Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Solean Solar Project | BQ Energy LLC | Olean, NY | New York Independent System Operator (NYIS) | 8.4 GWh | Mar 2016 | Dec 2023 | Solar |
| Buffalo Mountain Energy Center | Invenergy Services LLC | Oliver Springs, TN | Tennessee Valley Authority (TVA) | 15.8 GWh | Nov 2004 | Nov 2024 | Wind |
| SR Russellville | SR Russellville, LLC | Olmstead, KY | Tennessee Valley Authority (TVA) | 127.3 GWh | Aug 2024 | May 2025 | Solar |
| Olney Solar II CSG | Olney Solar II, LLC | Olney, IL | Midcontinent Independent System Operator, Inc. (MISO) | 4.4 GWh | May 2021 | Dec 2024 | Solar |
| Trinity Hills | Trinity Hills Wind Farm LLC | Olney, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 735.2 GWh | Nov 2011 | May 2025 | Wind |
| Missouri River Wastewater Treatment | City of Omaha | Omaha, NE | Southwest Power Pool (SWPP) | 12.5 GWh | Mar 1985 | May 2025 | Other Biomass Gas : 97.1% Natural Gas : 2.9% |
| Jones Street | Omaha Public Power District | Omaha, NE | Southwest Power Pool (SWPP) | 15.6 GWh | May 1973 | Dec 2024 | Distillate Fuel Oil |
| North Omaha | Omaha Public Power District | Omaha, NE | Southwest Power Pool (SWPP) | 1.2 TWh | Jun 1954 | May 2025 | Subbituminous Coal : 85.9% Natural Gas : 14.1% |
| Onalaska Campus Landfill Biogas | Gundersen Lutheran Biogas I LLC | Onalaska, WI | Midcontinent Independent System Operator, Inc. (MISO) | 4.3 GWh | Feb 2012 | Dec 2024 | Landfill Gas |
| Onancock Diesel Generation Facility | Old Dominion Electric Coop | Onancock, VA | PJM Interconnection, LLC (PJM) | 264.0 MWh | Oct 2002 | Dec 2024 | Distillate Fuel Oil |
| Kleber | Tower Kleber Ltd Partnership | Onaway, MI | Midcontinent Independent System Operator, Inc. (MISO) | 4.8 GWh | Dec 1924 | Dec 2024 | Water |
| Mira Loma Peaker | Southern California Edison Co | Ontario, CA | California Independent System Operator (CISO) | 11.3 GWh | Aug 2007 | Dec 2024 | Natural Gas |
| Kaiser Ontario | Bloom Energy 2009 PPA | Ontario, CA | California Independent System Operator (CISO) | 2.8 GWh | Sep 2012 | Dec 2024 | Natural Gas |
| Oltmans SCE at Jurupa | California PV Energy LLC | Ontario, CA | California Independent System Operator (CISO) | 2.4 GWh | Nov 2013 | Dec 2024 | Solar |
| Oltmans SCE at Champagne | California PV Energy LLC | Ontario, CA | California Independent System Operator (CISO) | 1.5 GWh | Nov 2013 | Dec 2024 | Solar |
| New-Indy Ontario Mill | New-Indy Ontario LLC | Ontario, CA | California Independent System Operator (CISO) | 244.1 GWh | May 1985 | May 2025 | Natural Gas |
| SunE- E Philadelphia Ontario | SunEdison LLC | Ontario, CA | California Independent System Operator (CISO) | 1.5 GWh | Feb 2016 | Dec 2024 | Solar |
| Terra Francesco | Altus Power America Management, LLC | Ontario, CA | California Independent System Operator (CISO) | 2.1 GWh | Feb 2015 | Dec 2024 | Solar |
| PVN Milliken, LLC | PVN Milliken, LLC | Ontario, CA | California Independent System Operator (CISO) | 4.8 GWh | May 2017 | Dec 2024 | Solar |
