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
Orchard Avenue 1Yakima-Tieton Irrigation DistYakima, WAPacifiCorp West (PACW)2.6 GWhFeb 1987Oct 2023 Water
Omega Hills Gas RecoveryWM Renewable Energy LLCGermantown, WIMidcontinent Independent System Operator, Inc. (MISO)86.2 GWhNov 1985Aug 2024 Landfill Gas
Oneida HerkimerWM Renewable Energy LLCBoonville, NYNew York Independent System Operator (NYIS)26.3 GWhMar 2012Dec 2023 Landfill Gas
Onion RiverWisconsin Power & Light CoSheboygan Cedar Grove, WIMidcontinent Independent System Operator, Inc. (MISO)147.5 GWhNov 2023Aug 2024 Solar
Oil Dri 2 SolarWestbound Solar LLCOchlocknee, GASouthern Company Services, Inc. - Trans (SOCO)2.9 GWhApr 2019Dec 2023 Solar
Oak Ridge LFGTEWabash Valley Power Assn, IncLogansport, INMidcontinent Independent System Operator, Inc. (MISO)21.7 GWhNov 2003Dec 2023 Landfill Gas
Oceana SolarVirginia Electric & Power CoVirginia Beach, VAPJM Interconnection, LLC (PJM)29.0 GWhNov 2017Dec 2023 Solar
Oak Bluffs Diesel Generating FacilityVineyard Reliability LLCOak Bluffs, MAISO New England (ISNE)1.3 GWhDec 1968Dec 2023 Distillate Fuel Oil
Oxford (NE)Village of Oxford - (NE)Oxford, NESouthwest Power Pool (SWPP)27.0 MWhJul 1953Dec 2023 Natural Gas : 91.0% Distillate Fuel Oil : 9.0%
Old HickoryUSCE-Nashville DistrictHendersonville, TNTennessee Valley Authority (TVA)368.7 GWhMar 1957Dec 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
Osage DamUnion Electric Co - (MO)Eldon, MOMidcontinent Independent System Operator, Inc. (MISO)176.1 GWhSep 1931Dec 2023 Water
O'Fallon Renewable Energy CenterUnion Electric Co - (MO)O'Fallon, MOMidcontinent Independent System Operator, Inc. (MISO)5.3 GWhNov 2014Dec 2023 Solar
Oso Grande Wind FarmTucson Electric Power CoMaljamar, NMTucson Electric Power (TEPC)540.3 GWhApr 2021Aug 2024 Wind
Orange Street G1Town of Bedford - (VA)Bedford, VAPJM Interconnection, LLC (PJM)211.0 MWhJun 2005Dec 2023 Distillate Fuel Oil
Otarre Solar ParkTIG Sun Energy IV, LLCCayce, SCDominion Energy South Carolina, Inc. (SCEG)2.8 GWhNov 2017Dec 2023 Solar
OTHERTraditionClearforkTexas Microgrid, LLCFort Worth, TXElectric Reliability Council of Texas, Inc. (ERCO)42.0 MWhMar 2023Dec 2023 Natural Gas
OTHERTexasA&MTexas Microgrid, LLCBryan, TXElectric Reliability Council of Texas, Inc. (ERCO)2.1 GWhApr 2018Dec 2023 Natural Gas
OTHERNFBWATexas Microgrid, LLCHouston, TXElectric Reliability Council of Texas, Inc. (ERCO)178.0 MWhJan 2021Dec 2023 Natural Gas
OTHERCitizensHospitalTexas Microgrid, LLCVictoria, TXElectric Reliability Council of Texas, Inc. (ERCO)823.0 MWhMar 2020Dec 2023 Natural Gas
Onondaga County- ClearwaterTesla Inc.Oswego, NYISO New England (ISNE)2.6 GWhJun 2017Dec 2023 Solar
Onondaga County- JamesvilleTesla Inc.Jamesville, NYNew York Independent System Operator (NYIS)2.0 GWhFeb 2018Dec 2023 Solar
