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 |
|---|---|---|---|---|---|---|---|---|
| SPPW1, LLC | Omaha, NE | Independent Power Producer | 1 | 27.4 GWh | Dec 2024 | - | ||
| Spotlight Power LLC | Houston, TX | - | - | - | Oct 2025 | $10.00M | $8.91M | |
| Spinning Spur Wind LLC | Phoenix, AZ | - | - | - | Oct 2025 | $3.89M | ||
| Spica Community Solar | Scottsdale, AZ | Independent Power Producer | 1 | 3.4 GWh | Dec 2024 | - | ||
| SPG Il Hurricane Creek Solar LLC | San Francisco, CA | Independent Power Producer | 1 | 4.1 GWh | Dec 2024 | - | ||
| SPG Il Brush Creek I Solar LLC | San Francisco, CA | Independent Power Producer | 1 | 4.3 GWh | Dec 2024 | - | ||
| Speedway Solar, LLC | New York, NY | Independent Power Producer | 1 | 292.7 GWh | Mar 2026 | Sep 2025 | ||
| Spectrum Solar LLC | Independent Power Producer | 1 | 10.7 GWh | Dec 2024 | - | |||
| Spectrum Nevada Solar, LLC | Birmingham, AL | - | - | - | Sep 2025 | $3.30M | ||
| Spearville 3, LLC | Phoenix, AZ | - | - | - | Oct 2025 | $1.41M | ||
| Spartanburg Commissioners PW | Spartanburg, SC | Municipally-Owned Utility | 1 | 1.2 GWh | Mar 2026 | - | ||
| Spartan Renewable Energy, Inc. | Cadillac, MI | - | - | - | Sep 2025 | $132.65k | $1.56M | |
| Spartacus Energy Services, LLC | Birmingham, AL | - | - | - | Oct 2025 | $165.02k | $166.38k | |
| Sparta Solar, LLC | Austin, TX | Independent Power Producer | 1 | 529.8 GWh | Mar 2026 | - | ||
| Sparta Energy, Inc | Birmingham, AL | - | - | - | Sep 2025 | $803.52k | ||
| Spark Energy, LLC | Houston, TX | - | - | - | Oct 2025 | $70.59k | ||
| Spanish Peaks Solar LLC | Boulder, CO | Independent Power Producer | 1 | 391.0 GWh | Mar 2026 | Sep 2025 | $2.23M | |
| Spanish Fork Wind Park 2, LLC | Scottsdale, AZ | Independent Power Producer | 1 | 46.8 GWh | Mar 2026 | - | ||
| SP Solar 5, LLC | Asheville, NC | Independent Power Producer | 1 | 3.9 GWh | Dec 2024 | - | ||
| SP Sandhills Solar, LLC | Birmingham, AL | - | - | - | Sep 2025 | $5.32M | ||
| SP Pawpaw Solar, LLC | Birmingham, AL | - | - | - | Sep 2025 | $1.15M | ||
| SP Decatur Parkway Solar, LLC | Birmingham, AL | - | - | - | Sep 2025 | $3.54M | ||
| SP Cimarron I, LLC | Birmingham, AL | - | - | - | Sep 2025 | $2.27M | ||
| SP Butler Solar, LLC | Birmingham, AL | - | - | - | Sep 2025 | $3.95M | ||
| Southwick Solar, LLC | Asheville, NC | Independent Power Producer | 1 | 6.1 GWh | Dec 2024 | - | ||
| Southwestern Public Service Co | Amarillo, TX | Investor-Owned Utility | 16 | 17.1 TWh | Mar 2026 | Oct 2025 | $231.47M | $98.95M |
| Southwestern Power Administration | Tulsa, OK | - | - | - | Oct 2025 | $1.59M | $4.24M | |
| Southwestern Electric Power Co | Tulsa, OK | Investor-Owned Utility | 16 | 19.4 TWh | Mar 2026 | Sep 2025 | $40.06M | $10.95M |
| Southern Sky Renewable Energy Berkley, LLC | Jersey City, NJ | Independent Power Producer | 1 | 3.5 GWh | Dec 2024 | - | ||
| Southern Power Co | Atlanta, GA | Investor-Owned Utility | 53 | 48.1 TWh | Mar 2026 | Sep 2025 | $195.58M | $6.65M |
