Directory of Electric Companies in the United States
| Company Name | Company Location | Utility Type | Power Plants | EIA Annual Generation | EIA Latest Generation | FERC Lastest Date | FERC 2025Q1 Seller Transactions | FERC 2025Q1 Buyer Transactions |
|---|---|---|---|---|---|---|---|---|
| O.H. Hutchings CT, LLC | Washington, DC | - | - | - | Apr 2025 | $231.72k | ||
| Oak Leaf Solar 100 LLC | Montpelier, VT | - | - | - | Mar 2025 | $81.93k | ||
| Oak Leaf Solar 56 LLC | Montpelier, VT | - | - | - | Mar 2025 | $191.41k | ||
| Oak Leaf Solar Xviii LLC | Montpelier, VT | - | - | - | Mar 2025 | $127.68k | ||
| Oak Leaf Solar Xxii LLC | Montpelier, VT | - | - | - | Mar 2025 | $36.54k | ||
| Oak Leaf Solar XXVI LLC | Montpelier, VT | - | - | - | Mar 2025 | $59.43k | ||
| Oak Ridge Solar, LLC | Louisville, CO | - | - | - | Mar 2025 | $3.41M | ||
| Oak Trail Solar, LLC | Houston, TX | Independent Power Producer | - | - | - | Apr 2025 | $1.96M | |
| Oakland Power Company LLC | Irving, TX | - | - | - | Mar 2025 | $241.84k | ||
| Oasis ALTA, LLC | San Diego, CA | Independent Power Producer | - | - | - | Apr 2025 | $486.01k | |
| Oasis Power Partners, LLC | New York, NY | - | - | - | Apr 2025 | $1.89M | ||
| Occidental Power Services, Inc. | Houston, TX | - | - | - | Apr 2025 | $16.97M | ||
| Ocean State BTM, LLC | Wakefield, MA | - | - | - | Mar 2025 | $76.46k | ||
| Ocotillo Express LLC | Houston, TX | - | - | - | Mar 2025 | $12.05M | ||
| Odell Wind Farm, LLC | Oakville, ON | - | - | - | Mar 2025 | $6.92M | ||
| Ohio Edison Company | Akron, OH | - | - | - | Mar 2025 | $7.81k | $20.15M | |
| Oklahoma Wind, LLC | Juno Beach, FL | - | - | - | Mar 2025 | $521.76k | ||
| Old Middleboro Road Solar, LLC | Wakefield, MA | - | - | - | Feb 2025 | $25.53k | ||
| Oleander Power Project, Limited Partnership | Juno Beach, FL | - | - | - | Mar 2025 | $5.55M | ||
| Oliver Wind Energy Center II, LLC | Juno Beach, FL | - | - | - | Mar 2025 | $1.83M | ||
| Oliver Wind I, LLC | Juno Beach, FL | - | - | - | Mar 2025 | $1.09M | ||
| One Nation Energy Solutions, LLC | Houston, TX | - | - | - | Jun 2025 | $2.80M | ||
| Oneenergy Baker Point Solar, LLC | Asheville, NC | - | - | - | Mar 2025 | $36.92k | ||
| ONGP LLC | Reno, NV | - | - | - | Mar 2025 | $27.98M | ||
| Ontario Power Generation Energy Trading, Inc. | Toronto, ON | - | - | - | Mar 2025 | $3.61M | ||
| Ontelaunee Power Operating Company, LLC | Irving, TX | - | - | - | Apr 2025 | $55.51M | ||
| Orange And Rockland Utilities, Inc. | New York, NY | - | - | - | Apr 2025 | $8.98M | $1.91M | |
| Orangeville Energy Storage LLC | Chicago, IL | - | - | - | Apr 2025 | $299.15k | ||
| Orbit Bloom Energy, LLC | Washington, DC | - | - | - | Mar 2025 | $1.32M | ||
| Origin Wind Energy, LLC | Andover, MA | - | - | - | Mar 2025 | $3.68M | ||
