Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Ormond Beach | Ormond Beach Power, LLC | Oxnard, CA | California Independent System Operator (CISO) | 43.1 GWh | Jul 1971 | Aug 2025 | Natural Gas |
| Arrowleaf Solar and Storage | ORNI 30 LLC | Brawley, CA | Imperial Irrigation District (IID) | 673.0 MWh | - | Dec 2025 | Solar |
| Don A Campbell 2 Geothermal | ORNI 37 LLC | Luning, NV | Nevada Power Company (NEVP) | 93.5 GWh | Aug 2015 | Dec 2024 | Geothermal |
| Don A Campbell 1 Geothermal | ORNI 47, LLC | Gabbs, NV | Nevada Power Company (NEVP) | 110.0 GWh | Dec 2013 | Dec 2024 | Geothermal |
| Western Trail Wind, LLC | Orsted Onshore North America | Electra, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 1.1 TWh | Mar 2022 | Dec 2025 | Wind |
| South Fork Wind | Orsted Wind Power North America LLC | East Hampton, NY | New York Independent System Operator (NYIS) | 536.3 GWh | Jun 2024 | Dec 2025 | Wind |
| Osborn Wind Energy | Osborn Wind Energy LLC | Stewartsville, MO | Southwest Power Pool (SWPP) | 671.9 GWh | Nov 2016 | Dec 2025 | Wind |
| Osceola Windpower II | Osceola Windpower II | Harris, IA | Midcontinent Independent System Operator, Inc. (MISO) | 200.3 GWh | Aug 2008 | Dec 2025 | Wind |
| Osceola Windpower LLC | Osceola Windpower LLC | Harris, IA | Southwest Power Pool (SWPP) | 393.8 GWh | Jun 2008 | Dec 2025 | Wind |
| OSLH, LLC | OSLH, LLC | Bend, OR | PacifiCorp West (PACW) | 22.2 GWh | Nov 2016 | Dec 2024 | Solar |
| High Dam | Oswego City of | Oswego, NY | New York Independent System Operator (NYIS) | 25.6 GWh | Jul 1928 | Dec 2024 | Water |
| Oswego County Energy Recovery | Oswego County | Fulton, NY | New York Independent System Operator (NYIS) | 8.1 GWh | Jan 1986 | Dec 2024 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| Oswego Harbor Power | Oswego Harbor Power | Oswego, NY | New York Independent System Operator (NYIS) | 85.1 GWh | May 1975 | Dec 2025 | Residual Fuel Oil : 99.1% Natural Gas : 0.9% |
| Otay Mesa Generating Project | Otay Mesa Energy Center LLC | San Diego, CA | California Independent System Operator (CISO) | 1.6 TWh | Sep 2009 | Dec 2025 | Natural Gas |
| Otis Elevator Company Solar | Otis Elevator Company | Florence, SC | Duke Energy Carolinas (DUK) | 1.5 GWh | Apr 2018 | Dec 2024 | Solar |
| Otsego Mill Power Plant | Otsego Paper Inc | Otsego, MI | Midcontinent Independent System Operator, Inc. (MISO) | 165.5 GWh | Oct 1995 | Dec 2024 | Natural Gas |
| Otter Creek Ethanol Poet - Ashton | Otter Creek Ethanol LLC - Poet Ashton | Ashton, IA | Midcontinent Independent System Operator, Inc. (MISO) | 44.8 GWh | Feb 2004 | Dec 2025 | Natural Gas |
| Gardner - Otter River Road | Otter River Road Solar LLC | Gardner, MA | ISO New England (ISNE) | 4.2 GWh | Sep 2019 | Dec 2024 | Solar |
| Hoot Lake Solar | Otter Tail Power Co | Fergus Falls, MN | Midcontinent Independent System Operator, Inc. (MISO) | 73.3 GWh | Jul 2023 | Dec 2025 | Solar |
| Astoria Station | Otter Tail Power Co | Astoria, SD | Midcontinent Independent System Operator, Inc. (MISO) | 455.4 GWh | Mar 2021 | Dec 2025 | Natural Gas |
| Hoot Lake | Otter Tail Power Co | Fergus Falls, MN | Midcontinent Independent System Operator, Inc. (MISO) | 3.3 GWh | Aug 1914 | Dec 2024 | Water |
| Ashtabula Wind III LLC | Otter Tail Power Co | Luverne, ND | Midcontinent Independent System Operator, Inc. (MISO) | 142.6 GWh | Nov 2010 | Dec 2024 | Wind |
