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 2024 | - | ||
| Sierra Bess LLC | Houston, TX | - | - | - | Sep 2025 | $394.30 | ||
| Sierra Estrella Energy Storage, LLC | The Woodlands, TX | Independent Power Producer | 1 | -43.6 GWh | Mar 2026 | Oct 2025 | $10.97M | |
| Sierra Nevada Brewing Co | Chico, CA | Industrial | 1 | 10.4 GWh | Dec 2024 | - | ||
| Sierra Pacific Industries | Anderson, CA | Commercial | 11 | 913.6 GWh | Dec 2024 | - | ||
| Sierra Pacific Power Co | Reno, NV | Investor-Owned Utility | 14 | 6.2 TWh | Mar 2026 | Oct 2025 | $5.93M | $30.30M |
| Sierra Solar Greenworks LLC | Louisville, CO | - | - | - | Sep 2025 | $1.26M | ||
| Siete Solar LLC | New York, NY | Independent Power Producer | 1 | 43.0 GWh | Dec 2024 | - | ||
| Signal Hill Petroleum, Inc | Signal Hill, CA | Industrial | 1 | 42.2 GWh | Mar 2026 | - | ||
| Signal Street Operating, LLC | Westport, CT | Independent Power Producer | 1 | 3.0 GWh | Dec 2024 | - | ||
| Sigurd Solar LLC | New York, NY | Independent Power Producer | 1 | 222.1 GWh | Mar 2026 | Sep 2025 | $1.73M | |
| Sikorsky Aircraft Corporation | Stratford, CT | Industrial | 1 | 58.5 GWh | Dec 2024 | - | ||
| Siler City Solar 2, LLC | Scottsdale, AZ | Independent Power Producer | 1 | 10.0 GWh | Dec 2024 | - | ||
| Silicon Valley Clean Water | Redwood City, CA | Municipally-Owned Utility | 1 | 7.5 GWh | Dec 2024 | - | ||
| Silveira Ranch Road Solar | San Francisco, CA | Independent Power Producer | 1 | 4.1 GWh | Dec 2024 | - | ||
| Silver Peak Energy, LLC | Louisville, CO | - | - | - | Sep 2025 | $1.26M | ||
| Silver Peak Solar, LLC | Irvine, CA | Independent Power Producer | 1 | -33.7 GWh | Mar 2026 | Sep 2025 | $969.61k | |
| Silver Sage Windpower, LLC | Charlotte, NC | - | - | - | Sep 2025 | $1.61M | ||
| Silver Star I Power Partners LLC | Independent Power Producer | 1 | 219.7 GWh | Dec 2024 | - | |||
| Silver State Solar Power North, LLC | Primm, NV | Independent Power Producer | 1 | 122.9 GWh | Mar 2026 | Sep 2025 | $4.90M | |
| Silver State Solar Power South, LLC | Juno Beach, FL | Independent Power Producer | 1 | 728.3 GWh | Mar 2026 | Sep 2025 | $27.93M | |
| Silver State South Storage, LLC | Primm, NV | Independent Power Producer | 1 | -43.6 GWh | Mar 2026 | Sep 2025 | $5.14M | |
| Silverstrand Grid, LLC | Burlingame, CA | Independent Power Producer | 1 | -2.1 GWh | Dec 2024 | Sep 2025 | $171.02k | |
| Silverstreet Hydro | Westfield, MA | Independent Power Producer | 2 | 4.8 GWh | Dec 2024 | - | ||
| Simcoe Solar | Scottsdale, AZ | Independent Power Producer | 1 | 51.6 GWh | Mar 2026 | - | ||
| Simon Solar Farm, LLC | Nashville, TN | Independent Power Producer | 1 | 50.4 GWh | Dec 2024 | Sep 2025 | $1.73M | |
| Simplot Leasing Corp | Boise, ID | Industrial | 1 | 73.2 GWh | Mar 2026 | - | ||
| Simplot Phosphates LLC | Rock Springs, WY | Industrial | 1 | 107.9 GWh | Mar 2026 | - | ||
| Siskiyou Power Authority | Yreka, CA | Municipally-Owned Utility | 1 | 23.5 GWh | Dec 2024 | - | ||
| Sit Renewables, Inc. | Irvine, CA | Commercial | 2 | 5.3 GWh | Dec 2024 | - | ||
| Sithe/Independence LLC | Irving, TX | Independent Power Producer | 1 | 7.0 TWh | Mar 2026 | Oct 2025 | $38.34M | |
| SJA Solar, LLC | Princeton, NJ | Independent Power Producer | 1 | 33.9 GWh | Dec 2024 | - | ||
