Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Unalakleet | Unalakleet Valley Elec Coop | Unalakleet, AK | 3.7 GWh | Apr 2010 | Dec 2024 | Distillate Fuel Oil | |
| Unisea G 2 | Unisea Inc | Dutch Harbor, AK | 27.8 GWh | Jul 1990 | Dec 2025 | Distillate Fuel Oil | |
| Upper Kalskag | Alaska Village Elec Coop, Inc | Upper Kalskag, AK | 1.5 GWh | Nov 2004 | Dec 2025 | Distillate Fuel Oil | |
| University of Alaska Fairbanks | University of Alaska | Fairbanks, AK | 53.3 GWh | Dec 1963 | May 2026 | Subbituminous Coal : 92.8% Distillate Fuel Oil : 5.9% Natural Gas : 1.3% | |
| Union HS at Casa Grande | Luminace Solar Holding, LLC | Casa Grande, AZ | Arizona Public Service Company (AZPS) | 2.6 GWh | Nov 2012 | Dec 2025 | Solar |
| Unionville | Associated Electric Coop, Inc | Unionville, MO | Associated Electric Cooperative, Inc. (AECI) | 34.0 MWh | May 1976 | Dec 2025 | Distillate Fuel Oil |
| Unionville City of | City of Unionville - (MO) | Unionville, MO | Associated Electric Cooperative, Inc. (AECI) | 1.0 MWh | Dec 1934 | Dec 2025 | Distillate Fuel Oil |
| Upriver Dam Hydro Plant | City of Spokane - (WA) | Spokane, WA | Avista Corporation (AVA) | 39.9 GWh | Dec 1935 | Dec 2025 | Water |
| Upper Falls | Avista Corp | Spokane, WA | Avista Corporation (AVA) | 42.0 GWh | Mar 1922 | Dec 2025 | Water |
| US GSA - Sacramento | Tesla Inc. | Sacramento, CA | Balancing Authority of Northern California (BANC) | 1.5 GWh | Feb 2018 | Dec 2025 | Solar |
| Union Valley | Sacramento Municipal Util Dist | Fresh Pond, CA | Balancing Authority of Northern California (BANC) | 89.1 GWh | Sep 1963 | Dec 2025 | Water |
| Univ of Oregon Central Power Station | University of Oregon | Eugene, OR | Bonneville Power Administration (BPAT) | 567.1 MWh | Aug 2009 | Dec 2025 | Natural Gas : 72.4% Distillate Fuel Oil : 27.6% |
| University of California Santa Cruz | University of California Santa Cruz | Santa Cruz, CA | California Independent System Operator (CISO) | 33.5 GWh | Aug 2013 | Dec 2025 | Natural Gas : 91.4% Solar : 8.6% |
| USPS PV | Altus Power America Management, LLC | Los Angeles, CA | California Independent System Operator (CISO) | 10.9 GWh | Jun 2017 | Dec 2025 | Solar |
| University of California San Diego Hybri | University of California San Diego | La Jolla, CA | California Independent System Operator (CISO) | 232.1 GWh | Jun 2001 | May 2026 | Natural Gas |
| Univ of San Francisco Cogen | University of San Francisco | San Francisco, CA | California Independent System Operator (CISO) | 5.2 GWh | Aug 1987 | Dec 2024 | Natural Gas |
| Univ of California San Diego Solar | University of California San Diego | La Jolla, CA | California Independent System Operator (CISO) | 3.8 GWh | Nov 2008 | Dec 2025 | Solar |
| University of San Diego | Bloom Energy 2009 PPA | San Diego, CA | California Independent System Operator (CISO) | 7.7 GWh | Nov 2016 | Dec 2025 | Natural Gas |
| US-TOPCO (Soccer Center) | Tesla Inc. | Lancaster, CA | California Independent System Operator (CISO) | 3.5 GWh | Nov 2016 | Dec 2025 | Solar |
| US Borax | U S Borax Inc | Boron, CA | California Independent System Operator (CISO) | 255.4 GWh | Jun 1984 | May 2026 | Natural Gas |
| UC Davis South Campus | Solar Star California XXXII, LLC | Davis, CA | California Independent System Operator (CISO) | 11.9 GWh | Feb 2015 | Dec 2025 | Solar |
| UC Merced Solar Hybrid | MN8 Energy LLC | Merced, CA | California Independent System Operator (CISO) | 8.0 GWh | Nov 2018 | Dec 2025 | Solar |
| UC Riverside Lots 30 & 32 | MN8 Energy LLC | Riverside, CA | California Independent System Operator (CISO) | 6.8 GWh | Nov 2017 | Dec 2025 | Solar |
| UCI Facilities Management Central Plant | University of California Irvine | Irvine, CA | California Independent System Operator (CISO) | 113.6 GWh | Jun 2007 | May 2026 | Natural Gas |
| University of the Pacific | The Greater Light USA LLC | Stockton, CA | California Independent System Operator (CISO) | 6.5 GWh | Apr 2022 | Dec 2024 | Solar |
