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 |
|---|---|---|---|---|---|---|---|---|
| Kearsarge West Shore Solar LLC | Boston, MA | Independent Power Producer | 1 | 9.2 GWh | Dec 2024 | - | ||
| Kearsarge Westerly LLC | Boston, MA | Independent Power Producer | 1 | 6.8 GWh | Dec 2024 | - | ||
| Kearsarge William Way LLC | Boston, MA | Independent Power Producer | 1 | 7.7 GWh | Dec 2024 | - | ||
| Kearsarge Wilmington LLC | Boston, MA | Independent Power Producer | 1 | 2.3 GWh | Dec 2024 | - | ||
| Keycon Operating LLC | Boston, MA | Independent Power Producer | 2 | 8.6 TWh | Oct 2025 | - | ||
| Kingfisher Wind LLC | Boston, MA | Independent Power Producer | 1 | 927.0 GWh | Oct 2025 | Oct 2025 | $1.51M | |
| Lakota Ridge, LLC (Longroad) | Boston, MA | Independent Power Producer | 1 | 18.2 GWh | Dec 2024 | - | ||
| Lansing Renewables, LLC | Boston, MA | Independent Power Producer | 1 | 8.2 GWh | Dec 2024 | - | ||
| Lenox Renewables, LLC | Boston, MA | Independent Power Producer | 1 | 5.5 GWh | Dec 2024 | - | ||
| Little Bear Solar 1, LLC (Longroad) | Boston, MA | Independent Power Producer | 1 | 74.3 GWh | Oct 2025 | - | ||
| Little Bear Solar 3, LLC | Boston, MA | - | - | - | Sep 2025 | $194.59k | ||
| Little Bear Solar 3, LLC (Longroad) | Boston, MA | Independent Power Producer | 1 | 28.3 GWh | Dec 2024 | - | ||
| Little Bear Solar 4, LLC | Boston, MA | - | - | - | Sep 2025 | $286.92k | ||
| Little Bear Solar 4, LLC (Longroad) | Boston, MA | Independent Power Producer | 1 | 46.8 GWh | Oct 2025 | - | ||
| Little Bear Solar 5, LLC | Boston, MA | - | - | - | Sep 2025 | $1.73M | ||
| Little Bear Solar 5, LLC (Longroad) | Boston, MA | Independent Power Producer | 1 | 125.0 GWh | Oct 2025 | - | ||
| Little Falls Solar | Boston, MA | Independent Power Producer | 1 | 3.6 GWh | Dec 2024 | - | ||
| Little Falls Solar 1, LLC | Boston, MA | Independent Power Producer | 1 | 3.6 GWh | Dec 2024 | - | ||
| Livermore Falls CSG, LLC | Boston, MA | Independent Power Producer | 1 | 5.5 GWh | Dec 2024 | - | ||
| Long Plain Solar, LLC | Boston, MA | Independent Power Producer | 1 | 3.7 GWh | Dec 2024 | - | ||
| LR Wheatfield Solar 1, LLC | Boston, MA | Independent Power Producer | 1 | 8.6 GWh | Dec 2024 | - | ||
| Maine DG Solar Augusta, LLC | Boston, MA | Independent Power Producer | 1 | 4.8 GWh | Dec 2024 | - | ||
| Maine DG Solar Baldwin, LLC | Boston, MA | Independent Power Producer | 1 | 10.1 GWh | Dec 2024 | - | ||
| Maine DG Solar Harmony, LLC | Boston, MA | Independent Power Producer | 1 | 9.2 GWh | Dec 2024 | - | ||
| Maine DG Solar Monmouth, LLC | Boston, MA | Independent Power Producer | 1 | 9.6 GWh | Dec 2024 | - | ||
| Maine DG Solar Pittsfield, LLC | Boston, MA | Independent Power Producer | 1 | 8.7 GWh | Dec 2024 | - | ||
| Marlborough Solar, LLC | Boston, MA | Independent Power Producer | 1 | 3.6 GWh | Dec 2024 | - | ||
| Massachusetts Water Res AUTH | Boston, MA | State-Owned Utility | 3 | 15.2 GWh | Dec 2024 | - | ||
