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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>119995</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>JOHN PACKARD</PersonNm>
        <TitleTxt>MGR-POWER SUPPLY</TitleTxt>
        <AverageHoursPerWeekRt>50.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>271745</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>113973</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>DARRELL J KLIMITCHEK</PersonNm>
        <TitleTxt>MGR-TECH SERVICES</TitleTxt>
        <AverageHoursPerWeekRt>50.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>230944</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>100737</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>CLIFTON E LANGE</PersonNm>
        <TitleTxt>MGR-WHOLESALE MKT</TitleTxt>
        <AverageHoursPerWeekRt>50.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>232982</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>100012</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>ROGER BISHOP</PersonNm>
        <TitleTxt>PLANT MANAGER</TitleTxt>
        <AverageHoursPerWeekRt>50.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>220330</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>95464</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>DOROTHY K DISANTO</PersonNm>
        <TitleTxt>MBR SERVICES COORD</TitleTxt>
        <AverageHoursPerWeekRt>45.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
        <ReportableCompFromOrgAmt>209238</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>95470</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <TotalReportableCompFromOrgAmt>3244640</TotalReportableCompFromOrgAmt>
      <TotalOtherCompensationAmt>958162</TotalOtherCompensationAmt>
      <IndivRcvdGreaterThan100KCnt>106</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>false</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>true</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>false</CompensationFromOtherSrcsInd>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>ROTH CONSTRUCTION</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>2202 DELMAR DR</AddressLine1Txt>
            <CityNm>VICTORIA</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>77901</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>CONSTRUCTION</ServicesDesc>
        <CompensationAmt>3338706</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>LAMBDA CONSTRUCTION LTD</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>211 JESSES CIRCLE</AddressLine1Txt>
            <CityNm>NEW BRAUNFELS</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>78132</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>CONSTRUCTION</ServicesDesc>
        <CompensationAmt>3043381</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>MESA LINE SERVICES LLC</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>2505 FM 1462</AddressLine1Txt>
            <CityNm>ALVIN</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>77511</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>CONSTRUCTION</ServicesDesc>
        <CompensationAmt>2858099</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>HAYNES AND BOONE LLP</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>P O BOX 841399</AddressLine1Txt>
            <CityNm>DALLAS</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>75284</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>ATTORNEY</ServicesDesc>
        <CompensationAmt>2828164</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>VOLT POWER LLC</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>2910 HWY 31 NW</AddressLine1Txt>
            <CityNm>HARTSELLE</CityNm>
            <StateAbbreviationCd>AL</StateAbbreviationCd>
            <ZIPCd>35640</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>CONSTRUCTION</ServicesDesc>
        <CompensationAmt>2225684</CompensationAmt>
      </ContractorCompensationGrp>
      <CntrctRcvdGreaterThan100KCnt>34</CntrctRcvdGreaterThan100KCnt>
