Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Alamo Solar | Onward Energy | Oro Grande, CA | California Independent System Operator (CISO) | 49.3 GWh | Apr 2015 | Dec 2025 | Solar |
| RE Kent South, LLC | Onward Energy | Lemoore, CA | California Independent System Operator (CISO) | 35.7 GWh | Nov 2014 | Dec 2025 | Solar |
| Oakfield Wind Project | Onward Energy | City of Oakfield, ME | ISO New England (ISNE) | 329.4 GWh | Sep 2015 | Jun 2026 | Wind |
| APG Old Bayside | Onyx Asset Services Group | Aberdeen, MD | PJM Interconnection, LLC (PJM) | 3.0 GWh | Sep 2018 | Dec 2024 | Solar |
| APG New Chesapeake | Onyx Asset Services Group | Aberdeen, MD | PJM Interconnection, LLC (PJM) | 4.1 GWh | Sep 2018 | Dec 2024 | Solar |
| Sharon Springs | Onyx Asset Services Group | Sharon Springs, NY | New York Independent System Operator (NYIS) | 3.2 GWh | Apr 2018 | Dec 2025 | Solar |
| Winchendon Landfill Solar | Onyx Asset Services Group | Winchendon, MA | ISO New England (ISNE) | 2.8 GWh | Sep 2018 | Dec 2024 | Solar |
| Johnstown | Onyx Asset Services Group | Johnstown, NY | New York Independent System Operator (NYIS) | 3.4 GWh | Mar 2018 | Dec 2025 | Solar |
| Manchester Community College East | Onyx Asset Services Group | Manchester, CT | ISO New England (ISNE) | 1.5 GWh | Sep 2018 | Dec 2024 | Solar |
| Manchester Community College North | Onyx Asset Services Group | Great Path, CT | ISO New England (ISNE) | 1.5 GWh | Sep 2018 | Dec 2024 | 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) | 3.4 GWh | Mar 2018 | Dec 2024 | Solar |
| SeaWorld Aquatica | Onyx Asset Services Group | Chula Vista, CA | California Independent System Operator (CISO) | 1.9 GWh | Apr 2018 | Dec 2024 | 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 |
| Barrett Farm Solar - Phase I | Onyx Asset Services Group | Thompson, CT | ISO New England (ISNE) | 2.7 GWh | Sep 2017 | Dec 2024 | 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) | 1.9 GWh | Mar 2017 | Dec 2024 | Solar |
| Onyx - Pembroke Landfill Solar | Onyx Asset Services Group | Pembroke, MA | ISO New England (ISNE) | 3.5 GWh | Nov 2017 | Dec 2025 | Solar |
| Duanesburg | Onyx Asset Services Group | Duanesburg, NY | New York Independent System Operator (NYIS) | 3.1 GWh | Mar 2018 | 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 - 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 |
| Broadalbin | Onyx Asset Services Group | Broadalbin, NY | New York Independent System Operator (NYIS) | 2.9 GWh | Mar 2018 | 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 |
| North Troy | Onyx Asset Services Group | Troy, NY | New York Independent System Operator (NYIS) | 507.0 MWh | Sep 2024 | Dec 2024 | Solar |
| Bystronic Manufacturing | Onyx Asset Services Group | Hoffman Estates, IL | PJM Interconnection, LLC (PJM) | 515.0 MWh | Jul 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 |
| 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 |
| 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 |
| Ellington - 277 Sadds Mill | Onyx Asset Services Group | Ellington, CT | ISO New England (ISNE) | 3.6 GWh | Feb 2024 | 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 |
| Marathon Petroleum - Robinson Refinery | Onyx Asset Services Group | Robinson, IL | Midcontinent Independent System Operator, Inc. (MISO) | 5.4 GWh | May 2025 | Dec 2025 | Solar |
