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 |
|---|---|---|---|---|---|---|---|---|
| Siems Community Solar LLC | Juno Beach, FL | Independent Power Producer | 1 | 2.1 GWh | Dec 2025 | - | ||
| Sierra Nevada Brewing Co | Chico, CA | Industrial | 1 | 11.4 GWh | Dec 2025 | - | ||
| Sierra Pacific Industries | Anderson, CA | Commercial | 11 | 876.9 GWh | Dec 2025 | - | ||
| Siete Solar LLC | New York, NY | Independent Power Producer | 1 | 37.0 GWh | Dec 2025 | - | ||
| Signal Hill Generating LLC | Houston, TX | Independent Power Producer | 1 | 7.2 GWh | Dec 2025 | - | ||
| Signal Hill Petroleum, Inc | Signal Hill, CA | Industrial | 1 | 42.2 GWh | May 2026 | - | ||
| Signal Street Operating, LLC | Westport, CT | Independent Power Producer | 1 | 3.1 GWh | Dec 2025 | - | ||
| Sikorsky Aircraft Corporation | Stratford, CT | Industrial | 1 | 70.1 GWh | Dec 2025 | - | ||
| Siler City Solar 2, LLC | Miami, FL | Independent Power Producer | 1 | 8.9 GWh | Dec 2025 | - | ||
| Silicon Valley Clean Water | Redwood City, CA | Municipally-Owned Utility | 1 | 8.9 GWh | Dec 2025 | - | ||
| Silveira Ranch Road Solar | San Francisco, CA | Independent Power Producer | 1 | 5.4 GWh | Dec 2025 | - | ||
| Silver Star I Power Partners LLC | Independent Power Producer | 1 | 221.4 GWh | Dec 2025 | - | |||
| Silverstreet Hydro | Westfield, MA | Independent Power Producer | 2 | 4.8 GWh | Dec 2024 | - | ||
| Simcoe Solar | Miami, FL | Independent Power Producer | 1 | 54.0 GWh | May 2026 | - | ||
| Simplot Leasing Corp | Boise, ID | Industrial | 1 | 73.2 GWh | May 2026 | - | ||
| Simplot Phosphates LLC | Rock Springs, WY | Industrial | 1 | 106.7 GWh | May 2026 | - | ||
| Siskiyou Power Authority | Yreka, CA | Municipally-Owned Utility | 1 | 24.4 GWh | Dec 2025 | - | ||
| Sit Renewables, Inc. | Irvine, CA | Commercial | 2 | 4.4 GWh | Dec 2025 | - | ||
| SJA Solar, LLC | Princeton, NJ | Independent Power Producer | 1 | 24.6 GWh | Dec 2025 | - | ||
| SJRR Power LLC | Princeton, NJ | Independent Power Producer | 1 | 84.7 GWh | Dec 2025 | - | ||
| Skeleton Creek Energy Center | Juno Beach, FL | Independent Power Producer | 1 | 1.3 TWh | May 2026 | Sep 2025 | ||
| Sky Global Power One Pledgor, LLC | Houston, TX | Independent Power Producer | 1 | 113.2 GWh | Dec 2025 | - | ||
| Sky Ranch Solar And Storage | Juno Beach, FL | Independent Power Producer | 1 | 552.2 GWh | May 2026 | - | ||
| Sky Volt, LLC | Greenfield, IA | Independent Power Producer | 1 | 5.0 GWh | Dec 2025 | - | ||
| Skyhigh 2 Solar | San LUIS Obispo, CA | Independent Power Producer | 16 | 89.7 GWh | Dec 2025 | - | ||
| Skysol Holdco LLC | Irvine, CA | Independent Power Producer | 1 | 133.9 GWh | May 2026 | - | ||
| SL Babylon, LLC | New York, NY | Independent Power Producer | 1 | 14.6 GWh | Dec 2025 | - | ||
| SL Evans, LLC | Houston, TX | Independent Power Producer | 2 | 6.1 GWh | Dec 2025 | - | ||
| SL Fredonia, LLC | Houston, TX | Independent Power Producer | 1 | 4.1 GWh | Dec 2025 | - | ||
| SL Jamestown II, LLC | Houston, TX | Independent Power Producer | 1 | 234.0 MWh | Dec 2025 | - | ||
| SL Jamestown, LLC | Houston, TX | Independent Power Producer | 1 | 337.0 MWh | Dec 2025 | - | ||
| SL Sherman II, LLC | Houston, TX | Independent Power Producer | 1 | 3.5 GWh | Dec 2025 | - | ||
| SL Sherman, LLC | Houston, TX | Independent Power Producer | 1 | 2.9 GWh | Dec 2025 | - | ||
| Slate Hill Solar LLC | San Francisco, CA | Independent Power Producer | 1 | 3.7 GWh | Dec 2025 | - | ||
