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 |
|---|---|---|---|---|---|---|---|---|
| NRG Cottonwood Tenant LLC | Deweyville, TX | Independent Power Producer | 1 | 5.5 TWh | Oct 2025 | Jun 2025 | $22.06M | |
| NRG Energy Gas & Wind Holdings Inc | Princeton, NJ | Independent Power Producer | 2 | 337.9 GWh | Oct 2025 | - | ||
| NRG Energy Services | Osceola, AR | Commercial|Independent Power Producer | 5 | 5.4 TWh | Oct 2025 | - | ||
| NRG Texas Power LLC | Houston, TX | Independent Power Producer | 10 | 23.6 TWh | Oct 2025 | - | ||
| Nstar Electric Company | Westwood, MA | Investor-Owned Utility | 17 | 62.3 GWh | Oct 2025 | Oct 2025 | $27.02M | $57.43M |
| NTUA Generation - Utah, LLC | Independent Power Producer | 1 | 205.6 GWh | Oct 2025 | - | |||
| Oak Solar LLC | Stamford, CT | Independent Power Producer | 1 | 280.9 GWh | Oct 2025 | Oct 2025 | $3.41M | |
| Oberon Solar Ia | Irvine, CA | Independent Power Producer | 1 | 330.9 GWh | Oct 2025 | - | ||
| Oberon Solar Ib | Irvine, CA | Independent Power Producer | 1 | 66.7 GWh | Oct 2025 | - | ||
| Occidental Chemical Corporation | Houston, TX | Industrial | 2 | 5.2 TWh | Oct 2025 | Sep 2025 | $36.49M | |
| Ocean County Utilities AUTH | Bayville, NJ | Political Subdivision | 1 | 2.1 GWh | Oct 2025 | - | ||
| Odyssey Operating Services | Charlotte, NC | Independent Power Producer | 1 | 3.9 TWh | Oct 2025 | - | ||
| Oe_tn1 | Miami, FL | Independent Power Producer | 1 | 178.0 GWh | Oct 2025 | - | ||
| OEE Xvii, LLC | Findlay, OH | Industrial | 1 | 3.4 GWh | Oct 2025 | - | ||
| Oglethorpe Power Corporation | Tucker, GA | Cooperative | 13 | 16.3 TWh | Oct 2025 | Sep 2025 | $34.46M | $3.20M |
| Ohio Power Partners, LLC | Middletown, OH | Independent Power Producer | 1 | 3.5 TWh | Oct 2025 | Oct 2025 | $23.60M | |
| Ohio Valley Electric Corp | Piketon, OH | Investor-Owned Utility | 1 | 5.6 TWh | Oct 2025 | Oct 2025 | $196.57M | $113.71M |
| Oklahoma Gas & Electric Co | Oklahoma City, OK | Investor-Owned Utility | 22 | 18.6 TWh | Oct 2025 | Oct 2025 | $116.11M | $18.97M |
| Old 300 Solar Center, LLC | Austin, TX | Independent Power Producer | 1 | 1.0 TWh | Oct 2025 | - | ||
| Old Dominion Electric Coop | Glen Allen, VA | Cooperative | 10 | 4.2 TWh | Oct 2025 | Oct 2025 | $437.30M | $58.66M |
| Old Settler Wind, LLC | Houston, TX | Independent Power Producer | 1 | 583.6 GWh | Oct 2025 | - | ||
| Old Trail Wind Farm LLC | Ellsworth, IL | Independent Power Producer | 1 | 610.9 GWh | Oct 2025 | Oct 2025 | $2.77M | |
| OLIN Blue Cube Operations | Freeport, TX | Industrial | 1 | 2.0 TWh | Oct 2025 | - | ||
| Oliver Wind III, LLC | Juno Beach, FL | Independent Power Producer | 1 | 420.6 GWh | Oct 2025 | Sep 2025 | $2.15M | |
| Oliver Wind IV, LLC | Juno Beach, FL | Independent Power Producer | 1 | 690.6 GWh | Oct 2025 | Oct 2025 | $2.70M | |
| Omaha Public Power District | Omaha, NE | Political Subdivision | 11 | 8.3 TWh | Oct 2025 | Oct 2025 | $83.73M | $25.12M |
| Omnis Pleasants, LLC | Santa Barbara, CA | Independent Power Producer | 1 | 402.3 GWh | Oct 2025 | Oct 2025 | $7.21M | |
