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 |
|---|---|---|---|---|---|---|---|---|
| Southwick Solar, LLC | Asheville, NC | Independent Power Producer | - | 6.1 GWh | Dec 2024 | - | ||
| Sowega Power LLC | Baconton, GA | Cooperative | 2 | 29.3 GWh | Dec 2025 | - | ||
| SP Butler Solar, LLC | Birmingham, AL | - | - | - | Sep 2025 | $3.95M | ||
| SP Cimarron I, LLC | Birmingham, AL | - | - | - | Sep 2025 | $2.27M | ||
| SP Decatur Parkway Solar, LLC | Birmingham, AL | - | - | - | Sep 2025 | $3.54M | ||
| SP Pawpaw Solar, LLC | Birmingham, AL | - | - | - | Sep 2025 | $1.15M | ||
| SP Sandhills Solar, LLC | Birmingham, AL | - | - | - | Sep 2025 | $5.32M | ||
| SP Solar 5, LLC | Charlotte, NC | Independent Power Producer | - | 3.9 GWh | Dec 2024 | - | ||
| Spanish Fork Wind Park 2, LLC | Scottsdale, AZ | Independent Power Producer | 1 | 43.1 GWh | Apr 2026 | - | ||
| Spanish Peaks Solar LLC | Boulder, CO | Independent Power Producer | 1 | 391.5 GWh | May 2026 | Sep 2025 | $2.23M | |
| Spark Energy, LLC | Houston, TX | - | - | - | Oct 2025 | $70.59k | ||
| Sparta Energy, Inc | Birmingham, AL | - | - | - | Sep 2025 | $803.52k | ||
| Sparta Solar, LLC | Austin, TX | Independent Power Producer | 1 | 525.4 GWh | May 2026 | - | ||
| Spartacus Energy Services, LLC | Birmingham, AL | - | - | - | Oct 2025 | $165.02k | $166.38k | |
| Spartan Renewable Energy, Inc. | Cadillac, MI | - | - | - | Sep 2025 | $132.65k | $1.56M | |
| Spartanburg Commissioners PW | Spartanburg, SC | Municipally-Owned Utility | 1 | 863.0 MWh | May 2026 | - | ||
| Spearville 3, LLC | Phoenix, AZ | - | - | - | Oct 2025 | $1.41M | ||
| Spectrum Nevada Solar, LLC | Birmingham, AL | - | - | - | Sep 2025 | $3.30M | ||
| Spectrum Solar LLC | Independent Power Producer | 1 | 11.3 GWh | Dec 2025 | - | |||
| Speedway Solar, LLC | New York, NY | Independent Power Producer | 1 | 379.1 GWh | May 2026 | Sep 2025 | ||
| SPG Il Brush Creek I Solar LLC | San Francisco, CA | Independent Power Producer | 1 | 4.1 GWh | Dec 2025 | - | ||
| SPG Il Hurricane Creek Solar LLC | San Francisco, CA | Independent Power Producer | 1 | 4.4 GWh | Dec 2025 | - | ||
| Spica Community Solar | Scottsdale, AZ | Independent Power Producer | 1 | 3.5 GWh | Dec 2025 | - | ||
| Spinning Spur Wind LLC | Phoenix, AZ | - | - | - | Oct 2025 | $3.89M | ||
| Spotlight Power LLC | Houston, TX | - | - | - | Oct 2025 | $10.00M | $8.91M | |
| SPPW1, LLC | Omaha, NE | Independent Power Producer | 1 | 26.5 GWh | Dec 2025 | - | ||
| Sprague Hydro LLC | Ivins, UT | Independent Power Producer | 1 | 1.1 GWh | Dec 2025 | - | ||
| Spreckels Sugar Company | Brawley, CA | Industrial | 1 | 21.5 GWh | Dec 2024 | - | ||
| Spring Canyon Energy II LLC | Houston, TX | - | - | - | Sep 2025 | $877.79k | ||
| Spring Canyon Energy III LLC | Houston, TX | - | - | - | Sep 2025 | $822.66k | ||
| Spring Canyon Energy LLC | Chicago, IL | - | - | - | Sep 2025 | $1.59M | ||
