Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Rockhound A | Origis Energy USA, Inc | Odessa, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 216.6 GWh | - | Aug 2026 | Solar |
| Swift Air Solar II | Origis Energy USA, Inc | Odessa, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 303.1 GWh | Oct 2025 | Aug 2026 | Solar |
| Wheatland | Origis Energy USA, Inc | Wheatland, IN | Midcontinent Independent System Operator, Inc. (MISO) | 226.2 GWh | - | Aug 2026 | Solar |
| Optimist | Origis Energy USA, Inc | West Point, MS | Tennessee Valley Authority (TVA) | 300.6 GWh | - | Aug 2026 | Solar : 99.8% |
| Swift Air Solar I | Origis Energy USA, Inc | Goldsmith, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 373.0 GWh | Mar 2025 | Aug 2026 | Solar |
| Origin Wind | Origin Wind Energy LLC | Hennepin, OK | Southwest Power Pool (SWPP) | 295.7 GWh | Oct 2014 | Dec 2025 | Wind |
| Oriana Solar LLC | Oriana Solar LLC | Victoria, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 402.5 GWh | Jul 2025 | Aug 2026 | Solar |
| OES Biogas Power | Organic Energy Solutions, Inc. | San Bernardino, CA | California Independent System Operator (CISO) | 904.0 MWh | - | Dec 2025 | Other Biomass Gas |
| Oregon State University Energy Center | Oregon State University | Corvallis, OR | Bonneville Power Administration (BPAT) | 34.5 GWh | May 2010 | Jul 2026 | Natural Gas |
| Dry Creek LFG to Energy Project | Oregon Environmental Industries LLC | Eagle Point, OR | PacifiCorp West (PACW) | 16.3 GWh | Jun 2007 | Dec 2025 | Landfill Gas |
| Oregon Clean Energy Center | Oregon Clean Energy Center | Oregon, OH | PJM Interconnection, LLC (PJM) | 5.7 TWh | Jun 2017 | Aug 2026 | Natural Gas |
| Orchard Windfarm 1, LLC | Orchard Windfarm, LLC | Lexington, OR | PacifiCorp West (PACW) | 18.6 GWh | Nov 2020 | Dec 2025 | Wind |
| Orchard Windfarm 4, LLC | Orchard Windfarm, LLC | Lexington, OR | PacifiCorp West (PACW) | 17.3 GWh | Nov 2020 | Dec 2025 | Wind |
| Orchard Windfarm 3, LLC | Orchard Windfarm, LLC | Lexington, OR | Bonneville Power Administration (BPAT) | 17.0 GWh | Nov 2020 | Dec 2025 | Wind |
| Orchard Windfarm 2, LLC | Orchard Windfarm, LLC | Lexington, OR | Bonneville Power Administration (BPAT) | 18.6 GWh | Nov 2020 | Dec 2025 | Wind |
| Orchard Ranch Solar | Orchard Ranch Solar, LLC | Kuna, ID | Idaho Power Company (IPCO) | 44.6 GWh | Feb 2017 | Aug 2026 | Solar |
| Orchard Knob | Orchard Knob Solar LLC | Dallas, OR | PacifiCorp West (PACW) | 993.0 MWh | Dec 2024 | Nov 2025 | Solar |
| Heber Geothermal | ORCAL Geothermal, Inc | Heber, CA | Imperial Irrigation District (IID) | 376.3 GWh | May 1985 | Dec 2025 | Geothermal |
| Second Imperial Geothermal | ORCAL Geothermal, Inc | Heber, CA | Imperial Irrigation District (IID) | 275.2 GWh | May 1993 | Dec 2025 | Geothermal |