| Oneta Power LLC | Broken Arrow, OK | Independent Power Producer | 1 | 5.4 TWh | Oct 2025 | Oct 2025 | $72.96M | |
| Ontelaunee Energy Center | Reading, PA | Independent Power Producer | 1 | 4.4 TWh | Oct 2025 | - | ||
| Onward Energy | New York, NY | Independent Power Producer | 41 | 6.6 TWh | Oct 2025 | - | ||
| Orange Grove | Boston, MA | Independent Power Producer | 1 | 138.1 GWh | Oct 2025 | - | ||
| Orchard Ranch Solar, LLC | Boston, MA | Independent Power Producer | 1 | 48.2 GWh | Oct 2025 | - | ||
| Oregon Clean Energy Center | Oregon, OH | Independent Power Producer | 1 | 6.0 TWh | Oct 2025 | Oct 2025 | $58.02M | |
| Oregon State University | Corvallis, OR | State-Owned Utility | 1 | 37.0 GWh | Oct 2025 | - | ||
| Oriana Solar LLC | Boston, MA | Independent Power Producer | 1 | 73.1 GWh | Oct 2025 | - | ||
| Origis Energy USA, Inc | Miami, FL | Independent Power Producer | 21 | 631.1 GWh | Oct 2025 | - | ||
| Orlando Utilities COMM | Orlando, FL | Municipally-Owned Utility | 5 | 4.3 TWh | Oct 2025 | Sep 2025 | $19.92M | |
| Ormat Nevada Inc. | Reno, NV | Independent Power Producer | 28 | 3.4 TWh | Oct 2025 | - | ||
| Orsted Onshore North America | Austin, TX | Independent Power Producer | 1 | 1.2 TWh | Oct 2025 | - | ||
| Orsted Wind Power North America LLC | Boston, MA | Independent Power Producer | 3 | 569.1 GWh | Oct 2025 | - | ||
| Osborn Wind Energy LLC | Juno Beach, FL | Independent Power Producer | 1 | 740.6 GWh | Oct 2025 | Sep 2025 | $5.23M | |
| Osceola Windpower LLC | Juno Beach, FL | Independent Power Producer | 2 | 643.3 GWh | Oct 2025 | Jun 2019 | ||
| OTAY Mesa Energy Center LLC | Dublin, CA | Independent Power Producer | 1 | 2.0 TWh | Oct 2025 | Oct 2025 | $16.15M | |
| Otter Creek Ethanol LLC - Poet Ashton | Ashton, IA | Industrial | 1 | 46.7 GWh | Oct 2025 | - | ||
| Otter Tail Power Co | Fergus Falls, MN | Investor-Owned Utility | 21 | 5.9 TWh | Oct 2025 | Oct 2025 | $30.22M | $869.20k |
| Oxnard City Of | Oxnard, CA | Municipally-Owned Utility | 1 | 4.4 GWh | Oct 2025 | - | ||
| Oxy VInyls LP | Houston, TX | Industrial | 2 | 2.0 TWh | Oct 2025 | - | ||
| Ozark Hydro Management, LLC | Locust Grove, AR | Independent Power Producer | 3 | 55.1 GWh | Oct 2025 | - | ||
| P66 Rodeo Solar | Rodeo, CA | Independent Power Producer | 1 | 37.6 GWh | Oct 2025 | - | ||
| Pacific Gas & Electric Co. | San Francisco, CA | Investor-Owned Utility | 87 | 35.1 TWh | Oct 2025 | Oct 2025 | $402.73M | $664.61M |
| Pacificorp | Portland, OR | Investor-Owned Utility | 85 | 49.9 TWh | Oct 2025 | Oct 2025 | $81.18M | $2.41B |
| Packaging Corp Of America | Counce, TN | Independent Power Producer | 1 | 470.2 GWh | Oct 2025 | - | ||
| Palm Springs City Of | Palm Springs, CA | Municipally-Owned Utility | 1 | 6.9 GWh | Oct 2025 | - | ||
| Palmer's Creek Wind Farm, LLC | Granite Falls, MN | Independent Power Producer | 1 | 140.9 GWh | Oct 2025 | Sep 2025 | $715.05k | |
| PALO DURO Wind | Juno Beach, FL | Independent Power Producer | 1 | 848.7 GWh | Oct 2025 | Sep 2025 | $2.81M | |
| Panoche Energy Center, LLC | Needham, MA | Independent Power Producer | 1 | 965.8 GWh | Oct 2025 | Oct 2025 | $7.04M | |
