b856-7558-4f8e-99a5-19fc48f3b6ec" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_ac692aa2-fb16-458a-a94d-4cf34fa0dfba" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_f1bc4f70-85e1-4081-bd89-e3194f12d03c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_ac692aa2-fb16-458a-a94d-4cf34fa0dfba" xlink:to="loc_us-gaap_AwardTypeAxis_f1bc4f70-85e1-4081-bd89-e3194f12d03c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_f1bc4f70-85e1-4081-bd89-e3194f12d03c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_f1bc4f70-85e1-4081-bd89-e3194f12d03c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_f1bc4f70-85e1-4081-bd89-e3194f12d03c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_679a1575-8e5b-4f7e-a834-c7dc752c8b92" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_f1bc4f70-85e1-4081-bd89-e3194f12d03c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_679a1575-8e5b-4f7e-a834-c7dc752c8b92" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_RestrictedStockUnitsAndRestrictedStockAwardsMember_f0df3569-90ac-4dcc-aef5-35499e027809" xlink:href="gree-20250331.xsd#gree_RestrictedStockUnitsAndRestrictedStockAwardsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_679a1575-8e5b-4f7e-a834-c7dc752c8b92" xlink:to="loc_gree_RestrictedStockUnitsAndRestrictedStockAwardsMember_f0df3569-90ac-4dcc-aef5-35499e027809" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_f6b69326-8bac-4f8b-a6b3-aa038c01ef3e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_2ea0b856-7558-4f8e-99a5-19fc48f3b6ec" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_f6b69326-8bac-4f8b-a6b3-aa038c01ef3e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_9ee53a48-c614-4cf5-b5e4-e6cc3efdedc2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_f6b69326-8bac-4f8b-a6b3-aa038c01ef3e" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_9ee53a48-c614-4cf5-b5e4-e6cc3efdedc2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_74e54e44-a2d4-4550-9d2f-877ee0598003" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_f6b69326-8bac-4f8b-a6b3-aa038c01ef3e" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_74e54e44-a2d4-4550-9d2f-877ee0598003" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_6aa5298b-bd16-4df0-8ace-f465e00569aa" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_f6b69326-8bac-4f8b-a6b3-aa038c01ef3e" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_6aa5298b-bd16-4df0-8ace-f465e00569aa" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_8f7456d4-4424-40d6-9bd5-af7015a0c026" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_d7dabada-e430-4808-835a-531505929067" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_2ea0b856-7558-4f8e-99a5-19fc48f3b6ec" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_d7dabada-e430-4808-835a-531505929067" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_a8b4146c-ea60-43f4-8c81-55711cd59614" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_d7dabada-e430-4808-835a-531505929067" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_a8b4146c-ea60-43f4-8c81-55711cd59614" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_fe4ae006-5bc1-4828-aefc-253747403494" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_d7dabada-e430-4808-835a-531505929067" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_fe4ae006-5bc1-4828-aefc-253747403494" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_884981d8-68f5-4fa3-8880-dc5b187306a2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_d7dabada-e430-4808-835a-531505929067" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_884981d8-68f5-4fa3-8880-dc5b187306a2" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_2a8568bd-865d-4384-aeb3-9429bf9c6bd8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://greenidgellc.com/role/EQUITYBASEDCOMPENSATIONCommonStockOptionsDetails" xlink:type="simple" xlink:href="gree-20250331.xsd#EQUITYBASEDCOMPENSATIONCommonStockOptionsDetails"/>
  <link:definitionLink xlink:role="http://greenidgellc.com/role/EQUITYBASEDCOMPENSATIONCommonStockOptionsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_674c20da-6830-4b89-abf0-0905f0f29401" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_413312f5-4076-495d-8f4c-72578f17da15" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_674c20da-6830-4b89-abf0-0905f0f29401" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_413312f5-4076-495d-8f4c-72578f17da15" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_e50635d9-6f40-456c-a36e-be5ef0351297" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_413312f5-4076-495d-8f4c-72578f17da15" xlink:to="loc_us-gaap_AwardTypeAxis_e50635d9-6f40-456c-a36e-be5ef0351297" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_e50635d9-6f40-456c-a36e-be5ef0351297_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_e50635d9-6f40-456c-a36e-be5ef0351297" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_e50635d9-6f40-456c-a36e-be5ef0351297_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_6a37f59e-5ce8-43b3-ade6-069e94283b09" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_e50635d9-6f40-456c-a36e-be5ef0351297" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_6a37f59e-5ce8-43b3-ade6-069e94283b09" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember_655a98c5-e5b8-4adb-88bd-3ba2cdf07d62" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EmployeeStockOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_6a37f59e-5ce8-43b3-ade6-069e94283b09" xlink:to="loc_us-gaap_EmployeeStockOptionMember_655a98c5-e5b8-4adb-88bd-3ba2cdf07d62" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_58af50ec-a75c-48c1-9b37-d1aab725995c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_674c20da-6830-4b89-abf0-0905f0f29401" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_58af50ec-a75c-48c1-9b37-d1aab725995c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_5b7a0ece-07d2-4fd9-8556-b025f75b5175" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_58af50ec-a75c-48c1-9b37-d1aab725995c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_5b7a0ece-07d2-4fd9-8556-b025f75b5175" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod_dc4a6ac8-5dd7-4957-901f-6d5a882e4130" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_58af50ec-a75c-48c1-9b37-d1aab725995c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod_dc4a6ac8-5dd7-4957-901f-6d5a882e4130" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_39e3f4a0-2406-42d2-89cc-1093f356e681" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_5697b3ac-efda-4c60-8600-db9ecc8ae509" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_674c20da-6830-4b89-abf0-0905f0f29401" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_5697b3ac-efda-4c60-8600-db9ecc8ae509" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_fe649e8f-c8b9-44c6-a510-c96b8c1d6c06" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_674c20da-6830-4b89-abf0-0905f0f29401" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_fe649e8f-c8b9-44c6-a510-c96b8c1d6c06" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_618b6ad8-fd4c-46e9-a74d-917e8e019b14" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_fe649e8f-c8b9-44c6-a510-c96b8c1d6c06" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_618b6ad8-fd4c-46e9-a74d-917e8e019b14" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice_8c55adcb-ab72-419a-8de3-1bd1182b749b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_fe649e8f-c8b9-44c6-a510-c96b8c1d6c06" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice_8c55adcb-ab72-419a-8de3-1bd1182b749b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_00a02e84-1e2b-480d-a085-2288f7ba028f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_34f26649-f0b9-484b-a895-a9cf988ace1a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_674c20da-6830-4b89-abf0-0905f0f29401" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_34f26649-f0b9-484b-a895-a9cf988ace1a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract_7d786fee-8e29-4661-b39a-5c7c45728b1c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_674c20da-6830-4b89-abf0-0905f0f29401" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract_7d786fee-8e29-4661-b39a-5c7c45728b1c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_6a6e8e9d-0c24-453c-91ea-ba3873750183" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract_7d786fee-8e29-4661-b39a-5c7c45728b1c" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_6a6e8e9d-0c24-453c-91ea-ba3873750183" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_3dcc9158-041d-4f5f-b907-d2f7a413db75" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract_7d786fee-8e29-4661-b39a-5c7c45728b1c" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_3dcc9158-041d-4f5f-b907-d2f7a413db75" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_1722a23a-46e1-4615-abb3-e4e6e7836b43" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract_7d786fee-8e29-4661-b39a-5c7c45728b1c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_1722a23a-46e1-4615-abb3-e4e6e7836b43" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_8154f920-3ca2-402b-8a5d-0887a79d0a9a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1_e48c0df6-8f95-480d-a91a-b9aa626d08e9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract_7d786fee-8e29-4661-b39a-5c7c45728b1c" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1_e48c0df6-8f95-480d-a91a-b9aa626d08e9" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://greenidgellc.com/role/STOCKHOLDERSDEFICITNarrativeDetails" xlink:type="simple" xlink:href="gree-20250331.xsd#STOCKHOLDERSDEFICITNarrativeDetails"/>
