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 2025Q2 Seller Transactions | FERC 2025Q2 Buyer Transactions |
|---|---|---|---|---|---|---|---|---|
| Prospero Energy Project, LLC (Longroad) | Boston, MA | Independent Power Producer | 1 | 789.9 GWh | Feb 2026 | - | ||
| PNY Bess LLC | Boston, MA | - | - | - | Oct 2025 | $400.66k | ||
| Pleasantdale Road Solar, LLC | Boston, MA | Independent Power Producer | 1 | 1.4 GWh | Dec 2024 | - | ||
| Plainfield Solar LLC | Boston, MA | Independent Power Producer | 1 | 3.6 GWh | Dec 2024 | - | ||
| Peterson Road Solar, LLC | Boston, MA | Independent Power Producer | 1 | 4.6 GWh | Dec 2024 | - | ||
| Pendleton Solar 1, LLC | Boston, MA | Independent Power Producer | 1 | 7.7 GWh | Dec 2024 | - | ||
| Owlville Creek Solar, LLC | Boston, MA | Independent Power Producer | 1 | 8.5 GWh | Dec 2024 | - | ||
| Owlville Creek Solar 2, LLC | Boston, MA | Independent Power Producer | 1 | 8.0 GWh | Dec 2024 | - | ||
| Orsted Wind Power North America LLC | Boston, MA | Independent Power Producer | 3 | 567.5 GWh | Feb 2026 | - | ||
| Oriana Solar LLC | Boston, MA | Independent Power Producer | 1 | 175.5 GWh | Feb 2026 | - | ||
| Orchard Ranch Solar, LLC | Boston, MA | Independent Power Producer | 1 | 47.1 GWh | Feb 2026 | - | ||
| Orange Grove | Boston, MA | Independent Power Producer | 1 | 212.6 GWh | Feb 2026 | - | ||
| Olney Solar II, LLC | Boston, MA | Independent Power Producer | 1 | 4.6 GWh | Dec 2024 | - | ||
| Old Frontier Solar III PV, LLC | Boston, MA | Independent Power Producer | 1 | 4.1 GWh | Dec 2024 | - | ||
| Off Airport Road - West, LLC | Boston, MA | Independent Power Producer | 1 | 6.9 GWh | Dec 2024 | - | ||
| Oe Il Solar 3, LLC | Boston, MA | Independent Power Producer | 1 | 4.7 GWh | Dec 2024 | - | ||
| Niagara Wind Power LLC | Boston, MA | Independent Power Producer | - | - | Dec 2011 | Oct 2025 | $580.10k | |
| Niagara Depot Solar, LLC | Boston, MA | Independent Power Producer | 1 | 5.2 GWh | Dec 2024 | - | ||
| Nexamp Peak, LLC | Boston, MA | Independent Power Producer | 1 | 2.3 GWh | Dec 2024 | - | ||
| Newfield Solar LLC | Boston, MA | Independent Power Producer | 1 | 8.5 GWh | Dec 2024 | - | ||
| New Hampshire Hydro Associates | Boston, MA | Independent Power Producer | 1 | 3.1 GWh | Dec 2024 | - | ||
| MWRA Charlestown | Boston, MA | State-Owned Utility | 1 | 1.3 GWh | Dec 2024 | - | ||
| Mustang Hills, LLC (Longroad) | Boston, MA | Independent Power Producer | 1 | 312.4 GWh | Dec 2024 | Jun 2025 | $11.94M | |
| Murphy Flat Power, LLC | Boston, MA | Independent Power Producer | 1 | 42.5 GWh | Feb 2026 | - | ||
| Montague Road Solar, LLC | Boston, MA | Independent Power Producer | 1 | 4.9 GWh | Dec 2024 | - | ||
| Monson Solar, LLC | Boston, MA | Independent Power Producer | 1 | 3.5 GWh | Dec 2024 | - | ||
| MILO CSG, LLC | Boston, MA | Independent Power Producer | 1 | 7.1 GWh | Dec 2024 | - | ||
| Milford Wind Corridor Stage II LLC | Boston, MA | Independent Power Producer | 1 | 212.6 GWh | Feb 2026 | - | ||
