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      </GainOrLossGrp>
      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>-180028</TotalRevenueColumnAmt>
        <ExclusionAmt>-180028</ExclusionAmt>
      </NetGainOrLossInvestmentsGrp>
      <OtherRevenueMiscGrp>
        <Desc>Non-Operating</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>33096</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>33096</RelatedOrExemptFuncIncomeAmt>
      </OtherRevenueMiscGrp>
      <OtherRevenueTotalAmt>33096</OtherRevenueTotalAmt>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>56027585</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>55737035</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>290550</ExclusionAmt>
      </TotalRevenueGrp>
      <InfoInScheduleOPartIXInd>X</InfoInScheduleOPartIXInd>
      <BenefitsToMembersGrp>
        <TotalAmt>3389982</TotalAmt>
      </BenefitsToMembersGrp>
      <CompCurrentOfcrDirectorsGrp>
        <TotalAmt>614682</TotalAmt>
      </CompCurrentOfcrDirectorsGrp>
      <OtherSalariesAndWagesGrp>
        <TotalAmt>752564</TotalAmt>
      </OtherSalariesAndWagesGrp>
      <InterestGrp>
        <TotalAmt>2748745</TotalAmt>
      </InterestGrp>
      <DepreciationDepletionGrp>
        <TotalAmt>4610130</TotalAmt>
      </DepreciationDepletionGrp>
      <OtherExpensesGrp>
        <Desc>Cost of Power</Desc>
        <TotalAmt>29403648</TotalAmt>
        <ProgramServicesAmt>29403648</ProgramServicesAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>Distribution Expense</Desc>
        <TotalAmt>8755328</TotalAmt>
        <ProgramServicesAmt>8755328</ProgramServicesAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>Admin &amp; General</Desc>
        <TotalAmt>2518368</TotalAmt>
        <ProgramServicesAmt>2518368</ProgramServicesAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>Member Services</Desc>
        <TotalAmt>1663771</TotalAmt>
        <ProgramServicesAmt>1663771</ProgramServicesAmt>
      </OtherExpensesGrp>
      <AllOtherExpensesGrp>
        <TotalAmt>1570367</TotalAmt>
      </AllOtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>56027585</TotalAmt>
        <ProgramServicesAmt>0</ProgramServicesAmt>
        <ManagementAndGeneralAmt>0</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>2158285</BOYAmt>
        <EOYAmt>977536</EOYAmt>
      </CashNonInterestBearingGrp>
      <SavingsAndTempCashInvstGrp>
        <BOYAmt>8948000</BOYAmt>
      </SavingsAndTempCashInvstGrp>
      <AccountsReceivableGrp>
        <BOYAmt>4962078</BOYAmt>
        <EOYAmt>4356273</EOYAmt>
      </AccountsReceivableGrp>
      <InventoriesForSaleOrUseGrp>
        <BOYAmt>2190305</BOYAmt>
        <EOYAmt>2485207</EOYAmt>
      </InventoriesForSaleOrUseGrp>
      <PrepaidExpensesDefrdChargesGrp>
        <BOYAmt>326747</BOYAmt>
        <EOYAmt>2400450</EOYAmt>
      </PrepaidExpensesDefrdChargesGrp>
      <LandBldgEquipCostOrOtherBssAmt>173645223</LandBldgEquipCostOrOtherBssAmt>
      <LandBldgEquipAccumDeprecAmt>61868100</LandBldgEquipAccumDeprecAmt>
      <LandBldgEquipBasisNetGrp>
        <BOYAmt>104720429</BOYAmt>
        <EOYAmt>111777123</EOYAmt>
      </LandBldgEquipBasisNetGrp>
      <InvestmentsProgramRelatedGrp>
        <BOYAmt>32643789</BOYAmt>
        <EOYAmt>34530942</EOYAmt>
      </InvestmentsProgramRelatedGrp>
      <TotalAssetsGrp>
        <BOYAmt>155949633</BOYAmt>
        <EOYAmt>156527531</EOYAmt>
      </TotalAssetsGrp>
      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>14528806</BOYAmt>
        <EOYAmt>12044882</EOYAmt>
      </AccountsPayableAccrExpnssGrp>
      <DeferredRevenueGrp>
        <BOYAmt>1500000</BOYAmt>
        <EOYAmt>1000000</EOYAmt>
      </DeferredRevenueGrp>
      <MortgNotesPyblScrdInvstPropGrp>
        <BOYAmt>60415864</BOYAmt>
        <EOYAmt>59373795</EOYAmt>
      </MortgNotesPyblScrdInvstPropGrp>
      <UnsecuredNotesLoansPayableGrp>
        <EOYAmt>2537233</EOYAmt>
      </UnsecuredNotesLoansPayableGrp>
      <OtherLiabilitiesGrp>
        <BOYAmt>749279</BOYAmt>
        <EOYAmt>588496</EOYAmt>
      </OtherLiabilitiesGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>77193949</BOYAmt>
        <EOYAmt>75544406</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrgDoesNotFollowFASB117Ind>X</OrgDoesNotFollowFASB117Ind>
      <RtnEarnEndowmentIncmOthFndsGrp>
        <BOYAmt>78755684</BOYAmt>
        <EOYAmt>80983125</EOYAmt>
      </RtnEarnEndowmentIncmOthFndsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>78755684</BOYAmt>
        <EOYAmt>80983125</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>155949633</BOYAmt>
