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      <MissionDesc>CHAMPION WATER POWER AS AMERICA'S PREMIER CARBON-FREE RENEWABLE ENERGY RESOURCE. INFORM PUBLIC POLICY TO PROTECT, ENHANCE AND EXPAND WATER POWER WITHIN THE U.S. ELECTRIC SYSTEM. SHARE TECHNOLOGICAL ADVANCEMENT AND ENCOURAGE OPERATIONAL EXCELLENCE AMONG OUR MEMBERS.HYDROPOWER, AMERICA'S FIRST RENEWABLE ENERGY RESOURCE, PROVIDES POWER TO APPROXIMATELY 30 MILLION AMERICANS. WATER POWER IN ALL ITS FORMS (INCLUDING HYDROPOWER, PUMPED STORAGE, AND MARINE ENERGY) PROVIDES OVER 100 GW OF RELIABLE, FLEXIBLE, CARBON-FREE ELECTRICITY. AN ADDITIONAL 50 GWS OF GENERATION IS POSSIBLE - LARGELY USING EXISTING INFRASTRUCTURE - THROUGH UPGRADES, NEW GENERATION AT EXISTING NON-POWERED DAMS, AND NEW CLOSED-LOOP PUMPED STORAGE. IN 2023, NHA MADE SIGNIFICANT PROGRESS IN ENHANCING NHA'S VALUE PROPOSITION IN 3 AREAS AS DESCRIBED IN PART III.</MissionDesc>
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        <Desc>PROVIDING TECHNICAL INSIGHTS AND PUBLIC AFFAIRSPROVIDING TECHNICAL INSIGHTS AND PUBLIC AFFAIRS - TO PROVIDE MEMBERS INSIGHTS ABOUT TIMELY POLICY AND INDUSTRY DEVELOPMENTS, NHA'S TECHNICAL COMMITTEES MET REGULARLY THROUGHOUT THE YEAR, FACILITATED BEST PRACTICE EXCHANGES, AND HOSTED INFORMATIVE WEBINARS AND OTHER TRAINING SESSIONS. NHA TECHNICAL COMMITTEES INCLUDED THE HYDRAULIC POWER COMMITTEE (INCLUDING ITS OPERATIONAL EXCELLENCE PROGRAM AND DAM SAFETY SUBCOMMITTEE), THE MARINE ENERGY COMMITTEE, THE MARKETS COMMITTEE, THE SMALL HYDROPOWER COMMITTEE, THE WATERPOWER INNOVATION COUNCIL, AND THE CEO COUNCIL. NHA ALSO ACTED AS BOTH A VEHICLE FOR CONVEYING THE INDUSTRY'S MESSAGES TO KEY AUDIENCES AND AS A NATIONAL CLEARINGHOUSE FOR INFORMATION ABOUT HYDROPOWER AND RELATED ENERGY ISSUES. IN CONSULTATION WITH THE PUBLIC AFFAIRS COMMITTEE, NHA WORKED TO PROVIDE THE INDUSTRY'S PERSPECTIVE AND SHAPE NATIONAL AND REGIONAL PRESS; AND PARTNERED WITH VARIOUS ORGANIZATIONS TO PUBLICIZE NATIONAL HYDROPOWER DAY.NHA ALSO EXPANDED ITS DIGITAL AD CAMPAIGN AIMED AT EDUCATING YOUNGER AMERICANS ABOUT THE BENEFITS OF HYDROPOWER.</Desc>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>MEGAN NESBITT</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>CHRIS ROUSSEAU</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
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        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>ROMAIN PELLEGRINO</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
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        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>CHARLES SENSIBA</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>PAMELA SULLIVAN</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
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        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>MARY GAIL SULLIVAN</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>JUSTIN TRUDELL</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>HEIDI WAHTO</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>RICH WALLEN</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>MALCOLM WOOLF</PersonNm>
        <TitleTxt>PRESIDENT AND CEO</TitleTxt>
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        <ReportableCompFromOrgAmt>485952</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>JAMES H HANCOCK JR</PersonNm>
        <TitleTxt>GENERAL COUNSEL</TitleTxt>
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        <OfficerInd>X</OfficerInd>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>MARLA J BARNES</PersonNm>
        <TitleTxt>VP MEMBER/INDUSTRY ENGAGEMENTS</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>MICHAEL D PURDIE</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>FRANCHESCA L BLANCO</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>JOSEPH LOSASSO DIR OF CORP</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>KIMBERLY COSTNER</PersonNm>
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      <IndivRcvdGreaterThan100KCnt>6</IndivRcvdGreaterThan100KCnt>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>BULLY PULPIT INTERACTIVE</BusinessNameLine1Txt>
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        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>1445 NEW YORK AVE NW 5TH FLOOR</AddressLine1Txt>
            <CityNm>WASHINGTON</CityNm>
            <StateAbbreviationCd>DC</StateAbbreviationCd>
            <ZIPCd>20005</ZIPCd>
          </USAddress>
