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 |
|---|---|---|---|---|---|---|---|---|
| Nstar Electric Company | Westwood, MA | Investor-Owned Utility | 17 | 62.3 GWh | Oct 2025 | Oct 2025 | $27.02M | $57.43M |
| Williamston Speight Solar, LLC | Westport, CT | Independent Power Producer | 1 | 19.1 GWh | Dec 2024 | - | ||
| Sunenergy1-Scotland Neck, LLC | Westport, CT | Independent Power Producer | 1 | 5.9 GWh | Dec 2024 | - | ||
| Sugar Run Solar, LLC | Westport, CT | Independent Power Producer | 1 | 9.6 GWh | Dec 2024 | - | ||
| Signal Street Operating, LLC | Westport, CT | Independent Power Producer | 1 | 3.0 GWh | Dec 2024 | - | ||
| Ranchland Solar, LLC | Westport, CT | Independent Power Producer | 1 | 110.1 GWh | Oct 2025 | Oct 2025 | $1.73M | |
| Choco Solar LLC | Westport, CT | Independent Power Producer | 1 | 9.4 GWh | Dec 2024 | - | ||
| Maryland Environmental Service | Westover, MD | State-Owned Utility | 1 | 10.8 GWh | Oct 2025 | - | ||
| TRI-State Generation And Transmission Association, Inc. | Westminster, CO | - | - | - | Oct 2025 | $309.00M | $68.23M | |
| TRI-State G & T Assn, Inc | Westminster, CO | Cooperative | 12 | 6.9 TWh | Oct 2025 | - | ||
| Calwind Resources Inc | Westlake VIllage, CA | Independent Power Producer | 2 | 64.2 GWh | Dec 2024 | - | ||
| Silverstreet Hydro | Westfield, MA | Independent Power Producer | 2 | 4.8 GWh | Dec 2024 | - | ||
| Covanta Hempstead Company | Westbury, NY | Independent Power Producer | 1 | 644.3 GWh | Oct 2025 | Apr 2024 | ||
| Sappi North America, Inc. | Westbrook, ME | - | - | - | Sep 2025 | $265.71k | ||
| Great River Hydro, LLC | Westborough, MA | Independent Power Producer | 13 | 1.8 TWh | Dec 2024 | Sep 2025 | $44.29M | |
| Semass Partnership | West Wareham, MA | Commercial | 1 | 622.0 GWh | Oct 2025 | Mar 2025 | ||
| Western Massachusetts Electric Company | West Springfield, MA | Investor-Owned Utility | 3 | 6.3 GWh | Oct 2025 | Sep 2025 | $2.82M | |
| Westrock-West Point Mill | West Point, VA | Industrial | 1 | 587.5 GWh | Oct 2025 | - | ||
| City Of West Plains - (Mo) | West Plains, MO | Municipally-Owned Utility | 1 | 4.3 GWh | Dec 2024 | Jan 2014 | ||
| Solid Waste Authority Of Palm Beach Co | West Palm Beach, FL | Political Subdivision | 2 | 909.4 GWh | Oct 2025 | - | ||
| Boca BN, LLC | West Palm Beach, FL | Independent Power Producer | 1 | 410.7 GWh | Oct 2025 | Oct 2025 | $2.85M | |
| American Sugar Refining Inc. | West Palm Beach, FL | |Independent Power Producer | 3 | 59.7 GWh | Oct 2025 | - | ||
| Diamond Properties | West Nyack, NY | Commercial | 2 | 1.9 GWh | Dec 2024 | - | ||
| Purdue University | West Lafayette, IN | State-Owned Utility | 1 | 94.1 GWh | Oct 2025 | - | ||
| Realgy, LLC | West Hartford, CT | - | - | - | Oct 2025 | $176.48k | $113.43k | |
| Southeastern Chester County Refuse AUTH | West Grove, PA | Municipally-Owned Utility | 1 | 428.1 MWh | Dec 2024 | - | ||
| Marlboro Mushroom | West Grove, PA | Commercial | 1 | 1.3 GWh | Dec 2024 | - | ||
| Stored Solar J&We | West Enfield, ME | Independent Power Producer | 2 | 53.7 GWh | Jun 2025 | Mar 2023 | ||
| Rippey Wind Energy LLC | West DES Moines, IA | Independent Power Producer | - | - | Dec 2015 | Sep 2025 | $1.80M | |
| Elk Wind Energy LLC | West DES Moines, IA | Independent Power Producer | - | - | Dec 2015 | Sep 2025 | $2.35M | |
| Bethel Wind Energy LLC | West DES Moines, IA | Independent Power Producer | - | - | Dec 2015 | Sep 2025 | $1.69M | |