| Harbec Energy | Harbec Energy | Ontario, NY | New York Independent System Operator (NYIS) | 598.0 MWh | Nov 2001 | Dec 2024 | Natural Gas : 97.3% Wind : 2.7% |
| Furnace Rd Community Solar Farm | KSI II Consolidated, LLC | Ontario, NY | New York Independent System Operator (NYIS) | 4.5 GWh | Nov 2020 | Dec 2023 | Solar |
| R E Ginna Nuclear Power Plant | Constellation Nuclear | Ontario, NY | New York Independent System Operator (NYIS) | 4.8 TWh | Jun 1970 | May 2025 | Nuclear |
| Ontario Solar Center | Adapture Renewables, Inc. | Ontario, OR | Idaho Power Company (IPCO) | 6.8 GWh | Apr 2020 | Dec 2024 | Solar |
| Vale Solar Center | Adapture Renewables, Inc. | Ontario, OR | Idaho Power Company (IPCO) | 5.5 GWh | Jul 2020 | Dec 2024 | Solar |
| Morgan Solar Center | Adapture Renewables, Inc. | Ontario, OR | Idaho Power Company (IPCO) | 6.5 GWh | Apr 2020 | Dec 2024 | Solar |
| Railroad Solar Center, LLC | Cypress Creek Renewables | Ontario, OR | Idaho Power Company (IPCO) | 9.9 GWh | Oct 2016 | May 2025 | Solar |
| Hyline Solar Center, LLC | Cypress Creek Renewables | Ontario, OR | Idaho Power Company (IPCO) | 20.2 GWh | Sep 2016 | May 2025 | Solar |
| Verde Light Community Solar | Verde Light Community Solar LLC | Ontario, OR | Idaho Power Company (IPCO) | 6.7 GWh | Nov 2023 | Dec 2024 | Solar |
| Northeastern | Public Service Co of Oklahoma | Oologah, OK | Southwest Power Pool (SWPP) | 4.0 TWh | Mar 1961 | May 2025 | Natural Gas : 69.6% Subbituminous Coal : 30.4% |
| Prairie Ronde Solar Farm | Lightsource Renewable Energy Asset Management, LLC | Opelousas, LA | Midcontinent Independent System Operator, Inc. (MISO) | 124.7 GWh | Oct 2024 | May 2025 | Solar |
| Ames Hydro | Public Service Co of Colorado | Ophir, CO | Western Area Power Administration - Rocky Mountain Region (WACM) | 6.6 GWh | May 1906 | Mar 2024 | Water |
| Galesburg Solar Array | AEP Onsite Partners, LLC | Oquawka, IL | Midcontinent Independent System Operator, Inc. (MISO) | 2.8 GWh | Feb 2020 | Dec 2023 | Solar |
| University of Arizona - Biosphere 2 | University of Arizona - Biosphere 2 | Oracle, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 53.0 MWh | Oct 1990 | Dec 2024 | Natural Gas : 67.8% Distillate Fuel Oil : 32.2% |
| Orange PV | Terraform Arcadia | Orange, MA | ISO New England (ISNE) | 2.6 GWh | Jun 2013 | Dec 2024 | Solar |
| W. Orange Rd Solar LLC | AES Distributed Energy | Orange, MA | ISO New England (ISNE) | 7.7 GWh | Aug 2021 | Dec 2024 | Solar |
| Wilbur Woods Solar LLC | AES Distributed Energy | Orange, MA | ISO New England (ISNE) | 8.3 GWh | Aug 2021 | Dec 2024 | Solar |
| Hunt Farm Solar | Altus Power America Management, LLC | Orange, MA | ISO New England (ISNE) | 3.4 GWh | Aug 2013 | Dec 2024 | Solar |
| OSG Solar 1 LLC | Navisun LLC | Orange, MA | ISO New England (ISNE) | 3.1 GWh | Jun 2012 | Dec 2023 | Solar |