| Urquhart | Dominion Energy South Carolina, Inc | Beech Island, SC | Dominion Energy South Carolina, Inc. (SCEG) | 1.9 TWh | Nov 1953 | May 2026 | Natural Gas : 98.8% Distillate Fuel Oil : 1.2% |
| Upper Pacolet Hydro | Lockhart Power Co | Pacolet, SC | Duke Energy Carolinas (DUK) | 4.8 GWh | Jan 2013 | Dec 2025 | Water |
| Union Renewable Energy Facility | Lockhart Power Co | Enoree, SC | Duke Energy Carolinas (DUK) | 15.7 GWh | Dec 2014 | Dec 2025 | Landfill Gas |
| Univ of NC Chapel Hill Cogen Facility | University of North Carolina | Chapel Hill, NC | Duke Energy Carolinas (DUK) | 56.7 GWh | Jun 1991 | Apr 2026 | Natural Gas : 58.2% Bituminous Coal : 41.8% |
| University of Florida | Duke Energy Florida, LLC | Gainesville, FL | Duke Energy Florida, Inc. (FPC) | 388.2 GWh | Dec 1993 | Dec 2025 | Natural Gas |
| Upchurch Solar Center LLC | Cypress Creek Renewables | Elm City, NC | Duke Energy Progress East (CPLE) | 8.2 GWh | Nov 2014 | Dec 2025 | Solar |
| Uwharrie Mountain Renewable | Uwharrie Mountain Renewable Energy, LLC | Mt. Gilead, NC | Duke Energy Progress East (CPLE) | 32.4 GWh | Jun 2014 | Dec 2025 | Landfill Gas |
| Upton County Solar | RWE Clean Energy | McCamey, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 275.4 GWh | Nov 2017 | May 2026 | Solar |
| Union Carbide Seadrift Cogen | Union Carbide Corp-Seadrift | Seadrift, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 563.3 GWh | Dec 1963 | Dec 2025 | Natural Gas : 94.2% Other Gas : 5.8% |
| Union Springs Solar Center | Florida Power & Light Co | Lake Butler, FL | Florida Power & Light Co. (FPL) | 148.1 GWh | Nov 2020 | May 2026 | Solar |
| Upper Malad | Idaho Power Co | Hagerman, ID | Idaho Power Company (IPCO) | 55.3 GWh | May 1948 | Dec 2025 | Water |
| Upper Salmon B | Idaho Power Co | Hagerman, ID | Idaho Power Company (IPCO) | 89.1 GWh | Aug 1947 | Dec 2025 | Water |
| Upper Salmon A | Idaho Power Co | Hagerman, ID | Idaho Power Company (IPCO) | 92.6 GWh | Aug 1937 | Dec 2025 | Water |
| USG 1 | ZGlobal Inc | El Centro, CA | Imperial Irrigation District (IID) | 3.0 GWh | Mar 2014 | Dec 2024 | Solar |
| USG 2 | ZGlobal Inc | El Centro, CA | Imperial Irrigation District (IID) | 2.0 GWh | Nov 2015 | Dec 2024 | Solar |
| Univ of Massachusetts Medical Center | University of Massachusetts Medical | Worcester, MA | ISO New England (ISNE) | 63.3 GWh | Mar 1974 | Dec 2025 | Natural Gas : 99.3% Distillate Fuel Oil : 0.6% |
| UDR Glastonbury Fuel Cell | UIL Distributed Resources, LLC | Glastonbury, CT | ISO New England (ISNE) | 15.8 GWh | Jan 2016 | Dec 2025 | Natural Gas |
| Unity Solar | Madison Energy Holdings LLC | Unity, ME | ISO New England (ISNE) | 6.7 GWh | Nov 2021 | Dec 2025 | Solar |
| UI RCP Bridgeport Seaside | United Illuminating Co | Bridgeport, CT | ISO New England (ISNE) | 17.5 GWh | Oct 2015 | May 2026 | Natural Gas : 84.7% Solar : 15.3% |
| UMass PV Lot 22 | RWE Clean Energy | Amherst, MA | ISO New England (ISNE) | 2.7 GWh | Aug 2022 | Dec 2025 | Solar |
| UMass Boston | MSS Energy Holdings, LLC (d.b.a. Calibrant Energy) | Dorchester, MA | ISO New England (ISNE) | 1.0 GWh | Dec 1971 | Dec 2025 | Solar |
| UMASS | RWE Clean Energy | Amherst, MA | ISO New England (ISNE) | 5.2 GWh | Sep 2016 | Dec 2025 | Solar |
| Upper Blackstone (MA) Treasure Valley | Nexamp Treasure Valley Solar, LLC | Rutland, MA | ISO New England (ISNE) | 6.2 GWh | Jun 2014 | Dec 2025 | Solar |
| Upper Barker | KEI (Maine) Power Management (III) LLC | Auburn, ME | ISO New England (ISNE) | 4.0 GWh | Apr 1987 | Dec 2025 | Water |
| Upland | Greenbacker Renewable Energy Corporation | Plympton, MA | ISO New England (ISNE) | 3.3 GWh | May 2025 | Dec 2025 | Solar |
| UI RCP New Haven Fuel Cell | United Illuminating Co | New Haven, CT | ISO New England (ISNE) | 20.5 GWh | Jul 2015 | May 2026 | Natural Gas |
| University Solar, LLC | AES Distributed Energy | West Greenwich, RI | ISO New England (ISNE) | 27.5 GWh | Nov 2019 | May 2026 | Solar |