      <TotalContributionsAmt>0</TotalContributionsAmt>
      <ProgramServiceRevenueGrp>
        <Desc>CAPITAL CREDITS</Desc>
        <BusinessCd>221000</BusinessCd>
        <TotalRevenueColumnAmt>4055294</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>4055294</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>SALE OF ELECTRICITY-GROSS</Desc>
        <BusinessCd>221000</BusinessCd>
        <TotalRevenueColumnAmt>522288548</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>522288548</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <TotalProgramServiceRevenueAmt>526343842</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>1776723</TotalRevenueColumnAmt>
        <ExclusionAmt>1776723</ExclusionAmt>
      </InvestmentIncomeGrp>
      <IncmFromInvestBondProceedsGrp>
        <TotalRevenueColumnAmt>0</TotalRevenueColumnAmt>
      </IncmFromInvestBondProceedsGrp>
      <RoyaltiesRevenueGrp>
        <TotalRevenueColumnAmt>0</TotalRevenueColumnAmt>
      </RoyaltiesRevenueGrp>
      <NetRentalIncomeOrLossGrp>
        <TotalRevenueColumnAmt>0</TotalRevenueColumnAmt>
      </NetRentalIncomeOrLossGrp>
      <GrossAmountSalesAssetsGrp>
        <OtherAmt>104335</OtherAmt>
      </GrossAmountSalesAssetsGrp>
      <LessCostOthBasisSalesExpnssGrp>
        <OtherAmt>111702</OtherAmt>
      </LessCostOthBasisSalesExpnssGrp>
      <GainOrLossGrp>
        <OtherAmt>-7367</OtherAmt>
      </GainOrLossGrp>
      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>-7367</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>-7367</RelatedOrExemptFuncIncomeAmt>
      </NetGainOrLossInvestmentsGrp>
      <NetIncmFromFundraisingEvtGrp>
        <TotalRevenueColumnAmt>0</TotalRevenueColumnAmt>
      </NetIncmFromFundraisingEvtGrp>
      <NetIncomeFromGamingGrp>
        <TotalRevenueColumnAmt>0</TotalRevenueColumnAmt>
      </NetIncomeFromGamingGrp>
      <NetIncomeOrLossGrp>
        <TotalRevenueColumnAmt>0</TotalRevenueColumnAmt>
      </NetIncomeOrLossGrp>
      <OtherRevenueMiscGrp>
        <Desc>INTERNET</Desc>
        <BusinessCd>221000</BusinessCd>
        <TotalRevenueColumnAmt>1800</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>1800</RelatedOrExemptFuncIncomeAmt>
      </OtherRevenueMiscGrp>
      <OtherRevenueMiscGrp>
        <Desc>MISC. NON-OPER. INCOME</Desc>
        <BusinessCd>221000</BusinessCd>
        <TotalRevenueColumnAmt>920738</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>920738</RelatedOrExemptFuncIncomeAmt>
      </OtherRevenueMiscGrp>
      <OtherRevenueMiscGrp>
        <Desc>RENT OF ELECTRIC PROP.</Desc>
        <TotalRevenueColumnAmt>5115</TotalRevenueColumnAmt>
        <ExclusionAmt>5115</ExclusionAmt>
      </OtherRevenueMiscGrp>
      <OtherRevenueTotalAmt>927653</OtherRevenueTotalAmt>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>529040851</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>527259013</RelatedOrExemptFuncIncomeAmt>
        <ExclusionAmt>1781838</ExclusionAmt>
      </TotalRevenueGrp>
      <GrantsToDomesticOrgsGrp>
        <TotalAmt>0</TotalAmt>
      </GrantsToDomesticOrgsGrp>
      <GrantsToDomesticIndividualsGrp>
        <TotalAmt>0</TotalAmt>
      </GrantsToDomesticIndividualsGrp>
      <ForeignGrantsGrp>
        <TotalAmt>0</TotalAmt>
      </ForeignGrantsGrp>
      <BenefitsToMembersGrp>
        <TotalAmt>32462191</TotalAmt>
      </BenefitsToMembersGrp>
      <CompCurrentOfcrDirectorsGrp>
        <TotalAmt>1726369</TotalAmt>
      </CompCurrentOfcrDirectorsGrp>
      <CompDisqualPersonsGrp>
        <TotalAmt>0</TotalAmt>
      </CompDisqualPersonsGrp>
      <OtherSalariesAndWagesGrp>
        <TotalAmt>21011021</TotalAmt>
      </OtherSalariesAndWagesGrp>
      <PensionPlanContributionsGrp>
        <TotalAmt>5951609</TotalAmt>
      </PensionPlanContributionsGrp>
      <OtherEmployeeBenefitsGrp>
        <TotalAmt>6513855</TotalAmt>
      </OtherEmployeeBenefitsGrp>
      <PayrollTaxesGrp>
        <TotalAmt>1565837</TotalAmt>
      </PayrollTaxesGrp>
      <FeesForServicesManagementGrp>