| Pantex (NNSA) | Amarillo, TX | Federally-Owned Utility | 1 | 10.2 GWh | Oct 2025 | - | ||
| Par Petroleum | Houston, TX | Industrial | 1 | 219.7 GWh | Oct 2025 | - | ||
| Paris Farm Solar, LLC | Redwood City, CA | Independent Power Producer | 1 | 616.5 GWh | Oct 2025 | - | ||
| Partin Solar, LLC | Charleston, SC | Independent Power Producer | 1 | 91.2 GWh | Oct 2025 | Sep 2025 | $989.25k | |
| Pasadena Cogeneration LP | Pasadena, TX | Independent Power Producer | 1 | 5.3 TWh | Oct 2025 | - | ||
| Pasco County | New Port Richey, FL | Municipally-Owned Utility | 1 | 190.0 GWh | Oct 2025 | - | ||
| Pattern Operators LP | San Francisco, CA | Independent Power Producer | 32 | 11.6 TWh | Oct 2025 | - | ||
| Paulding Wind Farm II LLC | Houston, TX | Independent Power Producer | 1 | 337.9 GWh | Oct 2025 | Oct 2025 | $2.96M | |
| Paulding Wind Farm III LLC | Houston, TX | Independent Power Producer | 1 | 339.4 GWh | Oct 2025 | Oct 2025 | $2.92M | |
| Paulding Wind Farm IV LLC | Houston, TX | Independent Power Producer | 1 | 421.5 GWh | Oct 2025 | Oct 2025 | $3.92M | |
| Paulsboro Refining Company - LLC | Paulsboro, NJ | Industrial | 1 | 373.7 GWh | Oct 2025 | Sep 2025 | $117.16k | |
| PB Nutclif Master, LLC | Nutley, NJ | Commercial | 1 | 49.2 GWh | Oct 2025 | - | ||
| PCA, Filer City Mill | Filer City, MI | Industrial | 1 | 99.5 GWh | Oct 2025 | - | ||
| PCI Nitrogen LLC | Pasadena, TX | Industrial | 1 | 70.3 GWh | Oct 2025 | - | ||
| PCS Phosphate | Aurora, NC | Industrial | 1 | 212.2 GWh | Oct 2025 | - | ||
| Pearl River Solar Park, LLC | Houston, TX | Independent Power Producer | 1 | 463.1 GWh | Oct 2025 | Sep 2025 | $3.99M | |
| Pegasus Wind, LLC | Juno Beach, FL | Independent Power Producer | 1 | 420.9 GWh | Oct 2025 | Sep 2025 | $3.90M | |
| PEI Power Corp | Archbald, PA | Independent Power Producer | 1 | 82.2 GWh | Oct 2025 | Oct 2025 | $325.13k | |
| PENN State University | University Park, PA | Commercial | 2 | 99.9 GWh | Oct 2025 | - | ||
| Peony Solar, LLC | Asheville, NC | Independent Power Producer | 1 | 78.7 GWh | Oct 2025 | Sep 2025 | $833.97k | |
| Peregrine Energy Storage, LLC | San Diego, CA | Independent Power Producer | 1 | -7.6 GWh | Oct 2025 | Oct 2025 | $542.58k | |
| Perrin Ranch Wind LLC | Juno Beach, FL | Independent Power Producer | 1 | 193.6 GWh | Oct 2025 | Sep 2025 | $3.47M | |
| Pfizer Inc | Groton, CT | Commercial | 1 | 83.8 GWh | Oct 2025 | Dec 2017 | ||
| Pheasant Run Wind LLC | Juno Beach, FL | Independent Power Producer | 1 | 275.4 GWh | Oct 2025 | Sep 2025 | $3.01M | |
| Philadelphia Water Department | Philadelphia, PA | Municipally-Owned Utility | 1 | 31.7 GWh | Oct 2025 | - | ||
| Phillips 66 | Rodeo, CA | Industrial | 5 | 75.7 GWh | Oct 2025 | Oct 2025 | $5.58M | |
| Phillips 66 - LOS Angeles | Houston, TX | Industrial | 1 | 427.3 GWh | Oct 2025 | - | ||
| Phobos Solar, LLC | Asheville, NC | Independent Power Producer | 1 | 187.1 GWh | Oct 2025 | Sep 2025 | $1.91M | |
| Phoebe Energy Project, LLC | San Diego, CA | Independent Power Producer | 1 | 601.1 GWh | Oct 2025 | - | ||
| Phoenix Solar South Farms LLC | Centennial, CO | Independent Power Producer | 1 | 7.1 GWh | Oct 2025 | - | ||
