<?xml version="1.0" encoding="UTF-8"?><GHG xmlns="http://www.ccdsupport.com/schema/ghg">
<FacilitySiteInformation><FrsID>110043798389</FrsID><OrisCode>1353</OrisCode>

<ReportingYear>2023</ReportingYear>
<FacilitySiteDetails>
<FacilitySite>

<FacilitySiteName>Big Sandy</FacilitySiteName>
</FacilitySite>
<LocationAddress>
<LocationAddressText>23000 HWY 23</LocationAddressText>
<LocalityName>LOUISA</LocalityName>
<StateIdentity>
<StateCode>KY</StateCode>
</StateIdentity>
<AddressPostalCode>41230</AddressPostalCode>
</LocationAddress>
<CogenerationUnitEmissionsIndicator>N</CogenerationUnitEmissionsIndicator>
<PrimaryNAICSCode>221112</PrimaryNAICSCode>
<ParentCompanyDetails>
<ParentCompany>
<ParentCompanyLegalName>AMERICAN ELECTRIC POWER CO INC</ParentCompanyLegalName>
<StreetAddress>1 Riverside Plaza</StreetAddress>
<City>Columbus</City>
<State>OH</State>
<Zip>43215</Zip>
<PercentOwnershipInterest>100</PercentOwnershipInterest>
</ParentCompany>
</ParentCompanyDetails>
<TotalNonBiogenicCO2eFacilitySubpartsCtoJJ massUOM="Metric Tons">640817.5</TotalNonBiogenicCO2eFacilitySubpartsCtoJJ>
<TotalBiogenicCO2FacilitySubpartsCtoJJ massUOM="Metric Tons">0</TotalBiogenicCO2FacilitySubpartsCtoJJ>

<PlantCodeIndicator>Y</PlantCodeIndicator>
<SubPartInformation>
<SubPartC>
<GHGasInfoDetails>
<GHGasName>Carbon Dioxide</GHGasName>
<GHGasQuantity massUOM="Metric Tons">
<CalculatedValue>7454.6</CalculatedValue>
</GHGasQuantity>
</GHGasInfoDetails>
<GHGasInfoDetails>
<GHGasName>Biogenic Carbon dioxide</GHGasName>
<GHGasQuantity massUOM="Metric Tons">
<CalculatedValue>0</CalculatedValue>
</GHGasQuantity>
</GHGasInfoDetails>
<GHGasInfoDetails>
<GHGasName>Methane</GHGasName>
<GHGasQuantity massUOM="Metric Tons">
<CalculatedValue>0.14</CalculatedValue>
</GHGasQuantity>
</GHGasInfoDetails>
<GHGasInfoDetails>
<GHGasName>Nitrous Oxide</GHGasName>
<GHGasQuantity massUOM="Metric Tons">
<CalculatedValue>0.014</CalculatedValue>
</GHGasQuantity>
</GHGasInfoDetails>
<UnitsCDetails>
<UnitIdentification>
<UnitName>GP-Auxiliary Equipment</UnitName>