| Merricourt Wind Energy Center | Otter Tail Power Co | Kulm, ND | Midcontinent Independent System Operator, Inc. (MISO) | 583.5 GWh | Nov 2020 | Dec 2025 | Wind |
| Langdon Wind Energy Center | Otter Tail Power Co | Langdon, ND | Midcontinent Independent System Operator, Inc. (MISO) | 94.9 GWh | Nov 2007 | Dec 2024 | Wind |
| Ashtabula Wind Energy Center | Otter Tail Power Co | Luverne, ND | Midcontinent Independent System Operator, Inc. (MISO) | 116.1 GWh | Sep 2008 | Dec 2024 | Wind |
| Luverne Wind Energy Center | Otter Tail Power Co | Luverne, ND | Midcontinent Independent System Operator, Inc. (MISO) | 110.1 GWh | Aug 2009 | Dec 2024 | Wind |
| Lake Preston | Otter Tail Power Co | Lake Preston, SD | Midcontinent Independent System Operator, Inc. (MISO) | 86.0 MWh | May 1978 | Dec 2024 | Distillate Fuel Oil |
| Jamestown | Otter Tail Power Co | Jamestown, ND | Midcontinent Independent System Operator, Inc. (MISO) | 194.0 MWh | Apr 1976 | Dec 2024 | Distillate Fuel Oil |
| Big Stone | Otter Tail Power Co | Big Stone City, SD | Midcontinent Independent System Operator, Inc. (MISO) | 2.0 TWh | Apr 1975 | Dec 2025 | Subbituminous Coal : 99.8% |
| Coyote | Otter Tail Power Co | Beulah, ND | Midcontinent Independent System Operator, Inc. (MISO) | 2.1 TWh | Apr 1981 | Dec 2025 | Lignite Coal : 99.7% |
| Solway CT | Otter Tail Power Co | Solway, MN | Midcontinent Independent System Operator, Inc. (MISO) | 124.7 GWh | Apr 2003 | Dec 2024 | Natural Gas |
| Ottumwa City of | Ottumwa City of | Ottumwa, IA | Midcontinent Independent System Operator, Inc. (MISO) | 4.5 GWh | Jul 1931 | Apr 2024 | Water |
| Outback Solar At Christmas Valley | Outback Solar, LLC | Christmas Valley, OR | Bonneville Power Administration (BPAT) | 6.6 GWh | Sep 2012 | Dec 2024 | Solar |
| ME - EDFR - Phase I - Bristol | Overlook Solar Partners, LLC | Bristol, ME | ISO New England (ISNE) | 5.8 GWh | Nov 2023 | Nov 2024 | Solar |
| Overman Solar | Overman Solar, LLC | Goldsboro, NC | Duke Energy Progress East (CPLE) | 10.7 GWh | Nov 2021 | Dec 2024 | Solar |
| Owen Solar | Owen Solar LLC | Lincolnton, NC | Duke Energy Carolinas (DUK) | 8.0 GWh | Mar 2016 | Dec 2024 | Solar |
| Owlville Creek Solar 2, LLC | Owlville Creek Solar 2, LLC | Canastota, NY | New York Independent System Operator (NYIS) | 7.8 GWh | Nov 2020 | Dec 2024 | 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 |
| Tunnel 1 Power Project | Owyhee Irrigation District | Nyssa, OR | Idaho Power Company (IPCO) | 22.4 GWh | May 1993 | Oct 2024 | Water |
| Owyhee Dam Power Project | Owyhee Irrigation District | Nyssa, OR | Idaho Power Company (IPCO) | 27.6 GWh | Jul 1985 | Oct 2024 | Water |
| Michell Butte Power Project | Owyhee Irrigation District | Nyssa, OR | Idaho Power Company (IPCO) | 5.3 GWh | Apr 1989 | Oct 2024 | Water |
| Oxbow Creek | Oxbow Creek Energy LLC | Factoryville, PA | PJM Interconnection, LLC (PJM) | 41.0 GWh | Nov 2019 | Dec 2024 | Natural Gas |
| Oxnard Wastewater Treatment Plant | Oxnard City of | Oxnard, CA | California Independent System Operator (CISO) | 3.9 GWh | Jul 1981 | Dec 2025 | Other Biomass Gas : 95.3% Natural Gas : 4.7% |
| 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 |
| Houston Chemical Complex Battleground | Oxy Vinyls LP | Houston, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 1.9 TWh | Apr 1982 | Dec 2025 | Natural Gas : 99.4% Other Gas : 0.6% |