| Orange Grove Peaking Facility | Orange Grove Energy LP | Pala, CA | California Independent System Operator (CISO) | 9.1 GWh | May 2010 | Dec 2025 | Natural Gas |
| Orange Grove | Orange Grove | Jim Wells, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 308.4 GWh | May 2025 | Aug 2026 | Solar |
| Plant No 2 Orange County | Orange County Sanitation Dist - (CA) | Huntington Beach, CA | California Independent System Operator (CISO) | 46.9 GWh | May 1993 | Dec 2025 | Other Biomass Gas : 77.2% Natural Gas : 22.8% |
| Plant No 1 Orange County | Orange County Sanitation Dist - (CA) | Fountain Valley, CA | California Independent System Operator (CISO) | 40.8 GWh | May 1993 | Dec 2025 | Other Biomass Gas : 81.6% Natural Gas : 18.4% |
| OR Solar 2, LLC | OR Solar 2, LLC | Eagle Point, OR | PacifiCorp West (PACW) | 20.7 GWh | Sep 2020 | Dec 2025 | Solar |
| Tolson Solar | Oppidum Renewables USA, LLC | Tarboro, NC | PJM Interconnection, LLC (PJM) | 2.4 GWh | Nov 2015 | Dec 2025 | Solar |
| Wadesboro Solar | Oppidum Renewables USA, LLC | Wadesboro, NC | Duke Energy Progress East (CPLE) | 8.8 GWh | Nov 2017 | Dec 2025 | Solar |
| Salisbury Solar | Oppidum Renewables USA, LLC | Salisbury, NC | Duke Energy Carolinas (DUK) | 7.7 GWh | Jul 2018 | Dec 2025 | Solar |
| Bedford Solar (Oppidum) | Oppidum Renewables USA, LLC | Bedford, VA | PJM Interconnection, LLC (PJM) | 4.1 GWh | Nov 2017 | Dec 2025 | Solar |
| Gamble Solar | Oppidum Renewables USA, LLC | Bostic, NC | Duke Energy Carolinas (DUK) | 5.8 GWh | Nov 2019 | Dec 2025 | Solar |
| Yadkinville Solar | Oppidum Renewables USA, LLC | Yadkinville, NC | Duke Energy Carolinas (DUK) | 4.0 GWh | Nov 2015 | Dec 2025 | Solar |
| Battleboro Farm | Oppidum Renewables USA, LLC | South Whitakers, NC | PJM Interconnection, LLC (PJM) | 7.7 GWh | Nov 2015 | Dec 2025 | Solar |
| Mayberry Solar LLC | Oppidum Renewables USA, LLC | Mt. Airy, NC | Duke Energy Carolinas (DUK) | 1.5 GWh | Sep 2011 | Dec 2025 | Solar |
| Sandy Cross Solar, LLC | Oppidum Renewables USA, LLC | Elm City, NC | Duke Energy Progress East (CPLE) | 1.2 GWh | Apr 2012 | Dec 2025 | Solar |
| Ararat Rock Solar, LLC | Oppidum Renewables USA, LLC | Mount Airy, NC | Duke Energy Carolinas (DUK) | 5.6 GWh | Aug 2012 | Dec 2025 | Solar |
| Progress Solar 1, LLC | Oppidum Renewables USA, LLC | Bunn, NC | Duke Energy Progress East (CPLE) | 4.6 GWh | Sep 2012 | Dec 2025 | Solar |
| Progress Solar II, LLC | Oppidum Renewables USA, LLC | Fairmont, NC | Duke Energy Progress East (CPLE) | 5.4 GWh | Oct 2012 | Dec 2025 | Solar |
| Progress Solar III, LLC | Oppidum Renewables USA, LLC | Maxton, NC | Duke Energy Progress East (CPLE) | 5.6 GWh | Oct 2012 | Dec 2025 | Solar |
| Montgomery Solar LLC | Oppidum Renewables USA, LLC | Biscoe, NC | Duke Energy Carolinas (DUK) | 36.3 GWh | Nov 2015 | Dec 2025 | Solar |