| Milford Wind Corridor Phase II, LLC | Boston, MA | - | - | - | Sep 2025 | $2.05M | $18.54k | |
| Milford Wind Corridor Phase I, LLC (Longroad) | Boston, MA | Independent Power Producer | 1 | 432.1 GWh | Feb 2026 | - | ||
| Milford Wind Corridor Phase I LLC | Boston, MA | Independent Power Producer | - | - | Dec 2011 | Sep 2025 | $2.44M | $34.09k |
| Meadow Creek Project Company LLC | Boston, MA | - | - | - | Sep 2025 | $5.56M | ||
| Matep LLC | Boston, MA | Commercial | 1 | 348.9 GWh | Dec 2024 | Sep 2025 | $8.95M | $5.44M |
| Massachusetts Water Res AUTH | Boston, MA | State-Owned Utility | 3 | 15.2 GWh | Dec 2024 | - | ||
| Marlborough Solar, LLC | Boston, MA | Independent Power Producer | 1 | 3.6 GWh | Dec 2024 | - | ||
| Maine DG Solar Pittsfield, LLC | Boston, MA | Independent Power Producer | 1 | 8.7 GWh | Dec 2024 | - | ||
| Maine DG Solar Monmouth, LLC | Boston, MA | Independent Power Producer | 1 | 9.6 GWh | Dec 2024 | - | ||
| Maine DG Solar Harmony, LLC | Boston, MA | Independent Power Producer | 1 | 9.2 GWh | Dec 2024 | - | ||
| Maine DG Solar Baldwin, LLC | Boston, MA | Independent Power Producer | 1 | 10.1 GWh | Dec 2024 | - | ||
| Maine DG Solar Augusta, LLC | Boston, MA | Independent Power Producer | 1 | 4.8 GWh | Dec 2024 | - | ||
| LR Wheatfield Solar 1, LLC | Boston, MA | Independent Power Producer | 1 | 8.6 GWh | Dec 2024 | - | ||
| Long Plain Solar, LLC | Boston, MA | Independent Power Producer | 1 | 3.7 GWh | Dec 2024 | - | ||
| Livermore Falls CSG, LLC | Boston, MA | Independent Power Producer | 1 | 5.5 GWh | Dec 2024 | - | ||
| Little Falls Solar 1, LLC | Boston, MA | Independent Power Producer | 1 | 3.6 GWh | Dec 2024 | - | ||
| Little Falls Solar | Boston, MA | Independent Power Producer | 1 | 3.6 GWh | Dec 2024 | - | ||
| Little Bear Solar 5, LLC (Longroad) | Boston, MA | Independent Power Producer | 1 | 113.7 GWh | Feb 2026 | - | ||
| Little Bear Solar 5, LLC | Boston, MA | - | - | - | Sep 2025 | $1.73M | ||
| Little Bear Solar 4, LLC (Longroad) | Boston, MA | Independent Power Producer | 1 | 41.1 GWh | Feb 2026 | - | ||
| Little Bear Solar 4, LLC | Boston, MA | - | - | - | Sep 2025 | $286.92k | ||
| Little Bear Solar 3, LLC (Longroad) | Boston, MA | Independent Power Producer | 1 | 28.3 GWh | Dec 2024 | - | ||
| Little Bear Solar 3, LLC | Boston, MA | - | - | - | Sep 2025 | $194.59k | ||
| Little Bear Solar 1, LLC (Longroad) | Boston, MA | Independent Power Producer | 1 | 66.1 GWh | Feb 2026 | - | ||
| Lenox Renewables, LLC | Boston, MA | Independent Power Producer | 1 | 5.5 GWh | Dec 2024 | - | ||
| Lansing Renewables, LLC | Boston, MA | Independent Power Producer | 1 | 8.2 GWh | Dec 2024 | - | ||
| Lakota Ridge, LLC (Longroad) | Boston, MA | Independent Power Producer | 1 | 18.2 GWh | Dec 2024 | - | ||
| Kingfisher Wind LLC | Boston, MA | Independent Power Producer | 1 | 1.1 TWh | Feb 2026 | Oct 2025 | $1.51M | |
| Keycon Operating LLC | Boston, MA | Independent Power Producer | 2 | 9.2 TWh | Feb 2026 | - | ||