| UI RCP Woodbridge FC | United Illuminating Co | Woodbridge, CT | ISO New England (ISNE) | 16.7 GWh | Nov 2016 | Dec 2025 | Natural Gas |
| UCONN Cogen Facility | University of Connecticut | Storrs, CT | ISO New England (ISNE) | 112.1 GWh | Feb 2006 | May 2026 | Natural Gas : 95.2% Distillate Fuel Oil : 4.8% |
| UB Fuel Cell | UB Fuel Cell | Bridgeport, CT | ISO New England (ISNE) | 10.1 GWh | Mar 2015 | Dec 2025 | Natural Gas |
| UNH 7.9 MW Plant | Emcor Energy Services | Durham, NH | ISO New England (ISNE) | 53.3 GWh | Aug 2006 | May 2026 | Landfill Gas : 55.5% Natural Gas : 42.0% Distillate Fuel Oil : 2.5% |
| Upton Community Solar | Upton Solar, LLC | Upton, MA | ISO New England (ISNE) | 3.4 GWh | Aug 2017 | Dec 2025 | Solar |
| Upper Gorge | Los Angeles Department of Water & Power | Bishop, CA | Los Angeles Department of Water and Power (LDWP) | 51.9 GWh | May 1953 | Dec 2025 | Water |
| UCLA So Campus Cogen Project | University of California-LA | Los Angeles, CA | Los Angeles Department of Water and Power (LDWP) | 235.0 GWh | Sep 1993 | May 2026 | Natural Gas |
| USS Hubers Solar LLC CSG | United States Solar Corporation | Northfield, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.1 GWh | Dec 2020 | Dec 2025 | Solar |
| USS Flower Solar LLC CSG | Standard Solar | Nicollet, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.1 GWh | Aug 2020 | Dec 2025 | Solar |
| USS Haven Solar LLC CSG | Standard Solar | St. Cloud, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.0 GWh | Oct 2019 | Dec 2025 | Solar |
| USS Mesa Solar LLC | United States Solar Corporation | Danube, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.1 GWh | Dec 2022 | Dec 2025 | Solar |
| USS Mayhew Solar LLC CSG | Standard Solar | Sauk Rapids, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.1 GWh | May 2020 | Dec 2025 | Solar |
| USS Horne North Solar LLC CSG | Standard Solar | Felton, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.0 GWh | Sep 2020 | Dec 2025 | Solar |
| USS Maverick Solar LLC (CSG) | United States Solar Corporation | Good Thunder, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.2 GWh | Nov 2023 | Dec 2025 | Solar |
| USS Martha Solar (CSG) | United States Solar Corporation | Hamburg, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.0 GWh | Dec 2023 | Dec 2025 | Solar |
| USS Horne South Solar LLC CSG | Standard Solar | Felton, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.0 GWh | Sep 2020 | Dec 2025 | Solar |
| USS Midtown Solar LLC CSG | Standard Solar | Melrose, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.1 GWh | Nov 2019 | Dec 2025 | Solar |
| USS Lake Patterson Solar CSG | Standard Solar | Cologne, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.4 GWh | Jul 2019 | Dec 2025 | Solar |
| USS Kass Solar LLC | Standard Solar | Garvin, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.2 GWh | Dec 2020 | Dec 2025 | Solar |
| USS KVPV Solar LLC CSG | Standard Solar | Fulton, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.9 GWh | Sep 2020 | Dec 2025 | Solar |
| USS Itasca Clean Energy Solar LLC | United States Solar Corporation | Grand Rapids, MN | Midcontinent Independent System Operator, Inc. (MISO) | 3.8 GWh | Jul 2022 | Dec 2025 | Solar |
| USS Jayhawk Solar LLC (CSG) | United States Solar Corporation | Mankato, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.0 GWh | Nov 2023 | Dec 2025 | Solar |
| USS JJ Clay Solar LLC CSG | Standard Solar | Felton, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.9 GWh | Sep 2020 | Dec 2025 | Solar |
| USS JJ Solar CSG | United States Solar Corporation | Sauk Rapids, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.9 GWh | Dec 2018 | Dec 2025 | Solar |
| USS Kasch Solar CSG | United States Solar Corporation | Sauk Rapids, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.0 GWh | Sep 2018 | Dec 2025 | Solar |
| USS Kost Trail Solar CSG | Standard Solar | North Branch, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.9 GWh | May 2019 | Dec 2025 | Solar |