| USG Paper, LLC - Orange Mill | USG Paper LLC | Orange, TX | Midcontinent Independent System Operator, Inc. (MISO) | 238.6 GWh | Oct 1967 | Dec 2023 | Black Liquor : 59.3% Wood/Wood Waste Solids : 39.8% Tire-derived Fuels : 0.9% |
| Sabine River Operations | The Dow Chemical Company | Orange, TX | Midcontinent Independent System Operator, Inc. (MISO) | 3.0 TWh | Dec 1947 | May 2025 | Natural Gas : 99.2% Other Gas : 0.8% |
| Sabine | Entergy Texas Inc. | Orange, TX | Midcontinent Independent System Operator, Inc. (MISO) | 3.8 TWh | Dec 1961 | May 2025 | Natural Gas |
| Rowesville Rd Plant | City of Orangeburg - (SC) | Orangeburg, SC | Dominion Energy South Carolina, Inc. (SCEG) | 1.0 GWh | May 1994 | Dec 2024 | Natural Gas |
| Jamison Solar Farm | Jamison Solar Farm | Orangeburg, SC | South Carolina Public Service Authority (SC) | 1.9 GWh | Mar 2019 | Dec 2024 | Solar |
| Bull Street Plant | City of Orangeburg - (SC) | Orangeburg, SC | Dominion Energy South Carolina, Inc. (SCEG) | 37.0 MWh | Mar 2005 | Dec 2024 | Natural Gas |
| Substation 20 Plant | City of Orangeburg - (SC) | Orangeburg, SC | Dominion Energy South Carolina, Inc. (SCEG) | 751.0 MWh | May 2014 | Dec 2024 | Natural Gas |
| Orchard Ranch Solar | Orchard Ranch Solar, LLC | Orchard, ID | Idaho Power Company (IPCO) | 43.7 GWh | Feb 2017 | May 2025 | Solar |
| Ord | City of Ord - (NE) | Ord, NE | Southwest Power Pool (SWPP) | 106.0 MWh | Dec 1962 | Dec 2024 | Distillate Fuel Oil |
| NSE Camber BH CSG 2, LLC | Nautilus Solar Solutions | Ordway, CO | Western Area Power Administration - Rocky Mountain Region (WACM) | 3.9 GWh | Oct 2021 | Dec 2024 | Solar |
| Hecate Energy Upshur Rural LLC | Hecate Energy Upshur Rural LLC | Ore City, TX | Southwest Power Pool (SWPP) | 4.1 GWh | Jun 2022 | Dec 2024 | Solar |
| SulusSolar17 | Adapture Renewables, Inc. | Oregon City, OR | Portland General Electric Company (PGE) | 4.1 GWh | May 2020 | Dec 2024 | Solar |
| OE IL Solar 3 | OE IL Solar 3, LLC | Oregon, IL | Midcontinent Independent System Operator, Inc. (MISO) | 4.5 GWh | Feb 2022 | Dec 2024 | Solar |
| Oregon Clean Energy Center | Oregon Clean Energy Center | Oregon, OH | PJM Interconnection, LLC (PJM) | 5.9 TWh | Jun 2017 | May 2025 | Natural Gas |
| FirstEnergy Bay Shore | Walleye Power, LLC | Oregon, OH | PJM Interconnection, LLC (PJM) | 938.3 GWh | Jul 1955 | Dec 2023 | Petroleum Coke : 99.5% |
| Toledo Ref Power Recovery Train | Toledo Refining Company | Oregon, OH | PJM Interconnection, LLC (PJM) | 572.3 MWh | May 1986 | Jan 2025 | Petroleum Coke |
| Cumberland Rose | Cumberland Rose Wind Energy, LLC | Orient, IA | Midcontinent Independent System Operator, Inc. (MISO) | 5.2 GWh | Jul 2012 | Dec 2024 | Wind |
| Bulldog | Bulldog Wind Energy, LLC | Orient, IA | Midcontinent Independent System Operator, Inc. (MISO) | 4.1 GWh | Sep 2010 | Dec 2024 | Wind |
| Orient Wind Farm | MidAmerican Energy Co | Orient, IA | Midcontinent Independent System Operator, Inc. (MISO) | 1.8 TWh | Nov 2018 | May 2025 | Wind |