| Kearsarge Wilmington LLC | Boston, MA | Independent Power Producer | 1 | 2.3 GWh | Dec 2024 | - | ||
| Kearsarge William Way LLC | Boston, MA | Independent Power Producer | 1 | 7.7 GWh | Dec 2024 | - | ||
| Kearsarge Westerly LLC | Boston, MA | Independent Power Producer | 1 | 6.8 GWh | Dec 2024 | - | ||
| Kearsarge West Shore Solar LLC | Boston, MA | Independent Power Producer | 1 | 9.2 GWh | Dec 2024 | - | ||
| Kearsarge Uxbridge LLC | Boston, MA | Independent Power Producer | 1 | 3.5 GWh | Dec 2024 | - | ||
| Kearsarge Upper Union LLC | Boston, MA | Independent Power Producer | 1 | 1.7 GWh | Dec 2024 | - | ||
| Kearsarge Solar LLC | Boston, MA | Independent Power Producer | 6 | 21.5 GWh | Dec 2024 | - | ||
| Kearsarge Smithfield LLC | Boston, MA | Independent Power Producer | 1 | 14.3 GWh | Dec 2024 | - | ||
| Kearsarge SKSC2 LLC | Boston, MA | Independent Power Producer | 1 | 6.0 GWh | Dec 2024 | - | ||
| Kearsarge SKSC1 LLC | Boston, MA | Independent Power Producer | 1 | 6.1 GWh | Dec 2024 | - | ||
| Kearsarge Riverpark I LLC | Boston, MA | Independent Power Producer | 2 | - | - | Sep 2025 | $136.03k | |
| Kearsarge Oppenheim LLC | Boston, MA | Independent Power Producer | 1 | 2.3 GWh | Dec 2024 | - | ||
| Kearsarge Onset LLC | Boston, MA | Independent Power Producer | 2 | 3.6 GWh | Dec 2024 | - | ||
| Kearsarge Montague LLC | Boston, MA | Independent Power Producer | 2 | 10.9 GWh | Dec 2024 | - | ||
| Kearsarge Ludlow LLC | Boston, MA | Independent Power Producer | 1 | 6.1 GWh | Dec 2024 | - | ||
| Kearsarge Johnstown 2 LLC | Boston, MA | Independent Power Producer | 1 | 3.4 GWh | Dec 2024 | - | ||
| Kearsarge Johnstown 1 LLC | Boston, MA | Independent Power Producer | 1 | 2.4 GWh | Dec 2024 | - | ||
| Kearsarge Haverhill LLC | Boston, MA | Independent Power Producer | 1 | 4.2 GWh | Dec 2024 | - | ||
| Kearsarge Granby LLC | Boston, MA | Independent Power Producer | 1 | 3.7 GWh | Dec 2024 | - | ||
| Kearsarge Gill LLC | Boston, MA | Independent Power Producer | 1 | 3.1 GWh | Dec 2024 | - | ||
| Kearsarge GB LLC | Boston, MA | Independent Power Producer | 1 | 3.4 GWh | Dec 2024 | - | ||
| Kearsarge Fogland LLC | Boston, MA | Independent Power Producer | 1 | 3.6 GWh | Dec 2024 | - | ||
| Kearsarge East Providence LLC | Boston, MA | Independent Power Producer | 1 | 3.2 GWh | Dec 2024 | - | ||
| Kearsarge Concord II LLC | Boston, MA | Independent Power Producer | 1 | 7.1 GWh | Dec 2024 | - | ||
| Kearsarge Beverly LLC | Boston, MA | Independent Power Producer | 1 | 4.9 GWh | Dec 2024 | - | ||
| Kearsarge Bellingham LLC | Boston, MA | Independent Power Producer | 1 | 5.0 GWh | Dec 2024 | - | ||
| Kearsarge Amesbury LLC | Boston, MA | Independent Power Producer | 1 | 5.6 GWh | Dec 2024 | - | ||
| Kearsarge Acushnet LLC | Boston, MA | Independent Power Producer | 1 | 2.9 GWh | Dec 2024 | - | ||
| Iron Springs Solar, LLC | Boston, MA | Independent Power Producer | - | - | - | Sep 2025 | $3.38M | |