| Caldwell Wastewater Treatment Plant | West Caldwell, NJ | Investor-Owned Utility | 1 | 1.0 GWh | Dec 2024 | - | ||
| Town Of West Boylston - (Ma) | West Boylston, MA | Municipally-Owned Utility | 1 | 2.3 GWh | Dec 2024 | - | ||
| City Of West Bend | West Bend, IA | Municipally-Owned Utility | 1 | 222.6 MWh | Dec 2024 | - | ||
| HL Power Company | Wendel, CA | Independent Power Producer | 1 | 224.4 GWh | Dec 2024 | Oct 2025 | $4.77M | |
| Wendell Ma 1 LLC | Wendell, MA | Independent Power Producer | 1 | 1.4 GWh | Dec 2024 | - | ||
| Blind Canyon Aquaranch, Inc. | Wendell, ID | Independent Power Producer | 1 | 452.0 MWh | Oct 2024 | - | ||
| Pud No 1 Of Chelan County | Wenatchee, WA | Political Subdivision | 4 | 7.9 TWh | Oct 2025 | Oct 2025 | $136.95M | $29.82M |
| City Of Wellington - (KS) | Wellington, KS | Municipally-Owned Utility | 2 | 9.2 GWh | Dec 2024 | - | ||
| Wellesley College | Wellesley, MA | Independent Power Producer | 1 | 933.3 MWh | Dec 2024 | - | ||
| Roseburg Forest Products Co | Weed, CA | Industrial | 2 | 194.7 GWh | Dec 2024 | Oct 2025 | $1.14M | |
| Webster Holdco LLC | Webster, MN | Independent Power Producer | 1 | 8.0 GWh | Dec 2024 | - | ||
| City Of Webster City - (Ia) | Webster City, IA | Municipally-Owned Utility | 1 | 1.0 GWh | Dec 2024 | - | ||
| Dynamic Energy Solutions, LLC | Wayne, PA | Commercial | 1 | 1.7 GWh | Dec 2024 | - | ||
| Doccs Eastern | Wawarsing, NY | Independent Power Producer | 1 | 9.1 GWh | Dec 2024 | - | ||
| Waverly Municipal ELEC Utility | Waverly, IA | Municipally-Owned Utility | 5 | 7.4 GWh | Dec 2024 | - | ||
| Buffalo Center Wind LLC | Waukon, IA | Independent Power Producer | 1 | 5.2 GWh | Dec 2024 | - | ||
| Vandolah Power Co LLC | Wauchula, FL | Independent Power Producer | 1 | 734.0 GWh | Oct 2025 | Sep 2025 | $13.60M | |
| Watervliet City Of | Watervliet, NY | Municipally-Owned Utility | 1 | 2.6 GWh | Dec 2024 | - | ||
| City Of Watertown - (Ny) | Watertown, NY | Municipally-Owned Utility | 1 | 282.0 MWh | Oct 2024 | - | ||
| Black River Hydroelectric, LLC | Watertown, NY | Independent Power Producer | - | - | Dec 2020 | Sep 2025 | $1.53M | |
| City Of Waterloo - (Il) | Waterloo, IL | Municipally-Owned Utility | 2 | 526.4 MWh | Dec 2024 | - | ||
| Waterford Power, LLC | Waterford, OH | Independent Power Producer | 1 | 5.5 TWh | Oct 2025 | Oct 2025 | $23.36M | |
| Dominion Energy Nuclear Conn Inc | Waterford, CT | Investor-Owned Utility | 29 | 19.2 TWh | Oct 2025 | Sep 2025 | $168.96M | |
| Vermont Public Power Supply Authority | Waterbury Center, VT | Political Subdivision | 1 | 1.2 GWh | Dec 2024 | Sep 2025 | $3.25M | |
| City Of Washington - (Ut) | Washington, UT | Municipally-Owned Utility | 1 | 6.0 GWh | Dec 2024 | - | ||
| Yankee Street, LLC | Washington, DC | - | - | - | Oct 2025 | $2.90M | ||
| X-ELIO North America Inc | Washington, DC | Independent Power Producer | 1 | 174.9 GWh | Oct 2025 | - | ||
| Wheelabrator South Broward Inc. | Washington, DC | - | - | - | Sep 2025 | $4.04M | ||
| US GSA Heating And Transmission | Washington, DC | Federally-Owned Utility | 1 | 42.2 GWh | Oct 2025 | - | ||
| The Narragansett Electric Company | Washington, DC | - | - | - | Oct 2025 | $18.73M | $70.21M | |
| The George Washington University | Washington, DC | Independent Power Producer | 1 | 691.5 MWh | Dec 2024 | - | ||
| TAIT Electric Generating Station, LLC | Washington, DC | - | - | - | Oct 2025 | $25.28M | ||
| Sol Systems | Washington, DC | Independent Power Producer | 29 | 509.6 GWh | Oct 2025 | - | ||