| Oaks HOA | Onyx Asset Services Group | Ione, CA | California Independent System Operator (CISO) | 1.7 GWh | Mar 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 |
| 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 |
| 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 |
| Pima Community College NW | Onyx Asset Services Group | Tucson, AZ | Tucson Electric Power (TEPC) | 3.0 GWh | Mar 2019 | Dec 2024 | Solar |
| Jersey City DWP | Onyx Asset Services Group | Jersey City, NJ | PJM Interconnection, LLC (PJM) | 1.2 GWh | Nov 2019 | Dec 2024 | Solar |
| Whitegrass No. 1 | Open Mountain Energy LLC. | Yerington, NV | Nevada Power Company (NEVP) | 17.0 GWh | Sep 2018 | Dec 2025 | Geothermal |
| Battleboro Farm | Oppidum Renewables USA, LLC | South Whitakers, NC | PJM Interconnection, LLC (PJM) | 7.7 GWh | Nov 2015 | Dec 2025 | Solar |
| Yadkinville Solar | Oppidum Renewables USA, LLC | Yadkinville, NC | Duke Energy Carolinas (DUK) | 4.0 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 |
| Salisbury Solar | Oppidum Renewables USA, LLC | Salisbury, NC | Duke Energy Carolinas (DUK) | 7.7 GWh | Jul 2018 | Dec 2025 | Solar |
| Wadesboro Solar | Oppidum Renewables USA, LLC | Wadesboro, NC | Duke Energy Progress East (CPLE) | 8.8 GWh | Nov 2017 | Dec 2025 | Solar |
| Tolson Solar | Oppidum Renewables USA, LLC | Tarboro, NC | PJM Interconnection, LLC (PJM) | 2.4 GWh | Nov 2015 | 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 |
| Progress Solar 1, LLC | Oppidum Renewables USA, LLC | Bunn, NC | Duke Energy Progress East (CPLE) | 4.6 GWh | Sep 2012 | 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 |
| Progress Solar II, LLC | Oppidum Renewables USA, LLC | Fairmont, NC | Duke Energy Progress East (CPLE) | 5.4 GWh | Oct 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 III, LLC | Oppidum Renewables USA, LLC | Maxton, NC | Duke Energy Progress East (CPLE) | 5.6 GWh | Oct 2012 | Dec 2025 | Solar |
| Chocowinity Solar LLC | Oppidum Renewables USA, LLC | Chocowinity, NC | Duke Energy Carolinas (DUK) | 4.8 GWh | Nov 2014 | 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 |
| Gates Solar LLC | Oppidum Renewables USA, LLC | Eure, NC | PJM Interconnection, LLC (PJM) | 6.4 GWh | Nov 2015 | Dec 2025 | Solar |
| Rockwell Solar LLC | Oppidum Renewables USA, LLC | Rockwell, NC | Duke Energy Carolinas (DUK) | 4.1 GWh | Nov 2014 | Dec 2025 | Solar |
| OR Solar 2, LLC | OR Solar 2, LLC | Eagle Point, OR | PacifiCorp West (PACW) | 20.7 GWh | Sep 2020 | Dec 2025 | 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% |
| Orange Grove | Orange Grove | Jim Wells, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 298.1 GWh | May 2025 | Jun 2026 | Solar |
| Orange Grove Peaking Facility | Orange Grove Energy LP | Pala, CA | California Independent System Operator (CISO) | 9.1 GWh | May 2010 | Dec 2025 | Natural Gas |
| Second Imperial Geothermal | ORCAL Geothermal, Inc | Heber, CA | Imperial Irrigation District (IID) | 275.2 GWh | May 1993 | Dec 2025 | Geothermal |
| Heber Geothermal | ORCAL Geothermal, Inc | Heber, CA | Imperial Irrigation District (IID) | 376.3 GWh | May 1985 | Dec 2025 | Geothermal |
| Orchard Knob | Orchard Knob Solar LLC | Dallas, OR | PacifiCorp West (PACW) | 993.0 MWh | Dec 2024 | Nov 2025 | Solar |
