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 |
|---|---|---|---|---|---|---|---|---|
| Allegheny Energy Supply Co LLC | Greensburg, PA | Investor-Owned Utility | 6 | - | Jan 2026 | Oct 2025 | $3.49M | $5.89M |
| Allegheny Ridge Wind Farm, LLC | Dallas, TX | - | - | - | Oct 2025 | $1.81M | ||
| Allendale Biomass LLC | Fairfax, SC | Independent Power Producer | 1 | 159.3 GWh | Dec 2025 | - | ||
| Allete Clean Energy | Duluth, MN | Independent Power Producer | 14 | 3.5 TWh | May 2026 | - | ||
| Allete, Inc. | Duluth, MN | Investor-Owned Utility | 24 | 8.6 TWh | May 2026 | Oct 2025 | $137.16M | $4.23M |
| Alliance HP VIrginia Drive LLC | BRYN MAWR, PA | Independent Power Producer | 1 | 827.0 MWh | Dec 2025 | - | ||
| Alliance NYGT, LLC | Sherrill, NY | Independent Power Producer | 2 | 1.4 GWh | Dec 2025 | Oct 2025 | $1.85M | |
| Allie L.L.C. | Schenectady, NY | Independent Power Producer | 1 | 2.2 GWh | Dec 2025 | - | ||
| Allora Solar, LLC | Asheville, NC | Independent Power Producer | 1 | 169.2 GWh | May 2026 | Sep 2025 | $1.40M | |
| Alpaca Energy LLC | Omaha, NE | Independent Power Producer | 1 | 44.0 GWh | Dec 2025 | Oct 2025 | $1.12M | |
| Alpaugh 50, LLC | Valhalla, NY | - | - | - | Aug 2025 | $5.24M | ||
| Alpaugh North, LLC | Valhalla, NY | - | - | - | Aug 2025 | $1.93M | ||
| Alpha Gas And Electric LLC | Birmingham, AL | - | - | - | Oct 2025 | $38.75k | ||
| Alpha Generation Brandywine, LLC | Brandywine, MD | Independent Power Producer | 1 | 870.3 GWh | May 2026 | - | ||
| Alpha Value Solar, LLC | Raleigh, NC | Independent Power Producer | - | 9.4 GWh | Dec 2024 | - | ||
| Alphastruxure Service Co LP | Somerville, MA | Independent Power Producer | 1 | 3.3 GWh | Dec 2025 | - | ||
| Alpine Bess LLC | Scottsdale, AZ | Independent Power Producer | 1 | 122.6 GWh | Dec 2025 | - | ||
| Alsoenergy | Boulder, CA | Commercial | 1 | 3.4 GWh | Dec 2025 | - | ||
| ALTA Farms II Wind Project, LLC | Andover, MA | Independent Power Producer | 1 | 622.8 GWh | May 2026 | - | ||
| ALTA Farms Wind Project II, LLC | Andover, MA | - | - | - | Oct 2025 | $2.77M | ||
| ALTA Oak Realty, LLC | New York, NY | - | - | - | Oct 2025 | $475.37k | ||
| ALTA Wind I, LLC | Scottsdale, AZ | Independent Power Producer | 1 | 424.3 GWh | Dec 2025 | Sep 2025 | $16.96M | |
| ALTA Wind II, LLC | Scottsdale, AZ | Independent Power Producer | 1 | 336.0 GWh | Dec 2025 | Sep 2025 | $13.55M | |
| ALTA Wind III, LLC | Scottsdale, AZ | Independent Power Producer | 1 | 337.0 GWh | Dec 2025 | Sep 2025 | $13.71M | |
| ALTA Wind IV, LLC | Scottsdale, AZ | Independent Power Producer | 1 | 176.7 GWh | Dec 2025 | Sep 2025 | $7.32M | |
| ALTA Wind V, LLC | Scottsdale, AZ | Independent Power Producer | 1 | 267.9 GWh | Dec 2025 | Sep 2025 | $11.18M | |
| ALTA Wind X, LLC | Scottsdale, AZ | Independent Power Producer | 1 | 378.0 GWh | Dec 2025 | Sep 2025 | $13.54M | |
| ALTA Wind XI, LLC | Scottsdale, AZ | Independent Power Producer | 1 | 270.5 GWh | Dec 2025 | Sep 2025 | $9.26M | |
