Directory of Power Plants in the United States

List of All United States Power Plants

Displaying Results 1 to 100 of 319
Plant NameUtilityLocationBalancing AuthorityAnnual GenerationPlant DateLast UpdateFuel Types
OconeeDuke Energy Carolinas, LLCSeneca, SCDuke Energy Carolinas (DUK)21.5 TWhJun 1973Aug 2024 Nuclear
Okeechobee Clean Energy CenterFlorida Power & Light CoOkeechobee, FLFlorida Power & Light Co. (FPL)11.1 TWhFeb 2019Aug 2024 Natural Gas
Oak Grove (TX)Luminant Generation Company LLCFranklin, TXElectric Reliability Council of Texas, Inc. (ERCO)10.7 TWhMar 2010Aug 2024 Lignite Coal : 95.5% Natural Gas : 4.5%
Odessa-Ector Power PlantLaFrontera Holdings LLCOdessa, TXElectric Reliability Council of Texas, Inc. (ERCO)7.3 TWhJun 2001Aug 2024 Natural Gas
Oregon Clean Energy CenterOregon Clean Energy CenterOregon, OHPJM Interconnection, LLC (PJM)6.6 TWhJun 2017Aug 2024 Natural Gas
Oneta Energy CenterOneta Power LLCBroken Arrow, OKSouthwest Power Pool (SWPP)5.7 TWhJun 2002Aug 2024 Natural Gas
OuachitaEntergy Louisiana LLCSterlington, LAMidcontinent Independent System Operator, Inc. (MISO)4.8 TWhJul 2002Aug 2024 Natural Gas
Ontelaunee Energy CenterOntelaunee Energy CenterReading, PAPJM Interconnection, LLC (PJM)3.8 TWhApr 2002Aug 2024 Natural Gas
Odyssey Energy Altura Cogen, LLCOdyssey Operating ServicesChannelview, TXElectric Reliability Council of Texas, Inc. (ERCO)3.5 TWhOct 1985Aug 2024 Natural Gas
Osprey Energy Center Power PlantDuke Energy Florida, LLCAuburndale, FLTampa Electric Company (TEC)2.5 TWhApr 2004Aug 2024 Natural Gas
Oyster Creek Unit VIIIDow Chemical Company-Oyster Creek VIIIFreeport, TXElectric Reliability Council of Texas, Inc. (ERCO)2.5 TWhSep 1994Aug 2024 Natural Gas
Otay Mesa Generating ProjectOtay Mesa Energy Center LLCSan Diego, CACalifornia Independent System Operator (CISO)2.4 TWhSep 2009Aug 2024 Natural Gas
OaheUSACE-OmahaPierre, SDSouthwest Power Pool (SWPP)2.1 TWhMar 1962Dec 2023 Water
O W SommersCity of San Antonio - (TX)San Antonio, TXElectric Reliability Council of Texas, Inc. (ERCO)1.9 TWhMar 1972Dec 2023 Natural Gas
Orient Wind FarmMidAmerican Energy CoOrient, IAMidcontinent Independent System Operator, Inc. (MISO)1.8 TWhNov 2018Aug 2024 Wind
OttumwaInterstate Power and Light CoOttumwa, IAMidcontinent Independent System Operator, Inc. (MISO)1.4 TWhApr 1981Aug 2024 Subbituminous Coal : 99.3%
Ocean State PowerOcean State Power CoHarrisville, RIISO New England (ISNE)1.3 TWhNov 1990Dec 2023 Natural Gas : 99.6%
Ocean State Power IIOcean State Power IIHarrisville, RIISO New England (ISNE)1.1 TWhSep 1991Dec 2023 Natural Gas : 99.7%
Orlando Cogen LPOrlando CoGen Ltd LPOrlando, FLDuke Energy Florida, Inc. (FPC)1.0 TWhAug 1993Dec 2023 Natural Gas
Oxbow (OR)Idaho Power CoOxbow, ORIdaho Power Company (IPCO)900.1 GWhJun 1961Dec 2023 Water
