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        <MannerOfCashDisbursementTxt>wire</MannerOfCashDisbursementTxt>
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        <ExplanationTxt>ADDI MAINTAINS RECORDS INCLUDING GRANT PROPOSALS AND OTHER INFORMATION USED TO EVALUATE GRANTEES, GRANT AGREEMENTS, REPORTS FROM GRANTEES ON THEIR USE OF FUNDS AND PROJECT STATUS, AND FOLLOW-UP INFORMATION OBTAINED WHILE INVESTIGATING ANY AT-RISK GRANTS. ADDI's SELECTION PROCESS MAY VARY, BUT IN ANY EVENT THE ORGANIZATION WILL ONLY MAKE A GRANT UPON A WRITTEN DETERMINATION THAT THE RECIPIENT IS A SUITABLE GRANTEE AND THE GRANT WILL FURTHER THE ORGANIZATION'S CHARITABLE PURPOSES. IF ADDI RECEIVES INFORMATION INDICATING THAT A DIVERSION OF GRANT FUNDS HAS TAKEN PLACE, ADDI WILL WITHHOLD ANY FURTHER FUNDS AND WILL INVESTIGATE. IF ADDI DETERMINES THAT A DIVERSION OCCURRED, IT WILL TAKE APPROPRIATE STEPS TO SECURE REPAYMENT AND WITHHOLD FUTURE PAYMENTS UNTIL IT IS SATISFIED FUTURE DIVERSIONS WON'T OCCUR AND THE GRANTEE IS TAKING APPROPRIATE PRECAUTIONS.</ExplanationTxt>
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        <FormAndLineReferenceDesc>PART I, LINE 2</FormAndLineReferenceDesc>
        <ExplanationTxt>ADDI MAINTAINS RECORDS INCLUDING GRANT PROPOSALS AND OTHER INFORMATION USED TO EVALUATE GRANTEES, GRANT AGREEMENTS, REPORTS FROM GRANTEES ON THEIR USE OF FUNDS AND PROJECT STATUS, AND FOLLOW-UP INFORMATION OBTAINED WHILE INVESTIGATING ANY AT-RISK GRANTS. ADDI's SELECTION PROCESS MAY VARY, BUT IN ANY EVENT THE ORGANIZATION WILL ONLY MAKE A GRANT UPON A WRITTEN DETERMINATION THAT THE RECIPIENT IS A SUITABLE GRANTEE AND THE GRANT WILL FURTHER THE ORGANIZATION'S CHARITABLE PURPOSES. IF ADDI RECEIVES INFORMATION INDICATING THAT A DIVERSION OF GRANT FUNDS HAS TAKEN PLACE, ADDI WILL WITHHOLD ANY FURTHER FUNDS AND WILL INVESTIGATE. IF ADDI DETERMINES THAT A DIVERSION OCCURRED, IT WILL TAKE APPROPRIATE STEPS TO SECURE REPAYMENT AND WITHHOLD FUTURE PAYMENTS UNTIL IT IS SATISFIED FUTURE DIVERSIONS WON'T OCCUR AND THE GRANTEE IS TAKING APPROPRIATE PRECAUTIONS.</ExplanationTxt>
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      <ClothingAndHouseholdGoodsGrp />
      <CarsAndOtherVehiclesGrp />
      <BoatsAndPlanesGrp />
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        <MethodOfDeterminingRevenuesTxt>FAIR MARKET VALUE</MethodOfDeterminingRevenuesTxt>
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      <RealEstateOtherGrp />
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      <SupplementalInformationDetail>
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      <SupplementalInformationDetail>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, LINE 7A</FormAndLineReferenceDesc>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, LINE 7B</FormAndLineReferenceDesc>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE DRAFT RETURN IS REVIEWED BY THE FINANCE AND LEGAL FUNCTIONS ANDAPPROVED BY THE SECRETARY AND TREASURER. A FINAL VERSION OF THE FORM ISMADE AVAILABLE TO THE BOARD BEFORE FILING WITH THE IRS.</ExplanationTxt>
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      <SupplementalInformationDetail>
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        <ExplanationTxt>THE CONFLICT OF INTEREST POLICY APPLIES TO DIRECTORS, OFFICERS AND KEYEMPLOYEES. THEY ARE REQUIRED TO DISCLOSE POTENTIAL CONFLICTS WITH RESPECTTO ANY TRANSACTION TO THE BOARD OF DIRECTORS, OR A COMMITTEE THEREOF,WHICH DETERMINES IF THERE IS A CONFLICT. IF THERE IS A CONFLICT, THEPERSON WITH THE CONFLICT MUST REFRAIN FROM ATTEMPTING TO INFLUENCEDECISIONS REGARDING THE TRANSACTION AND IS NOT PERMITTED TO PARTICIPATEIN DISCUSSIONS OF THE TRANSACTION EXCEPT TO RESPOND TO REQUESTS FORINFORMATION ABOUT THE TRANSACTION. DIRECTORS, OFFICERS AND KEY EMPLOYEESARE REQUIRED TO ANNUALLY COMPLETE STATEMENTS DISCLOSING FAMILY MEMBERSAND RELATED ENTITIES WHO MAY DO BUSINESS WITH THE ORGANIZATION. THESESTATEMENTS ARE REVIEWED BY THE ORGANIZATION'S LEGAL COUNSEL AND AREAVAILABLE FOR INSPECTION BY MEMBERS OF THE BOARD OF DIRECTORS.</ExplanationTxt>
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        <PrimaryActivitiesTxt>ADVOCACY</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>DE</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(4)</ExemptCodeSectionTxt>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>BREAKTHROUGH ENERGY FOUNDATION</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>PO BOX 563</AddressLine1Txt>
          <CityNm>KIRKLAND</CityNm>
          <StateAbbreviationCd>WA</StateAbbreviationCd>
          <ZIPCd>98083</ZIPCd>
        </USAddress>
        <EIN>853672460</EIN>
        <PrimaryActivitiesTxt>SCIENTIFIC</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>DE</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>7</PublicCharityStatusTxt>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <ReceiptOfIntAnntsRntsRyltsInd>false</ReceiptOfIntAnntsRntsRyltsInd>
      <GiftGrntOrCapContriToOthOrgInd>false</GiftGrntOrCapContriToOthOrgInd>
      <GiftGrntCapContriFromOthOrgInd>false</GiftGrntCapContriFromOthOrgInd>
      <LoansOrGuaranteesToOtherOrgInd>false</LoansOrGuaranteesToOtherOrgInd>
      <LoansOrGuaranteesFromOthOrgInd>false</LoansOrGuaranteesFromOthOrgInd>
      <DivRelatedOrganizationInd>false</DivRelatedOrganizationInd>
      <AssetSaleToOtherOrgInd>false</AssetSaleToOtherOrgInd>
      <AssetPurchaseFromOtherOrgInd>false</AssetPurchaseFromOtherOrgInd>
      <AssetExchangeInd>false</AssetExchangeInd>
      <RentalOfFacilitiesToOthOrgInd>false</RentalOfFacilitiesToOthOrgInd>
      <RentalOfFcltsFromOthOrgInd>false</RentalOfFcltsFromOthOrgInd>
      <PerformOfServicesForOthOrgInd>false</PerformOfServicesForOthOrgInd>
      <PerformOfServicesByOtherOrgInd>false</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>false</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>false</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>false</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>false</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>false</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>false</TransferFromOtherOrgInd>
    </IRS990ScheduleR>
  </ReturnData>
</Return>
