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 |
|---|---|---|---|---|---|---|---|---|
| Northern Water Hydropower Enterprise | Berthoud, CO | Political Subdivision | 1 | 5.6 GWh | Aug 2026 | - | ||
| Northstar MACY's Maryland 2015, LLC | Scottsdale, AZ | Independent Power Producer | 1 | 3.6 GWh | Aug 2026 | - | ||
| Northumberland Solar, LLC | Arlington, VA | Independent Power Producer | 1 | 105.5 GWh | Aug 2026 | Sep 2025 | ||
| Northwest Ohio Wind, LLC | Haviland, OH | Independent Power Producer | 1 | 310.2 GWh | Aug 2026 | Oct 2025 | $2.84M | |
| Northwestern Energy LLC - (MT) | Butte, MT | |Investor-Owned Utility | 29 | 3.9 TWh | Aug 2026 | Oct 2025 | $9.24M | $9.28M |
| Nova Power, LLC | Houston, TX | Independent Power Producer | 1 | -146.4 GWh | Aug 2026 | Jul 2025 | $29.54M | |
| Novis Renewables, LLC | Irvington, NY | Independent Power Producer | 23 | 298.9 GWh | Aug 2026 | - | ||
| NRG California Peaker Operations LLC | Carlsbad, CA | Independent Power Producer | 1 | 257.5 GWh | Aug 2026 | - | ||
| NRG Chalk Point CT | Aquasco, MD | Independent Power Producer | 1 | 22.1 GWh | Aug 2026 | Sep 2025 | $1.36M | |
| NRG Energy Gas & Wind Holdings Inc | Princeton, NJ | Independent Power Producer | 2 | 363.1 GWh | Aug 2026 | - | ||
| NRG Energy Services | Nipton, CA | Commercial|Independent Power Producer | 5 | 3.9 TWh | Aug 2026 | - | ||
| NRG Texas Power LLC | Houston, TX | Independent Power Producer | 10 | 28.5 TWh | Aug 2026 | - | ||
| NRG THW GT LLC | Princeton, NJ | Independent Power Producer | 1 | 88.0 GWh | Aug 2026 | - | ||
| Nstar Electric Company | Westwood, MA | Investor-Owned Utility | 17 | 61.3 GWh | Aug 2026 | Oct 2025 | $27.02M | $57.43M |
| NTUA Generation - Utah, LLC | Independent Power Producer | 1 | 205.0 GWh | Aug 2026 | - | |||
| Oak Solar LLC | Stamford, CT | Independent Power Producer | 1 | 276.7 GWh | Aug 2026 | Oct 2025 | $3.41M | |
| Oberon Solar Ia | Irvine, CA | Independent Power Producer | 1 | 285.8 GWh | Aug 2026 | - | ||
| Oberon Solar Ib | Irvine, CA | Independent Power Producer | 1 | 53.3 GWh | Aug 2026 | - | ||
| Occidental Chemical Corporation | Houston, TX | Industrial | 2 | 6.1 TWh | Aug 2026 | Sep 2025 | $36.49M | |
| Ocean County Utilities AUTH - (NJ) | Bayville, NJ | Political Subdivision | 1 | 1.4 GWh | Aug 2026 | - | ||
| Odyssey Operating Services | Charlotte, NC | Independent Power Producer | 1 | 3.7 TWh | Aug 2026 | - | ||
| Oe_tn1 | Miami, FL | Independent Power Producer | 1 | 210.2 GWh | Aug 2026 | - | ||
| Ogden Projects Inc-Haverhill | Morristown, NJ | Independent Power Producer | 1 | 319.6 GWh | Aug 2026 | - | ||
| Oglethorpe Power Corporation | Tucker, GA | Cooperative | 13 | 18.0 TWh | Aug 2026 | Sep 2025 | $34.46M | $3.20M |
| Ohio Power Partners, LLC | Middletown, OH | Independent Power Producer | 1 | 3.8 TWh | Aug 2026 | Oct 2025 | $23.60M | |
| Ohio Valley Electric Corp | Piketon, OH | Investor-Owned Utility | 1 | 5.5 TWh | Aug 2026 | Oct 2025 | $196.57M | $113.71M |
| Oklahoma Gas & Electric Co | Oklahoma City, OK | Investor-Owned Utility | 22 | 17.0 TWh | Aug 2026 | Oct 2025 | $116.11M | $18.97M |