| Southern Minnesota Mun P AGNY | Rochester, MN | Political Subdivision | 5 | 53.6 GWh | Dec 2024 | - | ||
| Southern Minnesota Beet Sugar | Renville, MN | Industrial | 1 | 28.1 GWh | Mar 2026 | - | ||
| Southern Indiana Gas & ELEC Co | Evansville, IN | Investor-Owned Utility | 11 | 2.2 TWh | Mar 2026 | Oct 2025 | $33.22M | $8.35M |
| Southern Illinois University Carbondale | Carbondale, IL | State-Owned Utility | 1 | 9.2 GWh | Mar 2026 | - | ||
| Southern Illinois Power Coop | Marion, IL | Cooperative | 1 | 840.7 GWh | Mar 2026 | Oct 2025 | $3.69M | |
| Southern Idaho Solid Waste | Burley, ID | Political Subdivision | 1 | 25.8 GWh | Dec 2024 | - | ||
| Southern Electric Generating Company | Birmingham, AL | - | - | - | Sep 2025 | $70.70M | ||
| Southern Current One, LLC | Asheville, NC | Independent Power Producer | 1 | 15.3 GWh | Dec 2024 | - | ||
| Southern Company Services, Inc. (As Agent) | Birmingham, AL | - | - | - | Oct 2025 | $146.97M | $6.27M | |
| Southern California Edison Co | Rosemead, CA | Investor-Owned Utility | 95 | 6.6 TWh | Mar 2026 | Oct 2025 | $370.58M | $970.69M |
| Southeastern Solar Farm Fund, LLC | Atlanta, GA | Independent Power Producer | 4 | 18.7 GWh | Dec 2024 | - | ||
| Southeastern Chester County Refuse AUTH | West Grove, PA | Municipally-Owned Utility | 1 | 428.1 MWh | Dec 2024 | - | ||
| Southeast Alaska Power Agency | Ketchikan, AK | Political Subdivision | 2 | 219.3 GWh | Dec 2024 | - | ||
| Southbridge Recycling And Disposal Park | Southbridge, MA | Independent Power Producer | 1 | 13.0 GWh | Dec 2024 | - | ||
| Southampton Solar, LLC | Richmond, VA | - | - | - | Oct 2025 | $2.34M | ||
| South Texas Electric Coop, Inc | Nursery, TX | Cooperative | 3 | 845.1 GWh | Mar 2026 | Apr 2025 | $187.20k | |
| South Street Solar, LLC | Beltsville, MD | Independent Power Producer | 1 | 3.7 GWh | Dec 2024 | - | ||
| South San Joaquin IRR District | Manteca, CA | Political Subdivision | 1 | 2.2 GWh | Dec 2024 | - | ||
| South River Onsite Generation, LLC | Columbus, OH | - | - | - | Sep 2025 | $121.31k | ||
| South Point Energy Center LLC | Houston, TX | Independent Power Producer | 1 | 2.3 TWh | Mar 2026 | Oct 2025 | $11.22M | $0 |
| South Peak Wind LLC | Duluth, MN | - | - | - | Sep 2025 | $1.06M | ||
| South Oak Hospital | Amityville, NY | Commercial | 1 | 7.4 GWh | Dec 2024 | - | ||
| South Hurlburt Wind, LLC | Gatineau, QC | - | - | - | Sep 2025 | $19.62M | ||
| South Houston Green Power LLC | Texas City, TX | Industrial | 3 | 4.7 TWh | Mar 2026 | - | ||
| South Garden LLC | Minneapolis, MN | Independent Power Producer | 1 | 2.3 GWh | Dec 2024 | - | ||
| South Fork Wind, LLC | Minneapolis, MN | Independent Power Producer | 1 | 57.1 GWh | Dec 2024 | Sep 2025 | $22.46M | |
| South Field Energy, LLC | Boston, MA | Independent Power Producer | 1 | 7.9 TWh | Mar 2026 | Oct 2025 | $73.20M | |