| PHR Holdings LLC | The Woodlands, TX | Independent Power Producer | 1 | 116.5 GWh | Oct 2025 | - | ||
| Piedmont Green Power LLC | Barnesville, GA | Independent Power Producer | 1 | 428.9 GWh | Oct 2025 | Sep 2025 | $8.07M | |
| Pima Energy Storage System | Juno Beach, FL | Independent Power Producer | 1 | -641.0 MWh | Oct 2025 | Sep 2025 | $237.65k | |
| Pinal Central Energy Center, LLC | Juno Beach, FL | Independent Power Producer | 1 | 59.8 GWh | Oct 2025 | Sep 2025 | $1.56M | |
| Pine Bluff Energy LLC | Pine Bluff, AR | Independent Power Producer | 1 | 959.3 GWh | Oct 2025 | Oct 2025 | $34.87M | |
| Pine Gate Renewables | Asheville, NC | Independent Power Producer | 7 | 216.5 GWh | Oct 2025 | - | ||
| Pinnacle Wind, LLC | Keyser, WV | Independent Power Producer | 1 | 203.3 GWh | Oct 2025 | Oct 2025 | $4.71M | |
| Pioneer HUTT Wind Energy, LLC | Juno Beach, FL | Independent Power Producer | 1 | 669.6 GWh | Oct 2025 | - | ||
| Pioneer Prairie Wind Farm I, LLC | Leroy, MN | Independent Power Producer | 1 | 947.7 GWh | Oct 2025 | Oct 2025 | $15.70M | |
| Pioneer Solar (Co), LLC | Bennett, CO | Independent Power Producer | 1 | 195.0 GWh | Oct 2025 | Sep 2025 | $1.36M | |
| Pittsfield Generating Company, LP | Pittsfield, MA | Independent Power Producer | 1 | 131.7 GWh | Oct 2025 | Sep 2025 | $2.09M | |
| Pixelle Specialty Solution, LLC | Spring Grove, PA | Industrial | 3 | 715.7 GWh | Oct 2025 | Oct 2025 | $944.05k | |
| Pixley Solar Energy LLC | Chicago, IL | Investor-Owned Utility | 1 | 249.8 GWh | Oct 2025 | May 2025 | $913.33k | |
| Placer County Water Agency | Foresthill, CA | Political Subdivision | 5 | 886.1 GWh | Oct 2025 | Sep 2025 | $230.03k |
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 | Oct 2025 | Nuclear |
| Barry | Bucks, Alabama | 12 TWh | Jan 1954 | Oct 2025 | Natural Gas : 95.1% Bituminous Coal : 4.9% |
| Beaver Valley | Shippingport, Pennsylvania | 15 TWh | Aug 1976 | Oct 2025 | Nuclear |
| Bowen | Cartersville, Georgia | 11 TWh | Sep 1971 | Oct 2025 | Bituminous Coal : 99.8% |
| Braidwood Generation Station | Braceville, Illinois | 20 TWh | Jun 1988 | Oct 2025 | Nuclear |
| Browns Ferry | Decatur, Alabama | 30 TWh | Jul 1974 | Oct 2025 | Nuclear |
| Brunswick Nuclear | Southport, North Carolina | 16 TWh | Oct 1975 | Oct 2025 | Nuclear |
| Byron Generating Station | Byron, Illinois | 20 TWh | Aug 1985 | Oct 2025 | Nuclear |
| Calvert Cliffs Nuclear Power Plant | Lusby, Maryland | 15 TWh | Apr 1975 | Oct 2025 | Nuclear |
| Catawba | York, South Carolina | 19 TWh | May 1985 | Oct 2025 | Nuclear |
| Comanche Peak | Glen Rose, Texas | 19 TWh | Jul 1990 | Oct 2025 | Nuclear |
| Crystal River | Crystal River, Florida | 15 TWh | Sep 1966 | Oct 2025 | Natural Gas : 75.4% Bituminous Coal : 24.4% |
| Diablo Canyon | Avila Beach, California | 18 TWh | Apr 1985 | Oct 2025 | Nuclear |
| Donald C Cook | Bridgman, Michigan | 18 TWh | Jul 1975 | Oct 2025 | Nuclear |
| Dresden Generating Station | Morris, Illinois | 15 TWh | Jul 1970 | Oct 2025 | Nuclear |
| Edwin I Hatch | Baxley, Georgia | 14 TWh | Nov 1975 | Oct 2025 | Nuclear |