| Il West Hallock Project1, LLC | Boston, MA | Independent Power Producer | 1 | 5.0 GWh | Dec 2024 | - | ||
| Il Sidney Project1, LLC | Boston, MA | Independent Power Producer | 1 | 4.7 GWh | Dec 2024 | - | ||
| Idaho Wind Partners 1 LLC | Boston, MA | Independent Power Producer | 11 | 605.5 GWh | Dec 2024 | - | ||
| Howard Wind LLC | Boston, MA | |Independent Power Producer | 1 | 120.9 GWh | Dec 2024 | Oct 2025 | $2.65M | |
| Holyoke Bess LLC | Boston, MA | - | - | - | Oct 2025 | $203.60k | ||
| Hatfield Renewables, LLC | Boston, MA | Independent Power Producer | 1 | 3.0 GWh | Dec 2024 | - | ||
| Harvest Gold Solar Power, LLC | Boston, MA | Independent Power Producer | 1 | 189.0 GWh | Feb 2026 | Sep 2025 | $2.62M | |
| Harbor Road Solar 1, LLC | Boston, MA | Independent Power Producer | 1 | 3.0 GWh | Dec 2024 | - | ||
| Hales Mills Solar, LLC | Boston, MA | Independent Power Producer | 1 | 5.8 GWh | Dec 2024 | - | ||
| Hadley 3 Solar, LLC (South) | Boston, MA | Independent Power Producer | 2 | 6.3 GWh | Dec 2024 | - | ||
| Hadley 2 Solar, LLC | Boston, MA | Independent Power Producer | 1 | 3.1 GWh | Dec 2024 | - | ||
| Griffin Road Solar 2, LLC | Boston, MA | Independent Power Producer | 1 | 2.4 GWh | Dec 2024 | - | ||
| Grays Ferry Cogeneration Partnership | Boston, MA | - | - | - | Oct 2025 | $7.26M | ||
| Granite Mountain Solar West, LLC | Boston, MA | Independent Power Producer | - | - | - | Sep 2025 | $2.12M |
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 | Feb 2026 | Nuclear |
| Barry | Bucks, Alabama | 12 TWh | Jan 1954 | Feb 2026 | Natural Gas : 95.8% Bituminous Coal : 4.2% |
| Beaver Valley | Shippingport, Pennsylvania | 15 TWh | Aug 1976 | Feb 2026 | Nuclear |
| Bowen | Cartersville, Georgia | 12 TWh | Sep 1971 | Feb 2026 | Bituminous Coal : 99.8% |
| Braidwood Generation Station | Braceville, Illinois | 20 TWh | Jun 1988 | Feb 2026 | Nuclear |
| Browns Ferry | Decatur, Alabama | 30 TWh | Jul 1974 | Feb 2026 | Nuclear |
| Brunswick Nuclear | Southport, North Carolina | 16 TWh | Oct 1975 | Feb 2026 | Nuclear |
| Byron Generating Station | Byron, Illinois | 20 TWh | Aug 1985 | Feb 2026 | Nuclear |
| Calvert Cliffs Nuclear Power Plant | Lusby, Maryland | 15 TWh | Apr 1975 | Feb 2026 | Nuclear |
| Catawba | York, South Carolina | 20 TWh | May 1985 | Feb 2026 | Nuclear |
| Comanche Peak | Glen Rose, Texas | 20 TWh | Jul 1990 | Feb 2026 | Nuclear |
| Crystal River | Crystal River, Florida | 16 TWh | Sep 1966 | Feb 2026 | Natural Gas : 71.2% Bituminous Coal : 28.6% |
| Diablo Canyon | Avila Beach, California | 17 TWh | Apr 1985 | Feb 2026 | Nuclear |
| Donald C Cook | Bridgman, Michigan | 17 TWh | Jul 1975 | Feb 2026 | Nuclear |
| Dresden Generating Station | Morris, Illinois | 15 TWh | Jul 1970 | Feb 2026 | Nuclear |
| Edwin I Hatch | Baxley, Georgia | 14 TWh | Nov 1975 | Feb 2026 | Nuclear |
| Gavin Power, LLC | Cheshire, Ohio | 13 TWh | Sep 1974 | Feb 2026 | Bituminous Coal : 99.5% |