  <link:definitionLink xlink:role="http://greenidgellc.com/role/STOCKHOLDERSDEFICITNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockLineItems_a5b677e4-3b13-4703-bd46-633bf72bb045" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_448960dd-6443-43ff-93dd-bd2cb405f9df" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfStockByClassTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ClassOfStockLineItems_a5b677e4-3b13-4703-bd46-633bf72bb045" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_448960dd-6443-43ff-93dd-bd2cb405f9df" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiarySaleOfStockAxis_55f0f44d-bad0-4500-88e3-b01213b3a918" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsidiarySaleOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_448960dd-6443-43ff-93dd-bd2cb405f9df" xlink:to="loc_us-gaap_SubsidiarySaleOfStockAxis_55f0f44d-bad0-4500-88e3-b01213b3a918" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_55f0f44d-bad0-4500-88e3-b01213b3a918_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_55f0f44d-bad0-4500-88e3-b01213b3a918" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_55f0f44d-bad0-4500-88e3-b01213b3a918_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_c27ab4cc-b896-4b3d-81c8-8a46783bb508" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_55f0f44d-bad0-4500-88e3-b01213b3a918" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_c27ab4cc-b896-4b3d-81c8-8a46783bb508" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_CommonStockPurchaseAgreementMember_fd74c083-e416-475f-85a6-00f5d3271e40" xlink:href="gree-20250331.xsd#gree_CommonStockPurchaseAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_c27ab4cc-b896-4b3d-81c8-8a46783bb508" xlink:to="loc_gree_CommonStockPurchaseAgreementMember_fd74c083-e416-475f-85a6-00f5d3271e40" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_AtTheMarketIssuanceSalesAgreementMember_d7d6b011-d561-4558-8323-27480df8544e" xlink:href="gree-20250331.xsd#gree_AtTheMarketIssuanceSalesAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_c27ab4cc-b896-4b3d-81c8-8a46783bb508" xlink:to="loc_gree_AtTheMarketIssuanceSalesAgreementMember_d7d6b011-d561-4558-8323-27480df8544e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_SecuritiesPurchaseAgreementMember_60aadd79-7276-4293-b788-eb8c81a9ea91" xlink:href="gree-20250331.xsd#gree_SecuritiesPurchaseAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_c27ab4cc-b896-4b3d-81c8-8a46783bb508" xlink:to="loc_gree_SecuritiesPurchaseAgreementMember_60aadd79-7276-4293-b788-eb8c81a9ea91" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_ExchangeAgreementMember_50a63097-ade6-4b58-8a0e-e2cfea0a5cf5" xlink:href="gree-20250331.xsd#gree_ExchangeAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_c27ab4cc-b896-4b3d-81c8-8a46783bb508" xlink:to="loc_gree_ExchangeAgreementMember_50a63097-ade6-4b58-8a0e-e2cfea0a5cf5" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_DebtExchangeAgreementsMember_989393b5-75e8-4639-a586-a42e2529010a" xlink:href="gree-20250331.xsd#gree_DebtExchangeAgreementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_c27ab4cc-b896-4b3d-81c8-8a46783bb508" xlink:to="loc_gree_DebtExchangeAgreementsMember_989393b5-75e8-4639-a586-a42e2529010a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_1b79b2a6-d353-46f4-bb33-1e0b0663ea29" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_448960dd-6443-43ff-93dd-bd2cb405f9df" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_1b79b2a6-d353-46f4-bb33-1e0b0663ea29" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_1b79b2a6-d353-46f4-bb33-1e0b0663ea29_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_1b79b2a6-d353-46f4-bb33-1e0b0663ea29" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_1b79b2a6-d353-46f4-bb33-1e0b0663ea29_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_7b5edbcd-e112-47f9-802c-ccb6095e3e8a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_1b79b2a6-d353-46f4-bb33-1e0b0663ea29" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_7b5edbcd-e112-47f9-802c-ccb6095e3e8a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_February2024PreFundedWarrantMember_40c4fabe-2823-4c23-ba13-8f092ded5e05" xlink:href="gree-20250331.xsd#gree_February2024PreFundedWarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_7b5edbcd-e112-47f9-802c-ccb6095e3e8a" xlink:to="loc_gree_February2024PreFundedWarrantMember_40c4fabe-2823-4c23-ba13-8f092ded5e05" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_CommonStockWarrantMember_356385c5-4d8d-42d6-a437-e85ee057a960" xlink:href="gree-20250331.xsd#gree_CommonStockWarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_7b5edbcd-e112-47f9-802c-ccb6095e3e8a" xlink:to="loc_gree_CommonStockWarrantMember_356385c5-4d8d-42d6-a437-e85ee057a960" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_0a785c0f-d380-49a2-83a5-4f028f433085" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_448960dd-6443-43ff-93dd-bd2cb405f9df" xlink:to="loc_dei_LegalEntityAxis_0a785c0f-d380-49a2-83a5-4f028f433085" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_0a785c0f-d380-49a2-83a5-4f028f433085_default" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_0a785c0f-d380-49a2-83a5-4f028f433085" xlink:to="loc_dei_EntityDomain_0a785c0f-d380-49a2-83a5-4f028f433085_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_dd6abfa4-6217-4ff0-b1c7-a54f0327b941" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_0a785c0f-d380-49a2-83a5-4f028f433085" xlink:to="loc_dei_EntityDomain_dd6abfa4-6217-4ff0-b1c7-a54f0327b941" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_AtlasHoldingsLLCMember_c890c5d6-3caa-486e-ab25-e953998a9ddb" xlink:href="gree-20250331.xsd#gree_AtlasHoldingsLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_dd6abfa4-6217-4ff0-b1c7-a54f0327b941" xlink:to="loc_gree_AtlasHoldingsLLCMember_c890c5d6-3caa-486e-ab25-e953998a9ddb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_ef28f5ea-0458-46d6-a0fd-c6fbd5efe07a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_448960dd-6443-43ff-93dd-bd2cb405f9df" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_ef28f5ea-0458-46d6-a0fd-c6fbd5efe07a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_ef28f5ea-0458-46d6-a0fd-c6fbd5efe07a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_ef28f5ea-0458-46d6-a0fd-c6fbd5efe07a" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_ef28f5ea-0458-46d6-a0fd-c6fbd5efe07a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_c0d4ab27-3eda-4e10-a81e-625562f786cc" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_ef28f5ea-0458-46d6-a0fd-c6fbd5efe07a" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_c0d4ab27-3eda-4e10-a81e-625562f786cc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LetterOfCreditMember_2584b638-e364-4a12-87d5-0f591bf9eae0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LetterOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_c0d4ab27-3eda-4e10-a81e-625562f786cc" xlink:to="loc_us-gaap_LetterOfCreditMember_2584b638-e364-4a12-87d5-0f591bf9eae0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_adfc2226-e67a-4285-9f59-aad33e03bd6c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_c0d4ab27-3eda-4e10-a81e-625562f786cc" xlink:to="loc_us-gaap_SeniorNotesMember_adfc2226-e67a-4285-9f59-aad33e03bd6c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_d1fdce15-fac3-4d96-b860-a8f668d13f5f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_448960dd-6443-43ff-93dd-bd2cb405f9df" xlink:to="loc_us-gaap_DebtInstrumentAxis_d1fdce15-fac3-4d96-b860-a8f668d13f5f" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_d1fdce15-fac3-4d96-b860-a8f668d13f5f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_d1fdce15-fac3-4d96-b860-a8f668d13f5f" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_d1fdce15-fac3-4d96-b860-a8f668d13f5f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_077a0d44-af94-42c0-8d01-13e0c95c6bb4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_d1fdce15-fac3-4d96-b860-a8f668d13f5f" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_077a0d44-af94-42c0-8d01-13e0c95c6bb4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_SeniorNotesDueOctober2026Member_993a4228-7e7d-48af-9605-6a206d47fed5" xlink:href="gree-20250331.xsd#gree_SeniorNotesDueOctober2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_077a0d44-af94-42c0-8d01-13e0c95c6bb4" xlink:to="loc_gree_SeniorNotesDueOctober2026Member_993a4228-7e7d-48af-9605-6a206d47fed5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_35f44dfe-b4c0-471e-9ee9-716ad097e79b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_448960dd-6443-43ff-93dd-bd2cb405f9df" xlink:to="loc_us-gaap_StatementClassOfStockAxis_35f44dfe-b4c0-471e-9ee9-716ad097e79b" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_35f44dfe-b4c0-471e-9ee9-716ad097e79b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_35f44dfe-b4c0-471e-9ee9-716ad097e79b" xlink:to="loc_us-gaap_ClassOfStockDomain_35f44dfe-b4c0-471e-9ee9-716ad097e79b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_689099c2-4689-460f-a09a-351e051fa362" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_35f44dfe-b4c0-471e-9ee9-716ad097e79b" xlink:to="loc_us-gaap_ClassOfStockDomain_689099c2-4689-460f-a09a-351e051fa362" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_bd8ab121-145f-4dc5-a160-562fda8bdfbc" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_689099c2-4689-460f-a09a-351e051fa362" xlink:to="loc_us-gaap_CommonClassAMember_bd8ab121-145f-4dc5-a160-562fda8bdfbc" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_SaleOfStockMaximumAggregateConsiderationToBeReceivedOnTransaction_c08af9d0-133d-4e5c-8959-699b9c245e41" xlink:href="gree-20250331.xsd#gree_SaleOfStockMaximumAggregateConsiderationToBeReceivedOnTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_a5b677e4-3b13-4703-bd46-633bf72bb045" xlink:to="loc_gree_SaleOfStockMaximumAggregateConsiderationToBeReceivedOnTransaction_c08af9d0-133d-4e5c-8959-699b9c245e41" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_SaleOfStockTransactionPeriod_5440b341-4a20-49f6-bcb9-32f3ae4e4bf8" xlink:href="gree-20250331.xsd#gree_SaleOfStockTransactionPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_a5b677e4-3b13-4703-bd46-633bf72bb045" xlink:to="loc_gree_SaleOfStockTransactionPeriod_5440b341-4a20-49f6-bcb9-32f3ae4e4bf8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_36271590-84f0-439d-a549-cc11da2f8188" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_a5b677e4-3b13-4703-bd46-633bf72bb045" xlink:to="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_36271590-84f0-439d-a549-cc11da2f8188" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_0765b748-bd2e-4d7d-8978-0a899dfa5622" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockConsiderationReceivedOnTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_a5b677e4-3b13-4703-bd46-633bf72bb045" xlink:to="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_0765b748-bd2e-4d7d-8978-0a899dfa5622" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_SaleOfStockUnderwriterCompensationPercentageOfGrossStockSales_31cb4e79-4d23-4cfe-abf7-2400d8c42785" xlink:href="gree-20250331.xsd#gree_SaleOfStockUnderwriterCompensationPercentageOfGrossStockSales"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