| Old 300 Solar Center, LLC | Austin, TX | Independent Power Producer | 1 | 997.9 GWh | Aug 2026 | - | ||
| Old Dominion Electric Coop | Glen Allen, VA | Cooperative | 10 | 4.9 TWh | Aug 2026 | Oct 2025 | $437.30M | $58.66M |
| Old Settler Wind, LLC | Houston, TX | Independent Power Producer | 1 | 622.3 GWh | Aug 2026 | - | ||
| Old Trail Wind Farm LLC | Ellsworth, IL | Independent Power Producer | 1 | 587.8 GWh | Aug 2026 | Oct 2025 | $2.77M | |
| OLIN Blue Cube Operations | Freeport, TX | Industrial | 1 | 2.1 TWh | Aug 2026 | - | ||
| Oliver Wind III, LLC | Juno Beach, FL | Independent Power Producer | 1 | 407.5 GWh | Aug 2026 | Sep 2025 | $2.15M | |
| Oliver Wind IV, LLC | Juno Beach, FL | Independent Power Producer | 1 | 877.1 GWh | Aug 2026 | Oct 2025 | $2.70M | |
| Omaha Public Power District | Omaha, NE | Political Subdivision | 11 | 10.0 TWh | Aug 2026 | Oct 2025 | $83.73M | $24.99M |
| Omnis Pleasants, LLC | Santa Barbara, CA | Independent Power Producer | 1 | 1.5 TWh | Aug 2026 | Oct 2025 | $7.21M | |
| Oneta Power LLC | Broken Arrow, OK | Independent Power Producer | 1 | 4.8 TWh | Aug 2026 | Oct 2025 | $71.67M | |
| Onsite Partners, LLC | Columbus, OH | Independent Power Producer | 45 | 152.1 GWh | Aug 2026 | - | ||
| Ontelaunee Energy Center | Reading, PA | Independent Power Producer | 1 | 4.0 TWh | Aug 2026 | - | ||
| Onward Energy | New York, NY | Independent Power Producer | 41 | 6.6 TWh | Aug 2026 | - | ||
| Orange Grove | Boston, MA | Independent Power Producer | 1 | 339.3 GWh | Aug 2026 | - | ||
| Orchard Ranch Solar, LLC | Miami, FL | Independent Power Producer | 1 | 50.1 GWh | Aug 2026 | - | ||
| Oriana Solar LLC | Boston, MA | Independent Power Producer | 1 | 402.5 GWh | Aug 2026 | - | ||
| Origis Energy USA, Inc | Miami, FL | Independent Power Producer | 21 | 2.0 TWh | Aug 2026 | - | ||
| Orlando Utilities COMM | Orlando, FL | Municipally-Owned Utility | 5 | 5.9 TWh | Aug 2026 | Sep 2025 | $19.92M | |
| Ormat Nevada Inc. | Reno, NV | Independent Power Producer | 28 | 3.4 TWh | Aug 2026 | - | ||
| Ormond Beach Power, LLC | Houston, TX | Independent Power Producer | 1 | 18.0 GWh | Aug 2026 | Sep 2025 | $40.40M | |
| ORNI 30 LLC | Reno, NV | Independent Power Producer | 1 | 69.7 GWh | Aug 2026 | - | ||
| Orsted Onshore North America | Austin, TX | Independent Power Producer | 1 | 1.2 TWh | Aug 2026 | - | ||
| Orsted Wind Power North America LLC | Boston, MA | Independent Power Producer | 3 | 549.3 GWh | Aug 2026 | - | ||
| Osborn Wind Energy LLC | Juno Beach, FL | Independent Power Producer | 1 | 730.1 GWh | Aug 2026 | Sep 2025 | $5.23M | |
| Osceola Windpower LLC | Juno Beach, FL | Independent Power Producer | 2 | 602.2 GWh | Aug 2026 | Jun 2019 | ||
| Oswego Harbor Power | Oswego, NY | Independent Power Producer | 1 | 121.5 GWh | Aug 2026 | Sep 2025 | $29.55M | |
| OTAY Mesa Energy Center LLC | Dublin, CA | Independent Power Producer | 1 | 1.5 TWh | Aug 2026 | Oct 2025 | $16.15M | |
| Otter Creek Ethanol LLC - Poet Ashton | Ashton, IA | Industrial | 1 | 48.5 GWh | Aug 2026 | - | ||
| Otter Tail Power Co | Fergus Falls, MN | Investor-Owned Utility | 21 | 6.5 TWh | Aug 2026 | Oct 2025 | $30.22M | $869.20k |