        </ContractorAddress>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>BRIGHT AV</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>15181 SPRINGDALE ST</AddressLine1Txt>
            <CityNm>HUNTINGTON BEACH</CityNm>
            <StateAbbreviationCd>CA</StateAbbreviationCd>
            <ZIPCd>92649</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>EVENTS CONSULTANT</ServicesDesc>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>TROUTMAN PEPPER HAMILTON SANDERS LLP</BusinessNameLine1Txt>
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        <ContractorAddress>
          <USAddress>
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            <StateAbbreviationCd>GA</StateAbbreviationCd>
            <ZIPCd>30308</ZIPCd>
          </USAddress>
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      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>DAVID JAMES GROUP</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>1 TRANS AM PLAZA DRIVE 300</AddressLine1Txt>
            <CityNm>OAKBROOK TERRACE</CityNm>
            <StateAbbreviationCd>IL</StateAbbreviationCd>
            <ZIPCd>60181</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>MARKETING CONSULTANT</ServicesDesc>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>SB EXPOS AND EVENTS</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>6704 MALLARD RD</AddressLine1Txt>
            <CityNm>BALTIMORE</CityNm>
            <StateAbbreviationCd>MD</StateAbbreviationCd>
            <ZIPCd>21220</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>EVENTS CONSULTANT</ServicesDesc>
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      <ProgramServiceRevenueGrp>
        <Desc>MEMBERSHIP DUES</Desc>
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        <RelatedOrExemptFuncIncomeAmt>3561038</RelatedOrExemptFuncIncomeAmt>
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      <ProgramServiceRevenueGrp>
        <Desc>CONFERENCE REVENUE</Desc>
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      <ProgramServiceRevenueGrp>
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        <TotalRevenueColumnAmt>-10916</TotalRevenueColumnAmt>
        <ExclusionAmt>-10916</ExclusionAmt>
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        <BusinessCd>900099</BusinessCd>
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        <ExclusionAmt>12000</ExclusionAmt>
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      <OtherRevenueMiscGrp>
        <Desc>JOB BOARD</Desc>
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        <UnrelatedBusinessRevenueAmt>10772</UnrelatedBusinessRevenueAmt>
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      <OtherRevenueMiscGrp>
        <Desc>MISCELLANEOUS</Desc>
        <BusinessCd>900099</BusinessCd>
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        <ExclusionAmt>2201</ExclusionAmt>
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        <UnrelatedBusinessRevenueAmt>10772</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>2420996</ExclusionAmt>
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      <InfoInScheduleOPartIXInd>X</InfoInScheduleOPartIXInd>
      <CompCurrentOfcrDirectorsGrp>
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      </CompCurrentOfcrDirectorsGrp>
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      <OtherEmployeeBenefitsGrp>
        <TotalAmt>138826</TotalAmt>
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      <PayrollTaxesGrp>
        <TotalAmt>160875</TotalAmt>
      </PayrollTaxesGrp>
      <FeesForServicesLegalGrp>
        <TotalAmt>144107</TotalAmt>
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      <FeesForServicesAccountingGrp>
        <TotalAmt>176544</TotalAmt>
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      <FeesForServicesOtherGrp>
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      <AdvertisingGrp>
        <TotalAmt>680814</TotalAmt>
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      <OfficeExpensesGrp>
        <TotalAmt>125480</TotalAmt>
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      <InformationTechnologyGrp>
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      <OccupancyGrp>
        <TotalAmt>126572</TotalAmt>
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      <TravelGrp>
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      <ConferencesMeetingsGrp>
        <TotalAmt>1140362</TotalAmt>
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      <InsuranceGrp>
