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 |
|---|---|---|---|---|---|---|---|---|
| Orchard Ranch Solar, LLC | Miami, FL | Independent Power Producer | 1 | 52.1 GWh | Jun 2026 | - | ||
| Orchard Windfarm, LLC | New York, NY | Independent Power Producer | 4 | 78.4 GWh | Dec 2025 | - | ||
| Oregon Clean Energy Center | Oregon, OH | Independent Power Producer | 1 | 6.3 TWh | Jun 2026 | Oct 2025 | $58.02M | |
| Oregon Environmental Industries LLC | Medford, OR | Independent Power Producer | 1 | 18.0 GWh | Dec 2025 | - | ||
| Oregon State University | Corvallis, OR | State-Owned Utility | 1 | 36.2 GWh | Jun 2026 | - | ||
| Organic Energy Solutions, Inc. | San Bernardino, CA | Independent Power Producer | 1 | 4.9 GWh | Dec 2024 | - | ||
| Oriana Solar LLC | Boston, MA | Independent Power Producer | 1 | 315.7 GWh | Jun 2026 | - | ||
| Origin Wind Energy LLC | Hennepin, OK | Independent Power Producer | 1 | 295.7 GWh | Dec 2025 | Sep 2025 | $3.17M | |
| Origis Energy USA, Inc | Miami, FL | Independent Power Producer | 21 | 2.0 TWh | Jun 2026 | - | ||
| Orion Community Solar | Scottsdale, AZ | Independent Power Producer | 1 | 4.6 GWh | Dec 2025 | - | ||
| Orion Energy Group LLC | Oakland, CA | Commercial | 2 | 835.3 GWh | Dec 2025 | - | ||
| Orion Engineered Carbons | Spring, TX | Industrial | 3 | 115.2 GWh | Dec 2025 | - | ||
| Orion Solar I LLC | Independent Power Producer | 1 | 28.7 GWh | Dec 2025 | - | |||
| Orion Solar II, LLC | Boston, MA | Independent Power Producer | 1 | 16.8 GWh | Dec 2025 | - | ||
| Orlando Utilities COMM | Orlando, FL | Municipally-Owned Utility | 5 | 5.9 TWh | Jun 2026 | Sep 2025 | $19.92M | |
| Ormat Cove Fort LLC | Reno, NV | Independent Power Producer | 2 | 148.6 GWh | Dec 2025 | Sep 2025 | $3.25M | |
| Ormat Dixie Valley LLC | Reno, NV | - | - | - | Sep 2025 | $9.81M | ||
| Ormat Nevada Inc. | Reno, NV | Independent Power Producer | 28 | 3.4 TWh | Jun 2026 | - | ||
| Ormat Salt Wells LLC | Reno, NV | Independent Power Producer | 1 | 71.9 GWh | Dec 2025 | - | ||
| Ormat Stillwater LLC | Reno, NV | Independent Power Producer | 1 | 101.3 GWh | Dec 2025 | Sep 2025 | $944.67k | |
| Ormat Stillwater Solar PV II, LLC | Reno, NV | Independent Power Producer | 1 | 1.9 GWh | Jun 2025 | Jun 2025 | $188.84k | |
| Ormesa LLC | Reno, NV | - | - | - | Sep 2025 | $5.91M | ||
| Ormond Beach Power, LLC | Houston, TX | Independent Power Producer | 1 | 4.9 GWh | May 2026 | Sep 2025 | $40.40M | |
| ORNI 14 LLC | Reno, NV | - | - | - | Jun 2025 | $1.25M | ||
| ORNI 18 LLC | Reno, NV | - | - | - | Jun 2025 | $132.53k | ||
| ORNI 30 LLC | Reno, NV | Independent Power Producer | 1 | 50.2 GWh | Jun 2026 | - | ||
| ORNI 34 LLC | Philadelphia, PA | - | - | - | Oct 2025 | $150.53k | ||
| ORNI 36 LLC | Reno, NV | - | - | - | Sep 2025 | $2.80M | ||
| ORNI 37 LLC | Luring, NV | Independent Power Producer | 1 | 99.1 GWh | Dec 2025 | Sep 2025 | $1.67M | |