        <TotalAmt>0</TotalAmt>
      </FeesForServicesManagementGrp>
      <FeesForServicesLegalGrp>
        <TotalAmt>0</TotalAmt>
      </FeesForServicesLegalGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>0</TotalAmt>
      </FeesForServicesAccountingGrp>
      <FeesForServicesLobbyingGrp>
        <TotalAmt>0</TotalAmt>
      </FeesForServicesLobbyingGrp>
      <FeesForServicesProfFundraising>
        <TotalAmt>0</TotalAmt>
      </FeesForServicesProfFundraising>
      <FeesForSrvcInvstMgmntFeesGrp>
        <TotalAmt>0</TotalAmt>
      </FeesForSrvcInvstMgmntFeesGrp>
      <FeesForServicesOtherGrp>
        <TotalAmt>0</TotalAmt>
      </FeesForServicesOtherGrp>
      <AdvertisingGrp>
        <TotalAmt>0</TotalAmt>
      </AdvertisingGrp>
      <OfficeExpensesGrp>
        <TotalAmt>0</TotalAmt>
      </OfficeExpensesGrp>
      <InformationTechnologyGrp>
        <TotalAmt>0</TotalAmt>
      </InformationTechnologyGrp>
      <RoyaltiesGrp>
        <TotalAmt>0</TotalAmt>
      </RoyaltiesGrp>
      <OccupancyGrp>
        <TotalAmt>0</TotalAmt>
      </OccupancyGrp>
      <TravelGrp>
        <TotalAmt>0</TotalAmt>
      </TravelGrp>
      <PymtTravelEntrtnmntPubOfclGrp>
        <TotalAmt>0</TotalAmt>
      </PymtTravelEntrtnmntPubOfclGrp>
      <ConferencesMeetingsGrp>
        <TotalAmt>0</TotalAmt>
      </ConferencesMeetingsGrp>
      <InterestGrp>
        <TotalAmt>43065873</TotalAmt>
      </InterestGrp>
      <PaymentsToAffiliatesGrp>
        <TotalAmt>0</TotalAmt>
      </PaymentsToAffiliatesGrp>
      <DepreciationDepletionGrp>
        <TotalAmt>90363610</TotalAmt>
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      <InsuranceGrp>
        <TotalAmt>799097</TotalAmt>
      </InsuranceGrp>
      <OtherExpensesGrp>
        <Desc>OPERATION EXP-OTH POWER SUPPLY</Desc>
        <TotalAmt>309840775</TotalAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>OPERATION EXP- PRODUCTION FUEL</Desc>
        <TotalAmt>36788814</TotalAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>MAINTENANCE EXP- PRODUCTION</Desc>
        <TotalAmt>8277836</TotalAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>PROPERTY TAXES</Desc>
        <TotalAmt>8243400</TotalAmt>
      </OtherExpensesGrp>
      <AllOtherExpensesGrp>
        <TotalAmt>12557950</TotalAmt>
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      <TotalFunctionalExpensesGrp>
        <TotalAmt>579168237</TotalAmt>
        <ProgramServicesAmt>0</ProgramServicesAmt>
        <ManagementAndGeneralAmt>0</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>33033966</BOYAmt>
        <EOYAmt>29186529</EOYAmt>
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      <SavingsAndTempCashInvstGrp>
        <BOYAmt>34000000</BOYAmt>
        <EOYAmt>39000000</EOYAmt>
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      <PledgesAndGrantsReceivableGrp>
        <EOYAmt>0</EOYAmt>
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      <AccountsReceivableGrp>
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        <EOYAmt>48903896</EOYAmt>
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      <ReceivablesFromOfficersEtcGrp>
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      <RcvblFromDisqualifiedPrsnGrp>
        <EOYAmt>0</EOYAmt>
      </RcvblFromDisqualifiedPrsnGrp>
      <OthNotesLoansReceivableNetGrp>
        <EOYAmt>0</EOYAmt>
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      <InventoriesForSaleOrUseGrp>
        <BOYAmt>17857896</BOYAmt>
        <EOYAmt>18623278</EOYAmt>
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      <PrepaidExpensesDefrdChargesGrp>
        <BOYAmt>31472589</BOYAmt>
        <EOYAmt>30232148</EOYAmt>
      </PrepaidExpensesDefrdChargesGrp>
      <LandBldgEquipCostOrOtherBssAmt>1537595960</LandBldgEquipCostOrOtherBssAmt>
      <LandBldgEquipAccumDeprecAmt>364171126</LandBldgEquipAccumDeprecAmt>
      <LandBldgEquipBasisNetGrp>
        <BOYAmt>1175724342</BOYAmt>
        <EOYAmt>1173424834</EOYAmt>
      </LandBldgEquipBasisNetGrp>