| Eagle Valley (MI) | WM Renewable Energy LLC | Orion, MI | Midcontinent Independent System Operator, Inc. (MISO) | 22.9 GWh | Jun 2011 | Dec 2024 | Landfill Gas |
| Oneida County- DPW | Tesla Inc. | Oriskany, NY | ISO New England (ISNE) | 1.8 GWh | Sep 2017 | Dec 2024 | Solar |
| Judd Road Solar | EF NY CDG 007, LLC | Oriskany, NY | New York Independent System Operator (NYIS) | 8.6 GWh | Feb 2022 | Dec 2024 | Solar |
| Hayhurst Texas Solar | Hayhurst Texas Solar | Orla, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 64.0 GWh | Mar 2024 | Dec 2024 | Solar |
| Adapture CA2, LLC | Adapture Renewables, Inc. | Orland, CA | PacifiCorp West (PACW) | 3.1 GWh | Feb 2016 | Dec 2024 | Solar |
| Black Butte | City of Santa Clara - (CA) | Orland, CA | California Independent System Operator (CISO) | 14.9 GWh | Aug 1988 | Dec 2024 | Water |
| Stanton Energy Center | Orlando Utilities Comm | Orlando, FL | Florida Municipal Power Pool (FMPP) | 4.6 TWh | Jun 1987 | May 2025 | Bituminous Coal : 57.2% Natural Gas : 42.2% Landfill Gas : 0.6% |
| Orlando Cogen LP | Florida Municipal Power Agency | Orlando, FL | Duke Energy Florida, Inc. (FPC) | 704.8 GWh | Aug 1993 | Dec 2024 | Natural Gas |
| RP-Orlando, LLC | Duke Energy Renewables Services | Orlando, FL | Duke Energy Florida, Inc. (FPC) | 8.2 GWh | Nov 2011 | Dec 2024 | Solar |
| Curtis H Stanton Energy Center | Stanton Clean Energy LLC | Orlando, FL | Duke Energy Florida, Inc. (FPC) | 3.6 TWh | Sep 2003 | May 2025 | Natural Gas |
| Walt Disney World Solar Facility | Duke Energy Florida Solar Solutions | Orlando, FL | Duke Energy Florida, Inc. (FPC) | 8.0 GWh | Feb 2016 | Dec 2024 | Solar |
| ACE-Stanton A PV | ACE-Stanton A, LLC | Orlando, FL | Florida Municipal Power Pool (FMPP) | 7.8 GWh | Aug 2017 | Dec 2024 | Solar |
| ACE-Stanton PV | ACE-Stanton, LLC | Orlando, FL | Florida Municipal Power Pool (FMPP) | 9.2 GWh | Aug 2017 | Dec 2024 | Solar |
| Taylor Creek Solar | Taylor Creek Solar LLC | Orlando, FL | Florida Municipal Power Pool (FMPP) | 167.4 GWh | May 2020 | May 2025 | Solar |
| Lockheed Martin Solar | Lockheed Martin RMS | Orlando, FL | Duke Energy Florida, Inc. (FPC) | 3.2 GWh | Sep 1998 | Dec 2024 | Solar : 98.0% Distillate Fuel Oil : 2.0% |
| OYA Robinson Road | OYA Robinson Road, LLC | Orleans, NY | New York Independent System Operator (NYIS) | 9.2 GWh | May 2022 | Dec 2023 | Solar |
| Alamo Solar | Onward Energy | Oro Grande, CA | California Independent System Operator (CISO) | 47.7 GWh | Apr 2015 | Dec 2024 | Solar |
| Oro Loma | Consolidated Edison Development Inc. | Oro Loma, CA | California Independent System Operator (CISO) | 25.5 GWh | Dec 2016 | Dec 2024 | Solar |
| Canyon Del Oro High School Solar | Luminace Solar Arizona 2, LLC | Oro Valley, AZ | Tucson Electric Power (TEPC) | 2.4 GWh | Oct 2016 | Dec 2024 | Solar |
| Orono B | Brookfield Black Bear Hydro, LLC | Orono, ME | ISO New England (ISNE) | 21.3 GWh | Oct 2013 | Dec 2024 | Water |