| ORNI 39 LLC | Reno, NV | - | - | - | Sep 2025 | $12.24M | ||
| ORNI 41 LLC | Reno, NV | - | - | - | Sep 2025 | $6.54M | ||
| ORNI 43 LLC | Reno, NV | - | - | - | Sep 2025 | $3.96M | ||
| ORNI 47, LLC | Luning, NV | Independent Power Producer | 1 | 108.7 GWh | Dec 2025 | Sep 2025 | $2.32M | |
| ORNI 50 LLC | Reno, NV | - | - | - | Sep 2025 | $3.83M | ||
| Orrtanna Power, LLC | Chicago, IL | Independent Power Producer | 1 | 408.0 MWh | Dec 2025 | Oct 2025 | $220.70k | |
| Orsted Onshore North America | Austin, TX | Independent Power Producer | 1 | 1.2 TWh | Jun 2026 | - | ||
| Orsted Wind Power North America LLC | Boston, MA | Independent Power Producer | 3 | 548.9 GWh | Jun 2026 | - | ||
| Ortega Grid, LLC | Chicago, IL | Independent Power Producer | 1 | - | - | Sep 2025 | $20.82k | |
| Osage Wind, LLC | St. Louis, MO | Independent Power Producer | - | - | - | Jun 2025 | $3.91M | |
| Osborn Wind Energy LLC | Juno Beach, FL | Independent Power Producer | 1 | 740.5 GWh | Jun 2026 | Sep 2025 | $5.23M | |
| Osceola Windpower LLC | Juno Beach, FL | Independent Power Producer | 2 | 616.6 GWh | Jun 2026 | Jun 2019 | ||
| OSLH, LLC | Portland, OR | Independent Power Producer | - | 22.8 GWh | Dec 2024 | - | ||
| Oswego, City Of - (Ny) | Oswego, NY | Municipally-Owned Utility | 1 | 22.2 GWh | Dec 2025 | - | ||
| Oswego County - (Ny) | Oswego, NY | Municipally-Owned Utility | 1 | 6.3 GWh | Dec 2025 | - | ||
| Oswego Harbor Power | Oswego, NY | Independent Power Producer | 1 | 139.1 GWh | Jun 2026 | Sep 2025 | $29.55M | |
| OTAY Mesa Energy Center LLC | Dublin, CA | Independent Power Producer | 1 | 1.3 TWh | Jun 2026 | Oct 2025 | $16.15M | |
| OTIS Elevator Company | Florence, SC | Industrial | 1 | 1.8 GWh | Dec 2025 | - | ||
| Otsego Paper Inc | Otsego, MI | Industrial | 1 | 175.0 GWh | Dec 2025 | - | ||
| Ottawa Wind 24, LLC | Findlay, OH | Industrial | 1 | 2.3 GWh | Dec 2024 | - | ||
| Otter Creek Ethanol LLC - Poet Ashton | Ashton, IA | Industrial | 1 | 48.4 GWh | Jun 2026 | - | ||
| Otter Creek Wind Farm LLC | Portland, OR | - | - | - | Sep 2025 | $3.22M | ||
| Otter River Road Solar LLC | Framingham, MA | Independent Power Producer | 1 | 4.0 GWh | Dec 2025 | - | ||
| Otter Tail Power Co | Fergus Falls, MN | Investor-Owned Utility | 21 | 6.5 TWh | Jun 2026 | Oct 2025 | $30.22M | $869.20k |
| Outback Solar, LLC | New York, NY | Independent Power Producer | 1 | 9.0 GWh | Dec 2025 | - | ||
| Overlook Solar Partners, LLC | New York, NY | Independent Power Producer | 1 | 8.5 GWh | Dec 2025 | - | ||
| Overman Solar, LLC | Asheville, NC | Independent Power Producer | - | 11.2 GWh | Dec 2024 | - | ||
| OWEN Solar LLC | Menlo Park, CA | Independent Power Producer | 1 | 7.4 GWh | Dec 2025 | - | ||
| Owlville Creek Solar 2, LLC | Boston, MA | Independent Power Producer | 1 | 8.0 GWh | Dec 2024 | - | ||