| Sloughhouse Solar, LLC | New York, NY | Independent Power Producer | 1 | 97.9 GWh | May 2026 | Sep 2025 | ||
| Small Mouth Bass Solar Partners LLC | Overland Park, KS | Independent Power Producer | 1 | 3.8 GWh | Dec 2024 | - | ||
| Smeco Solar LLC | Hughesville, MD | Cooperative | 1 | 6.9 GWh | Dec 2025 | - | ||
| Smithfield Packaged Meats Corp (Wilson) | Wilson, NC | Industrial | 2 | 1.9 GWh | Dec 2025 | - | ||
| Smoky Hills Wind Farm I LLC | Andover, MA | Independent Power Producer | 1 | 162.3 GWh | Dec 2025 | - | ||
| SMS DC CS01B, LLC | Ridgewood, NJ | Independent Power Producer | 1 | 1.7 GWh | Dec 2025 | - | ||
| Snider Industries Inc | Marshall, TX | Industrial | 1 | 15.1 GWh | Dec 2025 | - | ||
| Snow Mountain Hydro LLC | Independent Power Producer | 4 | 39.2 GWh | Dec 2025 | - | |||
| Snowbird Corporation | Snowbird, UT | Independent Power Producer | 1 | 15.9 GWh | Dec 2025 | - | ||
| Snowden River Parkway, LLC | Arlington, VA | Independent Power Producer | 1 | 3.1 GWh | Dec 2025 | - | ||
| Soboba Band Of Luiseno Indians | San Jacinto, CA | Independent Power Producer | 1 | 3.9 GWh | Dec 2025 | - | ||
| Socore Clovis 1 LLC | Chicago, IL | Independent Power Producer | 1 | 4.8 GWh | Dec 2025 | - | ||
| Socore Energy LLC | Chicago, IL | Independent Power Producer | 87 | 234.5 GWh | May 2026 | - | ||
| Sol Me Augusta 13 York Farm, LLC | Houston, TX | Independent Power Producer | 1 | 1.5 GWh | Dec 2025 | - | ||
| Sol Orchard Imperial 1, LLC | Wilmington, DE | Independent Power Producer | 1 | 47.4 GWh | Dec 2025 | - | ||
| Sol Systems | Washington, DC | Independent Power Producer | 31 | 456.1 GWh | May 2026 | - | ||
| Solaireholman 1, LLC | San Francisco, CA | Independent Power Producer | 1 | 98.9 GWh | May 2026 | - | ||
| Solamerica Energy LLC | Independent Power Producer | 7 | 7.9 GWh | Dec 2025 | - | |||
| Solano County - (Ca) | Fairfield, CA | Municipally-Owned Utility | 1 | 8.6 GWh | Dec 2025 | - | ||
| Solano Irrigation District | Vacaville, CA | Political Subdivision | 1 | 41.7 GWh | Dec 2025 | - | ||
| Solar Breakers LLC | Juno Beach, FL | Independent Power Producer | 2 | 15.2 GWh | Dec 2025 | - | ||
| Solar Community I LLC | Scottsdale, AZ | Independent Power Producer | 1 | 15.7 GWh | Dec 2025 | - | ||
| Solar DG Ca Long Beach, LLC | Baltimore, MD | Independent Power Producer | 1 | 3.6 GWh | Dec 2025 | - | ||
| Solar DG Il 1 LLC | New York, NY | Independent Power Producer | 1 | 3.5 GWh | Dec 2025 | - | ||
| Solar DG Il 2, LLC | New York, NY | Independent Power Producer | 1 | 4.3 GWh | Dec 2025 | - | ||
| Solar DG Il 3 LLC | New York, NY | Independent Power Producer | 1 | 4.4 GWh | Dec 2025 | - | ||
| Solar DG Il 4, LLC | New York, NY | Independent Power Producer | 1 | 4.1 GWh | Dec 2025 | - | ||
| Solar DG Il 5, LLC | New York, NY | Independent Power Producer | 1 | 3.5 GWh | Dec 2025 | - | ||
| Solar DG MD Appleton, LLC | New York, NY | Independent Power Producer | 1 | 1.7 GWh | Dec 2025 | - | ||
| Solar DG MD Cherry Hill, LLC | New York, NY | Independent Power Producer | 1 | 4.4 GWh | Dec 2025 | - | ||
| Solar DG MD Holabird Ajcfb, LLC | New York, NY | Independent Power Producer | 2 | 4.4 GWh | Dec 2025 | - | ||
| Solar DG MD Holabird Broening ACC, LLC | New York, NY | Independent Power Producer | 2 | 4.4 GWh | Dec 2025 | - | ||
| Solar DG MD Ten Oaks LLC | New York, NY | Independent Power Producer | 1 | 3.7 GWh | Dec 2025 | - | ||
| Solar DG NJ BEMS East, LLC | Baltimore, MD | Independent Power Producer | 1 | 2.1 GWh | Dec 2025 | - | ||