| Ormat Dixie Valley LLC | Reno, NV | - | - | - | Mar 2025 | $7.24M | ||
| Ormesa LLC | Reno, NV | - | - | - | Mar 2025 | $4.93M | ||
| ORNI 14 LLC | Reno, NV | - | - | - | Mar 2025 | $1.71M | ||
| ORNI 18 LLC | Reno, NV | - | - | - | Mar 2025 | $223.04k | ||
| ORNI 34 LLC | Philadelphia, PA | - | - | - | Mar 2025 | $174.38k | ||
| ORNI 36 LLC | Reno, NV | - | - | - | Mar 2025 | $3.30M | ||
| ORNI 39 LLC | Reno, NV | - | - | - | Mar 2025 | $15.46M | ||
| ORNI 41 LLC | Reno, NV | - | - | - | Mar 2025 | $10.53M | ||
| ORNI 43 LLC | Reno, NV | - | - | - | Mar 2025 | $6.56M | ||
| ORNI 50 LLC | Reno, NV | - | - | - | Mar 2025 | $3.87M | ||
| Osage Wind, LLC | St. Louis, MO | Independent Power Producer | - | - | - | Mar 2025 | $4.65M | |
| Otter Creek Wind Farm LLC | Portland, OR | - | - | - | Mar 2025 | $4.93M | ||
| Oxbow Solar Farm 1, LLC | San Francisco, CA | - | - | - | Mar 2025 | $4.24M | ||
| Ohio Power Co | Columbus, OH | 1 | - | Feb 2021 | Apr 2025 | $479.45k | $150.43M | |
| Oakley Solar Project LLC | Walnut Creek, CA | Commercial | 1 | 2.5 GWh | Dec 2023 | - | ||
| OBP Cogen LLC | New York, NY | Commercial | 1 | 27.5 GWh | Dec 2023 | - | ||
| Origis Energy USA, Inc | Miami, FL | Independent Power Producer | 1 | 25.5 GWh | Dec 2023 | - | ||
| Orlando Cogen Ltd LP | Orlando, FL | Independent Power Producer | - | 1.1 TWh | Dec 2023 | - | ||
| Oroville Cogeneration LP | Independent Power Producer | - | 256.4 MWh | Dec 2023 | - | |||
| OTIS Elevator Company | Florence, SC | Industrial | 1 | 1.7 GWh | Dec 2023 | - | ||
| Otsego Paper Inc | Otsego, MI | Industrial | 1 | 174.4 GWh | Dec 2023 | - | ||
| Owlville Creek Solar 2, LLC | Boston, MA | Independent Power Producer | 1 | 7.5 GWh | Dec 2023 | - | ||
| OYA Pulaski LLC | Independent Power Producer | 1 | 6.5 GWh | Dec 2023 | - | |||
| OYA Robinson Road, LLC | Independent Power Producer | 1 | 9.5 GWh | Dec 2023 | - | |||
| OYA State Route 122, LLC | Independent Power Producer | 1 | 8.2 GWh | Dec 2023 | - | |||
| OYA Wayside Drive LLC | Independent Power Producer | 1 | 9.6 GWh | Dec 2023 | - | |||
| Olcese Water District | Bakersfield, CA | Municipally-Owned Utility | 1 | 26.5 GWh | Oct 2024 | - | ||
| Owyhee Irrigation District | Nyssa, OR | Political Subdivision | 3 | 51.0 GWh | Oct 2024 | - | ||
| Overlook Solar Partners, LLC | New York, NY | Independent Power Producer | 1 | 4.7 GWh | Nov 2024 | - | ||
| O'Neill Creek Solar LLC | Beaverton, OR | Independent Power Producer | 1 | 3.4 GWh | Dec 2024 | - | ||
| Oak Leaf Solar V LLC | Bethesda, MD | Independent Power Producer | 1 | 2.0 GWh | Dec 2024 | - | ||
| Oakdale&South San Joaquin Irrigation D. | Pinecrest, CA | Political Subdivision | 3 | 393.2 GWh | Dec 2024 | - | ||
| Oakwood Solar, LLC | Asheville, NC | Independent Power Producer | 1 | 10.2 GWh | Dec 2024 | - | ||