| Orchard Ranch Solar | Orchard Ranch Solar, LLC | Kuna, ID | Idaho Power Company (IPCO) | 45.7 GWh | Feb 2017 | Jun 2026 | Solar |
| Orchard Windfarm 1, LLC | Orchard Windfarm, LLC | Lexington, OR | PacifiCorp West (PACW) | 18.6 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 Windfarm 4, LLC | Orchard Windfarm, LLC | Lexington, OR | PacifiCorp West (PACW) | 17.3 GWh | Nov 2020 | Dec 2025 | Wind |
| Oregon Clean Energy Center | Oregon Clean Energy Center | Oregon, OH | PJM Interconnection, LLC (PJM) | 5.8 TWh | Jun 2017 | Jun 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 State University Energy Center | Oregon State University | Corvallis, OR | Bonneville Power Administration (BPAT) | 33.7 GWh | May 2010 | Jun 2026 | Natural Gas |
| OES Biogas Power | Organic Energy Solutions, Inc. | San Bernardino, CA | California Independent System Operator (CISO) | 4.9 GWh | - | Dec 2024 | Other Biomass Gas |
| Oriana Solar LLC | Oriana Solar LLC | Victoria, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 315.7 GWh | Jul 2025 | Jun 2026 | Solar |
| Origin Wind | Origin Wind Energy LLC | Hennepin, OK | Southwest Power Pool (SWPP) | 295.7 GWh | Oct 2014 | Dec 2025 | Wind |
| Optimist | Origis Energy USA, Inc | West Point, MS | Tennessee Valley Authority (TVA) | 246.7 GWh | - | Jun 2026 | Solar : 99.8% |
| Walker Springs I | Origis Energy USA, Inc | Gainestown, AL | Southern Company Services, Inc. - Trans (SOCO) | 79.4 GWh | - | Jun 2026 | Solar |
| Walker Springs II | Origis Energy USA, Inc | Gainestown, AL | Southern Company Services, Inc. - Trans (SOCO) | 26.5 GWh | - | Jun 2026 | Solar |
| Whistling Duck I | Origis Energy USA, Inc | Williston, FL | Duke Energy Florida, Inc. (FPC) | 99.2 GWh | Nov 2025 | Jun 2026 | Solar |
| Rockhound D | Origis Energy USA, Inc | Odessa, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 4.7 GWh | - | Jun 2026 | Solar |
| Wheatland | Origis Energy USA, Inc | Wheatland, IN | Midcontinent Independent System Operator, Inc. (MISO) | 146.3 GWh | - | Jun 2026 | Solar |
| Rockhound C | Origis Energy USA, Inc | Odessa, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 12.3 GWh | - | Jun 2026 | Solar |
| Rockhound A | Origis Energy USA, Inc | Odessa, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 57.9 GWh | - | Jun 2026 | Solar |
| Swift Air Solar III | Origis Energy USA, Inc | Odessa, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 146.9 GWh | Oct 2025 | Jun 2026 | Solar |
| Swift Air Solar II | Origis Energy USA, Inc | Odessa, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 215.3 GWh | Oct 2025 | Jun 2026 | Solar |
| Swift Air Solar I | Origis Energy USA, Inc | Goldsmith, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 384.3 GWh | Mar 2025 | Jun 2026 | Solar |
| Escalante (NM) | Origis Energy USA, Inc | Grants, NM | Public Service Company of New Mexico (PNM) | 515.6 GWh | May 2024 | Jun 2026 | Solar |
| MA Solar Storage 1 Hybrid | Origis Energy USA, Inc | Sterling, MA | ISO New England (ISNE) | 1.2 GWh | Feb 2018 | Dec 2025 | Solar |
| Rice Creek | Origis Energy USA, Inc | Putnam, FL | Florida Power & Light Co. (FPL) | 176.4 GWh | Nov 2024 | Jun 2026 | Solar |
| Golden Triangle II | Origis Energy USA, Inc | St.Artesia, MS | Tennessee Valley Authority (TVA) | 333.3 GWh | Apr 2024 | Jun 2026 | Solar : 99.9% |