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      <OtherExpensesGrp>
        <Desc>CEO PROGRAM FUND</Desc>
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        <Desc>MEMBERSHIP DUES</Desc>
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        <EOYAmt>196217</EOYAmt>
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        <EOYAmt>123669</EOYAmt>
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        <EOYAmt>40514</EOYAmt>
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        <EOYAmt>4531218</EOYAmt>
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        <EOYAmt>1845297</EOYAmt>
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      <DonorRestrictionNetAssetsGrp>
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        <EOYAmt>0</EOYAmt>
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        <EOYAmt>4531218</EOYAmt>
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      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
      <FSAuditedInd>1</FSAuditedInd>
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        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
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      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
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    <IRS990ScheduleC documentId="RetDoc1039700001">
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      <OnlyInHouseLobbyingInd>0</OnlyInHouseLobbyingInd>
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    <IRS990ScheduleD documentId="RetDoc1040000001">
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        <DepreciationAmt>78945</DepreciationAmt>
        <BookValueAmt>29310</BookValueAmt>
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      <OtherLandBuildingsGrp>
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        <DepreciationAmt>250555</DepreciationAmt>
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      <OtherSecuritiesGrp>
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        <BookValueAmt>2419106</BookValueAmt>
        <MethodValuationCd>F</MethodValuationCd>
      </OtherSecuritiesGrp>
      <OtherSecuritiesGrp>
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        <BookValueAmt>5322</BookValueAmt>
        <MethodValuationCd>C</MethodValuationCd>
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      <TotalBookValueSecuritiesAmt>2424428</TotalBookValueSecuritiesAmt>
      <OtherAssetsOrgGrp>
        <Desc>DEPOSITS</Desc>
        <BookValueAmt>25257</BookValueAmt>
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      <OtherAssetsOrgGrp>
        <Desc>RIGHT OF USE ASSET OPERATING</Desc>
        <BookValueAmt>877125</BookValueAmt>
      </OtherAssetsOrgGrp>
      <TotalBookValueOtherAssetsAmt>902382</TotalBookValueOtherAssetsAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>DEFERRED RENT AND LEASE INCENTIVE</Desc>
        <Amt>1021895</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>DEFERRED COMPENSATION LIABILITY</Desc>
        <Amt>46141</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>1068036</TotalLiabilityAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>7127151</TotalRevEtcAuditedFinclStmtAmt>
      <NetUnrealizedGainsInvstAmt>34962</NetUnrealizedGainsInvstAmt>
      <DonatedServicesAndUseFcltsAmt>25000</DonatedServicesAndUseFcltsAmt>
      <RevenueNotReportedAmt>59962</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>7067189</RevenueSubtotalAmt>
      <RevenueNotReportedFinclStmtAmt>0</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>7067189</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>6677957</TotExpnsEtcAuditedFinclStmtAmt>
      <DonatedServicesUseFcltsAmt>25000</DonatedServicesUseFcltsAmt>
      <ExpensesNotReportedAmt>25000</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>6652957</ExpensesSubtotalAmt>
      <ExpensesNotRptFinclStmtAmt>0</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>6652957</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>FOR THE YEARS ENDED DECEMBER 31, 2023, MANAGEMENT DID NOT IDENTIFY ANY UNCERTAINTY IN INCOME TAXES REQUIRING RECOGNITION OR DISCLOSURE IN THESE FINANCIAL STATEMENTS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleJ documentId="RetDoc1042400001">
      <CompensationCommitteeInd>X</CompensationCommitteeInd>
      <CompensationSurveyInd>X</CompensationSurveyInd>
