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 |
|---|---|---|---|---|---|---|---|---|
| Sonoran Solar Energy, LLC | Juno Beach, FL | Independent Power Producer | 1 | 1.2 TWh | May 2026 | Sep 2025 | $13.02M | |
| South Carolina Genertg Co, Inc | Cayce, SC | Investor-Owned Utility | 1 | 2.7 TWh | May 2026 | - | ||
| South Carolina Public Service Authority | Moncks Corner, SC | State-Owned Utility | 16 | 19.7 TWh | May 2026 | Oct 2025 | $332.56M | $45.75M |
| South Field Energy, LLC | Boston, MA | Independent Power Producer | 1 | 8.7 TWh | May 2026 | Oct 2025 | $73.20M | |
| South Houston Green Power LLC | Texas City, TX | Industrial | 3 | 4.7 TWh | May 2026 | - | ||
| South Point Energy Center LLC | Houston, TX | Independent Power Producer | 1 | 2.6 TWh | May 2026 | Oct 2025 | $11.22M | $0 |
| South Texas Electric Coop, Inc | Nursery, TX | Cooperative | 3 | 1.0 TWh | May 2026 | Apr 2025 | $187.20k | |
| Southern California Edison Co | Rosemead, CA | Investor-Owned Utility | 95 | 4.9 TWh | May 2026 | Oct 2025 | $370.58M | $970.69M |
| Southern Illinois Power Coop | Marion, IL | Cooperative | 1 | 869.5 GWh | May 2026 | Oct 2025 | $3.69M | |
| Southern Illinois University Carbondale | Carbondale, IL | State-Owned Utility | 1 | 9.6 GWh | May 2026 | - | ||
| Southern Indiana Gas & ELEC Co | Evansville, IN | Investor-Owned Utility | 11 | 2.0 TWh | May 2026 | Oct 2025 | $33.22M | $8.35M |
| Southern Minnesota Beet Sugar | Renville, MN | Industrial | 1 | 27.6 GWh | May 2026 | - | ||
| Southern Power Co | Atlanta, GA | Investor-Owned Utility | 53 | 48.1 TWh | May 2026 | Sep 2025 | $195.58M | $6.65M |
| Southwestern Electric Power Co | Tulsa, OK | Investor-Owned Utility | 16 | 19.4 TWh | May 2026 | Sep 2025 | $40.06M | $10.95M |
| Southwestern Public Service Co | Amarillo, TX | Investor-Owned Utility | 18 | 17.1 TWh | May 2026 | Oct 2025 | $231.47M | $98.95M |
| Spanish Peaks Solar LLC | Boulder, CO | Independent Power Producer | 1 | 391.5 GWh | May 2026 | Sep 2025 | $2.23M | |
| Sparta Solar, LLC | Austin, TX | Independent Power Producer | 1 | 525.4 GWh | May 2026 | - | ||
| Spartanburg Commissioners PW | Spartanburg, SC | Municipally-Owned Utility | 1 | 863.0 MWh | May 2026 | - | ||
| Speedway Solar, LLC | New York, NY | Independent Power Producer | 1 | 379.1 GWh | May 2026 | Sep 2025 | ||
| Springdale Energy LLC | Springdale, PA | Independent Power Producer | 2 | 5.0 TWh | May 2026 | Sep 2025 | $45.05M | |
| SR Ailey, LLC | Nashville, TN | Independent Power Producer | 1 | 202.2 GWh | May 2026 | Sep 2025 | $1.74M | |
| SR Arlington II MT, LLC | Nashville, TN | Independent Power Producer | 1 | 245.7 GWh | May 2026 | - | ||
| SR Baxley, LLC | Nashville, TN | Independent Power Producer | 1 | 60.9 GWh | May 2026 | Sep 2025 | $436.50k | |
| SR Bell Buckle, LLC | Nashville, TN | Independent Power Producer | 1 | 77.8 GWh | May 2026 | Sep 2025 | $417.67k | |
