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
Osage (IA)City of Osage - (IA)Osage, IAMidcontinent Independent System Operator, Inc. (MISO)3.8 GWhAug 1963Dec 2023 Wind : 73.8% Solar : 26.2%
Oak Tree EnergyConsolidated Edison Development Inc.Clark, SDSouthwest Power Pool (SWPP)66.7 GWhNov 2014Dec 2023 Wind
Orchard Windfarm 4, LLCOrchard Windfarm, LLCLexington, ORPacifiCorp West (PACW)25.6 GWhNov 2020Dec 2023 Wind
Oregon Trail Wind ParkIdaho Wind Partners 1 LLCHagerman, IDIdaho Power Company (IPCO)34.6 GWhDec 2010Dec 2023 Wind
Oregon Trail Windfarm LLCEcho 1Echo, ORPacifiCorp West (PACW)21.2 GWhMay 2009Dec 2023 Wind
Orient Wind FarmMidAmerican Energy CoOrient, IAMidcontinent Independent System Operator, Inc. (MISO)1.8 TWhNov 2018Aug 2024 Wind
Origin WindEnel Green Power NA, Inc.Hennepin, OKSouthwest Power Pool (SWPP)519.8 GWhOct 2014Dec 2023 Wind
Odin Wind Farm LLCNRG Energy Gas & Wind Holdings IncMountainlake, MNMidcontinent Independent System Operator, Inc. (MISO)34.2 GWhApr 2008Dec 2023 Wind
Odell Wind FarmAlgonquin Power CoMountain Lake, MNMidcontinent Independent System Operator, Inc. (MISO)739.0 GWhJun 2016Dec 2023 Wind
Ocotillo WindpowerDuke Energy Renewables ServicesForsan, TXElectric Reliability Council of Texas, Inc. (ERCO)18.4 GWhAug 2008Dec 2023 Wind
Ocotillo Express LLCPattern Operators LPOcotillo, CACalifornia Independent System Operator (CISO)539.0 GWhNov 2012Aug 2024 Wind
OU Spirit Wind FarmOklahoma Gas & Electric CoWoodward, OKSouthwest Power Pool (SWPP)141.4 GWhNov 2009Dec 2023 Wind
O'Brien WindMidAmerican Energy CoPrimghar, IAMidcontinent Independent System Operator, Inc. (MISO)834.6 GWhAug 2016Dec 2023 Wind
Otter Creek Wind Farm LLCAvangrid Renewables LLCRansom, ILPJM Interconnection, LLC (PJM)468.9 GWhFeb 2020Aug 2024 Wind
Oakfield Wind ProjectOnward EnergyCity of Oakfield, MEISO New England (ISNE)316.5 GWhSep 2015Aug 2024 Wind
Osage Wind, LLCEnel Green Power NA, Inc.Burbank, OKAssociated Electric Cooperative, Inc. (AECI)511.9 GWhMay 2015Dec 2023 Wind
Oasis AltaTerra-Gen Operating Co-WindMojave, CACalifornia Independent System Operator (CISO)45.4 GWhMar 2021Dec 2023 Wind
Oasis WindTerra-Gen Operating Co-WindMojave, CACalifornia Independent System Operator (CISO)205.4 GWhNov 2004Dec 2023 Wind
Osborn Wind EnergyOsborn Wind Energy LLCStewartsville, MOSouthwest Power Pool (SWPP)665.4 GWhNov 2016Aug 2024 Wind
Osceola Windpower IIOsceola Windpower IIHarris, IAMidcontinent Independent System Operator, Inc. (MISO)198.9 GWhAug 2008Aug 2024 Wind
Osceola Windpower LLCOsceola Windpower LLCHarris, IASouthwest Power Pool (SWPP)402.6 GWhJun 2008Aug 2024 Wind
Oso Grande Wind FarmTucson Electric Power CoMaljamar, NMTucson Electric Power (TEPC)540.3 GWhApr 2021Aug 2024 Wind
Orchard Windfarm 2, LLCOrchard Windfarm, LLCLexington, ORBonneville Power Administration (BPAT)25.6 GWhNov 2020Dec 2023 Wind
Orchard Windfarm 3, LLCOrchard Windfarm, LLCLexington, ORBonneville Power Administration (BPAT)25.4 GWhNov 2020Dec 2023 Wind
Oliver Wind III, LLCOliver Wind III, LLCMandan, NDMidcontinent Independent System Operator, Inc. (MISO)418.6 GWhDec 2016Aug 2024 Wind