| Solar DG NJ BEMS West, LLC | Baltimore, MD | Independent Power Producer | 1 | 5.8 GWh | Dec 2025 | - | ||
| Solar DG NJ Brookdale, LLC | New York, NY | Independent Power Producer | 1 | 4.9 GWh | Dec 2025 | - | ||
| Solar DG Ny Sunnyside 1, LLC | Baltimore, MD | Independent Power Producer | 1 | 8.4 GWh | Dec 2025 | - | ||
| Solar DG Ny Sunnyside 2, LLC | Baltimore, MD | Independent Power Producer | 1 | 8.4 GWh | Dec 2025 | - | ||
| Solar Lee, LLC | Calgary, AB | Independent Power Producer | 1 | 7.4 GWh | Dec 2025 | - | ||
| Solar Mule, LLC | Scottsdale, AZ | Independent Power Producer | 1 | 2.2 GWh | Dec 2024 | - | ||
| Solar Oasis LLC | Independent Power Producer | 1 | 55.4 GWh | Dec 2025 | - | |||
| Solar Planet Power | Columbus, OH | Independent Power Producer | 9 | 38.0 GWh | Dec 2025 | - | ||
| Solar Provider Group MN I LLC | New York, NY | Independent Power Producer | 1 | 1.9 GWh | Dec 2025 | - | ||
| Solar PV Development NM 18 II LLC | New York, NY | Independent Power Producer | 1 | 66.6 GWh | May 2026 | - | ||
| Solar Star California II LLC | Depere, WI | Independent Power Producer | 2 | 3.9 GWh | Dec 2025 | - | ||
| Solar Star California Lxxviii, LLC | Richmond, CA | Independent Power Producer | 1 | 3.2 GWh | Dec 2025 | - | ||
| Solar Star California XXXI, LLC | Richmond, CA | Independent Power Producer | 1 | 11.4 GWh | Dec 2025 | - | ||
| Solar Star California Xxxii, LLC | Scottsdale, AZ | Independent Power Producer | 1 | 12.1 GWh | Dec 2025 | - | ||
| Solar Star Coastal Pirate, LLC | Houston, TX | Independent Power Producer | 1 | 4.2 GWh | Dec 2025 | - | ||
| Solar Star Colorado II LLC | Richmond, CA | Independent Power Producer | 1 | 10.1 GWh | Dec 2025 | - | ||
| Solar Star NAFB LLC | San Francisco, CA | Commercial | 1 | 24.9 GWh | Dec 2025 | - | ||
| Solar Star New Jersey VI LLC | Depere, WI | Independent Power Producer | 1 | 1.9 GWh | Dec 2025 | - | ||
| Solar Star Prime 1 LLC | San Jose, CA | Independent Power Producer | 2 | 4.0 GWh | Dec 2025 | - | ||
| Solar Star Prime 2, LLC | San Jose, CA | Independent Power Producer | 1 | 7.4 GWh | Dec 2025 | - | ||
| Solar Star Prime 3, LLC | Seattle, WA | Independent Power Producer | 1 | 8.7 GWh | Dec 2025 | - | ||
| Solar Star Prime 4 LLC | Austin, TX | Independent Power Producer | 1 | 6.1 GWh | Dec 2024 | - | ||
| Solar Star Prime 5, LLC | Houston, TX | Independent Power Producer | 1 | 3.1 GWh | Dec 2025 | - | ||
| Solar Star Prime 6, LLC | San Jose, CA | Independent Power Producer | 1 | 3.6 GWh | Dec 2025 | - | ||
| Solar Star River SLB, LLC | Austin, TX | Independent Power Producer | 4 | 25.1 GWh | Dec 2025 | - | ||
| Solar Star Urbana Landfill Central, LLC | Boston, MA | Independent Power Producer | 1 | 3.7 GWh | Dec 2025 | - | ||
| Solar Star Urbana Landfill East, LLC | Boston, MA | Independent Power Producer | 1 | 3.8 GWh | Dec 2025 | - | ||
| Solarenewal LLC | San Francisco, CA | Independent Power Producer | 3 | 5.2 GWh | Dec 2024 | - | ||
| Solid Waste Authority Of Palm Beach Co | West Palm Beach, FL | Political Subdivision | 2 | 936.0 GWh | May 2026 | - | ||
| Solitude Solar New Hartford Oxford Microgrid, LLC | Houston, TX | Independent Power Producer | 1 | 268.0 MWh | Dec 2025 | - | ||
| Solitude Solar Russell County RD 21 Microgrid, LLC | Houston, TX | Independent Power Producer | 1 | 2.3 GWh | Dec 2025 | - | ||
| Solops 371 Hoes LLC | Baltimore, MD | Independent Power Producer | 1 | 1.9 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 |