      <InvestmentsPubTradedSecGrp>
        <EOYAmt>0</EOYAmt>
      </InvestmentsPubTradedSecGrp>
      <InvestmentsOtherSecuritiesGrp>
        <EOYAmt>0</EOYAmt>
      </InvestmentsOtherSecuritiesGrp>
      <InvestmentsProgramRelatedGrp>
        <BOYAmt>63163817</BOYAmt>
        <EOYAmt>64631850</EOYAmt>
      </InvestmentsProgramRelatedGrp>
      <IntangibleAssetsGrp>
        <BOYAmt>9544</BOYAmt>
        <EOYAmt>9544</EOYAmt>
      </IntangibleAssetsGrp>
      <OtherAssetsTotalGrp>
        <EOYAmt>0</EOYAmt>
      </OtherAssetsTotalGrp>
      <TotalAssetsGrp>
        <BOYAmt>1405884368</BOYAmt>
        <EOYAmt>1404012079</EOYAmt>
      </TotalAssetsGrp>
      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>54882220</BOYAmt>
        <EOYAmt>58433015</EOYAmt>
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      <MortgNotesPyblScrdInvstPropGrp>
        <BOYAmt>1049179830</BOYAmt>
        <EOYAmt>1014133543</EOYAmt>
      </MortgNotesPyblScrdInvstPropGrp>
      <OtherLiabilitiesGrp>
        <BOYAmt>5922283</BOYAmt>
        <EOYAmt>3083297</EOYAmt>
      </OtherLiabilitiesGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>1109984333</BOYAmt>
        <EOYAmt>1075649855</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrgDoesNotFollowSFAS117Ind>X</OrgDoesNotFollowSFAS117Ind>
      <CapStkTrPrinCurrentFundsGrp>
        <BOYAmt>450</BOYAmt>
        <EOYAmt>450</EOYAmt>
      </CapStkTrPrinCurrentFundsGrp>
      <PdInCapSrplsLandBldgEqpFundGrp>
        <BOYAmt>488</BOYAmt>
        <EOYAmt>488</EOYAmt>
      </PdInCapSrplsLandBldgEqpFundGrp>
      <RtnEarnEndowmentIncmOthFndsGrp>
        <BOYAmt>295899097</BOYAmt>
        <EOYAmt>328361286</EOYAmt>
      </RtnEarnEndowmentIncmOthFndsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>295900035</BOYAmt>
        <EOYAmt>328362224</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>1405884368</BOYAmt>
        <EOYAmt>1404012079</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <InfoInScheduleOPartXIInd>X</InfoInScheduleOPartXIInd>
      <ReconcilationRevenueExpnssAmt>-50127386</ReconcilationRevenueExpnssAmt>
      <OtherChangesInNetAssetsAmt>82589575</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>false</AccountantCompileOrReviewInd>
      <FSAuditedInd>true</FSAuditedInd>
      <FSAuditedBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
      </FSAuditedBasisGrp>
      <AuditCommitteeInd>true</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>false</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleD documentId="IRS990ScheduleD" softwareId="18007218" softwareVersionNum="2018v3.1">
      <LandGrp>
        <OtherCostOrOtherBasisAmt>55598057</OtherCostOrOtherBasisAmt>
        <BookValueAmt>55598057</BookValueAmt>
      </LandGrp>
      <BuildingsGrp>
        <OtherCostOrOtherBasisAmt>17803759</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>5354948</DepreciationAmt>
        <BookValueAmt>12448811</BookValueAmt>
      </BuildingsGrp>
      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>1394135679</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>358816178</DepreciationAmt>
        <BookValueAmt>1035319501</BookValueAmt>
      </EquipmentGrp>
      <OtherLandBuildingsGrp>
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        <BookValueAmt>70058465</BookValueAmt>
      </OtherLandBuildingsGrp>
      <TotalBookValueLandBuildingsAmt>1173424834</TotalBookValueLandBuildingsAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>net credits for excess fuel, energy</Desc>
        <Amt>3083297</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>3083297</TotalLiabilityAmt>
      <TotalRevEtcAuditedFinclStmtAmt>529040851</TotalRevEtcAuditedFinclStmtAmt>
      <RevenueSubtotalAmt>529040851</RevenueSubtotalAmt>
      <TotalRevenuePerForm990Amt>529040851</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>496578662</TotExpnsEtcAuditedFinclStmtAmt>
      <ExpensesSubtotalAmt>496578662</ExpensesSubtotalAmt>
      <OtherExpensesNotIncludedAmt>82589575</OtherExpensesNotIncludedAmt>