        <EOYAmt>156527531</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <InfoInScheduleOPartXIInd>X</InfoInScheduleOPartXIInd>
      <ReconcilationRevenueExpnssAmt>0</ReconcilationRevenueExpnssAmt>
      <OtherChangesInNetAssetsAmt>2227441</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>false</AccountantCompileOrReviewInd>
      <FSAuditedInd>false</FSAuditedInd>
    </IRS990>
    <IRS990ScheduleC documentId="990C">
      <PoliticalExpendituresAmt>2500</PoliticalExpendituresAmt>
      <InternalFundsContributedAmt>2500</InternalFundsContributedAmt>
      <TotalExemptFunctionExpendAmt>2500</TotalExemptFunctionExpendAmt>
      <Form1120POLFiledInd>true</Form1120POLFiledInd>
      <Section527PoliticalOrgGrp>
        <OrganizationBusinessName>
          <BusinessNameLine1Txt>AMECPAC</BusinessNameLine1Txt>
        </OrganizationBusinessName>
        <USAddress>
          <AddressLine1Txt>PO Box 1645</AddressLine1Txt>
          <CityNm>Jefferson City</CityNm>
          <StateAbbreviationCd>MO</StateAbbreviationCd>
          <ZIPCd>65102</ZIPCd>
        </USAddress>
        <EIN>431441879</EIN>
        <PaidInternalFundsAmt>2500</PaidInternalFundsAmt>
      </Section527PoliticalOrgGrp>
    </IRS990ScheduleC>
    <IRS990ScheduleD documentId="990D">
      <LandGrp>
        <OtherCostOrOtherBasisAmt>2881471</OtherCostOrOtherBasisAmt>
        <BookValueAmt>2881471</BookValueAmt>
      </LandGrp>
      <BuildingsGrp>
        <OtherCostOrOtherBasisAmt>10181124</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>2365714</DepreciationAmt>
        <BookValueAmt>7815410</BookValueAmt>
      </BuildingsGrp>
      <OtherLandBuildingsGrp>
        <OtherCostOrOtherBasisAmt>160582628</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>59502386</DepreciationAmt>
        <BookValueAmt>101080242</BookValueAmt>
      </OtherLandBuildingsGrp>
      <TotalBookValueLandBuildingsAmt>111777123</TotalBookValueLandBuildingsAmt>
      <InvstProgramRelatedOrgGrp>
        <Desc>Investment in Assoc Organizations</Desc>
        <BookValueAmt>33130600</BookValueAmt>
        <MethodValuationCd>C</MethodValuationCd>
      </InvstProgramRelatedOrgGrp>
      <InvstProgramRelatedOrgGrp>
        <Desc>Capital Term Certificates</Desc>
        <BookValueAmt>1400342</BookValueAmt>
        <MethodValuationCd>C</MethodValuationCd>
      </InvstProgramRelatedOrgGrp>
      <TotalBookValueProgramRltdAmt>34530942</TotalBookValueProgramRltdAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>OPEB Liability</Desc>
        <Amt>588496</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>588496</TotalLiabilityAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Footnote for uncertain tax position under FIN 48 (Part X)</FormAndLineReferenceDesc>
        <ExplanationTxt>The Cooperative has been granted exemption from federal income taxes under Section 501(c)(12) of the Internal Revenue Code and files IRS Form 990 annually. An evaluation of whether or not it has any uncertain tax positions is determined on an annual basis by the Cooperative. While the Cooperative believes it has adequately provided for all tax positions, amounts asserted by taxing authorities could be different than the positions taken by the Cooperative. The Cooperative recognizes any interest and penalties assessed by taxing authorities in income tax expense and, with few exceptions, is no longer subject to federal, state, or local income tax examinations by tax authorities for years before 2020.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleJ documentId="990J">
      <PaymentsForUseOfResidenceInd>X</PaymentsForUseOfResidenceInd>
      <CompensationSurveyInd>X</CompensationSurveyInd>
      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>false</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>false</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>false</EquityBasedCompArrngmInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>John H Singleton</PersonNm>
        <TitleTxt>CEO</TitleTxt>
        <BaseCompensationFilingOrgAmt>195169</BaseCompensationFilingOrgAmt>
        <DeferredCompensationFlngOrgAmt>108990</DeferredCompensationFlngOrgAmt>
        <NontaxableBenefitsFilingOrgAmt>30230</NontaxableBenefitsFilingOrgAmt>
        <TotalCompensationFilingOrgAmt>334389</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>John C Eaves</PersonNm>
        <TitleTxt>CFO</TitleTxt>
        <BaseCompensationFilingOrgAmt>172965</BaseCompensationFilingOrgAmt>
        <DeferredCompensationFlngOrgAmt>33948</DeferredCompensationFlngOrgAmt>
        <NontaxableBenefitsFilingOrgAmt>29830</NontaxableBenefitsFilingOrgAmt>