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
Oneida County- DPWTesla Inc.Oriskany, NYISO New England (ISNE)1.8 GWhSep 2017Dec 2023 Solar
Orange County Solar Farm (NY)Tesla Inc.Goshen, NYISO New England (ISNE)2.3 GWhApr 2017Dec 2023 Solar
Oregon Convention CenterTesla Inc.Portland, ORPacifiCorp West (PACW)1.7 GWhJun 2016Dec 2023 Solar
Oregon University System OIT Klamath FallsTesla Inc.Klamath Falls, ORPacifiCorp West (PACW)2.4 GWhDec 2013Dec 2023 Solar
Oregon University System Rabbit FieldTesla Inc.Corvallis, ORPacifiCorp West (PACW)1.2 GWhFeb 2014Dec 2023 Solar
Oswego County - Fulton SolarTesla Inc.Fulton, NYNew York Independent System Operator (NYIS)2.1 GWhMay 2018Dec 2023 Solar
Orange PVTerraform ArcadiaOrange, MAISO New England (ISNE)2.3 GWhJun 2013Dec 2023 Solar
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
Oak Creek Energy Systems ITerra-Gen Operating Co-WindMojave, CACalifornia Independent System Operator (CISO)37.8 GWhMay 1982Dec 2023 Wind
Ocoee 1Tennessee Valley AuthorityBenton, TNTennessee Valley Authority (TVA)69.8 GWhDec 1911Dec 2023 Water
Ocoee 2Tennessee Valley AuthorityBenton, TNTennessee Valley Authority (TVA)80.7 GWhSep 1913Dec 2023 Water
Ocoee 3Tennessee Valley AuthorityBenton, TNTennessee Valley Authority (TVA)141.4 GWhMar 1943Dec 2023 Water
Old Wire FarmStrata Manager, LLCLaurel Hill, NCDuke Energy Progress East (CPLE)10.1 GWhNov 2016Dec 2023 Solar
Overhill SolarStrata Manager, LLCClinton, NCDuke Energy Carolinas (DUK)10.8 GWhFeb 2022Dec 2023 Solar
OER CheckerspotStandard SolarTracy's Landing, MDPJM Interconnection, LLC (PJM)3.0 GWhNov 2021Dec 2023 Solar
OER Monarch CSGStandard SolarUpper Marlboro, MDPJM Interconnection, LLC (PJM)3.4 GWhNov 2021Dec 2023 Solar
OER Patuxent CSGStandard SolarLothian, MDPJM Interconnection, LLC (PJM)4.2 GWhOct 2022Dec 2023 Solar
Owatonna Energy StationSouthern Minnesota Mun P AgnyOwatonna, MNMidcontinent Independent System Operator, Inc. (MISO)53.5 GWhFeb 2018Dec 2023 Natural Gas
Oak Hill Solar ArraySouthern Indiana Gas & Elec CoEvansville, INMidcontinent Independent System Operator, Inc. (MISO)3.4 GWhOct 2018Dec 2023 Solar
Old Plank Road Solar Farm, LLCSoutheastern Solar Farm Fund, LLCJacksonville, FLJEA (JEA)5.7 GWhSep 2017Dec 2023 Solar
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%
Ontario LFGTESeneca Energy IIStanley, NYNew York Independent System Operator (NYIS)78.4 GWhOct 2003Dec 2023 Landfill Gas
OxnardProcter&Gamble Paper Products Co-OxnardOxnard, CACalifornia Independent System Operator (CISO)483.7 GWhJun 1982Aug 2024 Natural Gas
Oak GrovePortland General Electric CoEstacada, ORPortland General Electric Company (PGE)152.1 GWhJul 1924Dec 2023 Water
Otero SolarPNM ResourcesLa Luz, NMPublic Service Company of New Mexico (PNM)18.0 GWhNov 2013Dec 2023 Solar