| Cirrus Solar LLC | Oppidum Renewables USA, LLC | Bunn, NC | Duke Energy Carolinas (DUK) | 5.9 GWh | Nov 2014 | Dec 2025 | Solar |
| Chocowinity Solar LLC | Oppidum Renewables USA, LLC | Chocowinity, NC | Duke Energy Carolinas (DUK) | 4.8 GWh | Nov 2014 | Dec 2025 | Solar |
| Rockwell Solar LLC | Oppidum Renewables USA, LLC | Rockwell, NC | Duke Energy Carolinas (DUK) | 4.1 GWh | Nov 2014 | Dec 2025 | Solar |
| Gates Solar LLC | Oppidum Renewables USA, LLC | Eure, NC | PJM Interconnection, LLC (PJM) | 6.4 GWh | Nov 2015 | Dec 2025 | Solar |
| Whitegrass No. 1 | Open Mountain Energy LLC. | Yerington, NV | Nevada Power Company (NEVP) | 17.0 GWh | Sep 2018 | Dec 2025 | Geothermal |
| Pima Community College NW | Onyx Asset Services Group | Tucson, AZ | Tucson Electric Power (TEPC) | 3.0 GWh | Mar 2019 | Dec 2025 | Solar |
| Jersey City DWP | Onyx Asset Services Group | Jersey City, NJ | PJM Interconnection, LLC (PJM) | 1.2 GWh | Nov 2019 | Dec 2025 | Solar |
| Onyx - Lamphear Road CSG | Onyx Asset Services Group | Rome, NY | New York Independent System Operator (NYIS) | 2.6 GWh | Sep 2016 | Dec 2025 | Solar |
| Middle Daisy | Onyx Asset Services Group | Lovington, NM | Southwest Power Pool (SWPP) | 9.4 GWh | Oct 2017 | Dec 2025 | Solar |
| Onyx - Allen Harim | Onyx Asset Services Group | Harbeson, DE | PJM Interconnection, LLC (PJM) | 1.7 GWh | Mar 2017 | Dec 2025 | Solar |
| Barrett Farm Solar - Phase I | Onyx Asset Services Group | Thompson, CT | ISO New England (ISNE) | 2.5 GWh | Sep 2017 | Dec 2025 | Solar |
| Onyx - Brockton Thatcher Landfill Solar | Onyx Asset Services Group | Brockton, MA | ISO New England (ISNE) | 5.0 GWh | Oct 2017 | Dec 2025 | Solar |
| Onyx - Pembroke Landfill Solar | Onyx Asset Services Group | Pembroke, MA | ISO New England (ISNE) | 3.5 GWh | Nov 2017 | Dec 2025 | Solar |
| Onyx - Saratoga Springs Landfill Solar C | Onyx Asset Services Group | Saratoga Springs, NY | New York Independent System Operator (NYIS) | 2.9 GWh | Oct 2017 | Dec 2025 | Solar |
| Manchester Community College East | Onyx Asset Services Group | Manchester, CT | ISO New England (ISNE) | 1.6 GWh | Sep 2018 | Dec 2025 | Solar |
| Duanesburg | Onyx Asset Services Group | Duanesburg, NY | New York Independent System Operator (NYIS) | 3.1 GWh | Mar 2018 | Dec 2025 | Solar |
| Manchester Community College North | Onyx Asset Services Group | Great Path, CT | ISO New England (ISNE) | 885.0 MWh | Sep 2018 | Dec 2025 | Solar |
| Johnstown | Onyx Asset Services Group | Johnstown, NY | New York Independent System Operator (NYIS) | 3.4 GWh | Mar 2018 | Dec 2025 | Solar |
| APG New Chesapeake | Onyx Asset Services Group | Aberdeen, MD | PJM Interconnection, LLC (PJM) | 3.9 GWh | Sep 2018 | Dec 2025 | Solar |
| Sharon Springs | Onyx Asset Services Group | Sharon Springs, NY | New York Independent System Operator (NYIS) | 3.2 GWh | Apr 2018 | Dec 2025 | Solar |