| Spring Canyon Expansion LLC | Scottsdale, AZ | Independent Power Producer | 1 | 112.6 GWh | Dec 2025 | - | ||
| Spring Energy RRH, LLC | Brooklyn, NY | - | - | - | Oct 2025 | $241.97k | $189.89k | |
| Spring Hope Solar 2, LLC | El Segundo, CA | Independent Power Producer | 1 | 9.9 GWh | Dec 2025 | - | ||
| Spring Hope Solar 3, LLC | Asheville, NC | Independent Power Producer | - | 5.8 GWh | Dec 2024 | - | ||
| Spring Street Solar 1, LLC | Princeton, NJ | Independent Power Producer | 1 | 3.7 GWh | Dec 2024 | - | ||
| Spring Valley Pub Utils COMM | Spring Valley, MN | Municipally-Owned Utility | 1 | 242.7 MWh | Dec 2025 | - | ||
| Spring Valley Wind LLC | Houston, TX | - | - | - | Sep 2025 | $8.89M | ||
| Springdale Energy LLC | Springdale, PA | Independent Power Producer | 2 | 5.0 TWh | May 2026 | Sep 2025 | $45.05M | |
| Springer Electric Coop, Inc | Springer, NM | Cooperative | 1 | 2.3 GWh | Dec 2025 | Sep 2025 | $3.71M | |
| Spruance Operating Services, LLC | Richmond, VA | - | - | - | Oct 2025 | $995.59k | ||
| SPS Atwell Island LLC | Independent Power Producer | 1 | 35.3 GWh | Dec 2025 | - | |||
| SR Ailey, LLC | Nashville, TN | Independent Power Producer | 1 | 202.2 GWh | May 2026 | Sep 2025 | $1.74M | |
| SR Arlington II, LLC | Nashville, TN | - | - | - | Sep 2025 | $1.75M | ||
| SR Arlington II MT, LLC | Nashville, TN | Independent Power Producer | 1 | 245.7 GWh | May 2026 | - | ||
| SR Arlington, LLC | Nashville, TN | Independent Power Producer | 1 | 48.8 GWh | Dec 2025 | Sep 2025 | $421.27k | |
| 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 Blount, LLC | Nashville, TN | Independent Power Producer | 1 | 707.0 MWh | Dec 2025 | - | ||
| SR Bolivar, LLC | Nashville, TN | Independent Power Producer | 1 | 7.0 GWh | Dec 2025 | - | ||
| SR Brownsville, LLC | Nashville, TN | Independent Power Producer | 1 | 1.9 GWh | Dec 2025 | - | ||
| SR Byhalia, LLC | Nashville, TN | Independent Power Producer | 1 | 10.3 GWh | Dec 2025 | - | ||
| SR Camden, LLC | Nashville, TN | Independent Power Producer | 1 | 28.2 GWh | May 2026 | - | ||
| SR Canadaville, LLC | Nashville, TN | Independent Power Producer | 1 | 36.8 GWh | Dec 2025 | Sep 2025 | $298.26k | |
| SR Cedar Springs, LLC | Nashville, TN | Independent Power Producer | 1 | 182.3 GWh | May 2026 | Sep 2025 | $1.29M | |
| SR Christiana, LLC | Nashville, TN | Independent Power Producer | 1 | 2.7 GWh | Dec 2025 | - | ||
| SR Clarksville II, LLC | Nashville, TN | Independent Power Producer | 1 | 10.4 GWh | Dec 2025 | - | ||
| SR Clarksville, LLC | Nashville, TN | Independent Power Producer | 1 | 4.4 GWh | Dec 2025 | - | ||
| SR Clay, LLC | Nashville, TN | Independent Power Producer | 1 | 256.4 GWh | May 2026 | Sep 2025 | $2.19M | |
| SR Clinch, LLC | Nashville, TN | Independent Power Producer | 2 | 18.6 GWh | Dec 2025 | - | ||
| 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 Forked Deer, LLC | Nashville, TN | Independent Power Producer | 1 | 283.0 MWh | Dec 2025 | - | ||