Oxbow (CA)Placer County Water AgencyForesthill, CACalifornia Independent System Operator (CISO)13.8 GWhSep 1966Dec 2023 Water
Ocotillo Express LLCPattern Operators LPOcotillo, CACalifornia Independent System Operator (CISO)539.0 GWhNov 2012Aug 2024 Wind
One Market PlazaParamount Group IncSan Francisco, CACalifornia Independent System Operator (CISO)993.0 MWhNov 2003Dec 2023 Natural Gas
Oakboro FarmPalmetto Power Management LLCLaurinburg, NCDuke Energy Carolinas (DUK)8.3 GWhAug 2014Dec 2023 Solar
OneidaPacifiCorpRiverdale, IDPacifiCorp East (PACE)42.4 GWhJun 1915Dec 2023 Water
Ozarks Natural Energy Community SolarOzarks Electric Coop Corp - (AR)Springdale, ARSouthwest Power Pool (SWPP)1.3 GWhMar 2016Dec 2023 Solar
OYA Wayside DriveOYA Wayside Drive LLCWatertown, NYNew York Independent System Operator (NYIS)9.5 GWhSep 2022Dec 2023 Solar
OYA State Route 122OYA State Route 122, LLCConstable, NYNew York Independent System Operator (NYIS)7.8 GWhNov 2021Dec 2023 Solar
OYA Robinson RoadOYA Robinson Road, LLCOrleans, NYNew York Independent System Operator (NYIS)9.2 GWhMay 2022Dec 2023 Solar
OYA PulaskiOYA Pulaski LLCPulaski, NYNew York Independent System Operator (NYIS)6.4 GWhOct 2022Dec 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
Oxon Run CREFOxon Run Community Renewable Energy FacilityWashington, DCPJM Interconnection, LLC (PJM)3.2 GWhNov 2021Dec 2023 Solar
Oxnard Wastewater Treatment PlantOxnard City ofOxnard, CACalifornia Independent System Operator (CISO)5.7 GWhJul 1981Aug 2024 Other Biomass Gas : 87.7% Natural Gas : 12.3%
Oxbow CreekOxbow Creek Energy LLCFactoryville, PAPJM Interconnection, LLC (PJM)62.4 GWhNov 2019Dec 2023 Natural Gas
Owyhee Dam Power ProjectOwyhee Irrigation DistrictNyssa, ORIdaho Power Company (IPCO)15.2 GWhJul 1985Oct 2023 Water
Owlville Creek Solar, LLCOwlville Creek Solar, LLCCanastota, NYNew York Independent System Operator (NYIS)8.3 GWhNov 2020Dec 2023 Solar
Owlville Creek Solar 2, LLCOwlville Creek Solar 2, LLCCanastota, NYNew York Independent System Operator (NYIS)7.2 GWhNov 2020Dec 2023 Solar
Owen SolarOwen Solar LLCLincolnton, NCDuke Energy Carolinas (DUK)9.1 GWhMar 2016Dec 2023 Solar
Overman SolarOverman Solar, LLCGoldsboro, NCDuke Energy Progress East (CPLE)10.9 GWhNov 2021Dec 2023 Solar
Overlook Medical CenterOverlook Medical CenterSummit, NJPJM Interconnection, LLC (PJM)3.6 GWhDec 2011Dec 2022 Natural Gas : 99.8%
Outback Solar At Christmas ValleyOutback Solar, LLCChristmas Valley, ORBonneville Power Administration (BPAT)7.1 GWhSep 2012Dec 2023 Solar
Ottumwa City ofOttumwa City ofOttumwa, IAMidcontinent Independent System Operator, Inc. (MISO)5.3 GWhJul 1931Dec 2023 Water
Otter Creek Ethanol Poet - AshtonOtter Creek Ethanol LLC - Poet AshtonAshton, IAMidcontinent Independent System Operator, Inc. (MISO)44.8 GWhFeb 2004Aug 2024 Natural Gas