_a5b677e4-3b13-4703-bd46-633bf72bb045" xlink:to="loc_gree_SaleOfStockUnderwriterCompensationPercentageOfGrossStockSales_31cb4e79-4d23-4cfe-abf7-2400d8c42785" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightOutstanding_d0a5c8a7-ceef-4f6d-a8eb-0e51da7147dc" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_a5b677e4-3b13-4703-bd46-633bf72bb045" xlink:to="loc_us-gaap_ClassOfWarrantOrRightOutstanding_d0a5c8a7-ceef-4f6d-a8eb-0e51da7147dc" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockPricePerShare_0b57b50e-adf7-4098-aa0b-d8ddf9d06cfc" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockPricePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_a5b677e4-3b13-4703-bd46-633bf72bb045" xlink:to="loc_us-gaap_SaleOfStockPricePerShare_0b57b50e-adf7-4098-aa0b-d8ddf9d06cfc" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_7c6a081a-0277-48d2-bee4-75cc43a7d781" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_a5b677e4-3b13-4703-bd46-633bf72bb045" xlink:to="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_7c6a081a-0277-48d2-bee4-75cc43a7d781" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_bf54d979-acef-49d4-bb4b-52fb899039ab" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_a5b677e4-3b13-4703-bd46-633bf72bb045" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_bf54d979-acef-49d4-bb4b-52fb899039ab" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantsAndRightsOutstandingTerm_23296c53-abf8-425e-a4f3-ab9f8954627b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_WarrantsAndRightsOutstandingTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_a5b677e4-3b13-4703-bd46-633bf72bb045" xlink:to="loc_us-gaap_WarrantsAndRightsOutstandingTerm_23296c53-abf8-425e-a4f3-ab9f8954627b" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_50dfe652-7f61-431a-aeb4-75f50ec32dde" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_a5b677e4-3b13-4703-bd46-633bf72bb045" xlink:to="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_50dfe652-7f61-431a-aeb4-75f50ec32dde" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued_e77776f4-3d44-44aa-9b6a-4adecb3dce0f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_a5b677e4-3b13-4703-bd46-633bf72bb045" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued_e77776f4-3d44-44aa-9b6a-4adecb3dce0f" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_ClassOfWarrantOrRightIssuedInThePeriod_2f64ab42-1fef-464b-af3b-c06e9904b1f9" xlink:href="gree-20250331.xsd#gree_ClassOfWarrantOrRightIssuedInThePeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_a5b677e4-3b13-4703-bd46-633bf72bb045" xlink:to="loc_gree_ClassOfWarrantOrRightIssuedInThePeriod_2f64ab42-1fef-464b-af3b-c06e9904b1f9" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_StockIssuedDuringPeriodValueDebtModificationAmendmentFee_d6f65719-4c4f-4d06-8edf-cbd71ae28486" xlink:href="gree-20250331.xsd#gree_StockIssuedDuringPeriodValueDebtModificationAmendmentFee"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_a5b677e4-3b13-4703-bd46-633bf72bb045" xlink:to="loc_gree_StockIssuedDuringPeriodValueDebtModificationAmendmentFee_d6f65719-4c4f-4d06-8edf-cbd71ae28486" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRepurchasedFaceAmount_80c79ee1-e57f-447e-b089-db323a5ed964" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentRepurchasedFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_a5b677e4-3b13-4703-bd46-633bf72bb045" xlink:to="loc_us-gaap_DebtInstrumentRepurchasedFaceAmount_80c79ee1-e57f-447e-b089-db323a5ed964" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LettersOfCreditOutstandingAmount_49de9646-e1b2-4fea-aac6-93607e6fa0ac" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LettersOfCreditOutstandingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_a5b677e4-3b13-4703-bd46-633bf72bb045" xlink:to="loc_us-gaap_LettersOfCreditOutstandingAmount_49de9646-e1b2-4fea-aac6-93607e6fa0ac" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_0cd7c120-756f-4a2b-bfa1-d30051773f77" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_a5b677e4-3b13-4703-bd46-633bf72bb045" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_0cd7c120-756f-4a2b-bfa1-d30051773f77" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_TotalCumulativeSharesMaximumPercentageAllowedForIssue_7a48689b-1969-4e9e-a76c-b3e4f3449999" xlink:href="gree-20250331.xsd#gree_TotalCumulativeSharesMaximumPercentageAllowedForIssue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_a5b677e4-3b13-4703-bd46-633bf72bb045" xlink:to="loc_gree_TotalCumulativeSharesMaximumPercentageAllowedForIssue_7a48689b-1969-4e9e-a76c-b3e4f3449999" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_97ee248c-677b-469b-a283-662a14e1b692" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_a5b677e4-3b13-4703-bd46-633bf72bb045" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_97ee248c-677b-469b-a283-662a14e1b692" xlink:type="arc" order="18"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://greenidgellc.com/role/STOCKHOLDERSDEFICITWarrantsDetails" xlink:type="simple" xlink:href="gree-20250331.xsd#STOCKHOLDERSDEFICITWarrantsDetails"/>
  <link:definitionLink xlink:role="http://greenidgellc.com/role/STOCKHOLDERSDEFICITWarrantsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightLineItems_4a300277-b3e0-4c45-8761-281a2dbe5090" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightTable_e6763bba-6973-4d39-a698-183fb7912782" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_4a300277-b3e0-4c45-8761-281a2dbe5090" xlink:to="loc_us-gaap_ClassOfWarrantOrRightTable_e6763bba-6973-4d39-a698-183fb7912782" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_1895c6ce-f41a-4f59-9ea3-1e41ecafcc5e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfWarrantOrRightTable_e6763bba-6973-4d39-a698-183fb7912782" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_1895c6ce-f41a-4f59-9ea3-1e41ecafcc5e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_1895c6ce-f41a-4f59-9ea3-1e41ecafcc5e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_1895c6ce-f41a-4f59-9ea3-1e41ecafcc5e" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_1895c6ce-f41a-4f59-9ea3-1e41ecafcc5e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_9a07a85d-2418-4d6a-8bc2-1eec6e989887" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_1895c6ce-f41a-4f59-9ea3-1e41ecafcc5e" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_9a07a85d-2418-4d6a-8bc2-1eec6e989887" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_February2024WarrantsMember_6d2c2f53-5a23-4079-8acb-0ccf5cb8158d" xlink:href="gree-20250331.xsd#gree_February2024WarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_9a07a85d-2418-4d6a-8bc2-1eec6e989887" xlink:to="loc_gree_February2024WarrantsMember_6d2c2f53-5a23-4079-8acb-0ccf5cb8158d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightOutstanding_e3fb4a44-0acd-4678-bc19-3abc4164c780" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_4a300277-b3e0-4c45-8761-281a2dbe5090" xlink:to="loc_us-gaap_ClassOfWarrantOrRightOutstanding_e3fb4a44-0acd-4678-bc19-3abc4164c780" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_ClassOfWarrantOrRightExercisable_9d04c460-fafa-4986-904c-ebe4f936d531" xlink:href="gree-20250331.xsd#gree_ClassOfWarrantOrRightExercisable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_4a300277-b3e0-4c45-8761-281a2dbe5090" xlink:to="loc_gree_ClassOfWarrantOrRightExercisable_9d04c460-fafa-4986-904c-ebe4f936d531" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_2a9875ff-d91a-457e-a644-a7d2041524dc" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_4a300277-b3e0-4c45-8761-281a2dbe5090" xlink:to="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_2a9875ff-d91a-457e-a644-a7d2041524dc" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://greenidgellc.com/role/COMMITMENTSANDCONTINGENCIESDetails" xlink:type="simple" xlink:href="gree-20250331.xsd#COMMITMENTSANDCONTINGENCIESDetails"/>
  <link:definitionLink xlink:role="http://greenidgellc.com/role/COMMITMENTSANDCONTINGENCIESDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProductLiabilityContingencyLineItems_ee5102ae-650a-4b50-a918-94edf7859595" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProductLiabilityContingencyLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProductLiabilityContingencyTable_b5e27187-98e7-494d-baa5-2a6e6753f920" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProductLiabilityContingencyTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ProductLiabilityContingencyLineItems_ee5102ae-650a-4b50-a918-94edf7859595" xlink:to="loc_us-gaap_ProductLiabilityContingencyTable_b5e27187-98e7-494d-baa5-2a6e6753f920" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_ed17ed54-05aa-4f29-a542-6d0acc276020" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ProductLiabilityContingencyTable_b5e27187-98e7-494d-baa5-2a6e6753f920" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_ed17ed54-05aa-4f29-a542-6d0acc276020" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ed17ed54-05aa-4f29-a542-6d0acc276020_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_ed17ed54-05aa-4f29-a542-6d0acc276020" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ed17ed54-05aa-4f29-a542-6d0acc276020_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_217da3fd-a564-4ec7-96a7-eaea3757f96f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_ed17ed54-05aa-4f29-a542-6d0acc276020" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_217da3fd-a564-4ec7-96a7-eaea3757f96f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_CoalAshImpoundmentMember_221f87eb-e86d-4468-9110-6a9949006dde" xlink:href="gree-20250331.xsd#gree_CoalAshImpoundmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_217da3fd-a564-4ec7-96a7-eaea3757f96f" xlink:to="loc_gree_CoalAshImpoundmentMember_221f87eb-e86d-4468-9110-6a9949006dde" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccrualForEnvironmentalLossContingencies_cdd11ac6-53cb-42f8-a6d9-b195895ba23a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccrualForEnvironmentalLossContingencies"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ProductLiabilityContingencyLineItems_ee5102ae-650a-4b50-a918-94edf7859595" xlink:to="loc_us-gaap_AccrualForEnvironmentalLossContingencies_cdd11ac6-53cb-42f8-a6d9-b195895ba23a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_EnvironmentalLossContingenciesRemediationPeriod_d9407555-9c97-4147-a9b8-a7a0d