| Matep LLC | Boston, MA | Commercial | 1 | 348.9 GWh | Dec 2024 | Sep 2025 | $8.95M | $5.44M |
| Meadow Creek Project Company LLC | Boston, MA | - | - | - | Sep 2025 | $5.56M | ||
| Milford Wind Corridor Phase I LLC | Boston, MA | Independent Power Producer | - | - | Dec 2011 | Sep 2025 | $2.44M | $34.09k |
| Milford Wind Corridor Phase I, LLC (Longroad) | Boston, MA | Independent Power Producer | 1 | 432.1 GWh | Oct 2025 | - | ||
| Milford Wind Corridor Phase II, LLC | Boston, MA | - | - | - | Sep 2025 | $2.05M | $18.54k | |
| Milford Wind Corridor Stage II LLC | Boston, MA | Independent Power Producer | 1 | 208.5 GWh | Oct 2025 | - | ||
| MILO CSG, LLC | Boston, MA | Independent Power Producer | 1 | 7.1 GWh | Dec 2024 | - | ||
| Monson Solar, LLC | Boston, MA | Independent Power Producer | 1 | 3.5 GWh | Dec 2024 | - | ||
| Montague Road Solar, LLC | Boston, MA | Independent Power Producer | 1 | 4.9 GWh | Dec 2024 | - | ||
| Murphy Flat Power, LLC | Boston, MA | Independent Power Producer | 1 | 43.1 GWh | Oct 2025 | - | ||
| Mustang Hills, LLC (Longroad) | Boston, MA | Independent Power Producer | 1 | 312.4 GWh | Dec 2024 | Jun 2025 | $11.94M | |
| MWRA Charlestown | Boston, MA | State-Owned Utility | 1 | 1.3 GWh | Dec 2024 | - | ||
| New Hampshire Hydro Associates | Boston, MA | Independent Power Producer | 1 | 3.1 GWh | Dec 2024 | - | ||
| Newfield Solar LLC | Boston, MA | Independent Power Producer | 1 | 8.5 GWh | Dec 2024 | - | ||
| Nexamp Peak, LLC | Boston, MA | Independent Power Producer | 1 | 2.3 GWh | Dec 2024 | - | ||
| Niagara Depot Solar, LLC | Boston, MA | Independent Power Producer | 1 | 5.2 GWh | Dec 2024 | - | ||
| Niagara Wind Power LLC | Boston, MA | Independent Power Producer | - | - | Dec 2011 | Oct 2025 | $580.10k | |
| Oe Il Solar 3, LLC | Boston, MA | Independent Power Producer | 1 | 4.7 GWh | Dec 2024 | - | ||
| Off Airport Road - West, LLC | Boston, MA | Independent Power Producer | 1 | 6.9 GWh | Dec 2024 | - | ||
| Old Frontier Solar III PV, LLC | Boston, MA | Independent Power Producer | 1 | 4.1 GWh | Dec 2024 | - | ||
| Olney Solar II, LLC | Boston, MA | Independent Power Producer | 1 | 4.6 GWh | Dec 2024 | - | ||
| Orange Grove | Boston, MA | Independent Power Producer | 1 | 138.1 GWh | Oct 2025 | - | ||
| Orchard Ranch Solar, LLC | Boston, MA | Independent Power Producer | 1 | 48.2 GWh | Oct 2025 | - | ||
| Oriana Solar LLC | Boston, MA | Independent Power Producer | 1 | 73.1 GWh | Oct 2025 | - | ||
| Orsted Wind Power North America LLC | Boston, MA | Independent Power Producer | 3 | 569.1 GWh | Oct 2025 | - | ||
| Owlville Creek Solar 2, LLC | Boston, MA | Independent Power Producer | 1 | 8.0 GWh | Dec 2024 | - | ||
| Owlville Creek Solar, LLC | Boston, MA | Independent Power Producer | 1 | 8.5 GWh | Dec 2024 | - | ||
| Pendleton Solar 1, LLC | Boston, MA | Independent Power Producer | 1 | 7.7 GWh | Dec 2024 | - | ||
| Peterson Road Solar, LLC | Boston, MA | Independent Power Producer | 1 | 4.6 GWh | Dec 2024 | - | ||