| South Feather Water And Power Agency | Oroville, CA | Political Subdivision | 4 | 443.5 GWh | Dec 2024 | - | ||
| South Energy Investments LLC | Ballston Lake, NY | Independent Power Producer | 1 | 42.2 GWh | Dec 2024 | Sep 2025 | $690.03k | |
| South County Packing | King City, CA | Industrial | 1 | 9.3 GWh | Dec 2024 | - | ||
| South Cheyenne Solar, LLC | Birmingham, AL | - | - | - | Sep 2025 | $4.14M | ||
| South Chestnut LLC | Portland, OR | - | - | - | Sep 2025 | $1.39M | ||
| South Carolina Public Service Authority | Moncks Corner, SC | State-Owned Utility | 16 | 18.0 TWh | Mar 2026 | Oct 2025 | $332.56M | $45.75M |
| South Carolina Genertg Co, Inc | Cayce, SC | Investor-Owned Utility | 1 | 2.6 TWh | Mar 2026 | - | ||
| South Carolina Generating Company, Inc. | Richmond, VA | - | - | - | Oct 2025 | $59.52M | ||
| South Boston Energy LLC | Cooperative | 1 | 385.3 GWh | Dec 2024 | - | |||
| South Bay Energy Corp. | Brooklyn, NY | - | - | - | Oct 2025 | $339.35k | $285.26k | |
| South Atlantic Services Inc | Wilmington, NC | Industrial | 1 | 3.0 GWh | Dec 2024 | - | ||
| Soscol Ferry Solar | San Francisco, CA | Independent Power Producer | 1 | 5.0 GWh | Dec 2024 | - | ||
| Sophie Solar LLC | Menlo Park, CA | Independent Power Producer | 1 | 8.0 GWh | Dec 2024 | - | ||
| Sooner Wind, LLC | Juno Beach, FL | - | - | - | Oct 2025 | $49.87k | ||
| Sonoran West Solar Holdings LLC | Oakland, CA | Independent Power Producer | 1 | - | - | Oct 2025 | $7.36M | $85.24k |
| Sonoran West Solar Holdings 2, LLC | Houston, TX | - | - | - | Oct 2025 | $5.40M | ||
| Sonoran Solar Energy, LLC | Juno Beach, FL | Independent Power Producer | 1 | 1.2 TWh | Mar 2026 | Sep 2025 | $13.02M | |
| Sonoco Products Co | Hartsville, SC | |Industrial | 2 | 71.4 GWh | Mar 2026 | - | ||
| Sonny Solar, LLC | Asheville, NC | - | - | - | Sep 2025 | $872.06k | ||
| Somonauk Road Solar 1, LLC | Boston, MA | Independent Power Producer | 1 | 4.4 GWh | Dec 2024 | - | ||
| Somerville Solar, LLC | New York, NY | Independent Power Producer | 1 | 3.4 GWh | Dec 2024 | - | ||
| Somerset Windpower LLC | Juno Beach, FL | Independent Power Producer | - | - | Dec 2017 | Oct 2025 | $44.77k | |
| Solverde 1, LLC | Louisville, CO | - | - | - | Sep 2025 | $3.92M | ||
| SOLV Energy, LLC | San Diego, CA | Independent Power Producer | 1 | 23.3 GWh | Dec 2024 | - | ||
| Solutia Inc-Indian | St Louis, MO | Industrial | 1 | 5.0 GWh | Feb 2026 | - | ||
| Soluga Solar, LLC | Asheville, NC | Independent Power Producer | 1 | 6.4 GWh | Dec 2024 | - | ||
| Soltage VUL 1600 Chemung, LLC | Jersey City, NJ | Independent Power Producer | 1 | 2.1 GWh | Dec 2024 | - | ||
| Solriver Capital LLC | Denver, CO | Independent Power Producer | 28 | 193.0 GWh | Dec 2024 | - | ||
| Solops 371 Hoes LLC | Baltimore, MD | Independent Power Producer | 1 | 1.9 GWh | Dec 2024 | - | ||
| Solomon Forks Wind Project, LLC | Houston, TX | - | - | - | Sep 2025 | $2.15M | ||