| Moore Road Community Solar | OYA 2643 Moore Road LLC | Ransomville, NY | New York Independent System Operator (NYIS) | 6.3 GWh | Nov 2019 | Dec 2024 | Solar |
| Blanchard Road 2 Community Solar | OYA Blanchard Road 2 LLC | Clayton, NY | New York Independent System Operator (NYIS) | 8.3 GWh | Nov 2019 | Dec 2024 | Solar |
| Blanchard Road 1 Community Solar | OYA Blanchard Road LLC | Clayton, NY | New York Independent System Operator (NYIS) | 7.1 GWh | Nov 2019 | 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 |
| Great Lakes Seaway Community Solar | OYA Great Lakes Seaway LLC | Clayton, NY | New York Independent System Operator (NYIS) | 7.9 GWh | Nov 2019 | 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 |
| NYS Rte 12 Community Solar | OYA NYS Rte 12 LLC | Clayton, NY | New York Independent System Operator (NYIS) | 6.8 GWh | Nov 2019 | Dec 2024 | Solar |
| OYA Pulaski | OYA Pulaski LLC | Pulaski, NY | New York Independent System Operator (NYIS) | 5.8 GWh | Oct 2022 | Dec 2024 | Solar |
| OYA Robinson Road | OYA Robinson Road, LLC | Orleans, NY | New York Independent System Operator (NYIS) | 9.7 GWh | May 2022 | Dec 2024 | Solar |
| OYA State Route 122 | OYA State Route 122, LLC | Constable, NY | New York Independent System Operator (NYIS) | 6.9 GWh | Nov 2021 | Dec 2024 | Solar |
| OYA Wayside Drive | OYA Wayside Drive LLC | Watertown, NY | New York Independent System Operator (NYIS) | 8.0 GWh | Sep 2022 | Dec 2024 | Solar |
| White River Lock and Dam 3 | Ozark Hydro Management, LLC | Marcella, AR | Southwestern Power Administration (SPA) | 18.3 GWh | Jul 2006 | Dec 2025 | Water |
| White River Lock and Dam 2 | Ozark Hydro Management, LLC | Locust Grove, AR | Southwestern Power Administration (SPA) | 12.3 GWh | Feb 2007 | Dec 2025 | Water |
| White River Lock and Dam 1 | Ozark Hydro Management, LLC | Batesville, AR | Southwestern Power Administration (SPA) | 14.6 GWh | May 2007 | Dec 2025 | Water |
| Ozarks Natural Energy Community Solar | Ozarks Electric Coop Corp - (AR) | Springdale, AR | Southwest Power Pool (SWPP) | 935.0 MWh | Mar 2016 | Dec 2024 | Solar |
| P66 Rodeo Solar | P66 Rodeo Solar | Rodeo, CA | California Independent System Operator (CISO) | 41.7 GWh | Mar 2023 | Dec 2025 | Solar |
| Waipio Peninsula | Pacific Energy Solutions, LLC | Waipio, HI | (HECO) | 17.5 GWh | Sep 2015 | Dec 2024 | Solar |
| Gateway Generating Station | Pacific Gas & Electric Co. | Antioch, CA | California Independent System Operator (CISO) | 2.9 TWh | Dec 2008 | Dec 2025 | Natural Gas |
| Vaca Dixon Solar Station | Pacific Gas & Electric Co. | Vacaville, CA | California Independent System Operator (CISO) | 3.2 GWh | Nov 2009 | Dec 2024 | Solar |
| Colusa Generating Station | Pacific Gas & Electric Co. | Maxwell, CA | California Independent System Operator (CISO) | 2.6 TWh | Nov 2010 | Dec 2025 | Natural Gas |
| Giffen | Pacific Gas & Electric Co. | TBD, CA | California Independent System Operator (CISO) | 13.6 GWh | May 2012 | Dec 2024 | Solar |
| Gates Solar Station | Pacific Gas & Electric Co. | Huron, CA | California Independent System Operator (CISO) | 31.7 GWh | May 2013 | Dec 2024 | Solar |
| Guernsey Solar Station | Pacific Gas & Electric Co. | Hanford, CA | California Independent System Operator (CISO) | 22.7 GWh | Jul 2013 | Dec 2024 | Solar |
| Huron Solar Station | Pacific Gas & Electric Co. | Huron, CA | California Independent System Operator (CISO) | 28.8 GWh | May 2012 | Dec 2024 | Solar |