| Plainfield Solar LLC | Boston, MA | Independent Power Producer | 1 | 3.6 GWh | Dec 2024 | - | ||
| Pleasantdale Road Solar, LLC | Boston, MA | Independent Power Producer | 1 | 1.4 GWh | Dec 2024 | - | ||
| PNY Bess LLC | Boston, MA | - | - | - | Oct 2025 | $400.66k | ||
| Prospero Energy Project, LLC (Longroad) | Boston, MA | Independent Power Producer | 1 | 820.7 GWh | Oct 2025 | - | ||
| Prospero Solar II, LLC (Longroad) | Boston, MA | Independent Power Producer | 1 | 723.0 GWh | Oct 2025 | - | ||
| PVN Milliken, LLC | Boston, MA | Independent Power Producer | 1 | 5.1 GWh | Dec 2024 | - | ||
| Rafterville Solar, LLC | Boston, MA | Independent Power Producer | 1 | 2.1 GWh | Dec 2024 | - | ||
| RIO Bravo Windpower, LLC | Boston, MA | Independent Power Producer | 1 | 673.9 GWh | Oct 2025 | - | ||
| Rockford CS 1, LLC | Boston, MA | Independent Power Producer | 1 | 4.2 GWh | Dec 2024 | - | ||
| Rockford CS 2, LLC | Boston, MA | Independent Power Producer | 1 | 4.2 GWh | Dec 2024 | - | ||
| Rockford Solar, LLC | Boston, MA | Independent Power Producer | 1 | 3.7 GWh | Dec 2024 | - | ||
| Rockland Wind Farm LLC | Boston, MA | - | - | - | Sep 2025 | $2.99M | ||
| Route 14A CDG Solar North And South, LLC | Boston, MA | Independent Power Producer | 1 | 6.7 GWh | Dec 2024 | - | ||
| Route 76 Boone Solar 1, LLC | Boston, MA | Independent Power Producer | 1 | 4.1 GWh | Dec 2024 | - | ||
| RT32 Westerlo Solar 1, LLC | Boston, MA | Independent Power Producer | 1 | 8.6 GWh | Dec 2024 | - | ||
| RT405 Westerlo Solar 2, LLC | Boston, MA | Independent Power Producer | 1 | 8.5 GWh | Dec 2024 | - | ||
| Samoset Solar, LLC | Boston, MA | Independent Power Producer | 1 | 3.9 GWh | Dec 2024 | - | ||
| Sampson Road Solar, LLC | Boston, MA | Independent Power Producer | 1 | 3.2 GWh | Dec 2024 | - | ||
| Sappi Fine Paper North America-Somerset | Boston, MA | Industrial | 1 | 617.2 GWh | Oct 2025 | - | ||
| Sequitur Renewables, LLC | Boston, MA | Independent Power Producer | 6 | 249.6 GWh | Oct 2025 | - | ||
| Serrano Solar, LLC | Boston, MA | Independent Power Producer | 1 | 281.2 GWh | Oct 2025 | Sep 2025 | $10.95M | |
| Settlers Solar, LLC | Boston, MA | Independent Power Producer | 1 | 8.2 GWh | Dec 2024 | - | ||
| Shaokatan Hills, LLC (Longroad) | Boston, MA | Independent Power Producer | 1 | 13.3 GWh | Dec 2024 | - | ||
| Solar Star Urbana Landfill Central, LLC | Boston, MA | Independent Power Producer | 1 | 3.8 GWh | Dec 2024 | - | ||
| Solar Star Urbana Landfill East, LLC | Boston, MA | Independent Power Producer | 1 | 3.7 GWh | Dec 2024 | - | ||
| Somonauk Road Solar 1, LLC | Boston, MA | Independent Power Producer | 1 | 4.4 GWh | Dec 2024 | - | ||
| South Field Energy, LLC | Boston, MA | Independent Power Producer | 1 | 8.1 TWh | Oct 2025 | Oct 2025 | $73.20M | |
| Stetson Holdings, LLC | Boston, MA | Independent Power Producer | - | - | Dec 2011 | Sep 2025 | $1.97M | |
| Stikeleather Farm, LLC | Boston, MA | Independent Power Producer | 1 | 9.7 GWh | Dec 2024 | - | ||