| Owlville Creek Solar, LLC | Boston, MA | Independent Power Producer | 1 | 8.6 GWh | Dec 2025 | - | ||
| Oxbow Creek Energy LLC | Omaha, NE | Independent Power Producer | 1 | 44.2 GWh | Dec 2025 | Oct 2025 | $1.09M | |
| Oxbow Solar Farm 1, LLC | San Francisco, CA | - | - | - | Jun 2025 | $6.18M | ||
| OXON Run Community Renewable Energy Facility | Washington, DC | State-Owned Utility | 1 | 1.1 GWh | Dec 2025 | - | ||
| Oxy Renewable Energy LLC | Houston, TX | Industrial | 1 | 41.3 GWh | Dec 2025 | - | ||
| Oxy VInyls LP | Houston, TX | Industrial | 2 | 1.8 TWh | Jun 2026 | - | ||
| OYA 2643 Moore Road LLC | Juno Beach, FL | Independent Power Producer | 1 | 6.1 GWh | Dec 2025 | - | ||
| OYA Blanchard Road 2 LLC | Juno Beach, FL | Independent Power Producer | 1 | 7.7 GWh | Dec 2025 | - | ||
| OYA Blanchard Road LLC | Juno Beach, FL | Independent Power Producer | 1 | 7.2 GWh | Dec 2025 | - | ||
| OYA Church Road A LLC | Toronto, ON | Independent Power Producer | 1 | 8.9 GWh | Dec 2025 | - | ||
| OYA Great Lakes Seaway LLC | Juno Beach, FL | Independent Power Producer | 1 | 5.4 GWh | Dec 2025 | - | ||
| OYA Main Street LLC | Toronto, ON | Independent Power Producer | 1 | 6.9 GWh | Dec 2025 | - | ||
| OYA NYS RTE 12 LLC | Juno Beach, FL | Independent Power Producer | 1 | 7.0 GWh | Dec 2025 | - | ||
| Ozark Hydro Management, LLC | Locust Grove, AR | Independent Power Producer | 3 | 57.0 GWh | Jun 2026 | - | ||
| Ozarks Electric Coop Corp - (Ar) | Fayetteville, AR | Cooperative | 1 | 2.2 GWh | Dec 2025 | - | ||
| P66 Rodeo Solar | Rodeo, CA | Independent Power Producer | 1 | 63.6 GWh | Jun 2026 | - | ||
| Pac Aviation | Van NUYS, CA | Independent Power Producer | 1 | 3.0 GWh | Dec 2025 | - | ||
| Pacific Crest Power, LLC | New York, NY | - | - | - | Oct 2025 | $1.57M | ||
| Pacific Energy Solutions, LLC | Juno Beach, FL | Independent Power Producer | 1 | 17.1 GWh | Dec 2025 | - | ||
| Pacific Gas & Electric Co. | San Francisco, CA | Investor-Owned Utility | 88 | 34.4 TWh | Jun 2026 | Oct 2025 | $402.73M | $664.61M |
| Pacific Northwest Generating Coop | Clackamas, OR | Cooperative | 1 | 47.1 GWh | Dec 2025 | Sep 2025 | $58.29M | $1.52M |
| Pacific Wind Lessee, LLC | Phoenix, AZ | - | - | - | Oct 2025 | $11.90M | ||
| Pacifico Power | San Juan Capistrano, CA | Independent Power Producer | 2 | 250.0 MWh | Dec 2024 | - | ||
| Pacificorp | Portland, OR | Investor-Owned Utility | 85 | 53.8 TWh | Jun 2026 | Oct 2025 | $81.18M | $2.41B |
| Packaging Corp Of America | Counce, TN | Independent Power Producer | 1 | 465.3 GWh | Jun 2026 | - | ||
| Packaging Corporation Of America | Lake Forest, IL | Industrial | 1 | 439.8 GWh | Dec 2025 | - | ||
| Paducah Power System | Paducah, KY | Municipally-Owned Utility | 1 | 158.0 GWh | Dec 2025 | - | ||
| Page Solar Farm, LLC | Charlotte, NC | Independent Power Producer | - | 2.6 GWh | Dec 2024 | - | ||