Optimum Wind 3 LLCOptimum Wind 3 LLCNevada, IAMidcontinent Independent System Operator, Inc. (MISO)7.1 GWhFeb 2017Dec 2023 Wind
Optimum Wind 4 LLCOptimum Wind 4 LLCNevada, IAMidcontinent Independent System Operator, Inc. (MISO)8.3 GWhFeb 2017Dec 2023 Wind
Oak Creek Energy Systems ITerra-Gen Operating Co-WindMojave, CACalifornia Independent System Operator (CISO)37.8 GWhMay 1982Dec 2023 Wind
Oak Glen Wind FarmMinnesota Municipal Power AgnyBlooming Prairie, MNMidcontinent Independent System Operator, Inc. (MISO)95.7 GWhOct 2011Dec 2023 Wind
Optimum Wind 5 LLCOptimum Wind 5 LLCNevada, IAMidcontinent Independent System Operator, Inc. (MISO)8.2 GWhFeb 2017Dec 2023 Wind
Optimum Wind 6 LLCOptimum Wind 6 LLCNevada, IAMidcontinent Independent System Operator, Inc. (MISO)9.2 GWhFeb 2017Dec 2023 Wind
Old Trail Wind FarmOld Trail Wind Farm LLCEllsworth, ILPJM Interconnection, LLC (PJM)541.1 GWhNov 2007Aug 2024 Wind
Optimum Wind 7 LLCOptimum Wind 7 LLCNevada, IAMidcontinent Independent System Operator, Inc. (MISO)10.1 GWhFeb 2017Dec 2023 Wind
Old Settler WindOld Settler Wind, LLCFloydada, TXElectric Reliability Council of Texas, Inc. (ERCO)561.5 GWhMar 2017Aug 2024 Wind
Old Gold Energy Center, LLCOld Gold Energy Center, LLCJoice, IAMidcontinent Independent System Operator, Inc. (MISO)106.8 GWhSep 2001Dec 2023 Wind
Oklahoma Wind Energy CenterFPL Energy Oklahoma Wind LLCWoodward, OKSouthwest Power Pool (SWPP)153.0 GWhSep 2003Dec 2023 Wind
Orchard Windfarm 1, LLCOrchard Windfarm, LLCLexington, ORPacifiCorp West (PACW)25.5 GWhNov 2020Dec 2023 Wind
OswegatchieErie Boulevard Hydropower LPEdwards, NYNew York Independent System Operator (NYIS)8.8 GWhJul 2002Dec 2023 Water
Oak GrovePortland General Electric CoEstacada, ORPortland General Electric Company (PGE)152.1 GWhJul 1924Dec 2023 Water
Oswego Falls EastErie Boulevard Hydropower LPFulton, NYNew York Independent System Operator (NYIS)24.2 GWhDec 1913Dec 2023 Water
Oswego Falls WestErie Boulevard Hydropower LPFulton, NYNew York Independent System Operator (NYIS)8.4 GWhDec 1913Dec 2023 Water
Oxford DamDuke Energy Carolinas, LLCConover, NCDuke Energy Carolinas (DUK)87.3 GWhMar 1928Dec 2023 Water
Otis HydroEagle Creek Renewable Energy, LLCLivermore Falls, MEISO New England (ISNE)31.2 GWhDec 1984Aug 2024 Water
Oxbow (OR)Idaho Power CoOxbow, ORIdaho Power Company (IPCO)900.1 GWhJun 1961Dec 2023 Water
Ottauquechee HydroGreen Mountain Power CorpN. Hartland, VTISO New England (ISNE)3.5 GWhMar 1983Dec 2023 Water
Oxbow (CA)Placer County Water AgencyForesthill, CACalifornia Independent System Operator (CISO)13.8 GWhSep 1966Dec 2023 Water
Oakdale Power StationMassachusetts Water Res AuthWest Boylston, MAISO New England (ISNE)12.0 GWhApr 1951Dec 2023 Water
OakdaleNorthern Indiana Pub Serv CoMonticello, INMidcontinent Independent System Operator, Inc. (MISO)20.0 GWhOct 1925Dec 2023 Water
Ottumwa City ofOttumwa City ofOttumwa, IAMidcontinent Independent System Operator, Inc. (MISO)5.3 GWhJul 1931Dec 2023 Water