| SJRR | Houston, TX | Independent Power Producer | 1 | 150.8 GWh | Dec 2024 | - | ||
| Skeleton Creek Energy Center | Juno Beach, FL | Independent Power Producer | 1 | 1.2 TWh | Mar 2026 | Sep 2025 | ||
| Skeleton Creek Wind, LLC | Juno Beach, FL | - | - | - | Sep 2025 | $1.99M | ||
| Skipjack Solar Center, LLC | Salt Lake City, UT | Independent Power Producer | - | - | - | Oct 2025 | $5.48M | |
| Skookumchuck Wind Energy Project, LLC | Birmingham, AL | - | - | - | Sep 2025 | $3.29M | ||
| Sky Global Power One Pledgor, LLC | Houston, TX | Independent Power Producer | 1 | 85.9 GWh | Dec 2024 | - | ||
| Sky Ranch Solar And Storage | Juno Beach, FL | Independent Power Producer | 1 | 540.9 GWh | Mar 2026 | - | ||
| Sky Ranch Solar, LLC | Juno Beach, FL | - | - | - | Sep 2025 | $4.66M | ||
| Sky River Wind LLC | Juno Beach, FL | Independent Power Producer | 1 | 261.7 GWh | Dec 2024 | Sep 2025 | $2.61M | |
| Sky Volt, LLC | Greenfield, IA | Independent Power Producer | 1 | 5.6 GWh | Dec 2024 | - | ||
| Skyhigh 2 Solar | Charlotte, NC | Independent Power Producer | 16 | 82.9 GWh | Dec 2024 | - | ||
| Skysol Holdco LLC | Irvine, CA | Independent Power Producer | 1 | 128.0 GWh | Mar 2026 | - | ||
| Skysol, LLC | Irvine, CA | - | - | - | Sep 2025 | $1.78M | ||
| SL Babylon, LLC | New York, NY | Independent Power Producer | 1 | 14.0 GWh | Dec 2024 | - | ||
| SL Sherman, LLC | Houston, TX | Independent Power Producer | 1 | 1.5 GWh | Dec 2024 | - | ||
| Slate Creek Wind Project, LLC | Phoenix, AZ | - | - | - | Oct 2025 | $2.71M | ||
| Slate Hill Solar LLC | San Francisco, CA | Independent Power Producer | 1 | 3.9 GWh | Dec 2024 | - | ||
| Sleeping Bear, LLC | Houston, TX | - | - | - | Sep 2025 | $598.66k | ||
| Sloughhouse Solar, LLC | New York, NY | Independent Power Producer | 1 | 72.3 GWh | Mar 2026 | Sep 2025 | ||
| Small Mouth Bass Solar Partners LLC | Overland Park, KS | Independent Power Producer | 1 | 3.8 GWh | Dec 2024 | - | ||
| Smartenergy Holdings, LLC | New York, NY | - | - | - | Oct 2025 | $2.34M | $14.41M | |
| Smeco Solar LLC | Hughesville, MD | Cooperative | 1 | 7.6 GWh | Dec 2024 | - | ||
| Smith Creek Hydro, LLC | Bellingham, WA | Independent Power Producer | 1 | - | Nov 2024 | Jul 2025 | $2.57M | |
| Smithfield Packaged Meats Corp (Wilson) | Kinston, NC | Industrial | 2 | 1.7 GWh | Dec 2024 | - | ||
| Smoky Hills Wind Farm I LLC | Andover, MA | Independent Power Producer | 1 | 275.8 GWh | Dec 2024 | - | ||
| Smoky Hills Wind Farm, LLC | Andover, MA | - | - | - | Oct 2025 | $1.91M | ||
| Smoky Hills Wind Project II LLC | Andover, MA | Independent Power Producer | 1 | 455.6 GWh | Dec 2024 | Oct 2025 | $2.85M | |
| Snider Industries Inc | Marshall, TX | Industrial | 1 | 13.5 GWh | Dec 2024 | - | ||
| Snow Mountain Hydro LLC | Independent Power Producer | 4 | 35.9 GWh | Dec 2024 | - | |||
| Snowbird Corporation | Snowbird, UT | Independent Power Producer | 1 | 16.0 GWh | Dec 2024 | - | ||
| Snowden River Parkway, LLC | Arlington, VA | Independent Power Producer | 1 | 3.3 GWh | Dec 2024 | - | ||
| Soboba Band Of Luiseno Indians | San Jacinto, CA | Independent Power Producer | 1 | 3.6 GWh | Dec 2024 | - | ||
| Socivolta Inc. | Montreal, QC | - | - | - | Oct 2025 | $19.12M | ||
| Socore Clovis 1 LLC | Chicago, IL | Independent Power Producer | 1 | 4.6 GWh | Dec 2024 | - | ||