O'Brien WindMidAmerican Energy CoPrimghar, IAMidcontinent Independent System Operator, Inc. (MISO)834.6 GWhAug 2016Dec 2023 Wind
Odell Wind FarmAlgonquin Power CoMountain Lake, MNMidcontinent Independent System Operator, Inc. (MISO)739.0 GWhJun 2016Dec 2023 Wind
Osborn Wind EnergyOsborn Wind Energy LLCStewartsville, MOSouthwest Power Pool (SWPP)665.4 GWhNov 2016Aug 2024 Wind
OcotilloArizona Public Service CoTempe, AZArizona Public Service Company (AZPS)583.7 GWhFeb 1960Aug 2024 Natural Gas
Old Settler WindOld Settler Wind, LLCFloydada, TXElectric Reliability Council of Texas, Inc. (ERCO)561.5 GWhMar 2017Aug 2024 Wind
Oberon II Solar ProjectIP Oberon II, LLCDesert Center, CACalifornia Independent System Operator (CISO)549.7 GWhAug 2023Aug 2024 Solar
Old Trail Wind FarmOld Trail Wind Farm LLCEllsworth, ILPJM Interconnection, LLC (PJM)541.1 GWhNov 2007Aug 2024 Wind
Oso Grande Wind FarmTucson Electric Power CoMaljamar, NMTucson Electric Power (TEPC)540.3 GWhApr 2021Aug 2024 Wind
Ocotillo Express LLCPattern Operators LPOcotillo, CACalifornia Independent System Operator (CISO)539.0 GWhNov 2012Aug 2024 Wind
Oberon Solar ProjectIP Oberon LLCDesert Center, CACalifornia Independent System Operator (CISO)534.1 GWhAug 2023Aug 2024 Solar
Origin WindEnel Green Power NA, Inc.Hennepin, OKSouthwest Power Pool (SWPP)519.8 GWhOct 2014Dec 2023 Wind
Osage Wind, LLCEnel Green Power NA, Inc.Burbank, OKAssociated Electric Cooperative, Inc. (AECI)511.9 GWhMay 2015Dec 2023 Wind
OxnardProcter&Gamble Paper Products Co-OxnardOxnard, CACalifornia Independent System Operator (CISO)483.7 GWhJun 1982Aug 2024 Natural Gas
Otter Creek Wind Farm LLCAvangrid Renewables LLCRansom, ILPJM Interconnection, LLC (PJM)468.9 GWhFeb 2020Aug 2024 Wind
Oliver Wind III, LLCOliver Wind III, LLCMandan, NDMidcontinent Independent System Operator, Inc. (MISO)418.6 GWhDec 2016Aug 2024 Wind
Osceola Windpower LLCOsceola Windpower LLCHarris, IASouthwest Power Pool (SWPP)402.6 GWhJun 2008Aug 2024 Wind
Orange Cogeneration FacilityNorthern Star Generation Services Co LLCBartow, FLDuke Energy Florida, Inc. (FPC)391.0 GWhJan 1995Dec 2023 Natural Gas
Oleander Power Project LPOleander Holdings LLCCocoa, FLFlorida Power & Light Co. (FPL)383.6 GWhMay 2002Dec 2023 Natural Gas : 99.7%
Old HickoryUSCE-Nashville DistrictHendersonville, TNTennessee Valley Authority (TVA)368.7 GWhMar 1957Dec 2023 Water
Oakfield Wind ProjectOnward EnergyCity of Oakfield, MEISO New England (ISNE)316.5 GWhSep 2015Aug 2024 Wind
Oak Ridge SolarAES Clean EnergyOak Ridge, LAMidcontinent Independent System Operator, Inc. (MISO)313.8 GWhNov 2023Aug 2024 Solar
Oberon IAOberon Solar IAOdessa, TXElectric Reliability Council of Texas, Inc. (ERCO)276.9 GWhJun 2020Aug 2024 Solar
Ohio FallsLouisville Gas & Electric CoShippingport Island, KYLouisville Gas and Electric Company and Kentucky Utilities Company (LGEE)272.0 GWhDec 1927Dec 2023 Water