| Sugar Hill Solar 1, LLC | Boston, MA | Independent Power Producer | 1 | 8.6 GWh | Dec 2024 | - | ||
| Sun Streams 2, LLC | Boston, MA | Independent Power Producer | 1 | 353.8 GWh | Oct 2025 | Sep 2025 | $1.57M | |
| Sun Streams Expansion, LLC | Boston, MA | Independent Power Producer | 1 | 570.7 GWh | Oct 2025 | Sep 2025 | $18.72M | |
| Sun Streams PVS, LLC | Boston, MA | Independent Power Producer | 1 | 505.6 GWh | Oct 2025 | Sep 2025 | $10.77M | |
| SUNE DB42, LLC | Boston, MA | Independent Power Producer | 1 | 3.6 GWh | Dec 2024 | - | ||
| SUNE EPE1 LLC | Boston, MA | Independent Power Producer | 1 | 28.9 GWh | Dec 2024 | - | ||
| SUNE SPS1, LLC | Boston, MA | Independent Power Producer | 1 | 24.3 GWh | Dec 2024 | - | ||
| SUNE SPS2, LLC | Boston, MA | Independent Power Producer | 1 | 22.3 GWh | Dec 2024 | - | ||
| SUNE SPS3, LLC | Boston, MA | Independent Power Producer | 1 | 24.4 GWh | Dec 2024 | - | ||
| SUNE SPS4, LLC | Boston, MA | Independent Power Producer | 1 | 24.1 GWh | Dec 2024 | - | ||
| SUNE SPS5, LLC | Boston, MA | Independent Power Producer | 1 | 23.2 GWh | Dec 2024 | - | ||
| Sunflower Wind Project | Boston, MA | Investor-Owned Utility | - | - | Dec 2018 | Sep 2025 | $2.58M | |
| Sutton Solar 2, LLC | Boston, MA | Independent Power Producer | 1 | 1.4 GWh | Dec 2024 | - | ||
| Sutton Solar, LLC | Boston, MA | Independent Power Producer | 1 | 3.2 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 | Oct 2025 | Nuclear |
| Barry | Bucks, Alabama | 12 TWh | Jan 1954 | Oct 2025 | Natural Gas : 95.1% Bituminous Coal : 4.9% |
| Beaver Valley | Shippingport, Pennsylvania | 15 TWh | Aug 1976 | Oct 2025 | Nuclear |
| Bowen | Cartersville, Georgia | 11 TWh | Sep 1971 | Oct 2025 | Bituminous Coal : 99.8% |
| Braidwood Generation Station | Braceville, Illinois | 20 TWh | Jun 1988 | Oct 2025 | Nuclear |
| Browns Ferry | Decatur, Alabama | 30 TWh | Jul 1974 | Oct 2025 | Nuclear |
| Brunswick Nuclear | Southport, North Carolina | 16 TWh | Oct 1975 | Oct 2025 | Nuclear |
| Byron Generating Station | Byron, Illinois | 20 TWh | Aug 1985 | Oct 2025 | Nuclear |
| Calvert Cliffs Nuclear Power Plant | Lusby, Maryland | 15 TWh | Apr 1975 | Oct 2025 | Nuclear |
| Catawba | York, South Carolina | 19 TWh | May 1985 | Oct 2025 | Nuclear |
| Comanche Peak | Glen Rose, Texas | 19 TWh | Jul 1990 | Oct 2025 | Nuclear |
| Crystal River | Crystal River, Florida | 15 TWh | Sep 1966 | Oct 2025 | Natural Gas : 75.4% Bituminous Coal : 24.4% |
| Diablo Canyon | Avila Beach, California | 18 TWh | Apr 1985 | Oct 2025 | Nuclear |
| Donald C Cook | Bridgman, Michigan | 18 TWh | Jul 1975 | Oct 2025 | Nuclear |
| Dresden Generating Station | Morris, Illinois | 15 TWh | Jul 1970 | Oct 2025 | Nuclear |
| Edwin I Hatch | Baxley, Georgia | 14 TWh | Nov 1975 | Oct 2025 | Nuclear |
| Gavin Power, LLC | Cheshire, Ohio | 13 TWh | Sep 1974 | Oct 2025 | Bituminous Coal : 99.5% Distillate Fuel Oil : 0.5% |