| APG Old Bayside | Onyx Asset Services Group | Aberdeen, MD | PJM Interconnection, LLC (PJM) | 3.0 GWh | Sep 2018 | Dec 2025 | Solar |
| Amsterdam North | Onyx Asset Services Group | Amsterdam, NY | New York Independent System Operator (NYIS) | 3.1 GWh | Mar 2018 | Dec 2025 | Solar |
| Amsterdam South | Onyx Asset Services Group | Amsterdam, NY | New York Independent System Operator (NYIS) | 1.8 GWh | Mar 2018 | Dec 2025 | Solar |
| Broadalbin | Onyx Asset Services Group | Broadalbin, NY | New York Independent System Operator (NYIS) | 2.9 GWh | Mar 2018 | Dec 2025 | Solar |
| Winchendon Landfill Solar | Onyx Asset Services Group | Winchendon, MA | ISO New England (ISNE) | 2.4 GWh | Sep 2018 | Dec 2025 | Solar |
| SeaWorld Aquatica | Onyx Asset Services Group | Chula Vista, CA | California Independent System Operator (CISO) | 1.7 GWh | Apr 2018 | Dec 2025 | Solar |
| Riley III - Site 12 Community Solar | Onyx Asset Services Group | Fort Riley, KS | Southwest Power Pool (SWPP) | 1.9 GWh | Dec 2024 | Dec 2025 | Solar |
| North Troy | Onyx Asset Services Group | Troy, NY | New York Independent System Operator (NYIS) | 5.9 GWh | Sep 2024 | Dec 2025 | Solar |
| Oaks HOA | Onyx Asset Services Group | Ione, CA | California Independent System Operator (CISO) | 1.7 GWh | Mar 2025 | Dec 2025 | Solar |
| Riley III - Site 6 Community Solar | Onyx Asset Services Group | Fort Riley, KS | Southwest Power Pool (SWPP) | 3.4 GWh | Feb 2025 | Dec 2025 | Solar |
| Paso Robles - Municipal Airport | Onyx Asset Services Group | Paso Robles, CA | California Independent System Operator (CISO) | 7.6 GWh | Dec 2023 | Dec 2025 | Solar |
| Ellington - 277 Sadds Mill | Onyx Asset Services Group | Ellington, CT | ISO New England (ISNE) | 3.6 GWh | Feb 2024 | Dec 2025 | Solar |
| Corvias - Fort Riley II | Onyx Asset Services Group | Fort Riley, KS | Southwest Power Pool (SWPP) | 1.9 GWh | Jan 2022 | Dec 2025 | Solar |
| Toyota Boshoku | Onyx Asset Services Group | Lawrenceville, IL | Midcontinent Independent System Operator, Inc. (MISO) | 4.7 GWh | Apr 2025 | Dec 2025 | Solar |
| Tucson - CAVSARP | Onyx Asset Services Group | Marana, AZ | Tucson Electric Power (TEPC) | 5.9 GWh | Jul 2025 | Dec 2025 | Solar |
| Pacific Aviation | Onyx Asset Services Group | Van Nuys, CA | Los Angeles Department of Water and Power (LDWP) | 2.9 GWh | Mar 2025 | Dec 2025 | Solar |
| BRE - Ritz Carlton Kapalua | Onyx Asset Services Group | Lahaina, HI | (HECO) | 127.0 MWh | Nov 2025 | Dec 2025 | Solar |
| New Britain - 142 Deming Rd | Onyx Asset Services Group | Berlin, CT | ISO New England (ISNE) | 44.0 MWh | Nov 2025 | Dec 2025 | Solar |
| Marathon Petroleum - Robinson Refinery | Onyx Asset Services Group | Robinson, IL | Midcontinent Independent System Operator, Inc. (MISO) | 5.4 GWh | May 2025 | Dec 2025 | Solar |