      <ExpensesNotRptFinclStmtAmt>82589575</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>579168237</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part XII, Line 4b: Other revenue amounts included on 990 but not included in F/S</FormAndLineReferenceDesc>
        <ExplanationTxt>PATRONAGE DIVIDENDS ALLOCATED TO MEMBERS $32462191 BOOK / TAX DEPRECIATION DIFFERENCE $50127384</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleJ documentId="IRS990ScheduleJ" softwareId="18007218" softwareVersionNum="2018v3.1">
      <IndependentConsultantInd>X</IndependentConsultantInd>
      <CompensationSurveyInd>X</CompensationSurveyInd>
      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>false</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>true</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>false</EquityBasedCompArrngmInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>CLIFTON E LANGE</PersonNm>
        <TitleTxt>MGR-WHOLESALE MKT</TitleTxt>
        <BaseCompensationFilingOrgAmt>232982</BaseCompensationFilingOrgAmt>
        <DeferredCompensationFlngOrgAmt>71500</DeferredCompensationFlngOrgAmt>
        <NontaxableBenefitsFilingOrgAmt>28512</NontaxableBenefitsFilingOrgAmt>
        <TotalCompensationFilingOrgAmt>332994</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>CORY J ALLEN</PersonNm>
        <TitleTxt>ASST. GENERAL MANAGER</TitleTxt>
        <BaseCompensationFilingOrgAmt>293573</BaseCompensationFilingOrgAmt>
        <DeferredCompensationFlngOrgAmt>90871</DeferredCompensationFlngOrgAmt>
        <NontaxableBenefitsFilingOrgAmt>29124</NontaxableBenefitsFilingOrgAmt>
        <TotalCompensationFilingOrgAmt>413568</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>DARRELL J KLIMITCHEK</PersonNm>
        <TitleTxt>MGR-TECH SERVICES</TitleTxt>
        <BaseCompensationFilingOrgAmt>230944</BaseCompensationFilingOrgAmt>
        <DeferredCompensationFlngOrgAmt>72201</DeferredCompensationFlngOrgAmt>
        <NontaxableBenefitsFilingOrgAmt>28536</NontaxableBenefitsFilingOrgAmt>
        <TotalCompensationFilingOrgAmt>331681</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>DOROTHY K DISANTO</PersonNm>
        <TitleTxt>MBR SERVICES COORD</TitleTxt>
        <BaseCompensationFilingOrgAmt>209238</BaseCompensationFilingOrgAmt>
        <DeferredCompensationFlngOrgAmt>67086</DeferredCompensationFlngOrgAmt>
        <NontaxableBenefitsFilingOrgAmt>28384</NontaxableBenefitsFilingOrgAmt>
        <TotalCompensationFilingOrgAmt>304708</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>FRANCES NITSCHMANN</PersonNm>
        <TitleTxt>CFO</TitleTxt>
        <BaseCompensationFilingOrgAmt>224632</BaseCompensationFilingOrgAmt>
        <DeferredCompensationFlngOrgAmt>69542</DeferredCompensationFlngOrgAmt>
        <NontaxableBenefitsFilingOrgAmt>28450</NontaxableBenefitsFilingOrgAmt>
        <TotalCompensationFilingOrgAmt>322624</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>JOHN PACKARD</PersonNm>
        <TitleTxt>MGR-POWER SUPPLY</TitleTxt>
        <BaseCompensationFilingOrgAmt>271745</BaseCompensationFilingOrgAmt>
        <DeferredCompensationFlngOrgAmt>85032</DeferredCompensationFlngOrgAmt>
        <NontaxableBenefitsFilingOrgAmt>28941</NontaxableBenefitsFilingOrgAmt>
        <TotalCompensationFilingOrgAmt>385718</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>MIKE KEZAR</PersonNm>
        <TitleTxt>GENERAL MANAGER</TitleTxt>
        <BaseCompensationFilingOrgAmt>670404</BaseCompensationFilingOrgAmt>
        <OtherCompensationFilingOrgAmt>658592</OtherCompensationFilingOrgAmt>
        <DeferredCompensationFlngOrgAmt>204154</DeferredCompensationFlngOrgAmt>
        <NontaxableBenefitsFilingOrgAmt>30365</NontaxableBenefitsFilingOrgAmt>
        <TotalCompensationFilingOrgAmt>1563515</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>ROGER BISHOP</PersonNm>
        <TitleTxt>PLANT MANAGER</TitleTxt>
        <BaseCompensationFilingOrgAmt>220330</BaseCompensationFilingOrgAmt>