| Cantua Solar Station | Pacific Gas & Electric Co. | TBD, CA | California Independent System Operator (CISO) | 31.2 GWh | May 2012 | Dec 2024 | Solar |
| West Gates Solar Station | Pacific Gas & Electric Co. | Huron, CA | California Independent System Operator (CISO) | 19.2 GWh | Apr 2013 | Dec 2024 | Solar |
| Westside Solar Station | Pacific Gas & Electric Co. | Five Points, CA | California Independent System Operator (CISO) | 13.9 GWh | Jul 2011 | Dec 2024 | Solar |
| Five Points Solar Station | Pacific Gas & Electric Co. | Five Points, CA | California Independent System Operator (CISO) | 15.4 GWh | Aug 2011 | Dec 2024 | Solar |
| Stroud Solar Station | Pacific Gas & Electric Co. | Helm, CA | California Independent System Operator (CISO) | 25.0 GWh | Aug 2011 | Oct 2024 | Solar |
| James B Black | Pacific Gas & Electric Co. | Big Bend, CA | California Independent System Operator (CISO) | 623.8 GWh | Nov 1965 | Dec 2025 | Water |
| Kings River PH | Pacific Gas & Electric Co. | Balch Camp, CA | California Independent System Operator (CISO) | 106.9 GWh | Feb 1962 | Dec 2024 | Water |
| Spaulding 3 | Pacific Gas & Electric Co. | Emigrant Gap, CA | California Independent System Operator (CISO) | 15.6 GWh | Jan 1929 | Dec 2024 | Water |
| Haas | Pacific Gas & Electric Co. | Balch Camp, CA | California Independent System Operator (CISO) | 208.3 GWh | Nov 1958 | Nov 2025 | Water |
| Electra | Pacific Gas & Electric Co. | Jackson, CA | California Independent System Operator (CISO) | 291.4 GWh | May 1948 | Dec 2025 | Water |
| Stanislaus | Pacific Gas & Electric Co. | Vallecito, CA | California Independent System Operator (CISO) | 315.8 GWh | Feb 1963 | Oct 2024 | Water |
| Spring Gap | Pacific Gas & Electric Co. | Long Barn, CA | California Independent System Operator (CISO) | 29.8 GWh | Aug 1921 | Nov 2024 | Water |
| Pit 3 | Pacific Gas & Electric Co. | Burney, CA | California Independent System Operator (CISO) | 332.8 GWh | Jun 1925 | Dec 2024 | Water |
| Tiger Creek | Pacific Gas & Electric Co. | Pioneer, CA | California Independent System Operator (CISO) | 225.1 GWh | May 1931 | Dec 2024 | Water |
| Halsey | Pacific Gas & Electric Co. | Auburn, CA | California Independent System Operator (CISO) | 7.6 GWh | Nov 1916 | Oct 2024 | Water |
| Belden | Pacific Gas & Electric Co. | Belden, CA | California Independent System Operator (CISO) | 243.3 GWh | Aug 1969 | Dec 2025 | Water |
| Balch 2 | Pacific Gas & Electric Co. | Balch Camp, CA | California Independent System Operator (CISO) | 443.4 GWh | Oct 1958 | Dec 2024 | Water |
| Balch 1 | Pacific Gas & Electric Co. | Balch Camp, CA | California Independent System Operator (CISO) | 138.8 GWh | Jan 1927 | Dec 2024 | Water |
| Newcastle | Pacific Gas & Electric Co. | Auburn, CA | California Independent System Operator (CISO) | 7.5 GWh | Nov 1986 | Dec 2024 | Water |
| Alta Powerhouse | Pacific Gas & Electric Co. | Alta, CA | California Independent System Operator (CISO) | 1.4 GWh | Oct 1902 | Dec 2024 | Water |
| A G Wishon | Pacific Gas & Electric Co. | North Fork, CA | California Independent System Operator (CISO) | 21.6 GWh | Aug 1910 | Dec 2024 | Water |
| Wise | Pacific Gas & Electric Co. | Auburn, CA | California Independent System Operator (CISO) | 31.5 GWh | Feb 1917 | Oct 2024 | Water |
| West Point PH | Pacific Gas & Electric Co. | Pioneer, CA | California Independent System Operator (CISO) | 88.9 GWh | Oct 1948 | Jun 2024 | Water |