| Stanley Black & Decker | Onyx Asset Services Group | East Longmeadow, MA | ISO New England (ISNE) | 6.0 MWh | Nov 2025 | Dec 2025 | Solar |
| Legoland CA Phase I | Onyx Asset Services Group | Carlsbad, CA | California Independent System Operator (CISO) | 1.4 GWh | May 2025 | Dec 2025 | Solar |
| Amazon - SAN5 | Onyx Asset Services Group | San Diego, CA | California Independent System Operator (CISO) | 530.0 MWh | Oct 2025 | Dec 2025 | Solar |
| Bystronic Manufacturing | Onyx Asset Services Group | Hoffman Estates, IL | PJM Interconnection, LLC (PJM) | 515.0 MWh | Jul 2025 | Dec 2025 | Solar |
| Fort Polk (fka Johnson) - Chaffee East | Onyx Asset Services Group | Fort Polk North, LA | Midcontinent Independent System Operator, Inc. (MISO) | 644.0 MWh | Oct 2025 | Dec 2025 | Solar |
| Fort Polk (fka Johnson) - Chaffee West | Onyx Asset Services Group | Fort Polk North, LA | Midcontinent Independent System Operator, Inc. (MISO) | 750.0 MWh | Oct 2025 | Dec 2025 | Solar |
| RE Maplewood | Onward Energy | McCamey, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 529.6 GWh | Mar 2021 | Aug 2026 | Solar |
| Twiggs Solar | Onward Energy | Dry Branch, GA | Southern Company Services, Inc. - Trans (SOCO) | 417.9 GWh | Aug 2020 | Aug 2026 | Solar |
| Sweetwater Solar | Onward Energy | Green River, WY | PacifiCorp East (PACE) | 174.8 GWh | Nov 2018 | Aug 2026 | Solar |
| Imperial Valley Solar Co (IVSC) 2, LLC | Onward Energy | Niland, CA | Imperial Irrigation District (IID) | 43.9 GWh | May 2015 | Dec 2025 | Solar |
| Comanche Solar | Onward Energy | Pueblo, CO | Public Service Company of Colorado (PSCO) | 198.7 GWh | Aug 2016 | Aug 2026 | Solar |
| Three Peaks Power | Onward Energy | Cedar City, UT | PacifiCorp East (PACE) | 225.1 GWh | Nov 2016 | Aug 2026 | Solar |
| Richland Solar Center | Onward Energy | Jeffersonville, GA | Southeastern Power Administration (SEPA) | 37.1 GWh | Nov 2015 | Dec 2025 | Solar |
| South Plains II | Onward Energy | Lockney, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 1.1 TWh | May 2016 | Aug 2026 | Wind |
| Sunflower Wind Project | Onward Energy | Mandan, ND | Western Area Power Administration - Rocky Mountain Region (WACM) | 429.7 GWh | Nov 2016 | Aug 2026 | Wind |
| Cottonwood Solar, LLC Cottonwood Carport | Onward Energy | Novato, CA | California Independent System Operator (CISO) | 1.1 GWh | Apr 2016 | Dec 2025 | Solar |
| Sumrall II Solar Farm | Onward Energy | Sumrall, MS | Midcontinent Independent System Operator, Inc. (MISO) | 109.0 GWh | Nov 2017 | Aug 2026 | Solar |
| CoTAL Solar Farm | Onward Energy | Tallahassee, FL | City of Tallahassee (TAL) | 38.0 GWh | Nov 2017 | Dec 2025 | Solar |
| Pavant Solar, LLC | Onward Energy | Fillmore, UT | PacifiCorp East (PACE) | 112.1 GWh | Nov 2015 | Aug 2026 | Solar |