| Golden Triangle | Origis Energy USA, Inc | Lowndes, MS | Tennessee Valley Authority (TVA) | 456.4 GWh | Dec 2024 | Jun 2026 | Solar |
| Wing | Origis Energy USA, Inc | Wing, AL | Southern Company Services, Inc. - Trans (SOCO) | 169.5 GWh | Mar 2023 | Jun 2026 | Solar |
| Orion Community Solar | Orion Community Solar | St. Joseph, MN | Midcontinent Independent System Operator, Inc. (MISO) | 4.5 GWh | Dec 2016 | Dec 2025 | Solar |
| Camp Grove Wind Farm | Orion Energy Group LLC | Wyoming, IL | PJM Interconnection, LLC (PJM) | 406.1 GWh | Nov 2007 | Dec 2025 | Wind |
| Benton County Wind Farm | Orion Energy Group LLC | Earl Park, IN | Midcontinent Independent System Operator, Inc. (MISO) | 342.9 GWh | Apr 2008 | Dec 2025 | Wind |
| Ivanhoe Generation Facility | Orion Engineered Carbons | Franklin, LA | Midcontinent Independent System Operator, Inc. (MISO) | 72.2 GWh | Mar 2023 | Dec 2025 | Waste Heat |
Summary of Power Plants By State
Figures are based on June 2026 generation numbers.| State | Rank | Active Plants | Jun 2026 Generation |
|---|---|---|---|
| Alabama | # 9 | 77 | 12,594.28 GWh |
| Alaska | # 48 | 140 | 563.53 GWh |
| Arizona | # 11 | 199 | 11,138.97 GWh |
| Arkansas | # 21 | 117 | 6,425.86 GWh |
| California | # 4 | 1,744 | 17,197.11 GWh |
| Colorado | # 29 | 309 | 4,933.21 GWh |
| Connecticut | # 34 | 173 | 3,737.86 GWh |
| Delaware | # 49 | 35 | 376.53 GWh |
| District of Columbia | # 51 | 17 | 18.29 GWh |
| Florida | # 2 | 342 | 26,309.59 GWh |
| Georgia | # 7 | 250 | 13,880.75 GWh |
| Hawaii | # 47 | 70 | 767.91 GWh |
| Idaho | # 41 | 152 | 2,099.32 GWh |
| Illinois | # 5 | 494 | 16,673.62 GWh |
| Indiana | # 18 | 222 | 8,401.10 GWh |
| Iowa | # 23 | 297 | 6,139.01 GWh |
| Kansas | # 25 | 188 | 5,758.25 GWh |
| Kentucky | # 22 | 61 | 6,181.49 GWh |
| Louisiana | # 15 | 90 | 9,779.36 GWh |
| Maine | # 45 | 242 | 1,215.46 GWh |
| Maryland | # 36 | 228 | 3,591.08 GWh |
| Massachusetts | # 44 | 666 | 1,410.23 GWh |
| Michigan | # 14 | 276 | 9,804.74 GWh |
| Minnesota | # 30 | 790 | 4,889.70 GWh |
| Mississippi | # 20 | 60 | 6,899.16 GWh |
| Missouri | # 24 | 129 | 6,066.44 GWh |
| State | Rank | Active Plants | Jun 2026 Generation |
|---|---|---|---|
| Montana | # 40 | 71 | 2,225.73 GWh |
| Nebraska | # 39 | 126 | 3,184.64 GWh |
| Nevada | # 31 | 117 | 4,654.59 GWh |
| New Hampshire | # 43 | 57 | 1,659.52 GWh |
| New Jersey | # 28 | 398 | 5,055.63 GWh |
| New Mexico | # 33 | 159 | 4,408.01 GWh |
| New York | # 10 | 1,064 | 11,564.60 GWh |
| North Carolina | # 8 | 913 | 12,773.20 GWh |
| North Dakota | # 35 | 59 | 3,713.80 GWh |
| Ohio | # 6 | 213 | 13,969.06 GWh |
| Oklahoma | # 17 | 144 | 9,156.03 GWh |
| Oregon | # 27 | 281 | 5,322.08 GWh |
| Pennsylvania | # 3 | 259 | 21,018.65 GWh |
| Rhode Island | # 46 | 107 | 854.92 GWh |
| South Carolina | # 16 | 209 | 9,442.42 GWh |
| South Dakota | # 42 | 53 | 1,803.66 GWh |
| Tennessee | # 19 | 99 | 7,036.17 GWh |
| Texas | # 1 | 1,028 | 57,844.67 GWh |
| Utah | # 38 | 129 | 3,196.09 GWh |
| Vermont | # 50 | 118 | 180.62 GWh |
| Virginia | # 12 | 250 | 10,352.13 GWh |
| Washington | # 13 | 135 | 10,051.77 GWh |
| West Virginia | # 32 | 41 | 4,489.44 GWh |
| Wisconsin | # 26 | 266 | 5,542.48 GWh |
| Wyoming | # 37 | 69 | 3,318.53 GWh |