| Oxy VInyls LP | Houston, TX | Industrial | 2 | 1.8 TWh | Aug 2026 | - | ||
| Ozark Hydro Management, LLC | Locust Grove, AR | Independent Power Producer | 3 | 61.4 GWh | Aug 2026 | - | ||
| P66 Rodeo Solar | Rodeo, CA | Independent Power Producer | 1 | 62.5 GWh | Aug 2026 | - | ||
| Pacific Gas & Electric Co. | San Francisco, CA | Investor-Owned Utility | 88 | 34.4 TWh | Aug 2026 | Oct 2025 | $402.73M | $664.61M |
| Pacificorp | Portland, OR | Investor-Owned Utility | 85 | 53.8 TWh | Aug 2026 | Oct 2025 | $81.18M | $2.41B |
| Packaging Corp Of America | Counce, TN | Independent Power Producer | 1 | 464.5 GWh | Aug 2026 | - | ||
| Palm Springs, City Of - (Ca) | Palm Springs, CA | Municipally-Owned Utility | 1 | 8.3 GWh | Aug 2026 | - | ||
| Palmer's Creek Wind Farm, LLC | Granite Falls, MN | Independent Power Producer | 1 | 137.2 GWh | Aug 2026 | Sep 2025 | $715.05k | |
| PALO DURO Wind | Juno Beach, FL | Independent Power Producer | 1 | 1.4 TWh | Aug 2026 | Sep 2025 | $2.81M | |
| Panoche Energy Center, LLC | Needham, MA | Independent Power Producer | 1 | 826.7 GWh | Aug 2026 | Oct 2025 | $7.04M | |
| Pantex (NNSA) | Amarillo, TX | Federally-Owned Utility | 1 | 44.7 GWh | Aug 2026 | - | ||
| Par Petroleum | Houston, TX | Industrial | 1 | 177.7 GWh | Aug 2026 | - | ||
| Paris Farm Solar, LLC | Redwood City, CA | Independent Power Producer | 1 | 620.0 GWh | Aug 2026 | - | ||
| Parkway Generation Keys Energy Center LLC | Brandywine, MD | Independent Power Producer | 1 | 4.8 TWh | Aug 2026 | Oct 2025 | $76.05M | |
| Parkway Generation Operating, LLC | Houston, TX | Independent Power Producer | 3 | 3.5 TWh | Aug 2026 | Oct 2025 | $252.23M | $91.29M |
| Parkway Generation Sewaren Urban Renewal Entity LLC | Sewaren, NJ | Independent Power Producer | 1 | 2.3 TWh | Aug 2026 | Oct 2025 | $18.64M | |
| Parliament Solar, LLC | Houston, TX | Independent Power Producer | 1 | 766.0 GWh | Aug 2026 | - | ||
| Partin Solar, LLC | Charleston, SC | Independent Power Producer | 1 | 98.5 GWh | Aug 2026 | Sep 2025 | $989.25k | |
| Pasadena Cogeneration LP | Pasadena, TX | Independent Power Producer | 1 | 5.5 TWh | Aug 2026 | - | ||
| Pasco County - (FL) | New Port Richey, FL | Municipally-Owned Utility | 1 | 203.0 GWh | Aug 2026 | - | ||
| Pastoria Solar Energy Company, LLC | Houston, TX | Independent Power Producer | 1 | 61.3 GWh | Aug 2026 | - | ||
| Pattern Operators LP | San Francisco, CA | Independent Power Producer | 34 | 11.6 TWh | Aug 2026 | - | ||
| Paulding Wind Farm II LLC | Houston, TX | Independent Power Producer | 1 | 326.6 GWh | Aug 2026 | Oct 2025 | $2.96M | |
| Paulding Wind Farm III LLC | Houston, TX | Independent Power Producer | 1 | 332.3 GWh | Aug 2026 | Oct 2025 | $2.92M | |
| Paulding Wind Farm IV LLC | Houston, TX | Independent Power Producer | 1 | 418.3 GWh | Aug 2026 | Oct 2025 | $3.92M | |
| Paulsboro Refining Company - LLC | Paulsboro, NJ | Industrial | 1 | 380.2 GWh | Aug 2026 | Sep 2025 | $117.16k | |
| PB Nutclif Master, LLC | Nutley, NJ | Commercial | 1 | 56.7 GWh | Aug 2026 | - | ||
| PCA, Filer City Mill | Filer City, MI | Industrial | 1 | 102.2 GWh | Aug 2026 | - | ||