OzarkUSCE-Little Rock DistrictOzark, ARSouthwestern Power Administration (SPA)253.1 GWhOct 1972Dec 2023 Water
OCI Alamo 7 LLCConsolidated Edison Development Inc.Haskell, TXElectric Reliability Council of Texas, Inc. (ERCO)250.2 GWhJul 2016Dec 2023 Solar
Oak Trail Solar, LLCLeeward Asset Management, LLCMoyock, NCPJM Interconnection, LLC (PJM)242.4 GWhJun 2023Aug 2024 Solar
Onondaga County Resource RecoveryCovanta Onondega LPJamesville, NYNew York Independent System Operator (NYIS)208.8 GWhOct 1994Aug 2024 Non-biogenic Municipal Solid Waste : 54.8% Biogenic Municipal Solid Waste : 44.8%
Oasis WindTerra-Gen Operating Co-WindMojave, CACalifornia Independent System Operator (CISO)205.4 GWhNov 2004Dec 2023 Wind
Osceola Windpower IIOsceola Windpower IIHarris, IAMidcontinent Independent System Operator, Inc. (MISO)198.9 GWhAug 2008Aug 2024 Wind
OCI Alamo 5 LLCConsolidated Edison Development Inc.Uvalde, TXElectric Reliability Council of Texas, Inc. (ERCO)197.1 GWhNov 2015Dec 2023 Solar
OETN1OE_TN1Obion, TNTennessee Valley Authority (TVA)194.4 GWhFeb 2023Aug 2024 Solar
Oxnard Paper MillNew-Indy, Oxnard LLCOxnard, CACalifornia Independent System Operator (CISO)193.1 GWhFeb 1986Aug 2024 Natural Gas
Osage DamUnion Electric Co - (MO)Eldon, MOMidcontinent Independent System Operator, Inc. (MISO)176.1 GWhSep 1931Dec 2023 Water
Otsego Mill Power PlantOtsego Paper IncOtsego, MIMidcontinent Independent System Operator, Inc. (MISO)161.2 GWhOct 1995Dec 2023 Natural Gas
OE_ALDOE_ALDWing, ALSouthern Company Services, Inc. - Trans (SOCO)161.1 GWhMar 2023Aug 2024 Solar
Okeechobee SolarFlorida Power & Light CoVero Beach, FLFlorida Power & Light Co. (FPL)156.1 GWhMar 2020Aug 2024 Solar
Oklahoma Wind Energy CenterFPL Energy Oklahoma Wind LLCWoodward, OKSouthwest Power Pool (SWPP)153.0 GWhSep 2003Dec 2023 Wind
Oak GrovePortland General Electric CoEstacada, ORPortland General Electric Company (PGE)152.1 GWhJul 1924Dec 2023 Water
Orange Blossom Solar CenterFlorida Power & Light CoVero Beach, FLFlorida Power & Light Co. (FPL)150.2 GWhApr 2021Aug 2024 Solar
OREG 1 IncOrmat Nevada IncCulbertson, MTSouthwest Power Pool (SWPP)148.4 GWhJun 2006Aug 2024 Waste Heat
Onion RiverWisconsin Power & Light CoSheboygan Cedar Grove, WIMidcontinent Independent System Operator, Inc. (MISO)147.5 GWhNov 2023Aug 2024 Solar
Ocoee 3Tennessee Valley AuthorityBenton, TNTennessee Valley Authority (TVA)141.4 GWhMar 1943Dec 2023 Water
OU Spirit Wind FarmOklahoma Gas & Electric CoWoodward, OKSouthwest Power Pool (SWPP)141.4 GWhNov 2009Dec 2023 Wind
Oliver DamGeorgia Power CoColumbus, GASouthern Company Services, Inc. - Trans (SOCO)134.4 GWhJun 1959Dec 2023 Water
OE_ESCLOE_ESCLGrants, NMPublic Service Company of New Mexico (PNM)131.6 GWh-Aug 2024 Solar
Oxbow Solar 1Lightsource Renewable Energy Asset Management, LLCNew Roads, LAMidcontinent Independent System Operator, Inc. (MISO)122.7 GWh-Aug 2024 Solar