| Humboldt Bay | Pacific Gas & Electric Co. | Eureka, CA | California Independent System Operator (CISO) | 347.8 GWh | Aug 2010 | Dec 2025 | Natural Gas : 99.6% |
| Hat Creek 2 | Pacific Gas & Electric Co. | Burney, CA | California Independent System Operator (CISO) | 26.0 GWh | Aug 1921 | Dec 2024 | Water |
| Pit 1 | Pacific Gas & Electric Co. | Burney, CA | California Independent System Operator (CISO) | 188.4 GWh | Aug 1922 | Dec 2024 | Water |
| Toadtown | Pacific Gas & Electric Co. | Magalia, CA | California Independent System Operator (CISO) | 2.4 GWh | Mar 1986 | Oct 2024 | Water |
| Drum 2 | Pacific Gas & Electric Co. | Alta, CA | California Independent System Operator (CISO) | 148.6 GWh | Nov 1965 | Dec 2024 | Water |
| Dutch Flat | Pacific Gas & Electric Co. | Alta, CA | California Independent System Operator (CISO) | 27.1 GWh | Feb 1943 | Dec 2024 | Water |
| Hat Creek 1 | Pacific Gas & Electric Co. | Burney, CA | California Independent System Operator (CISO) | 26.8 GWh | Jul 1921 | Dec 2024 | Water |
Summary of Power Plants By State
Figures are based on December 2025 generation numbers.| State | Rank | Active Plants | Dec 2025 Generation |
|---|---|---|---|
| Alabama | # 7 | 76 | 12,766.12 GWh |
| Alaska | # 48 | 139 | 625.46 GWh |
| Arizona | # 16 | 183 | 8,962.31 GWh |
| Arkansas | # 29 | 114 | 5,525.50 GWh |
| California | # 5 | 1,683 | 14,393.99 GWh |
| Colorado | # 31 | 297 | 4,649.38 GWh |
| Connecticut | # 34 | 162 | 4,087.83 GWh |
| Delaware | # 49 | 33 | 469.96 GWh |
| District of Columbia | # 51 | 16 | 14.80 GWh |
| Florida | # 3 | 333 | 19,379.32 GWh |
| Georgia | # 8 | 248 | 12,492.24 GWh |
| Hawaii | # 46 | 70 | 814.97 GWh |
| Idaho | # 41 | 146 | 2,123.12 GWh |
| Illinois | # 4 | 379 | 17,546.79 GWh |
| Indiana | # 13 | 214 | 9,789.95 GWh |
| Iowa | # 20 | 293 | 7,310.28 GWh |
| Kansas | # 28 | 183 | 5,586.75 GWh |
| Kentucky | # 22 | 60 | 6,716.43 GWh |
| Louisiana | # 17 | 84 | 8,587.03 GWh |
| Maine | # 45 | 215 | 1,484.81 GWh |
| Maryland | # 37 | 203 | 3,225.85 GWh |
| Massachusetts | # 43 | 640 | 2,073.13 GWh |
| Michigan | # 11 | 269 | 11,734.82 GWh |
| Minnesota | # 27 | 764 | 5,712.30 GWh |
| Mississippi | # 24 | 56 | 6,090.79 GWh |
| Missouri | # 23 | 125 | 6,623.76 GWh |
| State | Rank | Active Plants | Dec 2025 Generation |
|---|---|---|---|
| Montana | # 40 | 70 | 2,639.28 GWh |
| Nebraska | # 36 | 125 | 3,667.32 GWh |
| Nevada | # 38 | 114 | 3,217.22 GWh |
| New Hampshire | # 44 | 56 | 1,878.83 GWh |
| New Jersey | # 30 | 387 | 5,182.27 GWh |
| New Mexico | # 35 | 142 | 3,818.41 GWh |
| New York | # 10 | 950 | 11,800.05 GWh |
| North Carolina | # 9 | 904 | 12,153.04 GWh |
| North Dakota | # 33 | 58 | 4,218.72 GWh |
| Ohio | # 6 | 198 | 13,425.53 GWh |
| Oklahoma | # 18 | 141 | 7,637.23 GWh |
| Oregon | # 21 | 272 | 6,788.64 GWh |
| Pennsylvania | # 2 | 252 | 22,539.49 GWh |
| Rhode Island | # 47 | 100 | 775.70 GWh |
| South Carolina | # 15 | 207 | 8,967.44 GWh |
| South Dakota | # 42 | 52 | 2,122.20 GWh |
| Tennessee | # 19 | 88 | 7,328.17 GWh |
| Texas | # 1 | 947 | 46,150.81 GWh |
| Utah | # 39 | 125 | 2,845.12 GWh |
| Vermont | # 50 | 116 | 189.85 GWh |
| Virginia | # 14 | 237 | 9,421.16 GWh |
| Washington | # 12 | 135 | 10,635.09 GWh |
| West Virginia | # 26 | 39 | 5,763.55 GWh |
| Wisconsin | # 25 | 243 | 5,804.32 GWh |
| Wyoming | # 32 | 70 | 4,436.68 GWh |