752247a" xlink:href="gree-20250331.xsd#gree_EnvironmentalLossContingenciesRemediationPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ProductLiabilityContingencyLineItems_ee5102ae-650a-4b50-a918-94edf7859595" xlink:to="loc_gree_EnvironmentalLossContingenciesRemediationPeriod_d9407555-9c97-4147-a9b8-a7a0d752247a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_EnvironmentalTrustLiability_0bf44b93-b8f6-4394-825b-03dae2eb6792" xlink:href="gree-20250331.xsd#gree_EnvironmentalTrustLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ProductLiabilityContingencyLineItems_ee5102ae-650a-4b50-a918-94edf7859595" xlink:to="loc_gree_EnvironmentalTrustLiability_0bf44b93-b8f6-4394-825b-03dae2eb6792" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrentPeriod_ef18002e-c266-445e-a114-eb8816069bc8" xlink:href="gree-20250331.xsd#gree_AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrentPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ProductLiabilityContingencyLineItems_ee5102ae-650a-4b50-a918-94edf7859595" xlink:to="loc_gree_AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrentPeriod_ef18002e-c266-445e-a114-eb8816069bc8" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrentAnnualInflationRate_dfe3b91d-b2b3-47f7-bbe8-1dfc60082a51" xlink:href="gree-20250331.xsd#gree_AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrentAnnualInflationRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ProductLiabilityContingencyLineItems_ee5102ae-650a-4b50-a918-94edf7859595" xlink:to="loc_gree_AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrentAnnualInflationRate_dfe3b91d-b2b3-47f7-bbe8-1dfc60082a51" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsHeldInTrustNoncurrent_9bc90824-6458-474a-a4ce-2f912be9fe48" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsHeldInTrustNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ProductLiabilityContingencyLineItems_ee5102ae-650a-4b50-a918-94edf7859595" xlink:to="loc_us-gaap_AssetsHeldInTrustNoncurrent_9bc90824-6458-474a-a4ce-2f912be9fe48" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_LongTermPurchaseCommitmentMinimumEnergyVolumeRequiredPerDay_db8d8b0e-313b-460e-a1fd-f8781f5bd04a" xlink:href="gree-20250331.xsd#gree_LongTermPurchaseCommitmentMinimumEnergyVolumeRequiredPerDay"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ProductLiabilityContingencyLineItems_ee5102ae-650a-4b50-a918-94edf7859595" xlink:to="loc_gree_LongTermPurchaseCommitmentMinimumEnergyVolumeRequiredPerDay_db8d8b0e-313b-460e-a1fd-f8781f5bd04a" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_ContractualObligationPerMonthAmount_b302df7a-5454-47d2-8995-347f3c791e11" xlink:href="gree-20250331.xsd#gree_ContractualObligationPerMonthAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ProductLiabilityContingencyLineItems_ee5102ae-650a-4b50-a918-94edf7859595" xlink:to="loc_gree_ContractualObligationPerMonthAmount_b302df7a-5454-47d2-8995-347f3c791e11" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_LongTermPurchaseCommitmentTerminationNoticePeriod_9221a422-8500-4811-83f8-357315bd8123" xlink:href="gree-20250331.xsd#gree_LongTermPurchaseCommitmentTerminationNoticePeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ProductLiabilityContingencyLineItems_ee5102ae-650a-4b50-a918-94edf7859595" xlink:to="loc_gree_LongTermPurchaseCommitmentTerminationNoticePeriod_9221a422-8500-4811-83f8-357315bd8123" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermPurchaseCommitmentPeriod_41d45c2e-e609-4372-88be-4d27f63b1b6f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermPurchaseCommitmentPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ProductLiabilityContingencyLineItems_ee5102ae-650a-4b50-a918-94edf7859595" xlink:to="loc_us-gaap_LongtermPurchaseCommitmentPeriod_41d45c2e-e609-4372-88be-4d27f63b1b6f" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_MiningCapacityLeaseTerm_08a4093c-574a-4417-b571-b08ca365f18b" xlink:href="gree-20250331.xsd#gree_MiningCapacityLeaseTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ProductLiabilityContingencyLineItems_ee5102ae-650a-4b50-a918-94edf7859595" xlink:to="loc_gree_MiningCapacityLeaseTerm_08a4093c-574a-4417-b571-b08ca365f18b" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_FacilitiesOwnedAndOperatedPowerToBeDeployed_bf3eeb09-c6c0-41e8-bfa8-9b712660d9de" xlink:href="gree-20250331.xsd#gree_FacilitiesOwnedAndOperatedPowerToBeDeployed"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ProductLiabilityContingencyLineItems_ee5102ae-650a-4b50-a918-94edf7859595" xlink:to="loc_gree_FacilitiesOwnedAndOperatedPowerToBeDeployed_bf3eeb09-c6c0-41e8-bfa8-9b712660d9de" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableLeaseCost_e20c9a1d-7fe5-4629-b5e7-d5db055a5c8c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_VariableLeaseCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ProductLiabilityContingencyLineItems_ee5102ae-650a-4b50-a918-94edf7859595" xlink:to="loc_us-gaap_VariableLeaseCost_e20c9a1d-7fe5-4629-b5e7-d5db055a5c8c" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseTermOfContract_c02d82b7-9cde-415f-9708-4853a215b64c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LesseeOperatingLeaseTermOfContract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ProductLiabilityContingencyLineItems_ee5102ae-650a-4b50-a918-94edf7859595" xlink:to="loc_us-gaap_LesseeOperatingLeaseTermOfContract_c02d82b7-9cde-415f-9708-4853a215b64c" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_e5573cb5-8878-4753-8f5a-e3b9d23365c5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ProductLiabilityContingencyLineItems_ee5102ae-650a-4b50-a918-94edf7859595" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_e5573cb5-8878-4753-8f5a-e3b9d23365c5" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiability_fc77c151-8814-4ffd-b184-8efcf83fd6af" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ProductLiabilityContingencyLineItems_ee5102ae-650a-4b50-a918-94edf7859595" xlink:to="loc_us-gaap_OperatingLeaseLiability_fc77c151-8814-4ffd-b184-8efcf83fd6af" xlink:type="arc" order="15"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://greenidgellc.com/role/CONCENTRATIONSDetails" xlink:type="simple" xlink:href="gree-20250331.xsd#CONCENTRATIONSDetails"/>
  <link:definitionLink xlink:role="http://greenidgellc.com/role/CONCENTRATIONSDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskLineItems_b379ac4f-bbc6-4958-9cc4-9622a521af62" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ConcentrationRiskLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTable_60ba0341-06a7-45f4-8a39-e0f9c30925b1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ConcentrationRiskTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_b379ac4f-bbc6-4958-9cc4-9622a521af62" xlink:to="loc_us-gaap_ConcentrationRiskTable_60ba0341-06a7-45f4-8a39-e0f9c30925b1" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_c1510a3f-352e-45b1-b373-86b0c9e4645f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConcentrationRiskTable_60ba0341-06a7-45f4-8a39-e0f9c30925b1" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_c1510a3f-352e-45b1-b373-86b0c9e4645f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_c1510a3f-352e-45b1-b373-86b0c9e4645f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_c1510a3f-352e-45b1-b373-86b0c9e4645f" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_c1510a3f-352e-45b1-b373-86b0c9e4645f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_090fecec-43bc-4073-8741-a0939f8b1951" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_c1510a3f-352e-45b1-b373-86b0c9e4645f" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_090fecec-43bc-4073-8741-a0939f8b1951" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesRevenueNetMember_41654b4f-18fe-4f9e-b8cf-468fd8c45972" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SalesRevenueNetMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_090fecec-43bc-4073-8741-a0939f8b1951" xlink:to="loc_us-gaap_SalesRevenueNetMember_41654b4f-18fe-4f9e-b8cf-468fd8c45972" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsTotalMember_7c43541e-5139-4c1f-b94c-11b27653f2cd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CostOfGoodsTotalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_090fecec-43bc-4073-8741-a0939f8b1951" xlink:to="loc_us-gaap_CostOfGoodsTotalMember_7c43541e-5139-4c1f-b94c-11b27653f2cd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_3524520c-d677-4d4f-a5c4-5f2127770483" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ConcentrationRiskByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConcentrationRiskTable_60ba0341-06a7-45f4-8a39-e0f9c30925b1" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_3524520c-d677-4d4f-a5c4-5f2127770483" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_3524520c-d677-4d4f-a5c4-5f2127770483_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_3524520c-d677-4d4f-a5c4-5f2127770483" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_3524520c-d677-4d4f-a5c4-5f2127770483_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_6b2ba7d1-9526-41ca-a517-10df744c65c0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_3524520c-d677-4d4f-a5c4-5f2127770483" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_6b2ba7d1-9526-41ca-a517-10df744c65c0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerConcentrationRiskMember_d60a1f98-359c-4600-b377-a25e45109bc7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CustomerConcentrationRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_6b2ba7d1-9526-41ca-a517-10df744c65c0" xlink:to="loc_us-gaap_CustomerConcentrationRiskMember_d60a1f98-359c-4600-b377-a25e45109bc7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SupplierConcentrationRiskMember_e53271ab-4077-402f-b459-cef3da1982f8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SupplierConcentrationRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_6b2ba7d1-9526-41ca-a517-10df744c65c0" xlink:to="loc_us-gaap_SupplierConcentrationRiskMember_e53271ab-4077-402f-b459-cef3da1982f8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MajorCustomersAxis_027b1a84-e253-4a72-beee-98f86ef55b52" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_MajorCustomersAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConcentrationRiskTable_60ba0341-06a7-45f4-8a39-e0f9c30925b1" xlink:to="loc_srt_MajorCustomersAxis_027b1a84-e253-4a72-beee-98f86ef55b52" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_027b1a84-e253-4a72-beee-98f86ef55b52_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_MajorCustomersAxis_027b1a84-e253-4a72-beee-98f86ef55b52" xlink:to="loc_srt_NameOfMajorCustomerDomain_027b1a84-e253-4a72-beee-98f86ef55b52_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_e95b5fa0-a879-41b7-b7b7-a12c7dff1fcb" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_MajorCustomersAxis_027b1a84-e253-4a72-beee-98f86ef55b52" xlink:to="loc_srt_NameOfMajorCustomerDomain_e95b5fa0-a879-41b7-b7b7-a12c7dff1fcb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_DataCenterCustomerMember_6e50be78-443c-42fa-b7a8-7fc2d0049fa7" xlink:href="gree-20250331.xsd#gree_DataCenterCustomerMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_e95b5fa0-a879-41b7-b7b7-a12c7dff1fcb" xlink:to="loc_gree_DataCenterCustomerMember_6e50be78-443c-42fa-b7a8-7fc2d0049fa7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_OperatorCustomerMember_85a8006f-aa0c-4e19-976d-0540fd295527" xlink:href="gree-20250331.xsd#gree_OperatorCustomerMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_e95b5fa0-a879-41b7-b7b7-a12c7dff1fcb" xlink:to="loc_gree_OperatorCustomerMember_85a8006f-aa0c-4e19-976d-0540fd295527" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_OneMajorCustomerMember_cc5dca87-07f4-4d67-9f29-fc170404866d" xlink:href="gree-20250331.xsd#gree_OneMajorCustomerMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_e95b5fa0-a879-41b7-b7b7-a12c7dff1fcb" xlink:to="loc_gree_OneMajorCustomerMember_cc5dca87-07f4-4d67-9f29-fc170404866d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_OneMajorVendorMember_0bae73b4-e4da-4dc3-af75-f775a9b5a709" xlink:href="gree-20250331.xsd#gree_OneMajorVendorMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_e95b5fa0-a879-41b7-b7b7-a12c7dff1fcb" xlink:to="loc_gree_OneMajorVendorMember_0bae73b4-e4da-4dc3-af75-f775a9b5a709" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_6c47e21f-77d0-44e3-a024-e386afdfac84" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConcentrationRiskTable_60ba0341-06a7-45f4-8a39-e0f9c30925b1" xlink:to="loc_srt_ProductOrServiceAxis_6c47e21f-77d0-44e3-a024-e386afdfac84" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_6c47e21f-77d0-44e3-a024-e386afdfac84_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_6c47e21f-77d0-44e3-a024-e386afdfac84" xlink:to="loc_srt_ProductsAndServicesDomain_6c47e21f-77d0-44e3-a024-e386afdfac84_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_69da3246-e231-4ec6-8306-eb4e2e98543c" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_6c47e21f-77d0-44e3-a024-e386afdfac84" xlink:to="loc_srt_ProductsAndServicesDomain_69da3246-e231-4ec6-8306-eb4e2e98543c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_CryptocurrencyMiningMember_c3b6498d-60f3-477a-9938-0edcf3105989" xlink:href="gree-20250331.xsd#gree_CryptocurrencyMiningMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_69da3246-e231-4ec6-8306-eb4e2e98543c" xlink:to="loc_gree_CryptocurrencyMiningMember_c3b6498d-60f3-477a-9938-0edcf3105989" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis_84cd75c2-75f9-4107-b9af-3c6a54badb02" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConcentrationRiskTable_60ba0341-06a7-45f4-8a39-e0f9c30925b1" xlink:to="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis_84cd75c2-75f9-4107-b9af-3c6a54badb02" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain_84cd75c2-75f9-4107-b9af-3c6a54badb02_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis_84cd75c2-75f9-4107-b9af-3c6a54badb02" xlink:to="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain_84cd75c2-75f9-4107-b9af-3c6a54badb02_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain_a0246031-0c1e-4d8f-a34e-84902b1e8dae" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis_84cd75c2-75f9-4107-b9af-3c6a54badb02" xlink:to="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain_a0246031-0c1e-4d8f-a34e-84902b1e8dae" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_OneMajorProviderOfHostingServicesMember_523db28a-6560-4b0c-b7a6-8f2707fafe6b" xlink:href="gree-20250331.xsd#gree_OneMajorProviderOfHostingServicesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain_a0246031-0c1e-4d8f-a34e-84902b1e8dae" xlink:to="loc_gree_OneMajorProviderOfHostingServicesMember_523db28a-6560-4b0c-b7a6-8f2707fafe6b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_17e9b389-1d57-4bf6-bb1b-fb1c882e6775" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ConcentrationRiskPercentage1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_b379ac4f-bbc6-4958-9cc4-9622a521af62" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_17e9b389-1d57-4bf6-bb1b-fb1c882e6775" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_HostingAgreementTerminationNoticePeriod_605ec3c0-0482-4a55-bbea-068d899b2e0b" xlink:href="gree-20250331.xsd#gree_HostingAgreementTerminationNoticePeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_b379ac4f-bbc6-4958-9cc4-9622a521af62" xlink:to="loc_gree_HostingAgreementTerminationNoticePeriod_605ec3c0-0482-4a55-bbea-068d899b2e0b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_RevenueFromContractWithCustomerTerm_3e302994-c113-4606-a27b-da811231ab7a" xlink:href="gree-20250331.xsd#gree_RevenueFromContractWithCustomerTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_b379ac4f-bbc6-4958-9cc4-9622a521af62" xlink:to="loc_gree_RevenueFromContractWithCustomerTerm_3e302994-c113-4606-a27b-da811231ab7a" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://greenidgellc.com/role/RELATEDPARTYTRANSACTIONSDetails" xlink:type="simple" xlink:href="gree-20250331.xsd#RELATEDPARTYTRANSACTIONSDetails"/>
  <link:definitionLink xlink:role="http://greenidgellc.com/role/RELATEDPARTYTRANSACTIONSDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems_de5ea61b-5a2e-4e08-8c56-3fd10a8b6113" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_8bd506cb-091b-4426-a807-4507a6bc2e97" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_de5ea61b-5a2e-4e08-8c56-3fd10a8b6113" xlink:to="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_8bd506cb-091b-4426-a807-4507a6bc2e97" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipAxis_9e5e2172-19cb-46d7-9731-3048093b0377" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_OwnershipAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_8bd506cb-091b-4426-a807-4507a6bc2e97" xlink:to="loc_srt_OwnershipAxis_9e5e2172-19cb-46d7-9731-3048093b0377" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipDomain_9e5e2172-19cb-46d7-9731-3048093b0377_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_OwnershipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_OwnershipAxis_9e5e2172-19cb-46d7-9731-3048093b0377" xlink:to="loc_srt_OwnershipDomain_9e5e2172-19cb-46d7-9731-3048093b0377_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipDomain_b773b205-bb0b-4a9c-bd8e-bb1b5522ea4c" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_OwnershipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_OwnershipAxis_9e5e2172-19cb-46d7-9731-3048093b0377" xlink:to="loc_srt_OwnershipDomain_b773b205-bb0b-4a9c-bd8e-bb1b5522ea4c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_GreenidgeGenerationHoldingsIncMember_66d80635-c8ba-46d8-90a9-65885e027b0f" xlink:href="gree-20250331.xsd#gree_GreenidgeGenerationHoldingsIncMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_OwnershipDomain_b773b205-bb0b-4a9c-bd8e-bb1b5522ea4c" xlink:to="loc_gree_GreenidgeGenerationHoldingsIncMember_66d80635-c8ba-46d8-90a9-65885e027b0f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_d96fc60d-ce98-4f44-a5e2-d70a7da5444f" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_CounterpartyNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_8bd506cb-091b-4426-a807-4507a6bc2e97" xlink:to="loc_srt_CounterpartyNameAxis_d96fc60d-ce98-4f44-a5e2-d70a7da5444f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_d96fc60d-ce98-4f44-a5e2-d70a7da5444f_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CounterpartyNameAxis_d96fc60d-ce98-4f44-a5e2-d70a7da5444f" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_d96fc60d-ce98-4f44-a5e2-d70a7da5444f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_88696979-4b07-43d4-a302-fb94e16965ab" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CounterpartyNameAxis_d96fc60d-ce98-4f44-a5e2-d70a7da5444f" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_88696979-4b07-43d4-a302-fb94e16965ab" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_NYSDECMember_6832f3d5-d6df-40dd-8c80-0a01309a25c1" xlink:href="gree-20250331.xsd#gree_NYSDECMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_88696979-4b07-43d4-a302-fb94e16965ab" xlink:to="loc_gree_NYSDECMember_6832f3d5-d6df-40dd-8c80-0a01309a25c1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_EmpirePipelineIncorporatedMember_e5b6b819-e6ee-4932-afb3-9ecec363bd3a" xlink:href="gree-20250331.xsd#gree_EmpirePipelineIncorporatedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_88696979-4b07-43d4-a302-fb94e16965ab" xlink:to="loc_gree_EmpirePipelineIncorporatedMember_e5b6b819-e6ee-4932-afb3-9ecec363bd3a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_760ac23f-9493-48ab-af45-c036d55fc1d4" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_8bd506cb-091b-4426-a807-4507a6bc2e97" xlink:to="loc_dei_LegalEntityAxis_760ac23f-9493-48ab-af45-c036d55fc1d4" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_760ac23f-9493-48ab-af45-c036d55fc1d4_default" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_760ac23f-9493-48ab-af45-c036d55fc1d4" xlink:to="loc_dei_EntityDomain_760ac23f-9493-48ab-af45-c036d55fc1d4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_97590058-f5e2-4eb4-8eaa-4523efc5a65a" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_760ac23f-9493-48ab-af45-c036d55fc1d4" xlink:to="loc_dei_EntityDomain_97590058-f5e2-4eb4-8eaa-4523efc5a65a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_AtlasHoldingsLLCAndAffiliatesMember_393ba483-8437-4388-b79e-84a579328e38" xlink:href="gree-20250331.xsd#gree_AtlasHoldingsLLCAndAffiliatesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_97590058-f5e2-4eb4-8eaa-4523efc5a65a" xlink:to="loc_gree_AtlasHoldingsLLCAndAffiliatesMember_393ba483-8437-4388-b79e-84a579328e38" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_AtlasHoldingsLLCMember_66ab67ce-33ad-4811-9371-b3554343e093" xlink:href="gree-20250331.xsd#gree_AtlasHoldingsLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_97590058-f5e2-4eb4-8eaa-4523efc5a65a" xlink:to="loc_gree_AtlasHoldingsLLCMember_66ab67ce-33ad-4811-9371-b3554343e093" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_6f984fc5-bc5d-4f41-84e5-c1defd2b623a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_8bd506cb-091b-4426-a807-4507a6bc2e97" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_6f984fc5-bc5d-4f41-84e5-c1defd2b623a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_6f984fc5-bc5d-4f41-84e5-c1defd2b623a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_6f984fc5-bc5d-4f41-84e5-c1defd2b623a" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_6f984fc5-bc5d-4f41-84e5-c1defd2b623a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_35ee108a-ee7b-43e3-af4f-a2e3cdd6ee56" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_6f984fc5-bc5d-4f41-84e5-c1defd2b623a" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_35ee108a-ee7b-43e3-af4f-a2e3cdd6ee56" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LetterOfCreditMember_56ab6486-efd9-4ed9-aecb-ac2f7d5febb3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LetterOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_35ee108a-ee7b-43e3-af4f-a2e3cdd6ee56" xlink:to="loc_us-gaap_LetterOfCreditMember_56ab6486-efd9-4ed9-aecb-ac2f7d5febb3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_fec91743-4499-4faf-9a72-49cd68f49d51" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_8bd506cb-091b-4426-a807-4507a6bc2e97" xlink:to="loc_us-gaap_StatementClassOfStockAxis_fec91743-4499-4faf-9a72-49cd68f49d51" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_fec91743-4499-4faf-9a72-49cd68f49d51_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_fec91743-4499-4faf-9a72-49cd68f49d51" xlink:to="loc_us-gaap_ClassOfStockDomain_fec91743-4499-4faf-9a72-49cd68f49d51_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_b18f226a-4659-4276-948a-31fa95b63684" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_fec91743-4499-4faf-9a72-49cd68f49d51" xlink:to="loc_us-gaap_ClassOfStockDomain_b18f226a-4659-4276-948a-31fa95b63684" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_39fb1051-51dd-4582-9b64-6dceace81380" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_b18f226a-4659-4276-948a-31fa95b63684" xlink:to="loc_us-gaap_CommonClassAMember_39fb1051-51dd-4582-9b64-6dceace81380" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiarySaleOfStockAxis_877ad3f1-db0a-4e4f-a4bc-f33a5fc0da78" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsidiarySaleOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_8bd506cb-091b-4426-a807-4507a6bc2e97" xlink:to="loc_us-gaap_SubsidiarySaleOfStockAxis_877ad3f1-db0a-4e4f-a4bc-f33a5fc0da78" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_877ad3f1-db0a-4e4f-a4bc-f33a5fc0da78_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_877ad3f1-db0a-4e4f-a4bc-f33a5fc0da78" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_877ad3f1-db0a-4e4f-a4bc-f33a5fc0da78_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_e969c9ce-b92e-42f0-ab28-a2057a0ef594" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_877ad3f1-db0a-4e4f-a4bc-f33a5fc0da78" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_e969c9ce-b92e-42f0-ab28-a2057a0ef594" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_DebtExchangeAgreementsMember_e5a03b48-90ac-4587-8c4f-aaebe02dc853" xlink:href="gree-20250331.xsd#gree_DebtExchangeAgreementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_e969c9ce-b92e-42f0-ab28-a2057a0ef594" xlink:to="loc_gree_DebtExchangeAgreementsMember_e5a03b48-90ac-4587-8c4f-aaebe02dc853" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterestOwnershipPercentageByParent_d76f858b-645d-4289-9399-89ab779590c1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MinorityInterestOwnershipPercentageByParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_de5ea61b-5a2e-4e08-8c56-3fd10a8b6113" xlink:to="loc_us-gaap_MinorityInterestOwnershipPercentageByParent_d76f858b-645d-4289-9399-89ab779590c1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LettersOfCreditOutstandingAmount_591ac615-dde7-437b-a6c9-fe7336b09c4e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LettersOfCreditOutstandingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_de5ea61b-5a2e-4e08-8c56-3fd10a8b6113" xlink:to="loc_us-gaap_LettersOfCreditOutstandingAmount_591ac615-dde7-437b-a6c9-fe7336b09c4e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AreaOfLand_1ef0a5ba-4c89-4457-9d2e-63b540c9e0ca" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AreaOfLand"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_de5ea61b-5a2e-4e08-8c56-3fd10a8b6113" xlink:to="loc_us-gaap_AreaOfLand_1ef0a5ba-4c89-4457-9d2e-63b540c9e0ca" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AreaOfRealEstateProperty_cd4db712-0210-4407-9705-44d7c8813c18" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AreaOfRealEstateProperty"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_de5ea61b-5a2e-4e08-8c56-3fd10a8b6113" xlink:to="loc_us-gaap_AreaOfRealEstateProperty_cd4db712-0210-4407-9705-44d7c8813c18" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAdditions_635fb353-3f70-4be6-b542-ec544edaeb52" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentAdditions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_de5ea61b-5a2e-4e08-8c56-3fd10a8b6113" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAdditions_635fb353-3f70-4be6-b542-ec544edaeb52" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_FacilitiesOwnedOwnedAndOperatedAssociatedPowerInFacility_e2d2519c-cbb6-4c64-9418-b45caa31f5f1" xlink:href="gree-20250331.xsd#gree_FacilitiesOwnedOwnedAndOperatedAssociatedPowerInFacility"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_de5ea61b-5a2e-4e08-8c56-3fd10a8b6113" xlink:to="loc_gree_FacilitiesOwnedOwnedAndOperatedAssociatedPowerInFacility_e2d2519c-cbb6-4c64-9418-b45caa31f5f1" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_FacilitiesOwnedAndOperatedPowerDeployed_3a221e3a-4493-43b0-95ce-2d06ff5e6b52" xlink:href="gree-20250331.xsd#gree_FacilitiesOwnedAndOperatedPowerDeployed"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_de5ea61b-5a2e-4e08-8c56-3fd10a8b6113" xlink:to="loc_gree_FacilitiesOwnedAndOperatedPowerDeployed_3a221e3a-4493-43b0-95ce-2d06ff5e6b52" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_1d95fb38-606c-4b36-8981-7f86b742f1a3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_de5ea61b-5a2e-4e08-8c56-3fd10a8b6113" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_1d95fb38-606c-4b36-8981-7f86b742f1a3" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_TotalCumulativeSharesMaximumPercentageAllowedForIssue_8bc308ce-5424-4d69-b1b2-fac850f1dd68" xlink:href="gree-20250331.xsd#gree_TotalCumulativeSharesMaximumPercentageAllowedForIssue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_de5ea61b-5a2e-4e08-8c56-3fd10a8b6113" xlink:to="loc_gree_TotalCumulativeSharesMaximumPercentageAllowedForIssue_8bc308ce-5424-4d69-b1b2-fac850f1dd68" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseNonoperating_36dd18fc-68e0-40f9-9409-16a24494859a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InterestExpenseNonoperating"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_de5ea61b-5a2e-4e08-8c56-3fd10a8b6113" xlink:to="loc_us-gaap_InterestExpenseNonoperating_36dd18fc-68e0-40f9-9409-16a24494859a" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_9802f238-5c67-4719-b706-7d0832d6b4f3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_de5ea61b-5a2e-4e08-8c56-3fd10a8b6113" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_9802f238-5c67-4719-b706-7d0832d6b4f3" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_StockIssuedDuringPeriodValueDebtModificationAmendmentFee_7cbaa9ee-43d2-4525-a6ef-489e1eb71e70" xlink:href="gree-20250331.xsd#gree_StockIssuedDuringPeriodValueDebtModificationAmendmentFee"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_de5ea61b-5a2e-4e08-8c56-3fd10a8b6113" xlink:to="loc_gree_StockIssuedDuringPeriodValueDebtModificationAmendmentFee_7cbaa9ee-43d2-4525-a6ef-489e1eb71e70" xlink:type="arc" order="11"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://greenidgellc.com/role/SUPPLEMENTALBALANCESHEETANDCASHFLOWINFORMATIONCashFlowInformationDetails" xlink:type="simple" xlink:href="gree-20250331.xsd#SUPPLEMENTALBALANCESHEETANDCASHFLOWINFORMATIONCashFlowInformationDetails"/>
  <link:definitionLink xlink:role="http://greenidgellc.com/role/SUPPLEMENTALBALANCESHEETANDCASHFLOWINFORMATIONCashFlowInformationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsLineItems_2a947ce7-8252-48c7-a2f5-ca3232fcfec9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashAndCashEquivalentsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfCashAndCashEquivalentsTable_85efd399-7c5c-4490-97e1-ca5715091aed" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfCashAndCashEquivalentsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_CashAndCashEquivalentsLineItems_2a947ce7-8252-48c7-a2f5-ca3232fcfec9" xlink:to="loc_us-gaap_ScheduleOfCashAndCashEquivalentsTable_85efd399-7c5c-4490-97e1-ca5715091aed" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CumulativeEffectPeriodOfAdoptionAxis_30f45d66-9d77-4192-84d4-2180d7db1250" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_CumulativeEffectPeriodOfAdoptionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfCashAndCashEquivalentsTable_85efd399-7c5c-4490-97e1-ca5715091aed" xlink:to="loc_srt_CumulativeEffectPeriodOfAdoptionAxis_30f45d66-9d77-4192-84d4-2180d7db1250" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CumulativeEffectPeriodOfAdoptionDomain_30f45d66-9d77-4192-84d4-2180d7db1250_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_CumulativeEffectPeriodOfAdoptionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CumulativeEffectPeriodOfAdoptionAxis_30f45d66-9d77-4192-84d4-2180d7db1250" xlink:to="loc_srt_CumulativeEffectPeriodOfAdoptionDomain_30f45d66-9d77-4192-84d4-2180d7db1250_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CumulativeEffectPeriodOfAdoptionDomain_d3ae772e-13c9-4d13-8048-b08a5285fc60" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_CumulativeEffectPeriodOfAdoptionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CumulativeEffectPeriodOfAdoptionAxis_30f45d66-9d77-4192-84d4-2180d7db1250" xlink:to="loc_srt_CumulativeEffectPeriodOfAdoptionDomain_d3ae772e-13c9-4d13-8048-b08