| Solitude Solar Russell County RD 21 Microgrid, LLC | Houston, TX | Independent Power Producer | 1 | 589.0 MWh | Dec 2024 | - | ||
| Solid Waste Authority Of Palm Beach Co | West Palm Beach, FL | Political Subdivision | 2 | 938.8 GWh | Mar 2026 | - | ||
| Soldier Creek Wind LLC | Juno Beach, FL | Independent Power Producer | 1 | 1.1 TWh | Mar 2026 | Sep 2025 | $3.65M | |
| Solarenewal LLC | San Francisco, CA | Independent Power Producer | 3 | 5.2 GWh | Dec 2024 | - | ||
| Solar Star Urbana Landfill East, LLC | Boston, MA | Independent Power Producer | 1 | 3.7 GWh | Dec 2024 | - | ||
| Solar Star Urbana Landfill Central, LLC | Boston, MA | Independent Power Producer | 1 | 3.8 GWh | Dec 2024 | - | ||
| Solar Star River SLB, LLC | Austin, TX | Independent Power Producer | 4 | 24.1 GWh | Dec 2024 | - | ||
| Solar Star Prime 6, LLC | San Jose, CA | Independent Power Producer | 1 | 3.2 GWh | Dec 2024 | - | ||
| Solar Star Prime 5, LLC | Houston, TX | Independent Power Producer | 1 | 2.7 GWh | Dec 2024 | - | ||
| Solar Star Prime 4 LLC | Austin, TX | Independent Power Producer | 1 | 6.1 GWh | Dec 2024 | - | ||
| Solar Star Prime 3, LLC | Seattle, WA | Independent Power Producer | 1 | 7.9 GWh | Dec 2024 | - | ||
| Solar Star Prime 2, LLC | San Jose, CA | Independent Power Producer | 1 | 7.1 GWh | Dec 2024 | - | ||
| Solar Star Prime 1 LLC | San Jose, CA | Independent Power Producer | 2 | 3.6 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 | Mar 2026 | Nuclear |
| Barry | Bucks, Alabama | 12 TWh | Jan 1954 | Mar 2026 | Natural Gas : 95.8% Bituminous Coal : 4.2% |
| Beaver Valley | Shippingport, Pennsylvania | 15 TWh | Aug 1976 | Mar 2026 | Nuclear |
| Bowen | Cartersville, Georgia | 13 TWh | Sep 1971 | Mar 2026 | Bituminous Coal : 99.8% |
| Braidwood Generation Station | Braceville, Illinois | 20 TWh | Jun 1988 | Mar 2026 | Nuclear |
| Browns Ferry | Decatur, Alabama | 30 TWh | Jul 1974 | Mar 2026 | Nuclear |
| Brunswick Nuclear | Southport, North Carolina | 16 TWh | Oct 1975 | Mar 2026 | Nuclear |
| Byron Generating Station | Byron, Illinois | 19 TWh | Aug 1985 | Mar 2026 | Nuclear |
| Calvert Cliffs Nuclear Power Plant | Lusby, Maryland | 15 TWh | Apr 1975 | Mar 2026 | Nuclear |
| Catawba | York, South Carolina | 19 TWh | May 1985 | Mar 2026 | Nuclear |
| Comanche Peak | Glen Rose, Texas | 20 TWh | Jul 1990 | Mar 2026 | Nuclear |
| Crystal River | Crystal River, Florida | 16 TWh | Sep 1966 | Mar 2026 | Natural Gas : 68.9% Bituminous Coal : 30.9% |
| Diablo Canyon | Avila Beach, California | 17 TWh | Apr 1985 | Mar 2026 | Nuclear |
| Donald C Cook | Bridgman, Michigan | 18 TWh | Jul 1975 | Mar 2026 | Nuclear |
| Dresden Generating Station | Morris, Illinois | 15 TWh | Jul 1970 | Mar 2026 | Nuclear |
| Edwin I Hatch | Baxley, Georgia | 14 TWh | Nov 1975 | Mar 2026 | Nuclear |
| Gavin Power, LLC | Cheshire, Ohio | 13 TWh | Sep 1974 | Mar 2026 | Bituminous Coal : 99.6% |
| Grand Coulee | Grand Coulee, Washington | 18 TWh | Feb 1941 | Mar 2026 | Water |