      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>0</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>0</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>0</EquityBasedCompArrngmInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>MALCOLM WOOLF</PersonNm>
        <TitleTxt>PRESIDENT AND CEO</TitleTxt>
        <BaseCompensationFilingOrgAmt>412636</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>73316</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>42300</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>1895</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>530147</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>MARLA J BARNES</PersonNm>
        <TitleTxt>VP MEMBER/INDUSTRY ENGAGEMENTS</TitleTxt>
        <BaseCompensationFilingOrgAmt>162552</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>20000</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>11502</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
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        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
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        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>MICHAEL D PURDIE</PersonNm>
        <TitleTxt>DIRETOR OF REG. AFFAIRS AND MARKETS</TitleTxt>
        <BaseCompensationFilingOrgAmt>146988</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>16000</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>9614</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>25016</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>197618</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>FRANCHESCA L BLANCO</PersonNm>
        <TitleTxt>DIRECTOR OF MEETINGS AND EVENTS</TitleTxt>
        <BaseCompensationFilingOrgAmt>126341</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>15000</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>8811</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>14989</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>165141</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>NHA'S MEMBERSHIP CONSISTS OF MORE THAN 350 ORGANIZATIONS INCLUDING PUBLIC UTILITIES, INVESTOR OWNED UTILITIES, INDEPENDENT POWER PRODUCERS, EQUIPMENT MANUFACTURERS, ENVIRONMENTAL ENGINEERING CONSULTANTS AND ATTORNEYS SPANNING THE BREADTH OF THE CONVENTIONAL INDUSTRY AND NEW EMERGING WATERPOWER TECHNOLOGIES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ELECTION OF OFFICERS SHALL TAKE PLACE AT THE WINTER BOARD OF DIRECTORS MEETING. A MAJORITY VOTE OF A QUORUM OF THE DIRECTORS PRESENT SHALL CONSTITUTE AN ELECTION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>NHA'S DRAFT FEDERAL FORM 990 IS REVIEWED BY THE PRESIDENT AND CEO WITH CONCURRENCE OF THE ELECTED TREASURER PRIOR TO FILING WITH THE INTERNAL REVENUE SERVICE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>NHA HAS A CONFLICT OF INTEREST POLICY WHICH ALL BOARD MEMBERS ARE SUBJECT TO. ALL BOARD MEMBERS OF NHA ARE NOTIFIED OF THE CONFLICT OF INTEREST POLICY AT TIME OF THEIR ELECTION AND THEY ARE REQUIRED TO CONFIRM AGREEMENT WITH THE TERMS ON AN ANNUAL BASIS. ESSENTIALLY, IT REQUIRES THAT SHOULD A CONFLICT OF INTEREST ARISE WITH ANY MEMBER OF THE BOARD OF DIRECTORS, THAT MEMBER IS REQUIRED TO DISCLOSE IT TO THE FULL BOARD OF DIRECTORS FOR TOTAL TRANSPARENCY. THE POLICY IS LIMITED TO FULL DISCLOSE, NOT WHAT ACTION MUST BE TAKEN IN CONSIDERING THE CONFLICT. THE BOARD OF DIRECTORS HAS THE OPTION AT THAT POINT TO ACT AS IT SEES FIT TO EITHER LAY CONDITIONS ON THE ACTION, OR CONTINUE AS THE CONFLICT HAS BEEN FULLY VETTED IN DISCUSSION, OR DENY THE ACTION BEING REQUESTED THAT LED TO THE CONFLICT.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15A</FormAndLineReferenceDesc>
        <ExplanationTxt>COMPENSATION FOR NHA'S PRESIDENT AND CEO IS BASED ON PERFORMANCE REVIEW WHICH IS CONDUCTED BY THE ELECTED CHAIRMAN OF THE BOARD WITH THE CONCURRENCE OF THE EXECUTIVE COMMITTEE AND THEN REPORTED TO THE BOARD OF DIRECTORS FOR INPUT AND CONCURRENCE. A COMPENSATION COMMITTEE PERIODICALLY EVALUATES THE SALARY AND BENEFITS PLAN TO DETERMINE ITS COMPETITIVENESS WITH COMPARABLE POSITIONS WITHIN THE REGION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>NHA MAKES ITS GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY, AND FINANCIAL STATEMENTS AVAILABLE TO THE PUBLIC UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART IX, LINE 11G</FormAndLineReferenceDesc>
        <ExplanationTxt>CONSULTING FEES 1,051,901. PAYROLL PROCESSING 8,150. OUTSIDE SERVICES 26,315. PUBLIC AFFAIRS CAMPAIGN 836.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>