| Socore Energy LLC | Chicago, IL | Independent Power Producer | 78 | 234.5 GWh | Mar 2026 | - | ||
| Sol Madison Solar, LLC | Louisville, CO | - | - | - | Oct 2025 | $2.09M | ||
| Sol Me Augusta 13 York Farm, LLC | Houston, TX | Independent Power Producer | 1 | 1.3 GWh | Dec 2024 | - | ||
| Sol Orchard Imperial 1, LLC | Wilmington, DE | Independent Power Producer | 1 | 49.4 GWh | Dec 2024 | - | ||
| Sol Systems | Washington, DC | Independent Power Producer | 30 | 715.6 GWh | Mar 2026 | - | ||
| Solaireholman 1, LLC | San Francisco, CA | Independent Power Producer | 1 | 110.2 GWh | Mar 2026 | - | ||
| Solamerica Energy LLC | Independent Power Producer | 6 | 6.0 GWh | Dec 2024 | - | |||
| Solano County | Fairfield, CA | Municipally-Owned Utility | 1 | 8.6 GWh | Dec 2024 | - | ||
| Solano Irrigation District | Vacaville, CA | Political Subdivision | 1 | 37.3 GWh | Dec 2024 | - | ||
| Solar Alpine LLC | Houston, TX | - | - | - | Sep 2025 | $4.08M | ||
| Solar AVRA Valley LLC | Scottsdale, AZ | Independent Power Producer | 1 | 65.7 GWh | Dec 2024 | Sep 2025 | $2.47M | |
| Solar Blythe LLC | Houston, TX | - | - | - | Sep 2025 | $1.14M | ||
| Solar Borrego I LLC | Houston, TX | - | - | - | Sep 2025 | $2.60M | ||
| Solar Breakers LLC | Juno Beach, FL | Independent Power Producer | 2 | 12.1 GWh | Dec 2024 | - | ||
| Solar Community I LLC | Scottsdale, AZ | Independent Power Producer | 1 | 14.6 GWh | Dec 2024 | - | ||
| Solar DG Ca Long Beach, LLC | Baltimore, MD | Independent Power Producer | 1 | 2.8 GWh | Dec 2024 | - | ||
| Solar DG Il 2, LLC | New York, NY | Independent Power Producer | 1 | 2.8 GWh | Dec 2024 | - | ||
| Solar DG Il 3 LLC | New York, NY | Independent Power Producer | 1 | 1.3 GWh | Dec 2024 | - | ||
| Solar DG Il 4, LLC | New York, NY | Independent Power Producer | 1 | 2.9 GWh | Dec 2024 | - | ||
| Solar DG Il 5, LLC | New York, NY | Independent Power Producer | 1 | 2.1 GWh | Dec 2024 | - | ||
| Solar DG MD Holabird Ajcfb, LLC | New York, NY | Independent Power Producer | 2 | 4.4 GWh | Dec 2024 | - | ||
| Solar DG MD Holabird Broening ACC, LLC | New York, NY | Independent Power Producer | 2 | 5.0 GWh | Dec 2024 | - | ||
| Solar DG NJ BEMS West, LLC | Baltimore, MD | Independent Power Producer | 1 | 3.8 GWh | Dec 2024 | - | ||
| Solar DG NJ Brookdale, LLC | New York, NY | Independent Power Producer | 1 | 4.8 GWh | Dec 2024 | - | ||
| Solar DG Ny Sunnyside 1, LLC | Baltimore, MD | Independent Power Producer | 1 | 8.1 GWh | Dec 2024 | - | ||
| Solar DG Ny Sunnyside 2, LLC | Baltimore, MD | Independent Power Producer | 1 | 8.2 GWh | Dec 2024 | - | ||
| Solar Lee, LLC | Calgary, AB | Independent Power Producer | 1 | 6.4 GWh | Dec 2024 | - | ||
| Solar Mule, LLC | Scottsdale, AZ | Independent Power Producer | 1 | 2.2 GWh | Dec 2024 | - | ||
| Solar Oasis LLC | Independent Power Producer | 1 | 53.6 GWh | Dec 2024 | - | |||
| Solar Of Alamosa LLC | Miami Beach, FL | Independent Power Producer | 1 | - | Dec 2023 | Sep 2025 | $740.57k | |
| Solar Partners I, LLC | Princeton, NJ | - | - | - | Sep 2025 | $13.78M | ||
| Solar Partners II, LLC | Princeton, NJ | - | - | - | Sep 2025 | $11.32M | ||
| Solar Partners VIII, LLC | Princeton, NJ | - | - | - | Sep 2025 | $13.84M | ||
| Solar Partners XI, LLC | Birmingham, AL | - | - | - | Sep 2025 | $26.21M |
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 |