| SR Franklin, LLC | Nashville, TN | Independent Power Producer | 1 | 5.5 GWh | Dec 2025 | - | ||
| SR Greenville I, LLC | Nashville, TN | Independent Power Producer | 1 | 10.6 GWh | Dec 2025 | - | ||
| SR Greenville II, LLC | Nashville, TN | Independent Power Producer | 1 | 10.1 GWh | Dec 2025 | - | ||
| SR Hazlehurst III, LLC | Nashville, TN | Independent Power Producer | 1 | 79.6 GWh | May 2026 | Sep 2025 | $861.87k | |
| SR Hazlehurst, LLC | Nashville, TN | Independent Power Producer | 1 | 32.7 GWh | Dec 2025 | Sep 2025 | $636.71k | |
| SR Houston Holdings, LLC | Nashville, TN | Independent Power Producer | 1 | 1.8 GWh | May 2026 | - | ||
| SR Innovation, LLC | Nashville, TN | Independent Power Producer | 1 | 3.7 GWh | Dec 2025 | - | ||
| SR Jackson II, LLC | Nashville, TN | Independent Power Producer | 1 | 2.3 GWh | Dec 2025 | - | ||
| SR Jenkins, LLC | Nashville, TN | Independent Power Producer | 1 | 32.1 GWh | Dec 2025 | - | ||
| SR Jonesborough II, LLC | Nashville, TN | Independent Power Producer | 1 | 8.2 GWh | May 2026 | - | ||
| SR Kersey II, LLC | Nashville, TN | Independent Power Producer | 1 | 2.1 GWh | Dec 2025 | - | ||
| SR Kersey, LLC | Nashville, TN | Independent Power Producer | 1 | 7.5 GWh | Dec 2025 | - | ||
| 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 Litchfield, LLC | Nashville, TN | Independent Power Producer | 1 | 26.4 GWh | Dec 2025 | Sep 2025 | $420.40k | |
| SR Lumpkin, LLC | Nashville, TN | Independent Power Producer | 1 | 236.1 GWh | May 2026 | Sep 2025 | $1.66M | |
| SR Marion, LLC | Nashville, TN | Independent Power Producer | 1 | 2.7 GWh | Dec 2025 | - | ||
| SR Mavericks, LLC | Nashville, TN | Independent Power Producer | 1 | 15.5 GWh | Dec 2025 | - | ||
| 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 Monroe, LLC | Nashville, TN | Independent Power Producer | 1 | 1.9 GWh | Dec 2025 | - | ||
| SR North Stonington, LLC | Nashville, TN | Independent Power Producer | 1 | 15.6 GWh | Dec 2025 | - | ||
| SR Panola I, LLC | Nashville, TN | Independent Power Producer | 1 | 10.9 GWh | Dec 2025 | - | ||
| SR Panola II, LLC | Nashville, TN | Independent Power Producer | 1 | 6.9 GWh | Dec 2025 | - | ||
| SR Panola III, LLC | Nashville, TN | Independent Power Producer | 1 | 7.6 GWh | Dec 2025 | - | ||
| SR Paris, LLC | Nashville, TN | Independent Power Producer | 1 | 14.4 GWh | Dec 2025 | - | ||
| SR Perry, LLC | Nashville, TN | Independent Power Producer | 1 | 169.1 GWh | May 2026 | Sep 2025 | $1.40M | |
| SR Platte, LLC | Nashville, TN | Independent Power Producer | 1 | 35.5 GWh | Dec 2025 | Sep 2025 | $513.75k | |
| SR Rattlesnake, LLC | Nashville, TN | Independent Power Producer | 1 | 16.1 GWh | Dec 2025 | Sep 2025 | $191.84k | |
| SR Russellville, LLC | Nashville, TN | Independent Power Producer | 1 | 423.5 GWh | May 2026 | - | ||
| SR Skylark B, LLC | Nashville, TN | Independent Power Producer | 1 | 1.4 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 |