| OE_GA3 | Onward Energy | Camilla, GA | Southern Company Services, Inc. - Trans (SOCO) | 121.6 GWh | Nov 2019 | Aug 2026 | Solar |
| FL Solar 4, LLC | Onward Energy | Tallahassee, FL | City of Tallahassee (TAL) | 72.7 GWh | Nov 2019 | Aug 2026 | Solar |
| OE_AZ1 | Onward Energy | Salome, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 76.8 GWh | Nov 2019 | Aug 2026 | Solar |
| TA-Acacia, LLC | Onward Energy | Lancaster, CA | California Independent System Operator (CISO) | 48.3 GWh | Oct 2014 | Dec 2025 | Solar |
Summary of Power Plants By State
Figures are based on August 2026 generation numbers.| State | Rank | Active Plants | Aug 2026 Generation |
|---|---|---|---|
| Alabama | # 9 | 80 | 13,897.78 GWh |
| Alaska | # 48 | 146 | 672.99 GWh |
| Arizona | # 10 | 203 | 13,589.64 GWh |
| Arkansas | # 23 | 122 | 7,027.75 GWh |
| California | # 3 | 1,840 | 24,164.86 GWh |
| Colorado | # 30 | 321 | 5,322.30 GWh |
| Connecticut | # 34 | 180 | 4,400.98 GWh |
| Delaware | # 49 | 35 | 555.40 GWh |
| District of Columbia | # 51 | 19 | 21.71 GWh |
| Florida | # 2 | 345 | 28,185.93 GWh |
| Georgia | # 6 | 261 | 15,282.60 GWh |
| Hawaii | # 47 | 73 | 863.62 GWh |
| Idaho | # 43 | 152 | 1,754.56 GWh |
| Illinois | # 5 | 556 | 18,683.36 GWh |
| Indiana | # 17 | 226 | 9,970.06 GWh |
| Iowa | # 27 | 301 | 5,759.64 GWh |
| Kansas | # 26 | 191 | 6,368.18 GWh |
| Kentucky | # 21 | 63 | 7,221.26 GWh |
| Louisiana | # 14 | 93 | 10,670.45 GWh |
| Maine | # 45 | 250 | 1,285.31 GWh |
| Maryland | # 37 | 236 | 3,745.22 GWh |
| Massachusetts | # 41 | 679 | 1,958.59 GWh |
| Michigan | # 12 | 288 | 12,064.19 GWh |
| Minnesota | # 32 | 794 | 5,047.38 GWh |
| Mississippi | # 19 | 62 | 8,358.70 GWh |
| Missouri | # 22 | 134 | 7,125.71 GWh |
| State | Rank | Active Plants | Aug 2026 Generation |
|---|---|---|---|
| Montana | # 40 | 72 | 2,266.60 GWh |
| Nebraska | # 39 | 132 | 3,448.00 GWh |
| Nevada | # 29 | 117 | 5,523.31 GWh |
| New Hampshire | # 42 | 60 | 1,901.10 GWh |
| New Jersey | # 25 | 409 | 6,440.88 GWh |
| New Mexico | # 33 | 166 | 4,571.47 GWh |
| New York | # 11 | 1,087 | 13,130.21 GWh |
| North Carolina | # 8 | 921 | 14,263.55 GWh |
| North Dakota | # 38 | 62 | 3,579.89 GWh |
| Ohio | # 7 | 216 | 14,448.49 GWh |
| Oklahoma | # 13 | 153 | 10,965.38 GWh |
| Oregon | # 31 | 292 | 5,257.14 GWh |
| Pennsylvania | # 4 | 270 | 23,772.83 GWh |
| Rhode Island | # 46 | 108 | 924.31 GWh |
| South Carolina | # 16 | 214 | 9,989.71 GWh |
| South Dakota | # 44 | 53 | 1,486.65 GWh |
| Tennessee | # 18 | 101 | 8,430.26 GWh |
| Texas | # 1 | 1,069 | 65,726.98 GWh |
| Utah | # 36 | 131 | 4,074.82 GWh |
| Vermont | # 50 | 118 | 175.56 GWh |
| Virginia | # 15 | 255 | 10,241.54 GWh |
| Washington | # 20 | 137 | 8,189.60 GWh |
| West Virginia | # 28 | 41 | 5,593.74 GWh |
| Wisconsin | # 24 | 272 | 6,683.19 GWh |
| Wyoming | # 35 | 71 | 4,322.19 GWh |