OrchardFlorida Power & Light CoFt. Pierce, FLFlorida Power & Light Co. (FPL)118.0 GWh-Aug 2024 Solar
OE_GA3Onward EnergyCamilla, GASouthern Company Services, Inc. - Trans (SOCO)116.0 GWhNov 2019Aug 2024 Solar
OE_MS6OE_MS6St.Artesia, MSTennessee Valley Authority (TVA)114.9 GWh-Aug 2024 Solar
Oak SolarOak Solar LLCGaston, NCPJM Interconnection, LLC (PJM)108.3 GWhNov 2023Aug 2024 Solar
OREG 2 IncOrmat Nevada IncCulbertson, MTSouthwest Power Pool (SWPP)107.0 GWhNov 2008Aug 2024 Waste Heat
Old Gold Energy Center, LLCOld Gold Energy Center, LLCJoice, IAMidcontinent Independent System Operator, Inc. (MISO)106.8 GWhSep 2001Dec 2023 Wind
Ormesa IOrmat Nevada IncHoltville, CAImperial Irrigation District (IID)101.7 GWhNov 1986Dec 2023 Geothermal
Oak Glen Wind FarmMinnesota Municipal Power AgnyBlooming Prairie, MNMidcontinent Independent System Operator, Inc. (MISO)95.7 GWhOct 2011Dec 2023 Wind
Ormesa IIOrmat Nevada IncHoltville, CAImperial Irrigation District (IID)95.0 GWhApr 1989Dec 2023 Geothermal
Oak Point CogenChevron Oronite Co LLCBelle Chasse, LAMidcontinent Independent System Operator, Inc. (MISO)92.8 GWhSep 1999Dec 2023 Natural Gas
OCI Alamo Solar I HybridOCI Solar PowerSan Antonio, TXElectric Reliability Council of Texas, Inc. (ERCO)88.3 GWhNov 2013Dec 2023 Solar
Oxford DamDuke Energy Carolinas, LLCConover, NCDuke Energy Carolinas (DUK)87.3 GWhMar 1928Dec 2023 Water
Ocotillo WellsConductive PowerBorrego Springs, CACalifornia Independent System Operator (CISO)86.8 GWhAug 2023Aug 2024 Solar
OE_AZ1Onward EnergySalome, AZWestern Area Power Administration - Desert Southwest Region (WALC)86.4 GWhNov 2019Aug 2024 Solar
Omega Hills Gas RecoveryWM Renewable Energy LLCGermantown, WIMidcontinent Independent System Operator, Inc. (MISO)86.2 GWhNov 1985Aug 2024 Landfill Gas
Ocoee 2Tennessee Valley AuthorityBenton, TNTennessee Valley Authority (TVA)80.7 GWhSep 1913Dec 2023 Water
OCI Alamo 4, LLCConsolidated Edison Development Inc.Brackettville, TXElectric Reliability Council of Texas, Inc. (ERCO)78.9 GWhJul 2014Dec 2023 Solar
Ontario LFGTESeneca Energy IIStanley, NYNew York Independent System Operator (NYIS)78.4 GWhOct 2003Dec 2023 Landfill Gas
Ocean County LandfillEPP Renewable EnergyManchester, NJPJM Interconnection, LLC (PJM)74.4 GWhJan 1997Aug 2024 Landfill Gas
Ocoee 1Tennessee Valley AuthorityBenton, TNTennessee Valley Authority (TVA)69.8 GWhDec 1911Dec 2023 Water
Ormesa IIIOrmat Nevada IncHoltville, CAImperial Irrigation District (IID)68.5 GWhApr 1989Dec 2023 Geothermal
Oak Tree EnergyConsolidated Edison Development Inc.Clark, SDSouthwest Power Pool (SWPP)66.7 GWhNov 2014Dec 2023 Wind
Orion III Solar ProjectBen Milam Solar 3 LLCBuckholts, TXElectric Reliability Council of Texas, Inc. (ERCO)65.9 GWh-Aug 2024 Solar
Oxbow CreekOxbow Creek Energy LLCFactoryville, PAPJM Interconnection, LLC (PJM)62.4 GWhNov 2019Dec 2023 Natural Gas