| Orono Hydro Station | Brookfield Black Bear Hydro, LLC | Orono, ME | ISO New England (ISNE) | 5.8 GWh | Dec 2008 | Dec 2024 | Water |
| Edward C Hyatt | California Dept. of Water Resources | Oroville, CA | California Independent System Operator (CISO) | 2.1 TWh | Feb 1968 | May 2025 | Water |
| Kelly Ridge | South Feather Water and Power Agency | Oroville, CA | California Independent System Operator (CISO) | 66.5 GWh | Aug 1963 | Dec 2024 | Water |
| Thermalito | California Dept. of Water Resources | Oroville, CA | California Independent System Operator (CISO) | 321.6 GWh | Jan 1968 | May 2025 | Water |
| Butte College Main Campus Solar | Butte-Glenn Community College District | Oroville, CA | California Independent System Operator (CISO) | 6.3 GWh | Jun 2011 | Dec 2024 | Solar |
| Thermalito Diverson Dam | California Dept. of Water Resources | Oroville, CA | California Independent System Operator (CISO) | 19.2 GWh | Jun 1987 | Dec 2024 | Water |
| Oroville Cogeneration LP | Apex Power Generation Corp. | Oroville, CA | California Independent System Operator (CISO) | 672.3 MWh | Dec 1989 | Dec 2024 | Natural Gas |
| Walters Solar (FLS 260) | Cypress Creek Renewables | Orrum, NC | Duke Energy Progress East (CPLE) | 8.5 GWh | Jul 2015 | Dec 2024 | Solar |
| DG AMP Solar Orrville 3 | DG AMP Solar, LLC | Orrville, OH | PJM Interconnection, LLC (PJM) | 3.3 GWh | Jan 2018 | Dec 2024 | Solar |
| Orrville Peaking | American Mun Power-Ohio, Inc | Orrville, OH | PJM Interconnection, LLC (PJM) | 209.0 MWh | Jun 1999 | Dec 2024 | Distillate Fuel Oil |
| Orrville | City of Orrville - (OH) | Orrville, OH | PJM Interconnection, LLC (PJM) | 22.0 GWh | Dec 1948 | Aug 2024 | Bituminous Coal : 51.7% Natural Gas : 48.3% |
| Osage City Solar | Evergy Kansas Central, Inc | Osage City, KS | Southwest Power Pool (SWPP) | 164.0 MWh | Nov 2024 | Dec 2024 | Solar |
| Maple City | Greenbacker Renewable Energy Corporation | Osage Township, IA | Associated Electric Cooperative, Inc. (AECI) | 3.1 GWh | Nov 2022 | Dec 2024 | Solar |
| Osage (IA) | City of Osage - (IA) | Osage, IA | Midcontinent Independent System Operator, Inc. (MISO) | 5.6 GWh | Aug 1963 | Dec 2024 | Wind : 81.2% Solar : 18.8% |
| Novel OYA of Osakis CSG | NRG MN Community LLC | Osakis, MN | Midcontinent Independent System Operator, Inc. (MISO) | 8.8 GWh | Jun 2018 | Dec 2024 | Solar |
| FastSun 13 CSG | Altus Power America Management, LLC | Osakis, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.8 GWh | Nov 2019 | Dec 2024 | Solar |
| Douglas Todd Community Solar One LLC CSG | Madison Energy Holdings LLC | Osakis, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.8 GWh | Nov 2019 | Dec 2024 | Solar |
| Novel Herickhoff Solar CSG | REA Investments, LLC | Osakis, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.4 GWh | Mar 2020 | Dec 2024 | Solar |
| Osawatomie Power Plant North Sub | City of Osawatomie - (KS) | Osawatomie, KS | Southwest Power Pool (SWPP) | 27.0 MWh | Apr 2018 | Dec 2024 | Distillate Fuel Oil |
