Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Owlville Creek Solar 2, LLC | Owlville Creek Solar 2, LLC | Canastota, NY | New York Independent System Operator (NYIS) | 7.2 GWh | Nov 2020 | Dec 2023 | Solar |
| Owlville Creek Solar, LLC | Owlville Creek Solar, LLC | Canastota, NY | New York Independent System Operator (NYIS) | 8.4 GWh | Nov 2020 | Dec 2024 | Solar |
| Owyhee Dam Power Project | Owyhee Irrigation District | Nyssa, OR | Idaho Power Company (IPCO) | 27.6 GWh | Jul 1985 | Oct 2024 | Water |
| Oxbow (CA) | Placer County Water Agency | Foresthill, CA | California Independent System Operator (CISO) | 29.2 GWh | Sep 1966 | Sep 2024 | Water |
| Oxbow Creek | Oxbow Creek Energy LLC | Factoryville, PA | PJM Interconnection, LLC (PJM) | 41.0 GWh | Nov 2019 | Dec 2024 | Natural Gas |
| Oxbow (OR) | Idaho Power Co | Oxbow, OR | Idaho Power Company (IPCO) | 965.3 GWh | Jun 1961 | Dec 2024 | Water |
| Oxbow Solar 1 | Lightsource Renewable Energy Asset Management, LLC | New Roads, LA | Midcontinent Independent System Operator, Inc. (MISO) | 529.2 GWh | Jun 2024 | May 2025 | Solar |
| Oxford | CVI CleanCapital Solar 6 | Oxford, MA | ISO New England (ISNE) | 4.2 GWh | Jun 2014 | Dec 2024 | Solar |
| Oxford Dam | Duke Energy Carolinas, LLC | Conover, NC | Duke Energy Carolinas (DUK) | 91.9 GWh | Mar 1928 | Dec 2024 | Water |
| Oxford (KS) | City of Oxford - (KS) | Oxford, KS | Southwest Power Pool (SWPP) | 10.0 MWh | Jun 1999 | Dec 2024 | Distillate Fuel Oil |
| Oxford (NE) | Village of Oxford - (NE) | Oxford, NE | Southwest Power Pool (SWPP) | 27.0 MWh | Jul 1953 | Dec 2024 | Natural Gas : 89.8% Distillate Fuel Oil : 10.2% |
| Oxford PV - BD Solar Oxford LLC | BD Solar Oxford LLC | Oxford, ME | ISO New England (ISNE) | 14.7 GWh | May 2021 | Dec 2024 | Solar |
| Oxford Solar | Citizens Enterprises Corporation | Oxford, MA | ISO New England (ISNE) | 6.3 GWh | Jan 2020 | Dec 2024 | Solar |
| Oxnard | Procter&Gamble Paper Products Co-Oxnard | Oxnard, CA | California Independent System Operator (CISO) | 482.2 GWh | Jun 1982 | May 2025 | Natural Gas |
| Oxnard Paper Mill | New-Indy, Oxnard LLC | Oxnard, CA | California Independent System Operator (CISO) | 190.8 GWh | Feb 1986 | Apr 2025 | Natural Gas |
| Oxnard Wastewater Treatment Plant | Oxnard City of | Oxnard, CA | California Independent System Operator (CISO) | 4.4 GWh | Jul 1981 | May 2025 | Other Biomass Gas : 94.3% Natural Gas : 5.7% |
| Oxon Run CREF | Oxon Run Community Renewable Energy Facility | Washington, DC | PJM Interconnection, LLC (PJM) | 1.5 GWh | Nov 2021 | Dec 2024 | Solar |
| Oxy Renewable Energy - Goldsmith | Oxy Renewable Energy LLC | Goldsmith, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 40.5 GWh | Apr 2020 | Dec 2024 | Solar |
| OYA Church Road | OYA Church Road A LLC | Baldwinsville, NY | New York Independent System Operator (NYIS) | 8.2 GWh | Nov 2022 | Dec 2024 | Solar |
| OYA Main Street | OYA Main Street LLC | York, NY | New York Independent System Operator (NYIS) | 8.1 GWh | Nov 2022 | Dec 2024 | Solar |
| OYA Pulaski | OYA Pulaski LLC | Pulaski, NY | New York Independent System Operator (NYIS) | 6.4 GWh | Oct 2022 | Dec 2023 | Solar |
| OYA Robinson Road | OYA Robinson Road, LLC | Orleans, NY | New York Independent System Operator (NYIS) | 9.2 GWh | May 2022 | Dec 2023 | Solar |
| OYA State Route 122 | OYA State Route 122, LLC | Constable, NY | New York Independent System Operator (NYIS) | 7.8 GWh | Nov 2021 | Dec 2023 | Solar |
| OYA Wayside Drive | OYA Wayside Drive LLC | Watertown, NY | New York Independent System Operator (NYIS) | 9.5 GWh | Sep 2022 | Dec 2023 | Solar |
| Oyster Creek Unit VIII | Dow Chemical Company-Oyster Creek VIII | Freeport, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 2.2 TWh | Sep 1994 | May 2025 | Natural Gas : 99.9% |
| Ozark | USCE-Little Rock District | Ozark, AR | Southwestern Power Administration (SPA) | 314.7 GWh | Oct 1972 | Dec 2024 | Water |
| Ozark Beach | Empire District Electric Co | Forsyth, MO | Southwest Power Pool (SWPP) | 53.2 GWh | May 1931 | Dec 2024 | Water |
| Ozark Solar Park | Today's Power, Inc. | Lincoln, AR | Southwest Power Pool (SWPP) | 4.5 GWh | Jun 2021 | Dec 2024 | Solar |
| Ozarks Natural Energy Community Solar | Ozarks Electric Coop Corp - (AR) | Springdale, AR | Southwest Power Pool (SWPP) | 935.0 MWh | Mar 2016 | Dec 2024 | Solar |
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 |