</UnitIdentification>
<SmallUnitAggregationDetails>
<UseIvtIndicator>N</UseIvtIndicator>
<HighestMaxRatedheatInputCapacity heatUOM="mmBtu/hr">
<MeasureValue>0.0554</MeasureValue>
</HighestMaxRatedheatInputCapacity>
</SmallUnitAggregationDetails>
<SorbentCO2EmissionsQuantity massUOM="Metric Tons">
<CalculatedValue>0</CalculatedValue>
</SorbentCO2EmissionsQuantity>
<CO2EmissionsAllBiomassFuelsCombined massUOM="Metric Tons">
<CalculatedValue>0</CalculatedValue>
</CO2EmissionsAllBiomassFuelsCombined>
<CO2EmissionsAllFossilFuelsCombined massUOM="Metric Tons">
<CalculatedValue>0.3</CalculatedValue>
</CO2EmissionsAllFossilFuelsCombined>
<TierFuelDetails>
<FuelType>Distillate Fuel Oil No. 2</FuelType>
<Tier1FuelDetails>
<TierName>Tier 1 (Equation C-1)</TierName>
<TierMethodologyStartDate>2023-01-01</TierMethodologyStartDate>
<TierMethodologyEndDate>2023-12-31</TierMethodologyEndDate>
<EmissionsDetailsNode>
<TotalCO2CombustionEmissions massUOM="Metric Tons">
<CalculatedValue>0.3</CalculatedValue>
</TotalCO2CombustionEmissions>
<TotalCH4CombustionEmissions massUOM="Metric Tons">
<CalculatedValue>0.00</CalculatedValue>
</TotalCH4CombustionEmissions>
<TotalN2OCombustionEmissions massUOM="Metric Tons">
<CalculatedValue>0.000</CalculatedValue>
</TotalN2OCombustionEmissions>
<CH4EmissionsCO2Equivalent massUOM="Metric Tons">
<CalculatedValue>0</CalculatedValue>
</CH4EmissionsCO2Equivalent>
<N2OEmissionsCO2Equivalent massUOM="Metric Tons">
<CalculatedValue>0</CalculatedValue>
</N2OEmissionsCO2Equivalent>
</EmissionsDetailsNode>
<EquationC1C8Inputs>
<FuelQuantity UOM="gallons/year">30</FuelQuantity>
</EquationC1C8Inputs>
</Tier1FuelDetails>
</TierFuelDetails>
</UnitsCDetails>
<UnitsCDetails>
<UnitIdentification>
<UnitName>Fuel Gas Heater</UnitName>
<UnitType>PRH (Process Heater)</UnitType>
</UnitIdentification>
<IndividualUnitDetails>
<UseIvtIndicator>N (EGU)</UseIvtIndicator>
<MaxRatedheatInputCapacity heatUOM="mmBtu/hr">
<MeasureValue>1.6</MeasureValue>
</MaxRatedheatInputCapacity>
</IndividualUnitDetails>
<SorbentCO2EmissionsQuantity massUOM="Metric Tons">
<CalculatedValue>0</CalculatedValue>
</SorbentCO2EmissionsQuantity>
<CO2EmissionsAllBiomassFuelsCombined massUOM="Metric Tons">
<CalculatedValue>0</CalculatedValue>
</CO2EmissionsAllBiomassFuelsCombined>
<TierFuelDetails>
<FuelType>Natural Gas (Weighted U.S. Average)</FuelType>
<Tier2FuelDetails>
<TierName>Tier 2 (Equation C-2a)</TierName>
<TierMethodologyStartDate>2023-01-01</TierMethodologyStartDate>
<TierMethodologyEndDate>2023-12-31</TierMethodologyEndDate>
<Tier2MonthlyHHVDetails>
<MonthName>January</MonthName>
<HighHeatValue>
<IsSubstitutedIndicator>N</IsSubstitutedIndicator>
</HighHeatValue>
</Tier2MonthlyHHVDetails>
<Tier2MonthlyHHVDetails>
<MonthName>February</MonthName>
<HighHeatValue>
<IsSubstitutedIndicator>N</IsSubstitutedIndicator>
</HighHeatValue>
</Tier2MonthlyHHVDetails>
<Tier2MonthlyHHVDetails>
<MonthName>March</MonthName>
<HighHeatValue>
<IsSubstitutedIndicator>N</IsSubstitutedIndicator>
</HighHeatValue>
</Tier2MonthlyHHVDetails>
<Tier2MonthlyHHVDetails>
<MonthName>April</MonthName>
<HighHeatValue>
<IsSubstitutedIndicator>N</IsSubstitutedIndicator>
</HighHeatValue>
</Tier2MonthlyHHVDetails>
<Tier2MonthlyHHVDetails>
<MonthName>May</MonthName>
<HighHeatValue>
<IsSubstitutedIndicator>N</IsSubstitutedIndicator>
</HighHeatValue>
</Tier2MonthlyHHVDetails>
<Tier2MonthlyHHVDetails>
<MonthName>June</MonthName>
<HighHeatValue>
<IsSubstitutedIndicator>N</IsSubstitutedIndicator>
</HighHeatValue>
</Tier2MonthlyHHVDetails>
<Tier2MonthlyHHVDetails>
<MonthName>July</MonthName>
<HighHeatValue>
<IsSubstitutedIndicator>N</IsSubstitutedIndicator>
</HighHeatValue>
</Tier2MonthlyHHVDetails>
<Tier2MonthlyHHVDetails>
<MonthName>August</MonthName>
<HighHeatValue>
<IsSubstitutedIndicator>N</IsSubstitutedIndicator>
</HighHeatValue>
</Tier2MonthlyHHVDetails>
<Tier2MonthlyHHVDetails>
<MonthName>September</MonthName>
<HighHeatValue>
<IsSubstitutedIndicator>N</IsSubstitutedIndicator>
</HighHeatValue>
</Tier2MonthlyHHVDetails>
<Tier2MonthlyHHVDetails>
<MonthName>October</MonthName>
<HighHeatValue>
<IsSubstitutedIndicator>N</IsSubstitutedIndicator>
</HighHeatValue>
</Tier2MonthlyHHVDetails>
<Tier2MonthlyHHVDetails>
<MonthName>November</MonthName>
<HighHeatValue>
<IsSubstitutedIndicator>N</IsSubstitutedIndicator>
</HighHeatValue>
</Tier2MonthlyHHVDetails>
<Tier2MonthlyHHVDetails>
<MonthName>December</MonthName>
<HighHeatValue>
<IsSubstitutedIndicator>N</IsSubstitutedIndicator>
</HighHeatValue>
</Tier2MonthlyHHVDetails>
<FrequencyofHighHeatValueDetermination>Monthly</FrequencyofHighHeatValueDetermination>
<EmissionsDetailsNode>
<TotalCO2CombustionEmissions massUOM="Metric Tons">
<CalculatedValue>7454.3</CalculatedValue>
</TotalCO2CombustionEmissions>
<TotalCH4CombustionEmissions massUOM="Metric Tons">
<CalculatedValue>0.14</CalculatedValue>
</TotalCH4CombustionEmissions>
<TotalN2OCombustionEmissions massUOM="Metric Tons">
<CalculatedValue>0.014</CalculatedValue>
</TotalN2OCombustionEmissions>
<CH4EmissionsCO2Equivalent massUOM="Metric Tons">
<CalculatedValue>3.5</CalculatedValue>
</CH4EmissionsCO2Equivalent>
<N2OEmissionsCO2Equivalent massUOM="Metric Tons">
<CalculatedValue>4.2</CalculatedValue>
</N2OEmissionsCO2Equivalent>
</EmissionsDetailsNode>
<EquationC2aC9aInputs>
<FuelQuantity UOM="scf/year">117073319</FuelQuantity>
<UseUserHHV>true</UseUserHHV>
<HighHeatValue UOM="mmBtu/scf">0.0012</HighHeatValue>
</EquationC2aC9aInputs>
</Tier2FuelDetails>
</TierFuelDetails>
</UnitsCDetails>
</SubPartC>
<SubPartD>
<GHGasInfoDetails>
<GHGasName>Carbon Dioxide</GHGasName>
<GHGasQuantity massUOM="Metric Tons">
<CalculatedValue>632711.9</CalculatedValue>
</GHGasQuantity>
</GHGasInfoDetails>
<GHGasInfoDetails>
<GHGasName>Biogenic Carbon dioxide</GHGasName>
<GHGasQuantity massUOM="Metric Tons">
<CalculatedValue>0</CalculatedValue>
</GHGasQuantity>
</GHGasInfoDetails>
<GHGasInfoDetails>
<GHGasName>Methane</GHGasName>
<GHGasQuantity massUOM="Metric Tons">
<CalculatedValue>11.74</CalculatedValue>
</GHGasQuantity>
</GHGasInfoDetails>
<GHGasInfoDetails>
<GHGasName>Nitrous Oxide</GHGasName>
<GHGasQuantity massUOM="Metric Tons">
<CalculatedValue>1.174</CalculatedValue>
</GHGasQuantity>
</GHGasInfoDetails>
<UnitDDetails>
<UnitIdentification>
<UnitName>BSU1</UnitName>