Oberon IBOberon Solar IBOdessa, TXElectric Reliability Council of Texas, Inc. (ERCO)56.3 GWhJun 2020Aug 2024 Solar
Ozark BeachEmpire District Electric CoForsyth, MOSouthwest Power Pool (SWPP)55.7 GWhMay 1931Dec 2023 Water
Orion I Solar ProjectBen Milam Solar 1 LLCBurlington, TXElectric Reliability Council of Texas, Inc. (ERCO)54.6 GWh-Aug 2024 Solar
Owatonna Energy StationSouthern Minnesota Mun P AgnyOwatonna, MNMidcontinent Independent System Operator, Inc. (MISO)53.5 GWhFeb 2018Dec 2023 Natural Gas
Oasis AltaTerra-Gen Operating Co-WindMojave, CACalifornia Independent System Operator (CISO)45.4 GWhMar 2021Dec 2023 Wind
Ormond BeachOrmond Beach Power, LLCOxnard, CACalifornia Independent System Operator (CISO)44.9 GWhJul 1971Aug 2024 Natural Gas
Otter Creek Ethanol Poet - AshtonOtter Creek Ethanol LLC - Poet AshtonAshton, IAMidcontinent Independent System Operator, Inc. (MISO)44.8 GWhFeb 2004Aug 2024 Natural Gas
OsawatomieEvergy MetroMiami, KSSouthwest Power Pool (SWPP)44.0 GWhMay 2003Dec 2023 Natural Gas
Orchard Ranch SolarOrchard Ranch Solar, LLCOrchard, IDIdaho Power Company (IPCO)42.8 GWhFeb 2017Aug 2024 Solar
Oxy Renewable Energy - GoldsmithOxy Renewable Energy LLCGoldsmith, TXElectric Reliability Council of Texas, Inc. (ERCO)42.7 GWhApr 2020Dec 2023 Solar

Summary of Power Plants By State

Figures are based on August 2024 generation numbers.
StateRankActive PlantsAug 2024 Generation
Alabama# 77814,073.11 GWh
Alaska# 48147631.71 GWh
Arizona# 1016112,447.73 GWh
Arkansas# 23776,473.81 GWh
California# 41,66622,299.47 GWh
Colorado# 282775,476.67 GWh
Connecticut# 331594,351.57 GWh
Delaware# 4931481.79 GWh
District of Columbia# 511219.18 GWh
Florida# 228627,339.08 GWh
Georgia# 625114,863.07 GWh
Hawaii# 4769841.39 GWh
Idaho# 431421,655.52 GWh
Illinois# 533517,196.16 GWh
Indiana# 182029,001.13 GWh
Iowa# 262835,529.62 GWh
Kansas# 311655,363.63 GWh
Kentucky# 21556,964.00 GWh
Louisiana# 148210,133.66 GWh
Maine# 451621,185.43 GWh
Maryland# 381853,346.65 GWh
Massachusetts# 416141,896.47 GWh
Michigan# 1227412,135.86 GWh
Minnesota# 277485,511.98 GWh
Mississippi# 19557,436.42 GWh
Missouri# 201267,051.26 GWh
StateRankActive PlantsAug 2024 Generation
Montana# 40702,306.38 GWh
Nebraska# 361253,559.93 GWh
Nevada# 321104,699.98 GWh
New Hampshire# 42601,808.14 GWh
New Jersey# 253875,633.45 GWh
New Mexico# 391393,198.26 GWh
New York# 1184812,289.60 GWh
North Carolina# 989313,559.75 GWh
North Dakota# 35593,641.88 GWh
Ohio# 819013,652.00 GWh
Oklahoma# 1513010,062.87 GWh
Oregon# 292625,448.37 GWh
Pennsylvania# 324623,205.63 GWh
Rhode Island# 46971,061.17 GWh
South Carolina# 162039,629.88 GWh
South Dakota# 44531,603.17 GWh
Tennessee# 22876,912.16 GWh
Texas# 179758,529.53 GWh
Utah# 371223,440.26 GWh
Vermont# 50114207.44 GWh
Virginia# 1321310,408.51 GWh
Washington# 171389,091.93 GWh
West Virginia# 30365,412.86 GWh
Wisconsin# 242306,416.93 GWh
Wyoming# 34703,868.32 GWh