| SR Camden, LLC | Nashville, TN | Independent Power Producer | 1 | 28.2 GWh | May 2026 | - | ||
| SR Cedar Springs, LLC | Nashville, TN | Independent Power Producer | 1 | 182.3 GWh | May 2026 | Sep 2025 | $1.29M | |
| SR Clay, LLC | Nashville, TN | Independent Power Producer | 1 | 256.4 GWh | May 2026 | Sep 2025 | $2.19M | |
| SR Desoto I, LLC | Nashville, TN | Independent Power Producer | 1 | 323.2 GWh | May 2026 | Sep 2025 | $2.38M | |
| SR Desoto II, LLC | Nashville, TN | Independent Power Producer | 1 | 168.4 GWh | May 2026 | Sep 2025 | $1.48M | |
| SR Desoto III, LLC | Nashville, TN | Independent Power Producer | 1 | 148.9 GWh | May 2026 | Sep 2025 | $1.52M | |
| SR Enterprise South, LLC | Nashville, TN | Independent Power Producer | 1 | 12.5 GWh | May 2026 | - | ||
| SR Hazlehurst III, LLC | Nashville, TN | Independent Power Producer | 1 | 79.6 GWh | May 2026 | Sep 2025 | $861.87k | |
| SR Houston Holdings, LLC | Nashville, TN | Independent Power Producer | 1 | 1.8 GWh | May 2026 | - | ||
| SR Jonesborough II, LLC | Nashville, TN | Independent Power Producer | 1 | 8.2 GWh | May 2026 | - | ||
| SR Lambert I, LLC | Nashville, TN | Independent Power Producer | 1 | 105.9 GWh | May 2026 | - | ||
| SR Lambert II, LLC | Nashville, TN | Independent Power Producer | 1 | 107.4 GWh | May 2026 | - | ||
| SR Lumpkin, LLC | Nashville, TN | Independent Power Producer | 1 | 236.1 GWh | May 2026 | Sep 2025 | $1.66M | |
| SR McKellar, LLC | Nashville, TN | Independent Power Producer | 1 | 144.3 GWh | May 2026 | Sep 2025 | $793.18k | |
| SR McNeal, LLC | Nashville, TN | Independent Power Producer | 1 | 59.5 GWh | May 2026 | Sep 2025 | $503.70k | |
| SR Meridian II, LLC | Nashville, TN | Independent Power Producer | 1 | 7.0 GWh | May 2026 | - | ||
| SR Meridian III, LLC | Nashville, TN | Independent Power Producer | 1 | 130.4 GWh | May 2026 | Sep 2025 | $1.57M | |
| SR Millington II, LLC | Nashville, TN | Independent Power Producer | 1 | 17.3 GWh | May 2026 | - | ||
| SR Millington, LLC | Nashville, TN | Independent Power Producer | 1 | 104.5 GWh | May 2026 | Sep 2025 | $1.07M | |
| SR Perry, LLC | Nashville, TN | Independent Power Producer | 1 | 169.1 GWh | May 2026 | Sep 2025 | $1.40M | |
| SR Russellville, LLC | Nashville, TN | Independent Power Producer | 1 | 423.5 GWh | May 2026 | - | ||
| SR Snipesville II, LLC | Nashville, TN | Independent Power Producer | 1 | 265.1 GWh | May 2026 | Sep 2025 | $1.86M | |
| SR Snipesville III, LLC | Nashville, TN | Independent Power Producer | 1 | 273.3 GWh | May 2026 | Sep 2025 | $2.58M | |
| SR Snipesville, LLC | Nashville, TN | Independent Power Producer | 1 | 216.7 GWh | May 2026 | Sep 2025 | $2.22M | |
| SR South Loving, LLC | Nashville, TN | Independent Power Producer | 1 | 49.9 GWh | May 2026 | Sep 2025 | $1.45M | |