| Altagas Blythe Operations Inc | Port Huron, MI | Independent Power Producer | 1 | 348.8 GWh | May 2026 | - | ||
| Altagas Brush Energy Inc. | Ogdensburg, NY | - | - | - | Sep 2025 | $1.32M | ||
| Altagas Ripon Energy Inc. | Ripon, CA | Independent Power Producer | 1 | 1.1 GWh | Apr 2026 | Oct 2025 | $5.08k | |
| Altamonte Mall | Altamonte Springs, FL | Commercial | 1 | 1.4 GWh | Dec 2024 | - | ||
| Altavista Solar, LLC | Windsor Locks, CT | Independent Power Producer | 1 | 176.8 GWh | May 2026 | Sep 2025 | $2.14M | |
| Alton Post Office Solar, LLC | Houston, TX | - | - | - | Sep 2025 | $2.00M | ||
| Altona Solar, LLC | St. Louis, MO | - | - | - | Sep 2025 | $1.03M | ||
| Altop Energy Trading LLC | Houston, TX | - | - | - | Oct 2025 | $48.88M | $14.88M | |
| Altorfer Inc. | Bartonville, IL | Industrial | 3 | 1.0 GWh | Dec 2025 | - | ||
| Altus Power America Management, LLC | Stamford, CT | Independent Power Producer | 242 | 861.9 GWh | May 2026 | - | ||
| Am Wind Repower LLC | New York, NY | Independent Power Producer | 1 | 100.5 GWh | May 2026 | Sep 2025 | $1.56M | |
| Amadeus Wind LLC | Independent Power Producer | 1 | 758.0 GWh | May 2026 | - | |||
| Amana Society Service Co | Amana, IA | Investor-Owned Utility | 1 | 1.5 GWh | Dec 2025 | - | ||
| Amazon Energy LLC | Seattle, WA | - | - | - | Oct 2025 | $116.08M | $144.61M | |
| Ameren Illinois | Collinsville, IL | Investor-Owned Utility | 1 | 308.0 MWh | Dec 2025 | Oct 2025 | $12.47M | $47.56M |
| Ameresco | Knoxville, TN | Federally-Owned Utility|Independent Power Producer | 5 | 104.4 GWh | May 2026 | - | ||
| Ameresco Butte County LLC | Independent Power Producer | 1 | 16.2 GWh | Dec 2025 | - | |||
| Ameresco BWC Wading River LLC | Framingham, MA | Independent Power Producer | 1 | 1.8 GWh | Dec 2025 | - | ||
| Ameresco Chicopee Energy LLC | Framingham, MA | Independent Power Producer | 1 | 4.5 GWh | Dec 2025 | - | ||
| Ameresco Dallas LLC | Framingham, MA | Independent Power Producer | 1 | 27.1 GWh | Dec 2025 | - | ||
| Ameresco Delaware Central | Framingham, MA | Independent Power Producer | 1 | 28.5 GWh | Dec 2025 | - | ||
| Ameresco Delaware South | Framingham, MA | Independent Power Producer | 1 | 22.9 GWh | Dec 2025 | - | ||
| Ameresco Federal Solutions | Knoxville, TN | Commercial | 5 | 46.4 GWh | Dec 2025 | - | ||
| Ameresco Forward LLC | Independent Power Producer | 1 | 34.4 GWh | Dec 2025 | - | |||
| Ameresco Glendale Road Solar PV LLC | Framingham, MA | Independent Power Producer | 1 | 2.0 GWh | Dec 2025 | - | ||
| Ameresco HCE Solar LLC | Framingham, MA | Independent Power Producer | 1 | 9.0 GWh | Dec 2024 | - | ||
| Ameresco Janesville LLC | Framingham, MA | Independent Power Producer | 1 | 3.8 GWh | Dec 2025 | - | ||
| Ameresco Jefferson City LLC | Framingham, MA | Independent Power Producer | 1 | 17.8 GWh | Dec 2025 | - | ||
| Ameresco Johnson Canyon LLC | Framingham, MA | Independent Power Producer | 1 | 10.8 GWh | Dec 2025 | - | ||
| Ameresco Keller Canyon LLC | Framingham, MA | Independent Power Producer | 1 | 17.5 GWh | Dec 2025 | - | ||