<UnitType>Electricity Generator</UnitType>
</UnitIdentification>
<PlantCode>1353</PlantCode>
<Part75Methodology>Appendix G, Equation G-4</Part75Methodology>
<TierMethodologyStartDate>2016-10-01</TierMethodologyStartDate>
<TierMethodologyEndDate>2023-12-31</TierMethodologyEndDate>
<isAcidRainProgramIndicator>Y</isAcidRainProgramIndicator>
<AnnualCO2EmissionsMonitoredLocationShortTons massUOM="Short Tons">
<CalculatedValue>697438.4</CalculatedValue>
</AnnualCO2EmissionsMonitoredLocationShortTons>
<AnnualCO2EmissionsMonitoredLocationMetricTons massUOM="Metric Tons">
<CalculatedValue>632711.9</CalculatedValue>
</AnnualCO2EmissionsMonitoredLocationMetricTons>
<AnnualCO2EmissionsAllBiomassFuelsCombined massUOM="Metric Tons">
<CalculatedValue>0</CalculatedValue>
</AnnualCO2EmissionsAllBiomassFuelsCombined>
<ElectricityFuelDetails>
<FuelType>Natural Gas (Weighted U.S. Average)</FuelType>
<TotalHeatCombustionInput>11735727</TotalHeatCombustionInput>
<CH4EmissionsCO2Equivalent massUOM="Metric Tons">
<CalculatedValue>293.4</CalculatedValue>
</CH4EmissionsCO2Equivalent>
<N2OEmissionsCO2Equivalent massUOM="Metric Tons">
<CalculatedValue>349.7</CalculatedValue>
</N2OEmissionsCO2Equivalent>
</ElectricityFuelDetails>
<AppendixGEquationG4>
<OperatingHoursFuelFlowRate>0</OperatingHoursFuelFlowRate>
<OperatingHoursHHVSubstituted>0</OperatingHoursHHVSubstituted>
</AppendixGEquationG4>
</UnitDDetails>
</SubPartD>
</SubPartInformation>
</FacilitySiteDetails>
<StartDate>2023-01-01</StartDate>
<EndDate>2023-12-31</EndDate>

</FacilitySiteInformation>
</GHG>