| Guernsey Power Station | Byesville, Ohio | 12 TWh | Jan 2023 | Mar 2026 | Natural Gas |
| H Allen Franklin Combined Cycle | Smiths, Alabama | 12 TWh | May 2002 | Mar 2026 | Natural Gas |
| Hines Energy Complex | Bartow, Florida | 12 TWh | Mar 1999 | Mar 2026 | Natural Gas |
| Jack McDonough | Smyrna, Georgia | 18 TWh | Apr 1971 | Mar 2026 | Natural Gas |
| James H Miller Jr | Quinton, Alabama | 19 TWh | Sep 1978 | Mar 2026 | Subbituminous Coal : 99.1% Natural Gas : 0.9% |
| Joseph M Farley | Columbia, Alabama | 13 TWh | Nov 1977 | Mar 2026 | Nuclear |
| Labadie | Labadie, Missouri | 16 TWh | May 1970 | Mar 2026 | Subbituminous Coal : 99.9% |
| LaSalle Generating Station | Marseilles, Illinois | 19 TWh | Dec 1983 | Mar 2026 | Nuclear |
| Limerick | Sanatoga, Pennsylvania | 19 TWh | Jan 1986 | Mar 2026 | Nuclear |
| McGuire | Huntersville, North Carolina | 19 TWh | Aug 1981 | Mar 2026 | Nuclear |
| Millstone | Waterford, Connecticut | 17 TWh | Nov 1975 | Mar 2026 | Nuclear |
| Monroe (MI) | Monroe, Michigan | 16 TWh | Oct 1969 | Mar 2026 | Subbituminous Coal : 75.0% Bituminous Coal : 16.0% Petroleum Coke : 8.9% |
| Nine Mile Point Nuclear Station | Lycoming, New York | 16 TWh | Nov 1969 | Mar 2026 | Nuclear |
| North Anna | Mineral, Virginia | 16 TWh | May 1978 | Mar 2026 | Nuclear |
| Oconee | Seneca, South Carolina | 22 TWh | Jun 1973 | Mar 2026 | Nuclear |
| Okeechobee Clean Energy Center | Okeechobee, Florida | 12 TWh | Feb 2019 | Feb 2026 | Natural Gas |
| Palo Verde | Wintersburg, Arizona | 31 TWh | Dec 1985 | Mar 2026 | Nuclear |
| Peach Bottom | Delta, Pennsylvania | 22 TWh | Jun 1974 | Mar 2026 | Nuclear |
| Prairie State Generating Station | Marissa, Illinois | 12 TWh | May 2012 | Mar 2026 | Bituminous Coal : 99.8% |
| PSEG Salem Generating Station | Hancocks Bridge, New Jersey | 19 TWh | May 1971 | Mar 2026 | Nuclear |
| Quad Cities Generating Station | Cordova, Illinois | 16 TWh | Nov 1972 | Mar 2026 | Nuclear |
| Robert Moses Niagara | Lewiston, New York | 14 TWh | Dec 1960 | Mar 2026 | Water |
| Sequoyah | Soddy Daisy, Tennessee | 15 TWh | Jun 1981 | Mar 2026 | Nuclear |
| South Texas Project | Wadsworth, Texas | 21 TWh | Jul 1988 | Mar 2026 | Nuclear |
| St Lucie | Jensen Beach, Florida | 16 TWh | Apr 1976 | Mar 2026 | Nuclear |
| Surry | Surry, Virginia | 13 TWh | Nov 1972 | Mar 2026 | Nuclear |
| TalenEnergy Susquehanna | Berwick, Pennsylvania | 19 TWh | May 1983 | Mar 2026 | Nuclear |
| Turkey Point | Homestead, Florida | 20 TWh | Mar 1967 | Mar 2026 | Nuclear : 68.1% Natural Gas : 31.9% |
| Vogtle | Waynesboro, Georgia | 37 TWh | Apr 1987 | Mar 2026 | Nuclear |
| W A Parish | Thompsons, Texas | 15 TWh | May 1958 | Mar 2026 | Subbituminous Coal : 82.1% Natural Gas : 17.9% |
| Watts Bar Nuclear Plant | Spring City, Tennessee | 18 TWh | Apr 1996 | Mar 2026 | Nuclear |
| West County Energy Center | Loxahatchee, Florida | 18 TWh | Jul 2009 | Mar 2026 | Natural Gas |