Owyhee Dam Power ProjectOwyhee Irrigation DistrictNyssa, ORIdaho Power Company (IPCO)15.2 GWhJul 1985Oct 2023 Water
Ozark BeachEmpire District Electric CoForsyth, MOSouthwest Power Pool (SWPP)55.7 GWhMay 1931Dec 2023 Water
OzarkUSCE-Little Rock DistrictOzark, ARSouthwestern Power Administration (SPA)253.1 GWhOct 1972Dec 2023 Water
OaheUSACE-OmahaPierre, SDSouthwest Power Pool (SWPP)2.1 TWhMar 1962Dec 2023 Water
Orono Hydro StationBrookfield Black Bear Hydro, LLCOrono, MEISO New England (ISNE)11.6 GWhDec 2008Dec 2023 Water
Ocoee 3Tennessee Valley AuthorityBenton, TNTennessee Valley Authority (TVA)141.4 GWhMar 1943Dec 2023 Water
Orchard Avenue 1Yakima-Tieton Irrigation DistYakima, WAPacifiCorp West (PACW)2.6 GWhFeb 1987Oct 2023 Water
Orono BBrookfield Black Bear Hydro, LLCOrono, MEISO New England (ISNE)25.5 GWhOct 2013Dec 2023 Water
Ocoee 2Tennessee Valley AuthorityBenton, TNTennessee Valley Authority (TVA)80.7 GWhSep 1913Dec 2023 Water
Ocoee 1Tennessee Valley AuthorityBenton, TNTennessee Valley Authority (TVA)69.8 GWhDec 1911Dec 2023 Water
Osage DamUnion Electric Co - (MO)Eldon, MOMidcontinent Independent System Operator, Inc. (MISO)176.1 GWhSep 1931Dec 2023 Water
OgdensburgAmpersand Ogdensburg Hydro, LLCOgdensburg, NYNew York Independent System Operator (NYIS)4.0 GWhNov 1987Dec 2023 Water
Oliver DamGeorgia Power CoColumbus, GASouthern Company Services, Inc. - Trans (SOCO)134.4 GWhJun 1959Dec 2023 Water
Ohio FallsLouisville Gas & Electric CoShippingport Island, KYLouisville Gas and Electric Company and Kentucky Utilities Company (LGEE)272.0 GWhDec 1927Dec 2023 Water
Opal Springs HydroDeschutes Valley Water DistrictCulver, ORPacifiCorp West (PACW)24.2 GWhDec 1984Dec 2023 Water
Old HickoryUSCE-Nashville DistrictHendersonville, TNTennessee Valley Authority (TVA)368.7 GWhMar 1957Dec 2023 Water
OlsenOlsen Power PartnersWhitmore, CACalifornia Independent System Operator (CISO)18.4 GWhDec 1989Dec 2023 Water
Oconto Falls LowerEagle Creek Renewable Energy, LLCOconto Falls, WIMidcontinent Independent System Operator, Inc. (MISO)4.4 GWhDec 1970Dec 2023 Water
OneidaPacifiCorpRiverdale, IDPacifiCorp East (PACE)42.4 GWhJun 1915Dec 2023 Water
Oconto Falls UpperEagle Creek Renewable Energy, LLCOconto Falls, WIMidcontinent Independent System Operator, Inc. (MISO)3.2 GWhDec 1917Dec 2023 Water
OREG 2 IncOrmat Nevada IncCulbertson, MTSouthwest Power Pool (SWPP)107.0 GWhNov 2008Aug 2024 Waste Heat
OREG 3 IncOrmat Nevada IncTrimont, MNMidcontinent Independent System Operator, Inc. (MISO)35.8 GWhJul 2010Aug 2024 Waste Heat
OREG 4 PeetzOrmat Nevada IncPeetz, COWestern Area Power Administration - Rocky Mountain Region (WACM)3.2 GWhFeb 2009May 2024 Waste Heat
OREG 1 IncOrmat Nevada IncCulbertson, MTSouthwest Power Pool (SWPP)148.4 GWhJun 2006Aug 2024 Waste Heat
OttumwaInterstate Power and Light CoOttumwa, IAMidcontinent Independent System Operator, Inc. (MISO)1.4 TWhApr 1981Aug 2024 Subbituminous Coal : 99.3%
Orange Coast College PH2 Solar ProjectSolar Star Coastal Pirate, LLCCosta Mesa, CACalifornia Independent System Operator (CISO)4.6 GWhApr 2022Dec 2023 Solar : 88.9% Electricity used for energy storage : 11.1%