        <DeferredCompensationFlngOrgAmt>67564</DeferredCompensationFlngOrgAmt>
        <NontaxableBenefitsFilingOrgAmt>27900</NontaxableBenefitsFilingOrgAmt>
        <TotalCompensationFilingOrgAmt>315794</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, Additional Information</FormAndLineReferenceDesc>
        <ExplanationTxt>In reference to Schedule J, Part I, Question 4b, Mike Kezar received a $658,592 distribution from a 457(f) plan during the tax year. Amount was included in taxable wages on Form W-2.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="IRS990ScheduleO" softwareId="18007218" softwareVersionNum="2018v3.1">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 6: Explanation of Classes of Members or Shareholder</FormAndLineReferenceDesc>
        <ExplanationTxt>SOUTH TEXAS ELECTRIC COOPERATIVE, INC. (STEC) IS A NOT-FOR-PROFIT COOPERATIVE CORPORATION ORGANIZED FOR THE PURPOSE OF GENERATING AND TRANSMITTING ELECTRIC POWER. STEC HAS EIGHT (8) MEMBER COOPERATIVES. STEC SELLS ITS POWER PURSUANT TO WHOLESALE POWER CONTRACTS WITH ITS MEMBER-CUSTOMERS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 11b: Form 990 Review Process</FormAndLineReferenceDesc>
        <ExplanationTxt>THE RETURN WAS PROVIDED ELECTRONICALLY TO BOARD MEMBERS ALLOWING OPPORTUNITY FOR REVIEW AND DISCUSSION AT A FINANCE AND AUDIT COMMITTEE MEETING AND AT A BOARD MEETING BEFORE FILING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 12c: Explanation of Monitoring and Enforcement of Conflicts</FormAndLineReferenceDesc>
        <ExplanationTxt>SOUTH TEXAS ELECTRIC COOPERATIVE, INC. HAS A CONFLICTS OF INTEREST POLICY. ALL DIRECTORS, OFFICERS, AND KEY EMPLOYEES ARE PROVIDED A COPY OF THIS POLICY WHEN THEY JOIN THE BOARD OF DIRECTORS OR ARE HIRED AND EACH SIGNS A COPY OF THIS POLICY. THE POLICY IS REVIEWED WITH THE BOARD AND KEY EMPLOYEES EACH YEAR. DIRECTORS, OFFICERS, AND KEY EMPLOYEES ARE ANNUALLY REQUIRED TO DISCLOSE ANY INTEREST THAT COULD GIVE RISE TO CONFLICTS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 15a: Compensation Review &amp; Approval Process - CEO, Top Management</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BOARD OF DIRECTORS ANNUALLY ENGAGES A CONSULTANT THAT SPECIALIZES IN EMPLOYMENT AND COMPENSATION AND THEY ALSO REVIEW A COMPENSATION SURVEY PREPARED BY NRECA, THE NATIONAL ASSOCIATION FOR THE ELECTRIC COOPERATIVE. THE BOARD UTILIZES THIS INFORMATION IN ITS DELIBERATION AND DECISION ON COMPENSATION FOR THE CEO (THE GENERAL MANAGER).</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 15b: Compensation Review and Approval Process for Officers and Key Employees</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION ANNUALLY ENGAGES A CONSULTANT THAT SPECIALIZES IN EMPLOYMENT AND COMPENSATION, WHO PROVIDES THE GENERAL MANAGER AND THE BOARD OF DIRECTORS WITH INFORMATION ON SALARY LEVELS AND COMPENSATION APPROPRIATE FOR ALL LEVELS OF STAFF AT THE ORGANIZATION, INCLUDING THE OFFICERS AND KEY EMPLOYEES. THIS INFORMATION IS UTILIZED IN THE DELIBERATIONS AND DECISIONS ON OVERALL COMPENSATION INCREASES FOR OFFICERS AND KEY EMPLOYEES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 19: Other Organization Documents Publicly Available</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FINANCIAL STATEMENTS ARE PRINTED IN THE COMPANY'S ANNUAL REPORT, POSTED ON THE WEBSITE, AND MADE AVAILABLE ON REQUEST. THE ARTICLES OF INCORPORATION ARE PUBLICLY AVAILABLE ON THE TEXAS SECRETARY OF STATE WEBSITE. THE COOPERATIVE'S BYLAWS AND POLICIES ARE NOT PUBLICLY AVAILABLE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Other Changes In Net Assets Or Fund Balances - Other Increases</FormAndLineReferenceDesc>
        <ExplanationTxt>PATRONAGE DIVIDENDS ALLOCATED TO MEMBERS = $32462191</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Other Changes In Net Assets Or Fund Balances - Other Increases</FormAndLineReferenceDesc>
        <ExplanationTxt>TAX OVER BOOK DEPRECIATION = $50127384</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>