| Grand Coulee | Grand Coulee, Washington | 18 TWh | Feb 1941 | Feb 2026 | Water |
| Guernsey Power Station | Byesville, Ohio | 12 TWh | Jan 2023 | Feb 2026 | Natural Gas |
| H Allen Franklin Combined Cycle | Smiths, Alabama | 12 TWh | May 2002 | Feb 2026 | Natural Gas |
| Hines Energy Complex | Bartow, Florida | 12 TWh | Mar 1999 | Feb 2026 | Natural Gas |
| Jack McDonough | Smyrna, Georgia | 18 TWh | Apr 1971 | Feb 2026 | Natural Gas |
| James H Miller Jr | Quinton, Alabama | 19 TWh | Sep 1978 | Feb 2026 | Subbituminous Coal : 99.2% Natural Gas : 0.8% |
| Joseph M Farley | Columbia, Alabama | 13 TWh | Nov 1977 | Feb 2026 | Nuclear |
| Labadie | Labadie, Missouri | 17 TWh | May 1970 | Feb 2026 | Subbituminous Coal |
| LaSalle Generating Station | Marseilles, Illinois | 19 TWh | Dec 1983 | Feb 2026 | Nuclear |
| Limerick | Sanatoga, Pennsylvania | 19 TWh | Jan 1986 | Feb 2026 | Nuclear |
| McGuire | Huntersville, North Carolina | 19 TWh | Aug 1981 | Feb 2026 | Nuclear |
| Millstone | Waterford, Connecticut | 17 TWh | Nov 1975 | Feb 2026 | Nuclear |
| Monroe (MI) | Monroe, Michigan | 16 TWh | Oct 1969 | Feb 2026 | Subbituminous Coal : 74.7% Bituminous Coal : 16.2% Petroleum Coke : 8.9% |
| Nine Mile Point Nuclear Station | Lycoming, New York | 16 TWh | Nov 1969 | Feb 2026 | Nuclear |
| North Anna | Mineral, Virginia | 15 TWh | May 1978 | Feb 2026 | Nuclear |
| Oconee | Seneca, South Carolina | 22 TWh | Jun 1973 | Feb 2026 | Nuclear |
| Okeechobee Clean Energy Center | Okeechobee, Florida | 12 TWh | Feb 2019 | Feb 2026 | Natural Gas |
| Palo Verde | Wintersburg, Arizona | 31 TWh | Dec 1985 | Feb 2026 | Nuclear |
| Peach Bottom | Delta, Pennsylvania | 22 TWh | Jun 1974 | Feb 2026 | Nuclear |
| Prairie State Generating Station | Marissa, Illinois | 12 TWh | May 2012 | Feb 2026 | Bituminous Coal : 99.8% |
| PSEG Salem Generating Station | Hancocks Bridge, New Jersey | 19 TWh | May 1971 | Feb 2026 | Nuclear |
| Quad Cities Generating Station | Cordova, Illinois | 15 TWh | Nov 1972 | Feb 2026 | Nuclear |
| Robert Moses Niagara | Lewiston, New York | 14 TWh | Dec 1960 | Feb 2026 | Water |
| Sequoyah | Soddy Daisy, Tennessee | 15 TWh | Jun 1981 | Feb 2026 | Nuclear |
| South Texas Project | Wadsworth, Texas | 22 TWh | Jul 1988 | Feb 2026 | Nuclear |
| St Lucie | Jensen Beach, Florida | 16 TWh | Apr 1976 | Feb 2026 | Nuclear |
| Surry | Surry, Virginia | 13 TWh | Nov 1972 | Feb 2026 | Nuclear |
| TalenEnergy Susquehanna | Berwick, Pennsylvania | 19 TWh | May 1983 | Feb 2026 | Nuclear |
| Turkey Point | Homestead, Florida | 20 TWh | Mar 1967 | Feb 2026 | Nuclear : 67.9% Natural Gas : 32.1% |
| Vogtle | Waynesboro, Georgia | 37 TWh | Apr 1987 | Feb 2026 | Nuclear |
| W A Parish | Thompsons, Texas | 15 TWh | May 1958 | Feb 2026 | Subbituminous Coal : 83.0% Natural Gas : 17.0% |
| Watts Bar Nuclear Plant | Spring City, Tennessee | 18 TWh | Apr 1996 | Feb 2026 | Nuclear |
| West County Energy Center | Loxahatchee, Florida | 19 TWh | Jul 2009 | Feb 2026 | Natural Gas : 99.9% |