| SR Terrell, LLC | Nashville, TN | Independent Power Producer | 1 | 179.3 GWh | May 2026 | Sep 2025 | $1.78M | |
| SR Toombs I, LLC | Nashville, TN | Independent Power Producer | 1 | 618.1 GWh | May 2026 | - | ||
| SR Turkey Creek, LLC | Nashville, TN | Independent Power Producer | 1 | 116.9 GWh | May 2026 | Sep 2025 | $994.09k | |
| St Joseph Energy Center LLC | New Carlisle, IN | Cooperative | 1 | 6.1 TWh | May 2026 | Oct 2025 | $42.63M | |
| St Mary's Hospital | Bayside, NY | |Commercial | 3 | 60.4 GWh | May 2026 | - | ||
| Stampede Solar Project LLC | Andover, MA | Independent Power Producer | 1 | 590.6 GWh | May 2026 | - | ||
| Stanton Clean Energy LLC | Juno Beach, FL | Independent Power Producer | 1 | 3.8 TWh | May 2026 | Sep 2025 | $7.76M | |
| Steel Solar, LLC | New York, NY | Independent Power Producer | 1 | 214.9 GWh | May 2026 | Sep 2025 | $2.39M | |
| Steele Flats Wind Project LLC | Juno Beach, FL | Independent Power Producer | 1 | 397.0 GWh | May 2026 | Dec 2024 | ||
| Stephens Ranch Wind Energy LLC | Commercial | 1 | 936.9 GWh | May 2026 | - | |||
| Stillhouse Solar LLC | Miami, FL | Independent Power Producer | 1 | 197.5 GWh | May 2026 | - | ||
| Storey Bend Solar, LLC | Juno Beach, FL | Independent Power Producer | 1 | 201.0 GWh | May 2026 | Sep 2025 | $1.88M | |
| Storey Energy Center, LLC | Juno Beach, FL | Independent Power Producer | 1 | 332.9 GWh | May 2026 | Sep 2025 | $4.06M | |
| STP Nuclear Operating Co | Wadsworth, TX | Municipally-Owned Utility | 1 | 22.5 TWh | May 2026 | - | ||
| Strata Manager, LLC | Durham, NC | Independent Power Producer | 162 | 1.3 TWh | May 2026 | - | ||
| Strauss Wind LLC | Carlsbad, CA | Independent Power Producer | 1 | 224.6 GWh | May 2026 | Oct 2025 | $1.92M | |
| Stryker 22, L.L.C. | Reno, NV | Independent Power Producer | 1 | -4.7 GWh | May 2026 | Oct 2025 | $1.78M | |
| Stuttgart Solar, LLC | Juno Beach, FL | Independent Power Producer | 1 | 162.7 GWh | May 2026 | Sep 2025 | $2.27M | |
| Sugar Creek Wind One LLC | Charlottesville, VA | Independent Power Producer | 1 | 613.2 GWh | May 2026 | Oct 2025 | $3.88M | |
| Sun Pond, LLC | Boston, MA | Independent Power Producer | 1 | 47.2 GWh | May 2026 | - | ||
| Sun Streams 2, LLC | Boston, MA | Independent Power Producer | 1 | 348.6 GWh | May 2026 | Sep 2025 | $1.57M | |
| Sun Streams Expansion, LLC | Boston, MA | Independent Power Producer | 1 | 814.4 GWh | May 2026 | Sep 2025 | $18.72M | |
| Sun Streams PVS, LLC | Boston, MA | Independent Power Producer | 1 | 476.0 GWh | May 2026 | Sep 2025 | $10.77M | |
| Sun Valley Solar LLC | Abbott, TX | Independent Power Producer | 1 | 621.0 GWh | May 2026 | - | ||
| SUNE Beacon Site 2, LLC | Palm Beach Gardens, FL | Independent Power Producer | 1 | 120.6 GWh | May 2026 | Sep 2025 | $2.22M | |
| SUNE Beacon Site 5, LLC | Palm Beach Gardens, FL | Independent Power Producer | 1 | 95.5 GWh | May 2026 | Sep 2025 | $1.80M | |