a5285fc60" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember_a849ba6f-624f-411c-9118-a42d3c73b950" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CumulativeEffectPeriodOfAdoptionDomain_d3ae772e-13c9-4d13-8048-b08a5285fc60" xlink:to="loc_srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember_a849ba6f-624f-411c-9118-a42d3c73b950" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_d51edb31-716d-461c-9cd2-41279fa53fb9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CashAndCashEquivalentsLineItems_2a947ce7-8252-48c7-a2f5-ca3232fcfec9" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_d51edb31-716d-461c-9cd2-41279fa53fb9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalExpendituresIncurredButNotYetPaid_c24cbed8-2b88-46d2-a55a-5743422fca66" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CapitalExpendituresIncurredButNotYetPaid"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CashAndCashEquivalentsLineItems_2a947ce7-8252-48c7-a2f5-ca3232fcfec9" xlink:to="loc_us-gaap_CapitalExpendituresIncurredButNotYetPaid_c24cbed8-2b88-46d2-a55a-5743422fca66" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_CommonStockIssuedInExchangeForReductionInDebt_4a8519ae-ae15-4df2-9ea2-70ce4644f3a3" xlink:href="gree-20250331.xsd#gree_CommonStockIssuedInExchangeForReductionInDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CashAndCashEquivalentsLineItems_2a947ce7-8252-48c7-a2f5-ca3232fcfec9" xlink:to="loc_gree_CommonStockIssuedInExchangeForReductionInDebt_4a8519ae-ae15-4df2-9ea2-70ce4644f3a3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_ReceivableFromSaleOfPropertyPlantAndEquipment_63ab3017-d6db-42b0-b5ac-35a0a5d0adf1" xlink:href="gree-20250331.xsd#gree_ReceivableFromSaleOfPropertyPlantAndEquipment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CashAndCashEquivalentsLineItems_2a947ce7-8252-48c7-a2f5-ca3232fcfec9" xlink:to="loc_gree_ReceivableFromSaleOfPropertyPlantAndEquipment_63ab3017-d6db-42b0-b5ac-35a0a5d0adf1" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestPaidNet_75b8c2ba-8cea-4698-a5f0-0d3e0d223d01" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InterestPaidNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CashAndCashEquivalentsLineItems_2a947ce7-8252-48c7-a2f5-ca3232fcfec9" xlink:to="loc_us-gaap_InterestPaidNet_75b8c2ba-8cea-4698-a5f0-0d3e0d223d01" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://greenidgellc.com/role/FAIRVALUEFairValueHierarchyDetails" xlink:type="simple" xlink:href="gree-20250331.xsd#FAIRVALUEFairValueHierarchyDetails"/>
  <link:definitionLink xlink:role="http://greenidgellc.com/role/FAIRVALUEFairValueHierarchyDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_c605a022-7255-4969-b9be-4e3c8984bf34" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_e442c40b-9d5b-4843-82fd-fe02f2899b68" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_c605a022-7255-4969-b9be-4e3c8984bf34" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_e442c40b-9d5b-4843-82fd-fe02f2899b68" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_3150f471-666a-4c3e-ad1d-221470fa5657" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_e442c40b-9d5b-4843-82fd-fe02f2899b68" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_3150f471-666a-4c3e-ad1d-221470fa5657" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_3150f471-666a-4c3e-ad1d-221470fa5657_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_3150f471-666a-4c3e-ad1d-221470fa5657" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_3150f471-666a-4c3e-ad1d-221470fa5657_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_0cd2e14f-f3dd-4ce0-9620-3b33c8f3e6a6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_3150f471-666a-4c3e-ad1d-221470fa5657" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_0cd2e14f-f3dd-4ce0-9620-3b33c8f3e6a6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_58a8201a-5669-4c79-9570-9679e23cf92e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueInputsLevel1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_0cd2e14f-f3dd-4ce0-9620-3b33c8f3e6a6" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_58a8201a-5669-4c79-9570-9679e23cf92e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_7e52c6a0-d214-40b3-bc68-ec70136bb76f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueInputsLevel2Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_0cd2e14f-f3dd-4ce0-9620-3b33c8f3e6a6" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_7e52c6a0-d214-40b3-bc68-ec70136bb76f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_fb50d994-bc15-4ebc-bca8-a66433b25d6c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueInputsLevel3Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_0cd2e14f-f3dd-4ce0-9620-3b33c8f3e6a6" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_fb50d994-bc15-4ebc-bca8-a66433b25d6c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosureAbstract_1173dd59-7162-4862-b15b-b307c0538222" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsFairValueDisclosureAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_c605a022-7255-4969-b9be-4e3c8984bf34" xlink:to="loc_us-gaap_AssetsFairValueDisclosureAbstract_1173dd59-7162-4862-b15b-b307c0538222" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CryptoAssetFairValue_f92aeaa3-a3f1-48a8-a548-85a40213d20c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CryptoAssetFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsFairValueDisclosureAbstract_1173dd59-7162-4862-b15b-b307c0538222" xlink:to="loc_us-gaap_CryptoAssetFairValue_f92aeaa3-a3f1-48a8-a548-85a40213d20c" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://greenidgellc.com/role/SEGMENTREPORTINGScheduleofSegmentReportingInformationbySegmentDetailsDetails" xlink:type="simple" xlink:href="gree-20250331.xsd#SEGMENTREPORTINGScheduleofSegmentReportingInformationbySegmentDetailsDetails"/>
  <link:definitionLink xlink:role="http://greenidgellc.com/role/SEGMENTREPORTINGScheduleofSegmentReportingInformationbySegmentDetailsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_218e8c7c-f5f6-44e5-ae06-6c63d2c7b007" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SegmentReportingInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_31b8a204-e2ca-4fdc-95ac-df01c6b6fba4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_218e8c7c-f5f6-44e5-ae06-6c63d2c7b007" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_31b8a204-e2ca-4fdc-95ac-df01c6b6fba4" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_0754bde8-b119-45a5-94b4-282ee241ebf7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_31b8a204-e2ca-4fdc-95ac-df01c6b6fba4" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_0754bde8-b119-45a5-94b4-282ee241ebf7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_0754bde8-b119-45a5-94b4-282ee241ebf7_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_0754bde8-b119-45a5-94b4-282ee241ebf7" xlink:to="loc_us-gaap_SegmentDomain_0754bde8-b119-45a5-94b4-282ee241ebf7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_3aceeb4e-0728-4bb4-b707-ea803d94542f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_0754bde8-b119-45a5-94b4-282ee241ebf7" xlink:to="loc_us-gaap_SegmentDomain_3aceeb4e-0728-4bb4-b707-ea803d94542f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_ReportableSegmentMember_1c434677-1087-4d33-ae51-b82573826180" xlink:href="gree-20250331.xsd#gree_ReportableSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_3aceeb4e-0728-4bb4-b707-ea803d94542f" xlink:to="loc_gree_ReportableSegmentMember_1c434677-1087-4d33-ae51-b82573826180" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_6a859989-7c64-4fc4-8aec-3772227d6d45" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_218e8c7c-f5f6-44e5-ae06-6c63d2c7b007" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_6a859989-7c64-4fc4-8aec-3772227d6d45" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FuelCosts_bf0765bd-e772-4c39-9977-f7e47b105a32" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FuelCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_218e8c7c-f5f6-44e5-ae06-6c63d2c7b007" xlink:to="loc_us-gaap_FuelCosts_bf0765bd-e772-4c39-9977-f7e47b105a32" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_ElectricityForMiningExpense_2b1ae47e-e421-472c-a70e-6d96fb38aca6" xlink:href="gree-20250331.xsd#gree_ElectricityForMiningExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_218e8c7c-f5f6-44e5-ae06-6c63d2c7b007" xlink:to="loc_gree_ElectricityForMiningExpense_2b1ae47e-e421-472c-a70e-6d96fb38aca6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_EmissionsExpense_7ea1e65f-287e-4ada-a1c4-ed73d4730364" xlink:href="gree-20250331.xsd#gree_EmissionsExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_218e8c7c-f5f6-44e5-ae06-6c63d2c7b007" xlink:to="loc_gree_EmissionsExpense_7ea1e65f-287e-4ada-a1c4-ed73d4730364" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_HostingFeeExpense_8333315d-bb08-49fb-bac7-bb1c6388fac2" xlink:href="gree-20250331.xsd#gree_HostingFeeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_218e8c7c-f5f6-44e5-ae06-6c63d2c7b007" xlink:to="loc_gree_HostingFeeExpense_8333315d-bb08-49fb-bac7-bb1c6388fac2" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCostOfOperatingRevenue_35530b3b-30a1-40a8-98e2-3551a3b6e6fb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherCostOfOperatingRevenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_218e8c7c-f5f6-44e5-ae06-6c63d2c7b007" xlink:to="loc_us-gaap_OtherCostOfOperatingRevenue_35530b3b-30a1-40a8-98e2-3551a3b6e6fb" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_90b980aa-4b3b-4860-b998-06753fd97e40" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_GrossProfit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_218e8c7c-f5f6-44e5-ae06-6c63d2c7b007" xlink:to="loc_us-gaap_GrossProfit_90b980aa-4b3b-4860-b998-06753fd97e40" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_1cf1e5fb-7d6b-4747-97e7-397560c13866" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SellingGeneralAndAdministrativeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_218e8c7c-f5f6-44e5-ae06-6c63d2c7b007" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_1cf1e5fb-7d6b-4747-97e7-397560c13866" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationNonproduction_32d69bd1-8abe-4dbb-bcaf-9ded4b3d1b3e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DepreciationNonproduction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_218e8c