| Painted Hills Wind Holdings, LLC | San Diego, CA | Independent Power Producer | - | - | Dec 2021 | Jul 2025 | $2.53M | |
| Palm Springs, City Of - (Ca) | Palm Springs, CA | Municipally-Owned Utility | 1 | 8.1 GWh | Jun 2026 | - | ||
| Palm Springs USD | Palm Springs, CA | Commercial | 1 | 1.3 GWh | Dec 2025 | - | ||
| Palmco Power DC, LLC | Brooklyn, NY | - | - | - | Oct 2025 | $22.25k | ||
| Palmco Power De, LLC | Brooklyn, NY | - | - | - | Oct 2025 | $9.67k | ||
| Palmco Power Il, LLC | Brooklyn, NY | - | - | - | Sep 2025 | $41.25k | ||
| Palmco Power Ma, LLC | Brooklyn, NY | - | - | - | Jun 2025 | $19.26k | ||
| Palmco Power MD, LLC | Brooklyn, NY | - | - | - | Oct 2025 | $34.28k | ||
| Palmco Power NJ, LLC | Brooklyn, NY | - | - | - | Oct 2025 | $55.88k | ||
| Palmco Power Pa, LLC | Brooklyn, NY | - | - | - | Oct 2025 | $41.25k | ||
| Palmer Community Solar LLC | Schenectady, NY | Independent Power Producer | 1 | 1.9 GWh | Dec 2025 | - | ||
| Palmer Hydroelectric | Corinth, NY | Independent Power Producer | 1 | 308.3 GWh | Dec 2025 | - | ||
| Palmer's Creek Wind Farm, LLC | Granite Falls, MN | Independent Power Producer | 1 | 140.0 GWh | Jun 2026 | Sep 2025 | $715.05k | |
| Palmer Solar LLC | New City, NY | Commercial|Independent Power Producer | 1 | - | Dec 2022 | Sep 2025 | $1.25M |
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 | Jun 2026 | Nuclear |
| Barry | Bucks, Alabama | 13 TWh | Jan 1954 | Jun 2026 | Natural Gas : 97.3% Bituminous Coal : 2.7% |
| Beaver Valley | Shippingport, Pennsylvania | 15 TWh | Aug 1976 | Jun 2026 | Nuclear |
| Bowen | Cartersville, Georgia | 13 TWh | Sep 1971 | Jun 2026 | Bituminous Coal : 99.8% |
| Braidwood Generation Station | Braceville, Illinois | 20 TWh | Jun 1988 | Jun 2026 | Nuclear |
| Browns Ferry | Decatur, Alabama | 31 TWh | Jul 1974 | Jun 2026 | Nuclear |
| Brunswick Nuclear | Southport, North Carolina | 15 TWh | Oct 1975 | Jun 2026 | Nuclear |
| Byron Generating Station | Byron, Illinois | 20 TWh | Aug 1985 | Jun 2026 | Nuclear |
| Calvert Cliffs Nuclear Power Plant | Lusby, Maryland | 15 TWh | Apr 1975 | Jun 2026 | Nuclear |
| Catawba | York, South Carolina | 18 TWh | May 1985 | Jun 2026 | Nuclear |
| Comanche Peak | Glen Rose, Texas | 20 TWh | Jul 1990 | Jun 2026 | Nuclear |
| Crystal River | Crystal River, Florida | 16 TWh | Sep 1966 | Jun 2026 | Natural Gas : 69.8% Bituminous Coal : 30.0% |
| Diablo Canyon | Avila Beach, California | 18 TWh | Apr 1985 | Jun 2026 | Nuclear |
| Donald C Cook | Bridgman, Michigan | 19 TWh | Jul 1975 | Jun 2026 | Nuclear |
| Dresden Generating Station | Morris, Illinois | 15 TWh | Jul 1970 | Jun 2026 | Nuclear |
| Edwin I Hatch | Baxley, Georgia | 14 TWh | Nov 1975 | Jun 2026 | Nuclear |
| Gavin Power, LLC | Cheshire, Ohio | 13 TWh | Sep 1974 | Jun 2026 | Bituminous Coal : 99.6% |
| Grand Coulee | Grand Coulee, Washington | 19 TWh | Feb 1941 | Jun 2026 | Water |