| Sunedison LLC | Belmont, CA | Independent Power Producer | 14 | 3.0 TWh | May 2026 | - | ||
| Sunflower County Solar Project, LLC | Walnut Creek, CA | Independent Power Producer | 1 | 175.1 GWh | May 2026 | - | ||
| Sunflower Electric Power Corp | Hays, KS | Cooperative | 8 | 2.2 TWh | May 2026 | Oct 2025 | $15.65M | $1.48M |
| Sunflower Energy Center, LLC | Chicago, IL | Independent Power Producer | 1 | 845.7 GWh | May 2026 | Oct 2025 | $781.76k | |
| Sunlight Road Solar, LLC | New York, NY | Independent Power Producer | 1 | 127.5 GWh | May 2026 | Sep 2025 | $1.24M | |
| Sunlight Storage, LLC | Juno Beach, FL | Independent Power Producer | 2 | -102.1 GWh | May 2026 | Sep 2025 | $10.35M | |
| Sunnybrook Farm Solar, LLC | Houston, TX | Independent Power Producer | 1 | 98.6 GWh | May 2026 | Sep 2025 | $1.28M | |
| Sunpin Holdings, LLC | LOS Angeles, CA | Independent Power Producer | 1 | 149.5 GWh | May 2026 | - | ||
| Sunraycer Assets I LLC | Nashville, TN | Independent Power Producer | 8 | 93.1 GWh | May 2026 | - | ||
| Sunrise Power Co LLC | Fellows, CA | Independent Power Producer | 1 | 2.3 TWh | May 2026 | Oct 2025 | $18.85M | $1.28M |
| Sunshine Gas Producers LLC | Detroit, MI | Investor-Owned Utility | 1 | 143.6 GWh | May 2026 | Sep 2025 | $2.93M | |
| Sunstrong Management, LLC | Houston, TX | Independent Power Producer|Investor-Owned Utility | 109 | 1.7 TWh | May 2026 | - | ||
| Superstition Energy Storage, LLC | The Woodlands, TX | Independent Power Producer | 1 | -17.4 GWh | May 2026 | Oct 2025 | $4.24M | |
| Sweeny Cogeneration LLC | Houston, TX | Industrial | 1 | 3.4 TWh | May 2026 | - | ||
| Sweetland Wind Farm, LLC | Boulder, CO | Independent Power Producer | 1 | 833.2 GWh | May 2026 | Oct 2025 | $887.22k | |
| SWG Arapahoe, LLC | Denver, CO | Independent Power Producer | 1 | 384.6 GWh | May 2026 | Jun 2025 | $3.88M | |
| Sycamore Cogeneration Co | Bakersfield, CA | Industrial | 1 | 149.9 GWh | May 2026 | Sep 2015 | ||
| Sylvamo Corporation - Eastover | Eastover, SC | Industrial | 1 | 597.3 GWh | May 2026 | - | ||
| Sylvamo North America LLC | Ticonderoga, NY | Industrial | 1 | 216.3 GWh | May 2026 | - | ||
| System Energy Resources, Inc | Jackson, MS | Investor-Owned Utility | 1 | 11.4 TWh | May 2026 | Sep 2025 | $144.80M | |
| Tahoka Wind, LLC | Chicago, IL | Independent Power Producer | 1 | 1.3 TWh | May 2026 | - | ||
| TAI Huntsville Solar, LLC | New York, NY | Independent Power Producer | 1 | 69.9 GWh | May 2026 | Oct 2025 | $820.85k | |
| TAI Norton Solar LLC | New York, NY | Independent Power Producer | 1 | 179.0 GWh | May 2026 | - | ||
| Talen Montana LLC | Colstrip, MT | Independent Power Producer | 2 | 8.6 TWh | May 2026 | Sep 2025 | $7.59M | $411.28k |
| Talenenergy Martins Creek LLC | Allentown, PA | Independent Power Producer | 9 | 3.0 TWh | May 2026 | - |
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 |