| Ameresco Ox Mountain Energy LLC | Framingham, MA | Independent Power Producer | 1 | 88.9 GWh | May 2026 | - | ||
| Ameresco San Joaquin LLC | Independent Power Producer | 2 | 27.6 GWh | Dec 2025 | - | |||
| Ameresco Santa CRUZ Energy LLC | Framingham, MA | Independent Power Producer | 1 | 15.3 GWh | Dec 2025 | - | ||
| Ameresco Select Inc | Windsor Locks, CT | State-Owned Utility | 2 | 12.3 GWh | Dec 2025 | - | ||
| Ameresco Vasco Road LLC | Independent Power Producer | 1 | 35.6 GWh | Dec 2025 | - | |||
| American Bituminous Power LP | Grant Town, WV | Independent Power Producer | 1 | 214.3 GWh | Sep 2025 | - | ||
| American Crystal Sugar Co | Moorhead, MN | Industrial | 5 | 275.6 GWh | Dec 2025 | - | ||
| American Electric Power Service Corporation | Columbus, OH | - | - | - | Oct 2025 | $941.77M | $-32.66M | |
| American Falls Solar II, LLC | Miami, FL | Independent Power Producer | 1 | 50.9 GWh | May 2026 | Oct 2025 | $870.17k | |
| American Falls Solar LLC | Miami, FL | Independent Power Producer | 1 | 49.0 GWh | May 2026 | Oct 2025 | $890.10k | |
| American Kings Solar, LLC | Boca Raton, FL | - | - | - | Sep 2025 | $3.89M | ||
| American Mun Power-Ohio, Inc | Columbus, OH | Municipally-Owned Utility | 48 | 5.8 TWh | May 2026 | - | ||
| American Municipal Power, Inc. | Columbus, OH | - | - | - | Oct 2025 | $229.50M | $50.04M | |
| American Powernet Management, LP | Wyomissing, PA | - | - | - | Oct 2025 | $12.77M | $7.82M | |
| American Sugar Refining Inc. | West Palm Beach, FL | |Independent Power Producer | 3 | 54.8 GWh | May 2026 | - | ||
| Amethyst Solar LLC | Menlo Park, CA | Independent Power Producer | 1 | 4.4 GWh | Dec 2025 | - | ||
| Amherst College | Amherst, MA | Commercial | 1 | 8.8 GWh | Dec 2025 | - | ||
| Amherst Community Solar LLC | Houston, TX | Independent Power Producer | 1 | 7.4 GWh | Dec 2025 | - | ||
| Amite Solar, LLC | Juno Beach, FL | Independent Power Producer | 1 | 229.9 GWh | May 2026 | Sep 2025 | $2.72M | |
| AMOR IX LLC | Independent Power Producer | 1 | 118.1 GWh | May 2026 | - | |||
| Amp Ma Dudley | Denver, CO | Independent Power Producer | 1 | 7.7 GWh | Dec 2025 | - | ||
| Amp Ma Joe Jenny | Denver, CO | Independent Power Producer | 1 | 2.5 GWh | Dec 2024 | - | ||
| Ampersand Chasm Hydro LLC | Chateaugay, NY | Independent Power Producer | 1 | 818.0 MWh | Nov 2025 | - | ||
| Ampersand Gilman Hydro LP | Independent Power Producer | 1 | 2.2 GWh | Dec 2025 | - | |||
| Ampersand Hollow Dam Hydro LLC | Boston, MA | Independent Power Producer | 1 | 1.0 GWh | Dec 2025 | - | ||
| Ampersand Long Falls Hydro, LLC | Carthage, NY | Independent Power Producer | 1 | 5.4 GWh | Dec 2025 | - | ||
| Ampersand Ogdensburg Hydro, LLC | Boston, MA | Independent Power Producer | 1 | 4.4 GWh | Dec 2025 | - | ||
| Anaergia | Carlsbad, CA | Independent Power Producer | 2 | 343.9 MWh | Dec 2024 | - | ||
| Anaheim Public Utilities | Anaheim, CA | Municipally-Owned Utility | 1 | 1.8 GWh | Dec 2025 | Aug 2025 | ||