| Gavin Power, LLC | Cheshire, Ohio | 13 TWh | Sep 1974 | Oct 2025 | Bituminous Coal : 99.5% Distillate Fuel Oil : 0.5% |
| Grand Coulee | Grand Coulee, Washington | 16 TWh | Feb 1941 | Oct 2025 | Water |
| Grand Gulf | Port Gibson, Mississippi | 11 TWh | Jun 1985 | Oct 2025 | Nuclear |
| Guernsey Power Station | Byesville, Ohio | 11 TWh | Jan 2023 | Oct 2025 | Natural Gas |
| H Allen Franklin Combined Cycle | Smiths, Alabama | 12 TWh | May 2002 | Oct 2025 | Natural Gas |
| Hines Energy Complex | Bartow, Florida | 12 TWh | Mar 1999 | Oct 2025 | Natural Gas |
| Jack McDonough | Smyrna, Georgia | 17 TWh | Apr 1971 | Oct 2025 | Natural Gas |
| James H Miller Jr | Quinton, Alabama | 19 TWh | Sep 1978 | Oct 2025 | Subbituminous Coal : 99.2% Natural Gas : 0.8% |
| Joseph M Farley | Columbia, Alabama | 13 TWh | Nov 1977 | Oct 2025 | Nuclear |
| Labadie | Labadie, Missouri | 16 TWh | May 1970 | Oct 2025 | Subbituminous Coal : 99.9% |
| LaSalle Generating Station | Marseilles, Illinois | 19 TWh | Dec 1983 | Oct 2025 | Nuclear |
| Limerick | Sanatoga, Pennsylvania | 19 TWh | Jan 1986 | Oct 2025 | Nuclear |
| McGuire | Huntersville, North Carolina | 20 TWh | Aug 1981 | Oct 2025 | Nuclear |
| Millstone | Waterford, Connecticut | 17 TWh | Nov 1975 | Oct 2025 | Nuclear |
| Monroe (MI) | Monroe, Michigan | 16 TWh | Oct 1969 | Oct 2025 | Subbituminous Coal : 74.1% Bituminous Coal : 16.5% Petroleum Coke : 9.1% |
| Nine Mile Point Nuclear Station | Lycoming, New York | 16 TWh | Nov 1969 | Oct 2025 | Nuclear |
| North Anna | Mineral, Virginia | 15 TWh | May 1978 | Oct 2025 | Nuclear |
| Oconee | Seneca, South Carolina | 23 TWh | Jun 1973 | Oct 2025 | Nuclear |
| Okeechobee Clean Energy Center | Okeechobee, Florida | 12 TWh | Feb 2019 | Oct 2025 | Natural Gas |
| Palo Verde | Wintersburg, Arizona | 32 TWh | Dec 1985 | Oct 2025 | Nuclear |
| Peach Bottom | Delta, Pennsylvania | 22 TWh | Jun 1974 | Oct 2025 | Nuclear |
| PSEG Salem Generating Station | Hancocks Bridge, New Jersey | 18 TWh | May 1971 | Oct 2025 | Nuclear |
| Quad Cities Generating Station | Cordova, Illinois | 15 TWh | Nov 1972 | Oct 2025 | Nuclear |
| Robert Moses Niagara | Lewiston, New York | 14 TWh | Dec 1960 | Oct 2025 | Water |
| Sequoyah | Soddy Daisy, Tennessee | 13 TWh | Jun 1981 | Oct 2025 | Nuclear |
| South Texas Project | Wadsworth, Texas | 22 TWh | Jul 1988 | Oct 2025 | Nuclear |
| St Lucie | Jensen Beach, Florida | 16 TWh | Apr 1976 | Oct 2025 | Nuclear |
| Surry | Surry, Virginia | 14 TWh | Nov 1972 | Oct 2025 | Nuclear |
| TalenEnergy Susquehanna | Berwick, Pennsylvania | 19 TWh | May 1983 | Oct 2025 | Nuclear |
| Turkey Point | Homestead, Florida | 20 TWh | Mar 1967 | Oct 2025 | Nuclear : 68.2% Natural Gas : 31.8% |
| Vogtle | Waynesboro, Georgia | 36 TWh | Apr 1987 | Oct 2025 | Nuclear |
| W A Parish | Thompsons, Texas | 15 TWh | May 1958 | Oct 2025 | Subbituminous Coal : 83.8% Natural Gas : 16.2% |
| Watts Bar Nuclear Plant | Spring City, Tennessee | 15 TWh | Apr 1996 | Oct 2025 | Nuclear |
| West County Energy Center | Loxahatchee, Florida | 18 TWh | Jul 2009 | Oct 2025 | Natural Gas : 99.9% |