Otsego Mill Power PlantOtsego Paper IncOtsego, MIMidcontinent Independent System Operator, Inc. (MISO)161.2 GWhOct 1995Dec 2023 Natural Gas
Otis Elevator Company SolarOtis Elevator CompanyFlorence, SCDuke Energy Carolinas (DUK)1.6 GWhApr 2018Dec 2023 Solar
Otay Mesa Generating ProjectOtay Mesa Energy Center LLCSan Diego, CACalifornia Independent System Operator (CISO)2.4 TWhSep 2009Aug 2024 Natural Gas
Oswego Harbor PowerOswego Harbor PowerOswego, NYNew York Independent System Operator (NYIS)42.5 GWhMay 1975Jul 2024 Residual Fuel Oil
Oswego County Energy RecoveryOswego CountyFulton, NYNew York Independent System Operator (NYIS)7.3 GWhJan 1986Dec 2023 Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
OSLH, LLCOSLH, LLCBend, ORPacifiCorp West (PACW)22.4 GWhNov 2016Dec 2023 Solar
Osceola Windpower LLCOsceola Windpower LLCHarris, IASouthwest Power Pool (SWPP)402.6 GWhJun 2008Aug 2024 Wind
Osceola Windpower IIOsceola Windpower IIHarris, IAMidcontinent Independent System Operator, Inc. (MISO)198.9 GWhAug 2008Aug 2024 Wind
Osborn Wind EnergyOsborn Wind Energy LLCStewartsville, MOSouthwest Power Pool (SWPP)665.4 GWhNov 2016Aug 2024 Wind
Oroville Cogeneration LPOroville Cogeneration LPOroville, CACalifornia Independent System Operator (CISO)235.0 MWhDec 1989Dec 2023 Natural Gas
Ormond BeachOrmond Beach Power, LLCOxnard, CACalifornia Independent System Operator (CISO)44.9 GWhJul 1971Aug 2024 Natural Gas
Ormesa IIIOrmat Nevada IncHoltville, CAImperial Irrigation District (IID)68.5 GWhApr 1989Dec 2023 Geothermal
OREG 1 IncOrmat Nevada IncCulbertson, MTSouthwest Power Pool (SWPP)148.4 GWhJun 2006Aug 2024 Waste Heat
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
Ormesa IOrmat Nevada IncHoltville, CAImperial Irrigation District (IID)101.7 GWhNov 1986Dec 2023 Geothermal
Ormesa IIOrmat Nevada IncHoltville, CAImperial Irrigation District (IID)95.0 GWhApr 1989Dec 2023 Geothermal
OREG 4 PeetzOrmat Nevada IncPeetz, COWestern Area Power Administration - Rocky Mountain Region (WACM)3.2 GWhFeb 2009May 2024 Waste Heat
Osceola Generating Station (FL)Orlando Utilities CommSt. Cloud, FLDuke Energy Florida, Inc. (FPC)676.0 MWhNov 2001Dec 2023 Natural Gas : 90.0% Distillate Fuel Oil : 10.0%
Orlando Cogen LPOrlando CoGen Ltd LPOrlando, FLDuke Energy Florida, Inc. (FPC)1.0 TWhAug 1993Dec 2023 Natural Gas
Orion Solar IIOrion Solar II, LLCArvin, CACalifornia Independent System Operator (CISO)18.3 GWhMay 2014Dec 2023 Solar
Orion Solar IOrion Solar I LLCArvin, CACalifornia Independent System Operator (CISO)28.9 GWhMar 2014Dec 2023 Solar
Orion Community SolarOrion Community SolarSt. Joseph, MNMidcontinent Independent System Operator, Inc. (MISO)4.6 GWhDec 2016Dec 2023 Solar
OES Biogas PowerOrganic Energy Solutions, Inc.San Bernardino, CACalifornia Independent System Operator (CISO)348.0 MWh-Dec 2023 Other Biomass Gas

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