| Grand Coulee | Grand Coulee, Washington | 16 TWh | Feb 1941 | Oct 2025 | Water |
| Grand Gulf | Port Gibson, Mississippi | 11 TWh | Jun 1985 | Oct 2025 | Nuclear |
| Guernsey Power Station | Byesville, Ohio | 11 TWh | Jan 2023 | Oct 2025 | Natural Gas |
| H Allen Franklin Combined Cycle | Smiths, Alabama | 12 TWh | May 2002 | Oct 2025 | Natural Gas |
| Hines Energy Complex | Bartow, Florida | 12 TWh | Mar 1999 | Oct 2025 | Natural Gas |
| Jack McDonough | Smyrna, Georgia | 17 TWh | Apr 1971 | Oct 2025 | Natural Gas |
| James H Miller Jr | Quinton, Alabama | 19 TWh | Sep 1978 | Oct 2025 | Subbituminous Coal : 99.2% Natural Gas : 0.8% |
| Joseph M Farley | Columbia, Alabama | 13 TWh | Nov 1977 | Oct 2025 | Nuclear |
| Labadie | Labadie, Missouri | 16 TWh | May 1970 | Oct 2025 | Subbituminous Coal : 99.9% |
| LaSalle Generating Station | Marseilles, Illinois | 19 TWh | Dec 1983 | Oct 2025 | Nuclear |
| Limerick | Sanatoga, Pennsylvania | 19 TWh | Jan 1986 | Oct 2025 | Nuclear |
| McGuire | Huntersville, North Carolina | 20 TWh | Aug 1981 | Oct 2025 | Nuclear |
| Millstone | Waterford, Connecticut | 17 TWh | Nov 1975 | Oct 2025 | Nuclear |
| Monroe (MI) | Monroe, Michigan | 16 TWh | Oct 1969 | Oct 2025 | Subbituminous Coal : 74.1% Bituminous Coal : 16.5% Petroleum Coke : 9.1% |
| Nine Mile Point Nuclear Station | Lycoming, New York | 16 TWh | Nov 1969 | Oct 2025 | Nuclear |
| North Anna | Mineral, Virginia | 15 TWh | May 1978 | Oct 2025 | Nuclear |
| Oconee | Seneca, South Carolina | 23 TWh | Jun 1973 | Oct 2025 | Nuclear |
| Okeechobee Clean Energy Center | Okeechobee, Florida | 12 TWh | Feb 2019 | Oct 2025 | Natural Gas |
| Palo Verde | Wintersburg, Arizona | 32 TWh | Dec 1985 | Oct 2025 | Nuclear |
| Peach Bottom | Delta, Pennsylvania | 22 TWh | Jun 1974 | Oct 2025 | Nuclear |
| PSEG Salem Generating Station | Hancocks Bridge, New Jersey | 18 TWh | May 1971 | Oct 2025 | Nuclear |
| Quad Cities Generating Station | Cordova, Illinois | 15 TWh | Nov 1972 | Oct 2025 | Nuclear |
| Robert Moses Niagara | Lewiston, New York | 14 TWh | Dec 1960 | Oct 2025 | Water |
| Sequoyah | Soddy Daisy, Tennessee | 13 TWh | Jun 1981 | Oct 2025 | Nuclear |
| South Texas Project | Wadsworth, Texas | 22 TWh | Jul 1988 | Oct 2025 | Nuclear |
| St Lucie | Jensen Beach, Florida | 16 TWh | Apr 1976 | Oct 2025 | Nuclear |
| Surry | Surry, Virginia | 14 TWh | Nov 1972 | Oct 2025 | Nuclear |
| TalenEnergy Susquehanna | Berwick, Pennsylvania | 19 TWh | May 1983 | Oct 2025 | Nuclear |
| Turkey Point | Homestead, Florida | 20 TWh | Mar 1967 | Oct 2025 | Nuclear : 68.2% Natural Gas : 31.8% |
| Vogtle | Waynesboro, Georgia | 36 TWh | Apr 1987 | Oct 2025 | Nuclear |
| W A Parish | Thompsons, Texas | 15 TWh | May 1958 | Oct 2025 | Subbituminous Coal : 83.8% Natural Gas : 16.2% |
| Watts Bar Nuclear Plant | Spring City, Tennessee | 15 TWh | Apr 1996 | Oct 2025 | Nuclear |
| West County Energy Center | Loxahatchee, Florida | 18 TWh | Jul 2009 | Oct 2025 | Natural Gas : 99.9% |