| PCI Nitrogen LLC | Pasadena, TX | Industrial | 1 | 72.2 GWh | Aug 2026 | - | ||
| PCS Phosphate | Aurora, NC | Industrial | 1 | 227.4 GWh | Aug 2026 | - | ||
| Pearl River Solar Park, LLC | Houston, TX | Independent Power Producer | 1 | 469.6 GWh | Aug 2026 | Sep 2025 | $3.99M | |
| Pegasus Wind, LLC | Juno Beach, FL | Independent Power Producer | 1 | 391.9 GWh | Aug 2026 | Sep 2025 | $3.90M | |
| PENN State University | University Park, PA | Commercial | 2 | 101.0 GWh | Aug 2026 | - | ||
| Peregrine Energy Storage, LLC | San Diego, CA | Independent Power Producer | 1 | -23.3 GWh | Aug 2026 | Oct 2025 | $542.58k | |
| Perrin Ranch Wind LLC | Juno Beach, FL | Independent Power Producer | 1 | 177.3 GWh | Aug 2026 | Sep 2025 | $3.47M | |
| Petersburg Energy Center, LLC | Petersburg, IN | Independent Power Producer | 1 | 267.6 GWh | Aug 2026 | - | ||
| Pfizer Inc | Groton, CT | Commercial | 1 | 88.2 GWh | Aug 2026 | Dec 2017 | ||
| Pheasant Run Wind LLC | Juno Beach, FL | Independent Power Producer | 1 | 255.4 GWh | Aug 2026 | Sep 2025 | $3.01M | |
| Philadelphia Water Department | Philadelphia, PA | Municipally-Owned Utility | 1 | 34.5 GWh | Aug 2026 | - | ||
| Phillips 66 | Rodeo, CA | Industrial | 5 | 78.3 GWh | Aug 2026 | Oct 2025 | $5.58M | |
| Phoebe Energy Project, LLC | San Diego, CA | Independent Power Producer | 1 | 559.5 GWh | Aug 2026 | - | ||
| Phoenix Solar South Farms LLC | Centennial, CO | Independent Power Producer | 1 | 5.2 GWh | Aug 2026 | - | ||
| PHR Holdings LLC | The Woodlands, TX | Independent Power Producer | 1 | 113.2 GWh | Aug 2026 | - | ||
| Piedmont Green Power LLC | Barnesville, GA | Independent Power Producer | 1 | 459.1 GWh | Aug 2026 | Sep 2025 | $8.07M |
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 | Aug 2026 | Nuclear |
| Barry | Bucks, Alabama | 14 TWh | Jan 1954 | Aug 2026 | Natural Gas : 96.4% Bituminous Coal : 3.6% |
| Beaver Valley | Shippingport, Pennsylvania | 15 TWh | Aug 1976 | Aug 2026 | Nuclear |
| Bowen | Cartersville, Georgia | 13 TWh | Sep 1971 | Aug 2026 | Bituminous Coal : 99.8% |
| Braidwood Generation Station | Braceville, Illinois | 20 TWh | Jun 1988 | Aug 2026 | Nuclear |
| Browns Ferry | Decatur, Alabama | 31 TWh | Jul 1974 | Aug 2026 | Nuclear |
| Brunswick Nuclear | Southport, North Carolina | 15 TWh | Oct 1975 | Aug 2026 | Nuclear |
| Byron Generating Station | Byron, Illinois | 20 TWh | Aug 1985 | Aug 2026 | Nuclear |
| Calvert Cliffs Nuclear Power Plant | Lusby, Maryland | 15 TWh | Apr 1975 | Aug 2026 | Nuclear |
| Catawba | York, South Carolina | 18 TWh | May 1985 | Aug 2026 | Nuclear |
| Comanche Peak | Glen Rose, Texas | 20 TWh | Jul 1990 | Aug 2026 | Nuclear |
| Crystal River | Crystal River, Florida | 16 TWh | Sep 1966 | Aug 2026 | Natural Gas : 69.9% Bituminous Coal : 29.9% |
| Diablo Canyon | Avila Beach, California | 19 TWh | Apr 1985 | Aug 2026 | Nuclear |
| Donald C Cook | Bridgman, Michigan | 18 TWh | Jul 1975 | Aug 2026 | Nuclear |
| Dresden Generating Station | Morris, Illinois | 15 TWh | Jul 1970 | Aug 2026 | Nuclear |
| Edwin I Hatch | Baxley, Georgia | 14 TWh | Nov 1975 | Aug 2026 | Nuclear |