| Oberlin College | Oberlin, OH | Commercial | 1 | 2.7 GWh | Dec 2024 | - | ||
| Occidental College | LOS Angeles, CA | Independent Power Producer | 1 | 1.4 GWh | Dec 2024 | - | ||
| Occidental Permian Ltd | Houston, TX | Industrial | 1 | 155.8 GWh | Dec 2024 | - | ||
| Ocean State Power Co | Harrisville, RI | Independent Power Producer | 2 | 2.2 TWh | Dec 2024 | Mar 2025 | $16.04M | |
| OCI Energy LLC | San Antonio, TX | Independent Power Producer | 5 | 101.7 GWh | Dec 2024 | - | ||
| Oconto Electric Cooperative | Oconto Falls, WI | Cooperative | 1 | 6.0 GWh | Dec 2024 | Mar 2025 | $2.52M | |
| Odessa Energy Services LLC | Hermiston, OR | Independent Power Producer | 3 | 21.0 GWh | Dec 2024 | - | ||
| ODOM Solar, LLC | Nashville, TN | Independent Power Producer | 1 | 47.1 GWh | Dec 2024 | Mar 2025 | $238.58k | |
| Odyssey Solar, LLC | Asheville, NC | Independent Power Producer | 1 | 12.5 GWh | Dec 2024 | Mar 2025 | $202.71k | |
| Oe Il Solar 3, LLC | Boston, MA | Independent Power Producer | 1 | 4.7 GWh | Dec 2024 | - | ||
| OEE XIX, LLC | Findlay, OH | Industrial | 1 | 7.6 GWh | Dec 2024 | - | ||
| OEE Xxiii LLC | Findlay, OH | Industrial | 1 | 6.5 GWh | Dec 2024 | - | ||
| OEE Xxiv LLC | Findlay, OH | Industrial | 1 | 2.3 GWh | Dec 2024 | - | ||
| OEE XXV LLC | Findlay, OH | Industrial | 1 | 4.2 GWh | Dec 2024 | - | ||
| OEE XXVI LLC | Findlay, OH | Independent Power Producer | 1 | 7.4 GWh | Dec 2024 | - | ||
| OEE Xxviii LLC | Findlay, OH | Independent Power Producer | 1 | 6.7 GWh | Dec 2024 | - | ||
| OEE XXX LLC | Findlay, OH | Independent Power Producer | 1 | 4.8 GWh | Dec 2024 | - | ||
| OEE Xxxiii LLC | Findlay, OH | Independent Power Producer | 1 | 7.2 GWh | Dec 2024 | - | ||
| Off Airport Road - West, LLC | Boston, MA | Independent Power Producer | 1 | 6.9 GWh | Dec 2024 | - | ||
| Ogburn Solar, LLC | Jersey City, NJ | Independent Power Producer | 1 | 4.4 GWh | Dec 2024 | - | ||
| Ok Produce | Fresno, CA | Commercial | 1 | 3.7 GWh | Dec 2024 | - | ||
| Oklahoma Municipal Power Authority | Edmond, OK | State-Owned Utility | 5 | 277.6 GWh | Dec 2024 | Mar 2025 | $5.21M | |
| Old Court RD Solar, LLC | Arlington, VA | Independent Power Producer | 1 | 3.1 GWh | Dec 2024 | - | ||
| Old Frontier Solar III PV, LLC | Boston, MA | Independent Power Producer | 1 | 4.1 GWh | Dec 2024 | - | ||
| Old Gold Energy Center, LLC | Joice, IA | Independent Power Producer | 1 | 89.1 GWh | Dec 2024 | Apr 2025 | $220.05k | |
| Old Mill Solar | Juno Beach, FL | Independent Power Producer | 1 | 7.5 GWh | Dec 2024 | - | ||
| Oleander Holdings LLC | Juno Beach, FL | Independent Power Producer | 1 | 491.0 GWh | Dec 2024 | - | ||
| Olinda Trail Solar LLC | San Francisco, CA | Independent Power Producer | 1 | 2.2 GWh | Dec 2024 | - | ||