        <TotalCompensationFilingOrgAmt>236743</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Paul Montgomery</PersonNm>
        <TitleTxt>VP Engineering</TitleTxt>
        <BaseCompensationFilingOrgAmt>186312</BaseCompensationFilingOrgAmt>
        <DeferredCompensationFlngOrgAmt>57442</DeferredCompensationFlngOrgAmt>
        <NontaxableBenefitsFilingOrgAmt>29830</NontaxableBenefitsFilingOrgAmt>
        <TotalCompensationFilingOrgAmt>273584</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Donald E England</PersonNm>
        <TitleTxt>Manager Line Distribution</TitleTxt>
        <BaseCompensationFilingOrgAmt>156510</BaseCompensationFilingOrgAmt>
        <DeferredCompensationFlngOrgAmt>91466</DeferredCompensationFlngOrgAmt>
        <NontaxableBenefitsFilingOrgAmt>29766</NontaxableBenefitsFilingOrgAmt>
        <TotalCompensationFilingOrgAmt>277742</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Korey King</PersonNm>
        <TitleTxt>District Manager</TitleTxt>
        <BaseCompensationFilingOrgAmt>135739</BaseCompensationFilingOrgAmt>
        <DeferredCompensationFlngOrgAmt>35963</DeferredCompensationFlngOrgAmt>
        <NontaxableBenefitsFilingOrgAmt>29536</NontaxableBenefitsFilingOrgAmt>
        <TotalCompensationFilingOrgAmt>201238</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="990O">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Members or stockholder classes and rights Part VI line 6</FormAndLineReferenceDesc>
        <ExplanationTxt>BLACK RIVER ELECTRIC COOPERATIVE IS A MEMBER OWNED COOPERATIVE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Member election for additional members Part VI line 7a</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION HAS MEMBERS WHO ELECT THE MEMBERS OF THE GOVERNING BODY.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Governing body decisions Part VI line 7b</FormAndLineReferenceDesc>
        <ExplanationTxt>THE DECISIONS OF THE GOVERNING BODY ARE SUBJECT TO THE MEMBERS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990 governing body review Part VI line 11</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FORM 990 IS REVIEWED BY THE CFO PRIOR TO FILING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Conflict of interest policy compliance Part VI line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>MANAGEMENT IS RESPONSIBLE FOR ENFORCING POLICIES AND IS PROACTIVE IN DOING SO. IN ADDITION, ALL EMPLOYEES ARE ENCOURAGED TO REPORT POTENTIAL VIOLATIONS OF POLICY AS WELL AS ANY ISSUES WHERE POLICY APPLICATION QUESTIONS ARISE TO MANAGEMENT.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>CEO executive director top management comp Part VI line 15a</FormAndLineReferenceDesc>
        <ExplanationTxt>CEO COMPENSATION IS DELIBERATED AND ESTABLISHED BY THE BOARD OF DIRECTORS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Governing documents etc available to public Part VI line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>GOVERNING DOCUMENTS ARE AVAILABLE UPON REQUEST TO THE CEO AND AT THE ANNUAL MEMBERSHIP MEETING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Audited by an independent accountant Part XII line 2b</FormAndLineReferenceDesc>
        <ExplanationTxt>Form 990, Part XII, Line 2Black River Electric Cooperatives financial statement year end differs from its tax year end. The Cooperative receives audited financial statements on an annual basis for the year ended March 31st.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Explanation of other changes in net assets or fund balances Part XI line 9</FormAndLineReferenceDesc>
        <ExplanationTxt>Net Margins Assigned to Members $ 3,389,982Increase in Memberships $ 3,741Change in OCI $ 86,610Other Changes $ 158,497Retirement of Capital Credits $ -1,411,389 Total $ 2,227,441</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part IX response or note to any line in Part IX</FormAndLineReferenceDesc>
        <ExplanationTxt>Form 990, Part IX, Line 4The instructions to the 2023 Form 990 indicate that organizations exempt under Section 501(c)(12) should report patronage dividends paid to their members in Part IX, Line 4 of Form 990. The Cooperative has interpreted the words patronage dividends paid in the instructions to mean margins that are assigned or assignable to the members. The Cooperative assigns the net margins to its members each year. Therefore, the amount listed in Part IX, Line 4 represents the net margins assignable to the members for the calendar year ended December 31, 2023.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>