7c-f5f6-44e5-ae06-6c63d2c7b007" xlink:to="loc_us-gaap_DepreciationNonproduction_32d69bd1-8abe-4dbb-bcaf-9ded4b3d1b3e" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf_051ba6be-fb07-42c3-a460-394afda4bd48" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_218e8c7c-f5f6-44e5-ae06-6c63d2c7b007" xlink:to="loc_us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf_051ba6be-fb07-42c3-a460-394afda4bd48" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CryptoAssetRealizedAndUnrealizedGainLossNonoperating_074258f6-30c5-4eb2-ba5f-00ea49d8abf4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CryptoAssetRealizedAndUnrealizedGainLossNonoperating"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_218e8c7c-f5f6-44e5-ae06-6c63d2c7b007" xlink:to="loc_us-gaap_CryptoAssetRealizedAndUnrealizedGainLossNonoperating_074258f6-30c5-4eb2-ba5f-00ea49d8abf4" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnDispositionOfAssets1_a418887f-91f9-491d-a321-c16ad2cc3ad3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_GainLossOnDispositionOfAssets1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_218e8c7c-f5f6-44e5-ae06-6c63d2c7b007" xlink:to="loc_us-gaap_GainLossOnDispositionOfAssets1_a418887f-91f9-491d-a321-c16ad2cc3ad3" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InsuredEventGainLoss_0b72acb8-fed0-4ca9-ab23-cbc410da2d9d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InsuredEventGainLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_218e8c7c-f5f6-44e5-ae06-6c63d2c7b007" xlink:to="loc_us-gaap_InsuredEventGainLoss_0b72acb8-fed0-4ca9-ab23-cbc410da2d9d" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_6042bea2-e171-42d9-9a69-a278aec48ca2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InterestIncomeExpenseNonoperatingNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_218e8c7c-f5f6-44e5-ae06-6c63d2c7b007" xlink:to="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_6042bea2-e171-42d9-9a69-a278aec48ca2" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAdjustmentOfWarrants_74581029-9577-4b52-af96-f9a0bf492409" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueAdjustmentOfWarrants"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_218e8c7c-f5f6-44e5-ae06-6c63d2c7b007" xlink:to="loc_us-gaap_FairValueAdjustmentOfWarrants_74581029-9577-4b52-af96-f9a0bf492409" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeconsolidationGainOrLossAmount_f7ada68c-7446-4932-b89b-37bf658320bf" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeconsolidationGainOrLossAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_218e8c7c-f5f6-44e5-ae06-6c63d2c7b007" xlink:to="loc_us-gaap_DeconsolidationGainOrLossAmount_f7ada68c-7446-4932-b89b-37bf658320bf" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonrecurringIncomeExpense_239ad834-1998-4e52-8cab-bf6b35432230" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherNonrecurringIncomeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_218e8c7c-f5f6-44e5-ae06-6c63d2c7b007" xlink:to="loc_us-gaap_OtherNonrecurringIncomeExpense_239ad834-1998-4e52-8cab-bf6b35432230" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_f230a386-1e2e-4404-afba-72a56fe37a2e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_218e8c7c-f5f6-44e5-ae06-6c63d2c7b007" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_f230a386-1e2e-4404-afba-72a56fe37a2e" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperations_ebbb4047-612e-4a33-9d4a-f9dfa6d11a26" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeLossFromContinuingOperations"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_218e8c7c-f5f6-44e5-ae06-6c63d2c7b007" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperations_ebbb4047-612e-4a33-9d4a-f9dfa6d11a26" xlink:type="arc" order="18"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://greenidgellc.com/role/SUBSEQUENTEVENTSDetails" xlink:type="simple" xlink:href="gree-20250331.xsd#SUBSEQUENTEVENTSDetails"/>
  <link:definitionLink xlink:role="http://greenidgellc.com/role/SUBSEQUENTEVENTSDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventLineItems_cffc7505-699a-42d4-8f55-734d9f66d7f2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTable_1a45c07f-a9cf-44c7-9660-43edc17887f3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SubsequentEventLineItems_cffc7505-699a-42d4-8f55-734d9f66d7f2" xlink:to="loc_us-gaap_SubsequentEventTable_1a45c07f-a9cf-44c7-9660-43edc17887f3" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiarySaleOfStockAxis_d89f2332-ed1c-411a-817f-192d29fc8557" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsidiarySaleOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_1a45c07f-a9cf-44c7-9660-43edc17887f3" xlink:to="loc_us-gaap_SubsidiarySaleOfStockAxis_d89f2332-ed1c-411a-817f-192d29fc8557" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_d89f2332-ed1c-411a-817f-192d29fc8557_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_d89f2332-ed1c-411a-817f-192d29fc8557" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_d89f2332-ed1c-411a-817f-192d29fc8557_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_ea5a7b80-bdf3-4d21-b0bd-7a33fe18a2fe" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_d89f2332-ed1c-411a-817f-192d29fc8557" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_ea5a7b80-bdf3-4d21-b0bd-7a33fe18a2fe" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_ExchangeAgreementMember_883f131f-f6dd-419b-a70a-3358b90fb369" xlink:href="gree-20250331.xsd#gree_ExchangeAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_ea5a7b80-bdf3-4d21-b0bd-7a33fe18a2fe" xlink:to="loc_gree_ExchangeAgreementMember_883f131f-f6dd-419b-a70a-3358b90fb369" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_EquityInterestPaymentMember_a7add9cf-1c25-45f9-8ff5-410484ad4e1a" xlink:href="gree-20250331.xsd#gree_EquityInterestPaymentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_ea5a7b80-bdf3-4d21-b0bd-7a33fe18a2fe" xlink:to="loc_gree_EquityInterestPaymentMember_a7add9cf-1c25-45f9-8ff5-410484ad4e1a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_ee23104e-3449-4b2a-80c9-f07180de9fa2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_1a45c07f-a9cf-44c7-9660-43edc17887f3" xlink:to="loc_us-gaap_DebtInstrumentAxis_ee23104e-3449-4b2a-80c9-f07180de9fa2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_ee23104e-3449-4b2a-80c9-f07180de9fa2_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_ee23104e-3449-4b2a-80c9-f07180de9fa2" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_ee23104e-3449-4b2a-80c9-f07180de9fa2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_a7c2081f-d1f7-4f1d-b776-e4be511ca7d5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_ee23104e-3449-4b2a-80c9-f07180de9fa2" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_a7c2081f-d1f7-4f1d-b776-e4be511ca7d5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_gree_SeniorNotesDueOctober2026Member_11acfe34-0ef2-4757-a11e-0956845fe10a" xlink:href="gree-20250331.xsd#gree_SeniorNotesDueOctober2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_a7c2081f-d1f7-4f1d-b776-e4be511ca7d5" xlink:to="loc_gree_SeniorNotesDueOctober2026Member_11acfe34-0ef2-4757-a11e-0956845fe10a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_55d23682-8955-492b-80b8-5f079ecf1f96" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_1a45c07f-a9cf-44c7-9660-43edc17887f3" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_55d23682-8955-492b-80b8-5f079ecf1f96" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_55d23682-8955-492b-80b8-5f079ecf1f96_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_55d23682-8955-492b-80b8-5f079ecf1f96" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_55d23682-8955-492b-80b8-5f079ecf1f96_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_da5a95c7-bc4c-4f16-bde9-d25756b1741c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_55d23682-8955-492b-80b8-5f079ecf1f96" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_da5a95c7-bc4c-4f16-bde9-d25756b1741c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_94864797-1d21-40af-9162-f600fe2feabd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_da5a95c7-bc4c-4f16-bde9-d25756b1741c" xlink:to="loc_us-gaap_SeniorNotesMember_94864797-1d21-40af-9162-f600fe2feabd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_7e0ad1c3-f569-498a-b269-65d31edbe848" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_1a45c07f-a9cf-44c7-9660-43edc17887f3" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_7e0ad1c3-f569-498a-b269-65d31edbe848" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_7e0ad1c3-f569-498a-b269-65d31edbe848_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_7e0ad1c3-f569-498a-b269-65d31edbe848" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_7e0ad1c3-f569-498a-b269-65d31edbe848_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_803d0e48-6f40-4293-8efd-eda71e6d1524" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_7e0ad1c3-f569-498a-b269-65d31edbe848" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_803d0e48-6f40-4293-8efd-eda71e6d1524" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_89efac63-33ba-42b8-b070-c90a4c969069" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_803d0e48-6f40-4293-8efd-eda71e6d1524" xlink:to="loc_us-gaap_SubsequentEventMember_89efac63-33ba-42b8-b070-c90a4c969069" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_e40357a1-f925-4ce9-aa19-1dbbd8a3fb6b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_cffc7505-699a-42d4-8f55-734d9f66d7f2" xlink:to="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_e40357a1-f925-4ce9-aa19-1dbbd8a3fb6b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDebtExtinguishmentCosts_a231f180-3a90-47f0-9e4d-2d9f9b7e099d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsOfDebtExtinguishmentCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_cffc7505-699a-42d4-8f55-734d9f66d7f2" xlink:to="loc_us-gaap_PaymentsOfDebtExtinguishmentCosts_a231f180-3a90-47f0-9e4d-2d9f9b7e099d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRepurchasedFaceAmount_78ae74d1-8bb1-4946-86da-565983ac39ab" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentRepurchasedFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_cffc7505-699a-42d4-8f55-734d9f66d7f2" xlink:to="loc_us-gaap_DebtInstrumentRepurchasedFaceAmount_78ae74d1-8bb1-4946-86da-565983ac39ab" xlink:type="arc" order="2"/>
  </link:definitionLink>
</link:linkbase>