| Anderson Solar Farm, LLC | Jersey City, NJ | Independent Power Producer | 1 | 4.4 GWh | Dec 2025 | - | ||
| Anderson Wind I LLC | Greenville, SC | Independent Power Producer | 1 | 9.6 GWh | Dec 2025 | - | ||
| Anderson Wind II LLC | Greenville, SC | Independent Power Producer | 1 | 30.0 GWh | Dec 2025 | - | ||
| Andromeda Community Solar | Scottsdale, AZ | Independent Power Producer | 1 | 8.6 GWh | Dec 2025 | - | ||
| Angel Fire Energy Facility, LLC | Taos, NM | Cooperative | 1 | 15.4 GWh | Dec 2025 | - | ||
| Angelo Solar, LLC | Charlottesville, VA | Independent Power Producer | 1 | 541.1 GWh | May 2026 | - | ||
| Angiola East LLC | Independent Power Producer | 1 | 11.0 GWh | May 2026 | - | |||
| Angola Solar, LLC | Wilmington, DE | Independent Power Producer | 1 | 4.1 GWh | Dec 2025 | - | ||
| Anheuser-Busch Inc | St Louis, MO | Industrial | 3 | 119.9 GWh | May 2026 | - | ||
| Aniak Light & Power Co Inc | Aniak, AK | Investor-Owned Utility | 1 | 2.1 GWh | Dec 2024 | - | ||
| Annadale Community Clean Energy Projects LLC | New York, NY | Independent Power Producer | 2 | 65.3 GWh | Dec 2025 | - | ||
| ANP Blackstone Energy Company LLC | Blackstone, MA | Independent Power Producer | 1 | 3.2 TWh | May 2026 | Mar 2021 | ||
| Antares Community Solar | Scottsdale, AZ | Independent Power Producer | 1 | 5.5 GWh | Dec 2025 | - |
Top Power Plants in United States
| Plant | Location | Annual Generation | Initial Operation Date | Last Update | Fuel Types |
|---|---|---|---|---|---|
| Arkansas Nuclear One | Russellville, Arkansas | 14 TWh | Nov 1974 | May 2026 | Nuclear |
| Barry | Bucks, Alabama | 12 TWh | Jan 1954 | May 2026 | Natural Gas : 97.1% Bituminous Coal : 2.9% |
| Beaver Valley | Shippingport, Pennsylvania | 15 TWh | Aug 1976 | May 2026 | Nuclear |
| Bowen | Cartersville, Georgia | 13 TWh | Sep 1971 | May 2026 | Bituminous Coal : 99.8% |
| Braidwood Generation Station | Braceville, Illinois | 20 TWh | Jun 1988 | May 2026 | Nuclear |
| Browns Ferry | Decatur, Alabama | 31 TWh | Jul 1974 | May 2026 | Nuclear |
| Brunswick Nuclear | Southport, North Carolina | 15 TWh | Oct 1975 | May 2026 | Nuclear |
| Byron Generating Station | Byron, Illinois | 20 TWh | Aug 1985 | May 2026 | Nuclear |
| Calvert Cliffs Nuclear Power Plant | Lusby, Maryland | 15 TWh | Apr 1975 | May 2026 | Nuclear |
| Catawba | York, South Carolina | 18 TWh | May 1985 | May 2026 | Nuclear |
| Comanche Peak | Glen Rose, Texas | 20 TWh | Jul 1990 | May 2026 | Nuclear |
| Crystal River | Crystal River, Florida | 16 TWh | Sep 1966 | May 2026 | Natural Gas : 68.9% Bituminous Coal : 30.9% |
| Diablo Canyon | Avila Beach, California | 18 TWh | Apr 1985 | May 2026 | Nuclear |
| Donald C Cook | Bridgman, Michigan | 19 TWh | Jul 1975 | May 2026 | Nuclear |
| Dresden Generating Station | Morris, Illinois | 15 TWh | Jul 1970 | May 2026 | Nuclear |
| Edwin I Hatch | Baxley, Georgia | 14 TWh | Nov 1975 | May 2026 | Nuclear |
| Gavin Power, LLC | Cheshire, Ohio | 13 TWh | Sep 1974 | May 2026 | Bituminous Coal : 99.6% |