| Guernsey Power Station | Byesville, Ohio | 12 TWh | Jan 2023 | Jun 2026 | Natural Gas |
| H Allen Franklin Combined Cycle | Smiths, Alabama | 12 TWh | May 2002 | Jun 2026 | Natural Gas |
| Jack McDonough | Smyrna, Georgia | 19 TWh | Apr 1971 | Jun 2026 | Natural Gas |
| James H Miller Jr | Quinton, Alabama | 19 TWh | Sep 1978 | Jun 2026 | Subbituminous Coal : 99.0% Natural Gas : 1.0% |
| Joseph M Farley | Columbia, Alabama | 15 TWh | Nov 1977 | Jun 2026 | Nuclear |
| Labadie | Labadie, Missouri | 15 TWh | May 1970 | Jun 2026 | Subbituminous Coal : 99.9% |
| LaSalle Generating Station | Marseilles, Illinois | 18 TWh | Dec 1983 | Jun 2026 | Nuclear |
| Limerick | Sanatoga, Pennsylvania | 19 TWh | Jan 1986 | Jun 2026 | Nuclear |
| McGuire | Huntersville, North Carolina | 19 TWh | Aug 1981 | Jun 2026 | Nuclear |
| Millstone | Waterford, Connecticut | 17 TWh | Nov 1975 | Jun 2026 | Nuclear |
| Monroe (MI) | Monroe, Michigan | 15 TWh | Oct 1969 | Jun 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 | Jun 2026 | Nuclear |
| North Anna | Mineral, Virginia | 16 TWh | May 1978 | Jun 2026 | Nuclear |
| Oak Grove (TX) | Franklin, Texas | 12 TWh | Mar 2010 | Jun 2026 | Lignite Coal : 99.2% Natural Gas : 0.8% |
| Oconee | Seneca, South Carolina | 22 TWh | Jun 1973 | Jun 2026 | Nuclear |
| Palo Verde | Wintersburg, Arizona | 31 TWh | Dec 1985 | Jun 2026 | Nuclear |
| Peach Bottom | Delta, Pennsylvania | 22 TWh | Jun 1974 | Jun 2026 | Nuclear |
| Prairie State Generating Station | Marissa, Illinois | 12 TWh | May 2012 | Jun 2026 | Bituminous Coal : 99.8% |
| PSEG Salem Generating Station | Hancocks Bridge, New Jersey | 19 TWh | May 1971 | Jun 2026 | Nuclear |
| Quad Cities Generating Station | Cordova, Illinois | 15 TWh | Nov 1972 | Jun 2026 | Nuclear |
| Robert Moses Niagara | Lewiston, New York | 14 TWh | Dec 1960 | Jun 2026 | Water |
| Sequoyah | Soddy Daisy, Tennessee | 18 TWh | Jun 1981 | Jun 2026 | Nuclear |
| South Texas Project | Wadsworth, Texas | 20 TWh | Jul 1988 | Jun 2026 | Nuclear |
| St Lucie | Jensen Beach, Florida | 15 TWh | Apr 1976 | Jun 2026 | Nuclear |
| Surry | Surry, Virginia | 12 TWh | Nov 1972 | Jun 2026 | Nuclear |
| TalenEnergy Susquehanna | Berwick, Pennsylvania | 20 TWh | May 1983 | Jun 2026 | Nuclear |
| Turkey Point | Homestead, Florida | 20 TWh | Mar 1967 | Jun 2026 | Nuclear : 64.6% Natural Gas : 35.4% |
| Union Power Station | El Dorado, Arkansas | 13 TWh | Dec 2002 | Jun 2026 | Natural Gas |
| Vogtle | Waynesboro, Georgia | 37 TWh | Apr 1987 | Jun 2026 | Nuclear |
| W A Parish | Thompsons, Texas | 14 TWh | May 1958 | Jun 2026 | Subbituminous Coal : 81.2% Natural Gas : 18.8% |
| Watts Bar Nuclear Plant | Spring City, Tennessee | 20 TWh | Apr 1996 | Jun 2026 | Nuclear |
| West County Energy Center | Loxahatchee, Florida | 18 TWh | Jul 2009 | Jun 2026 | Natural Gas |