| Sidney, LLC | Washington, DC | - | - | - | Oct 2025 | $190.51k | ||
| Ruff Solar LLC | Washington, DC | - | - | - | Sep 2025 | $450.29k | ||
| Rhythm Ops, LLC | Washington, DC | - | - | - | Sep 2025 | $1.03M | $10.55M | |
| PPL Electric Utilities Corporation | Washington, DC | - | - | - | Oct 2025 | $342.75k | $138.81M | |
| OXON Run Community Renewable Energy Facility | Washington, DC | State-Owned Utility | 1 | 1.6 GWh | Dec 2024 | - | ||
| Orbit Bloom Energy, LLC | Washington, DC | - | - | - | Sep 2025 | $1.76M | ||
| O.H. Hutchings CT, LLC | Washington, DC | - | - | - | Oct 2025 | $328.81k | ||
| New Columbia Solar | Washington, DC | Independent Power Producer | 3 | 2.8 GWh | Dec 2024 | - | ||
| Monument Generating Station, LLC | Washington, DC | - | - | - | Oct 2025 | $96.48k | ||
| Montpelier Generating Station, LLC | Washington, DC | - | - | - | Oct 2025 | $5.69M | ||
| MFT Energy US Power LLC | Washington, DC | - | - | - | Sep 2025 | $8.15M | ||
| Lily Solar Lessee, LLC | Washington, DC | - | - | - | Sep 2025 | $1.78M | ||
| Lightstone Marketing LLC | Washington, DC | - | - | - | Jun 2025 | $1.43M | $1.43M | |
| Liberty 1 Solar LLC | Washington, DC | Independent Power Producer | 1 | 17.4 GWh | Aug 2025 | - | ||
| Lanyard Power Marketing, LLC | Washington, DC | - | - | - | Oct 2025 | $79.44M | $79.44M | |
| Indian Creek Solar Farm LLC | Washington, DC | - | - | - | Sep 2025 | $624.70k | ||
| GSA Metropolitan Service Center | Washington, DC | Federally-Owned Utility | 1 | 101.9 GWh | Oct 2025 | - | ||
| Goleta Energy Storage, LLC | Washington, DC | Independent Power Producer | 1 | -8.2 GWh | Oct 2025 | Oct 2025 | $1.58M | |
| Eldorado Solar Project, LLC | Washington, DC | - | - | - | Sep 2025 | $3.67M | ||
| Duquesne Light Company | Washington, DC | - | - | - | Oct 2025 | $335.16k | $75.79M | |
| DG VDH Bess, LLC | Washington, DC | - | - | - | Sep 2025 | $39.89k | ||
| DC Water | Washington, DC | Municipally-Owned Utility | 1 | 54.8 GWh | Oct 2025 | - | ||
| Cleanchoice Power Solutions, LLC | Washington, DC | - | - | - | Sep 2025 | $75.29k | ||
| Astra Wind LLC | Washington, DC | Independent Power Producer | 1 | 590.2 GWh | Oct 2025 | - | ||
| Architect Of The Capitol, Capitol Power Plant | Washington, DC | Commercial | 1 | 58.2 GWh | Dec 2024 | - | ||
| Agway Energy Services, LLC | Washington, DC | - | - | - | Oct 2025 | $69.30k | ||
| 83WI 8ME, LLC | Washington, DC | Independent Power Producer | 1 | 116.2 GWh | Oct 2025 | Oct 2025 | $2.24M | |
| Robin Hollow Solar, LLC | Warwick, RI | Independent Power Producer | 1 | 75.1 GWh | Oct 2025 | - | ||
| Revity Energy LLC | Warwick, RI | Independent Power Producer | 1 | 24.7 GWh | Dec 2024 | - | ||
| Cams (Georgia) Al Sandersville | Warthen, GA | Independent Power Producer | 1 | 154.3 GWh | Dec 2024 | - | ||
| Al Sandersville | Warthen, GA | Independent Power Producer | - | - | Nov 2023 | Sep 2025 | $11.60M | |
| Seneca Generation LLC | Warren, PA | Independent Power Producer | 1 | -389.2 GWh | Oct 2025 | Oct 2025 | $20.14M | |
| Clean Energy Future-Lordstown, LLC | Warren, OH | Independent Power Producer | 1 | 7.0 TWh | Oct 2025 | Oct 2025 | $56.05M | |
| Haleon PLC | Warren, NJ | Independent Power Producer | 1 | 837.0 MWh | Dec 2024 | - | ||
| Constellation Nuclear | Warrenville, IL | Independent Power Producer | 14 | 197.4 TWh | Oct 2025 | - | ||
| Syracuse, L.L.C. | Warner Robins, GA | - | - | - | Oct 2025 | $1.66M | $53.30k |
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% |