| Grand Coulee | Grand Coulee, Washington | 18 TWh | Feb 1941 | May 2026 | Water |
| Guernsey Power Station | Byesville, Ohio | 12 TWh | Jan 2023 | May 2026 | Natural Gas |
| H Allen Franklin Combined Cycle | Smiths, Alabama | 12 TWh | May 2002 | May 2026 | Natural Gas |
| Jack McDonough | Smyrna, Georgia | 18 TWh | Apr 1971 | May 2026 | Natural Gas |
| James H Miller Jr | Quinton, Alabama | 19 TWh | Sep 1978 | May 2026 | Subbituminous Coal : 99.0% Natural Gas : 1.0% |
| Joseph M Farley | Columbia, Alabama | 15 TWh | Nov 1977 | May 2026 | Nuclear |
| Labadie | Labadie, Missouri | 15 TWh | May 1970 | May 2026 | Subbituminous Coal : 99.9% |
| LaSalle Generating Station | Marseilles, Illinois | 18 TWh | Dec 1983 | May 2026 | Nuclear |
| Limerick | Sanatoga, Pennsylvania | 19 TWh | Jan 1986 | May 2026 | Nuclear |
| McGuire | Huntersville, North Carolina | 19 TWh | Aug 1981 | May 2026 | Nuclear |
| Millstone | Waterford, Connecticut | 17 TWh | Nov 1975 | May 2026 | Nuclear |
| Monroe (MI) | Monroe, Michigan | 16 TWh | Oct 1969 | May 2026 | Subbituminous Coal : 75.2% Bituminous Coal : 15.7% Petroleum Coke : 8.9% |
| Nine Mile Point Nuclear Station | Lycoming, New York | 16 TWh | Nov 1969 | May 2026 | Nuclear |
| North Anna | Mineral, Virginia | 16 TWh | May 1978 | May 2026 | Nuclear |
| Oak Grove (TX) | Franklin, Texas | 12 TWh | Mar 2010 | May 2026 | Lignite Coal : 99.1% Natural Gas : 0.9% |
| Oconee | Seneca, South Carolina | 22 TWh | Jun 1973 | May 2026 | Nuclear |
| Palo Verde | Wintersburg, Arizona | 31 TWh | Dec 1985 | May 2026 | Nuclear |
| Peach Bottom | Delta, Pennsylvania | 22 TWh | Jun 1974 | May 2026 | Nuclear |
| Prairie State Generating Station | Marissa, Illinois | 12 TWh | May 2012 | May 2026 | Bituminous Coal : 99.8% |
| PSEG Salem Generating Station | Hancocks Bridge, New Jersey | 19 TWh | May 1971 | May 2026 | Nuclear |
| Quad Cities Generating Station | Cordova, Illinois | 15 TWh | Nov 1972 | May 2026 | Nuclear |
| Robert Moses Niagara | Lewiston, New York | 14 TWh | Dec 1960 | May 2026 | Water |
| Sequoyah | Soddy Daisy, Tennessee | 17 TWh | Jun 1981 | May 2026 | Nuclear |
| South Texas Project | Wadsworth, Texas | 21 TWh | Jul 1988 | May 2026 | Nuclear |
| St Lucie | Jensen Beach, Florida | 15 TWh | Apr 1976 | May 2026 | Nuclear |
| Surry | Surry, Virginia | 12 TWh | Nov 1972 | May 2026 | Nuclear |
| TalenEnergy Susquehanna | Berwick, Pennsylvania | 19 TWh | May 1983 | May 2026 | Nuclear |
| Turkey Point | Homestead, Florida | 20 TWh | Mar 1967 | May 2026 | Nuclear : 64.2% Natural Gas : 35.8% |
| Union Power Station | El Dorado, Arkansas | 12 TWh | Dec 2002 | May 2026 | Natural Gas |
| Vogtle | Waynesboro, Georgia | 37 TWh | Apr 1987 | May 2026 | Nuclear |
| W A Parish | Thompsons, Texas | 14 TWh | May 1958 | May 2026 | Subbituminous Coal : 81.6% Natural Gas : 18.4% |
| Watts Bar Nuclear Plant | Spring City, Tennessee | 20 TWh | Apr 1996 | May 2026 | Nuclear |
| West County Energy Center | Loxahatchee, Florida | 18 TWh | Jul 2009 | May 2026 | Natural Gas |