Onondaga County - Metro Water BoardTesla Inc.Clay, NYNew York Independent System Operator (NYIS)1.0 GWhJan 2016Dec 2023 Solar
Onondaga County - Oak Orchard WWTPTesla Inc.Clay, NYNew York Independent System Operator (NYIS)2.2 GWhOct 2017Dec 2023 Solar
Onset East Community Solar FacilityKearsarge Onset LLCWareham, MAISO New England (ISNE)1.8 GWhMar 2016Dec 2022 Solar
Onset West Community Solar FacilityKearsarge Onset LLCWareham, MAISO New England (ISNE)1.9 GWhMar 2016Dec 2022 Solar
Ontario Solar CenterAdapture Renewables, Inc.Ontario, ORIdaho Power Company (IPCO)5.7 GWhApr 2020Dec 2023 Solar
Onondaga County- JamesvilleTesla Inc.Jamesville, NYNew York Independent System Operator (NYIS)2.0 GWhFeb 2018Dec 2023 Solar
O'Brien Solar FieldsMadison Gas & Electric CoFitchburg, WIMidcontinent Independent System Operator, Inc. (MISO)37.4 GWhApr 2021Dec 2023 Solar
Onondaga County- ClearwaterTesla Inc.Oswego, NYISO New England (ISNE)2.6 GWhJun 2017Dec 2023 Solar
Onion RiverWisconsin Power & Light CoSheboygan Cedar Grove, WIMidcontinent Independent System Operator, Inc. (MISO)147.5 GWhNov 2023Aug 2024 Solar
Ontario SunAzimuth 180 Solar Electric, LLCSandy Creek, NYNew York Independent System Operator (NYIS)2.1 GWhJan 2023Dec 2023 Solar
Onyx - Allen HarimOnyx Asset Services GroupHarbeson, DEPJM Interconnection, LLC (PJM)1.8 GWhMar 2017Dec 2023 Solar
Open View Solar FarmCross Pollination IncNew Haven, VTISO New England (ISNE)2.5 GWhAug 2013Dec 2023 Solar
OYA Main StreetOYA Main Street LLCYork, NYNew York Independent System Operator (NYIS)8.3 GWhNov 2022Dec 2023 Solar
OYA Church RoadOYA Church Road A LLCBaldwinsville, NYNew York Independent System Operator (NYIS)4.2 GWhNov 2022Dec 2023 Solar
Oxy Renewable Energy - GoldsmithOxy Renewable Energy LLCGoldsmith, TXElectric Reliability Council of Texas, Inc. (ERCO)42.7 GWhApr 2020Dec 2023 Solar
OR Solar 2, LLCOR Solar 2, LLCEagle Point, ORPacifiCorp West (PACW)21.3 GWhSep 2020Dec 2023 Solar
OR Solar 3, LLCHeelstone Energy Holdings, LLCMalin, ORPacifiCorp West (PACW)23.3 GWhNov 2017Dec 2023 Solar
OR Solar 5, LLCHeelstone Energy Holdings, LLCMerrill, ORPacifiCorp West (PACW)18.0 GWhDec 2017Dec 2023 Solar
OR Solar 6, LLCHeelstone Energy Holdings, LLCLakeview, ORPacifiCorp West (PACW)23.3 GWhNov 2017Dec 2023 Solar
Oxon Run CREFOxon Run Community Renewable Energy FacilityWashington, DCPJM Interconnection, LLC (PJM)3.2 GWhNov 2021Dec 2023 Solar
Oxford SolarCitizens Enterprises CorporationOxford, MAISO New England (ISNE)6.5 GWhJan 2020Dec 2023 Solar
OR Solar 8, LLCHeelstone Energy Holdings, LLCDairy, ORPacifiCorp West (PACW)23.7 GWhFeb 2018Dec 2023 Solar
Orange Blossom Solar CenterFlorida Power & Light CoVero Beach, FLFlorida Power & Light Co. (FPL)150.2 GWhApr 2021Aug 2024 Solar
Oneida - WestOneida DG Solar, LLCWhitestown, NYNew York Independent System Operator (NYIS)2.3 GWhNov 2015Dec 2023 Solar
Orange County Solar Farm (NY)Tesla Inc.Goshen, NYISO New England (ISNE)2.3 GWhApr 2017Dec 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