| Olmstead Solar II, LLC | San Francisco, CA | Independent Power Producer | 1 | 4.6 GWh | Dec 2024 | - | ||
| Olmsted County Public Works | Rochester, MN | Municipally-Owned Utility | 1 | 50.6 GWh | Dec 2024 | - | ||
| Olney Solar II, LLC | Boston, MA | Independent Power Producer | 1 | 4.6 GWh | Dec 2024 | - | ||
| OLS Energy-Agnews Inc. | Dublin, CA | Independent Power Producer | 1 | 14.1 GWh | Dec 2024 | Apr 2025 | $0 | |
| Olsen Power Partners | Annapolis, MD | Independent Power Producer | 1 | 13.8 GWh | Dec 2024 | - | ||
| One Ten Partners, LLC | LOS Angeles, CA | Independent Power Producer | 1 | 6.4 GWh | Dec 2024 | - | ||
| Oneida DG Solar, LLC | Juno Beach, FL | Independent Power Producer | 2 | 5.1 GWh | Dec 2024 | - | ||
| Onyx Asset Services Group | New York, NY | Independent Power Producer | 27 | 67.1 GWh | Dec 2024 | - | ||
| Open Mountain Energy LLC. | LEHI, UT | Independent Power Producer | 1 | 19.5 GWh | Dec 2024 | - |
Top Power Plants in United States
| Plant | Location | Annual Generation | Initial Operation Date | Last Update | Fuel Types |
|---|---|---|---|---|---|
| Arkansas Nuclear One | Russellville, Arkansas | 15 TWh | Nov 1974 | Apr 2025 | Nuclear |
| Barry | Bucks, Alabama | 15 TWh | Jan 1954 | Apr 2025 | Natural Gas : 93.7% Bituminous Coal : 6.3% |
| Beaver Valley | Shippingport, Pennsylvania | 15 TWh | Aug 1976 | Apr 2025 | Nuclear |
| Braidwood Generation Station | Braceville, Illinois | 20 TWh | Jun 1988 | Apr 2025 | Nuclear |
| Browns Ferry | Decatur, Alabama | 29 TWh | Jul 1974 | Apr 2025 | Nuclear |
| Brunswick Nuclear | Southport, North Carolina | 16 TWh | Oct 1975 | Apr 2025 | Nuclear |
| Byron Generating Station | Byron, Illinois | 19 TWh | Aug 1985 | Apr 2025 | Nuclear |
| Calvert Cliffs Nuclear Power Plant | Lusby, Maryland | 15 TWh | Apr 1975 | Apr 2025 | Nuclear |
| Catawba | York, South Carolina | 19 TWh | May 1985 | Apr 2025 | Nuclear |
| Comanche Peak | Glen Rose, Texas | 19 TWh | Jul 1990 | Apr 2025 | Nuclear |
| Crystal River | Crystal River, Florida | 15 TWh | Sep 1966 | Apr 2025 | Natural Gas : 78.9% Bituminous Coal : 21.0% |
| Diablo Canyon | Avila Beach, California | 18 TWh | Apr 1985 | Apr 2025 | Nuclear |
| Donald C Cook | Bridgman, Michigan | 18 TWh | Jul 1975 | Apr 2025 | Nuclear |
| Dresden Generating Station | Morris, Illinois | 15 TWh | Jul 1970 | Apr 2025 | Nuclear |
| Edwin I Hatch | Baxley, Georgia | 14 TWh | Nov 1975 | Apr 2025 | Nuclear |
| Gavin Power, LLC | Cheshire, Ohio | 12 TWh | Sep 1974 | Apr 2025 | Bituminous Coal : 99.5% Distillate Fuel Oil : 0.5% |
| Ghent | Ghent, Kentucky | 11 TWh | Jan 1974 | Apr 2025 | Bituminous Coal : 99.9% |
| Grand Coulee | Grand Coulee, Washington | 16 TWh | Feb 1941 | Apr 2025 | Water |
| Grand Gulf | Port Gibson, Mississippi | 11 TWh | Jun 1985 | Apr 2025 | Nuclear |