| Gavin Power, LLC | Cheshire, Ohio | 12 TWh | Sep 1974 | Aug 2026 | Bituminous Coal : 99.5% |
| Grand Coulee | Grand Coulee, Washington | 19 TWh | Feb 1941 | Aug 2026 | Water |
| Guernsey Power Station | Byesville, Ohio | 12 TWh | Jan 2023 | Aug 2026 | Natural Gas |
| H Allen Franklin Combined Cycle | Smiths, Alabama | 12 TWh | May 2002 | Aug 2026 | Natural Gas |
| Jack McDonough | Smyrna, Georgia | 19 TWh | Apr 1971 | Aug 2026 | Natural Gas |
| James H Miller Jr | Quinton, Alabama | 19 TWh | Sep 1978 | Aug 2026 | Subbituminous Coal : 99.1% Natural Gas : 0.9% |
| Joseph M Farley | Columbia, Alabama | 15 TWh | Nov 1977 | Aug 2026 | Nuclear |
| Labadie | Labadie, Missouri | 15 TWh | May 1970 | Aug 2026 | Subbituminous Coal : 99.9% |
| LaSalle Generating Station | Marseilles, Illinois | 19 TWh | Dec 1983 | Aug 2026 | Nuclear |
| Limerick | Sanatoga, Pennsylvania | 19 TWh | Jan 1986 | Aug 2026 | Nuclear |
| McGuire | Huntersville, North Carolina | 19 TWh | Aug 1981 | Aug 2026 | Nuclear |
| Millstone | Waterford, Connecticut | 17 TWh | Nov 1975 | Aug 2026 | Nuclear |
| Monroe (MI) | Monroe, Michigan | 15 TWh | Oct 1969 | Aug 2026 | Subbituminous Coal : 75.1% Bituminous Coal : 15.7% Petroleum Coke : 9.0% |
| Nine Mile Point Nuclear Station | Lycoming, New York | 16 TWh | Nov 1969 | Aug 2026 | Nuclear |
| North Anna | Mineral, Virginia | 16 TWh | May 1978 | Aug 2026 | Nuclear |
| Oak Grove (TX) | Franklin, Texas | 12 TWh | Mar 2010 | Aug 2026 | Lignite Coal : 99.3% Natural Gas : 0.7% |
| Oconee | Seneca, South Carolina | 22 TWh | Jun 1973 | Aug 2026 | Nuclear |
| Palo Verde | Wintersburg, Arizona | 31 TWh | Dec 1985 | Aug 2026 | Nuclear |
| Peach Bottom | Delta, Pennsylvania | 22 TWh | Jun 1974 | Aug 2026 | Nuclear |
| Prairie State Generating Station | Marissa, Illinois | 12 TWh | May 2012 | Aug 2026 | Bituminous Coal : 99.8% |
| PSEG Salem Generating Station | Hancocks Bridge, New Jersey | 19 TWh | May 1971 | Aug 2026 | Nuclear |
| Quad Cities Generating Station | Cordova, Illinois | 15 TWh | Nov 1972 | Aug 2026 | Nuclear |
| Robert Moses Niagara | Lewiston, New York | 14 TWh | Dec 1960 | Aug 2026 | Water |
| Sequoyah | Soddy Daisy, Tennessee | 18 TWh | Jun 1981 | Aug 2026 | Nuclear |
| South Texas Project | Wadsworth, Texas | 20 TWh | Jul 1988 | Aug 2026 | Nuclear |
| St Lucie | Jensen Beach, Florida | 15 TWh | Apr 1976 | Aug 2026 | Nuclear |
| Surry | Surry, Virginia | 12 TWh | Nov 1972 | Aug 2026 | Nuclear |
| TalenEnergy Susquehanna | Berwick, Pennsylvania | 20 TWh | May 1983 | Aug 2026 | Nuclear |
| Turkey Point | Homestead, Florida | 20 TWh | Mar 1967 | Aug 2026 | Nuclear : 64.7% Natural Gas : 35.3% |
| Union Power Station | El Dorado, Arkansas | 13 TWh | Dec 2002 | Aug 2026 | Natural Gas |
| Vogtle | Waynesboro, Georgia | 37 TWh | Apr 1987 | Aug 2026 | Nuclear |
| W A Parish | Thompsons, Texas | 14 TWh | May 1958 | Aug 2026 | Subbituminous Coal : 82.1% Natural Gas : 17.9% |
| Watts Bar Nuclear Plant | Spring City, Tennessee | 20 TWh | Apr 1996 | Aug 2026 | Nuclear |
| West County Energy Center | Loxahatchee, Florida | 18 TWh | Jul 2009 | Aug 2026 | Natural Gas : 99.9% |