| Osawatomie Power Plant South Sub | City of Osawatomie - (KS) | Osawatomie, KS | Southwest Power Pool (SWPP) | 30.0 MWh | Feb 2017 | Dec 2024 | Distillate Fuel Oil |
| Osawatomie Solar | Evergy Kansas Central, Inc | Osawatomie, KS | Southwest Power Pool (SWPP) | 473.0 MWh | Nov 2024 | Dec 2024 | Solar |
| Osawatomie City of | City of Osawatomie - (KS) | Osawatomie, KS | Southwest Power Pool (SWPP) | 10.0 MWh | Sep 1950 | Dec 2023 | Distillate Fuel Oil |
| Osborne | City of Osborne - (KS) | Osborne, KS | Southwest Power Pool (SWPP) | 15.7 MWh | May 1957 | Dec 2024 | Distillate Fuel Oil : 80.6% Natural Gas : 19.4% |
Summary of Power Plants By State
Figures are based on May 2025 generation numbers.| State | Rank | Active Plants | May 2025 Generation |
|---|---|---|---|
| Alabama | # 7 | 75 | 11,300.49 GWh |
| Alaska | # 48 | 142 | 475.90 GWh |
| Arizona | # 11 | 176 | 9,204.37 GWh |
| Arkansas | # 25 | 99 | 5,005.01 GWh |
| California | # 4 | 1,667 | 17,300.59 GWh |
| Colorado | # 28 | 290 | 4,508.30 GWh |
| Connecticut | # 38 | 162 | 2,580.83 GWh |
| Delaware | # 50 | 32 | 189.30 GWh |
| District of Columbia | # 51 | 16 | 14.93 GWh |
| Florida | # 2 | 317 | 24,888.07 GWh |
| Georgia | # 6 | 248 | 11,990.59 GWh |
| Hawaii | # 47 | 68 | 737.15 GWh |
| Idaho | # 42 | 145 | 1,633.17 GWh |
| Illinois | # 5 | 358 | 14,860.85 GWh |
| Indiana | # 17 | 210 | 7,386.37 GWh |
| Iowa | # 22 | 294 | 5,142.65 GWh |
| Kansas | # 24 | 181 | 5,016.68 GWh |
| Kentucky | # 21 | 58 | 5,314.31 GWh |
| Louisiana | # 14 | 83 | 8,104.32 GWh |
| Maine | # 45 | 208 | 1,219.14 GWh |
| Maryland | # 33 | 198 | 3,211.24 GWh |
| Massachusetts | # 43 | 624 | 1,590.93 GWh |
| Michigan | # 12 | 269 | 9,081.28 GWh |
| Minnesota | # 29 | 765 | 4,142.68 GWh |
| Mississippi | # 20 | 56 | 5,397.23 GWh |
| Missouri | # 23 | 121 | 5,122.89 GWh |
| State | Rank | Active Plants | May 2025 Generation |
|---|---|---|---|
| Montana | # 40 | 70 | 1,958.99 GWh |
| Nebraska | # 37 | 127 | 2,880.69 GWh |
| Nevada | # 30 | 110 | 4,010.09 GWh |
| New Hampshire | # 44 | 56 | 1,548.73 GWh |
| New Jersey | # 31 | 385 | 3,877.07 GWh |
| New Mexico | # 32 | 139 | 3,225.41 GWh |
| New York | # 10 | 929 | 10,057.90 GWh |
| North Carolina | # 9 | 909 | 10,631.50 GWh |
| North Dakota | # 35 | 57 | 3,062.36 GWh |
| Ohio | # 8 | 197 | 11,259.64 GWh |
| Oklahoma | # 18 | 139 | 6,659.06 GWh |
| Oregon | # 27 | 272 | 4,712.75 GWh |
| Pennsylvania | # 3 | 255 | 19,165.18 GWh |
| Rhode Island | # 46 | 97 | 795.05 GWh |
| South Carolina | # 13 | 200 | 8,379.29 GWh |
| South Dakota | # 41 | 52 | 1,667.11 GWh |
| Tennessee | # 19 | 86 | 5,858.87 GWh |
| Texas | # 1 | 890 | 49,337.47 GWh |
| Utah | # 39 | 122 | 2,500.89 GWh |
| Vermont | # 49 | 117 | 233.21 GWh |
| Virginia | # 16 | 233 | 7,447.37 GWh |
| Washington | # 15 | 134 | 7,969.22 GWh |
| West Virginia | # 34 | 39 | 3,129.59 GWh |
| Wisconsin | # 26 | 244 | 4,882.66 GWh |
| Wyoming | # 36 | 73 | 3,035.08 GWh |