| Greensville County Power Station | Emporia, Virginia | 12 TWh | Nov 2018 | Apr 2025 | Natural Gas |
| Guernsey Power Station | Byesville, Ohio | 12 TWh | Jan 2023 | Apr 2025 | Natural Gas |
| H Allen Franklin Combined Cycle | Smiths, Alabama | 12 TWh | May 2002 | Apr 2025 | Natural Gas |
| Hines Energy Complex | Bartow, Florida | 12 TWh | Mar 1999 | Apr 2025 | Natural Gas |
| Jack McDonough | Smyrna, Georgia | 17 TWh | Apr 1971 | Apr 2025 | Natural Gas |
| James H Miller Jr | Quinton, Alabama | 19 TWh | Sep 1978 | Apr 2025 | Subbituminous Coal : 99.1% Natural Gas : 0.9% |
| Joseph M Farley | Columbia, Alabama | 15 TWh | Nov 1977 | Apr 2025 | Nuclear |
| Labadie | Labadie, Missouri | 15 TWh | May 1970 | Apr 2025 | Subbituminous Coal : 99.9% |
| LaSalle Generating Station | Marseilles, Illinois | 20 TWh | Dec 1983 | Apr 2025 | Nuclear |
| Limerick | Sanatoga, Pennsylvania | 20 TWh | Jan 1986 | Apr 2025 | Nuclear |
| McGuire | Huntersville, North Carolina | 19 TWh | Aug 1981 | Apr 2025 | Nuclear |
| Millstone | Waterford, Connecticut | 17 TWh | Nov 1975 | Apr 2025 | Nuclear |
| Monroe (MI) | Monroe, Michigan | 15 TWh | Oct 1969 | Apr 2025 | Subbituminous Coal : 74.5% Bituminous Coal : 15.8% Petroleum Coke : 9.6% |
| Nine Mile Point Nuclear Station | Lycoming, New York | 16 TWh | Nov 1969 | Apr 2025 | Nuclear |
| North Anna | Mineral, Virginia | 16 TWh | May 1978 | Apr 2025 | Nuclear |
| Oak Grove (TX) | Franklin, Texas | 12 TWh | Mar 2010 | Apr 2025 | Lignite Coal : 98.0% Natural Gas : 2.0% |
| Oconee | Seneca, South Carolina | 22 TWh | Jun 1973 | Apr 2025 | Nuclear |
| Palo Verde | Wintersburg, Arizona | 32 TWh | Dec 1985 | Apr 2025 | Nuclear |
| Peach Bottom | Delta, Pennsylvania | 22 TWh | Jun 1974 | Apr 2025 | Nuclear |
| PSEG Salem Generating Station | Hancocks Bridge, New Jersey | 18 TWh | May 1971 | Apr 2025 | Nuclear |
| Quad Cities Generating Station | Cordova, Illinois | 15 TWh | Nov 1972 | Apr 2025 | Nuclear |
| Robert Moses Niagara | Lewiston, New York | 15 TWh | Dec 1960 | Apr 2025 | Water |
| South Texas Project | Wadsworth, Texas | 21 TWh | Jul 1988 | Apr 2025 | Nuclear |
| St Lucie | Jensen Beach, Florida | 16 TWh | Apr 1976 | Apr 2025 | Nuclear |
| Surry | Surry, Virginia | 13 TWh | Nov 1972 | Apr 2025 | Nuclear |
| TalenEnergy Susquehanna | Berwick, Pennsylvania | 20 TWh | May 1983 | Apr 2025 | Nuclear |
| Turkey Point | Homestead, Florida | 21 TWh | Mar 1967 | Apr 2025 | Nuclear : 66.2% Natural Gas : 33.8% |
| Vogtle | Waynesboro, Georgia | 35 TWh | Apr 1987 | Apr 2025 | Nuclear |
| W A Parish | Thompsons, Texas | 14 TWh | May 1958 | Apr 2025 | Subbituminous Coal : 82.6% Natural Gas : 17.4% |
| Watts Bar Nuclear Plant | Spring City, Tennessee | 15 TWh | Apr 1996 | Apr 2025 | Nuclear |
| West County Energy Center | Loxahatchee, Florida | 19 TWh | Jul 2009 | Apr 2025 | Natural Gas : 99.9% |