| USS King 2 CSG | Standard Solar | Waconia, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.3 GWh | Jul 2019 | Dec 2025 | Solar |
| USS Brockway Solar CSG | United States Solar Corporation | Sartell, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.8 GWh | Dec 2018 | Dec 2025 | Solar |
| USS Dressen Family Solar LLC | United States Solar Corporation | Mayer, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.2 GWh | Jun 2023 | Dec 2025 | Solar |
| USS Peach Solar LLC | United States Solar Corporation | Mankato, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.0 GWh | Jun 2022 | Dec 2025 | Solar |
| USS Origami Solar | USS Origami Solar LLC | Fulton, IL | Midcontinent Independent System Operator, Inc. (MISO) | 1.1 GWh | Sep 2025 | Dec 2025 | Solar |
| UW Kegonsa Customer Hosted Solar | Wisconsin Power & Light Co | Stoughton, WI | Midcontinent Independent System Operator, Inc. (MISO) | 1.6 GWh | Apr 2025 | Dec 2025 | Solar |
| UW Parkside | Wisconsin Electric Power Co | Kenosha, WI | Midcontinent Independent System Operator, Inc. (MISO) | 4.0 GWh | Oct 2020 | Dec 2025 | Solar |
| USS Norelius Solar CSG | United States Solar Corporation | North Branch, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.0 GWh | Dec 2018 | Dec 2025 | Solar |
| USS All In Solar LLC CSG | Standard Solar | Hartland, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.3 GWh | Sep 2020 | Dec 2025 | Solar |
| USS B&B Solar LLC CSG | Standard Solar | Morgan, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.0 GWh | Aug 2020 | Dec 2025 | Solar |
| USS Big Lake 1 Solar CSG | United States Solar Corporation | Big Lake, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.0 GWh | Nov 2018 | Dec 2025 | Solar |
| USS Bluff Country Solar CSG | United States Solar Corporation | Altura, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.0 GWh | Nov 2020 | Dec 2025 | Solar |
| USS Cosmo Solar LLC (CSG) | United States Solar Corporation | Danube, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.2 GWh | Nov 2023 | Dec 2025 | Solar |
| USS Buckaroo Solar LLC CSG | Standard Solar | Glydon, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.9 GWh | Sep 2020 | Dec 2025 | Solar |
| USS Bush Solar LLC CSG | United States Solar Corporation | Owatonna, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.1 GWh | Sep 2020 | Dec 2025 | Solar |
| USS Catfish Solar LLC | United States Solar Corporation | Franklin, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.0 GWh | Dec 2022 | Dec 2025 | Solar |
| USS Cattail Solar | USS Cattail Solar LLC | Fulton, IL | Midcontinent Independent System Operator, Inc. (MISO) | 1.3 GWh | Jul 2025 | Dec 2025 | Solar |
| USS Centerfield Solar CSG | Standard Solar | Webster, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.1 GWh | Oct 2019 | Dec 2025 | Solar |
| USS Chariot Solar LLC | United States Solar Corporation | Danube, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.1 GWh | Dec 2020 | Dec 2025 | Solar |
| USS Cheyenne Solar LLC CSG | Standard Solar | Chisago City, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.9 GWh | Nov 2019 | Dec 2025 | Solar |
| USS Christoffer Solar LLC CSG | Standard Solar | Montevideo, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.0 GWh | Aug 2020 | Dec 2025 | Solar |
| USS Nillie Corn Solar CSG | United States Solar Corporation | North Branch, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.9 GWh | Nov 2018 | Dec 2025 | Solar |
Summary of Power Plants By State
Figures are based on May 2026 generation numbers.| State | Rank | Active Plants | May 2026 Generation |
|---|---|---|---|
| Alabama | # 8 | 77 | 11,823.92 GWh |
| Alaska | # 48 | 140 | 513.29 GWh |
| Arizona | # 14 | 196 | 9,091.99 GWh |
| Arkansas | # 25 | 117 | 4,873.33 GWh |
| California | # 4 | 1,740 | 15,360.54 GWh |
| Colorado | # 31 | 308 | 4,156.36 GWh |
| Connecticut | # 35 | 173 | 3,391.33 GWh |
| Delaware | # 49 | 35 | 236.45 GWh |
| District of Columbia | # 51 | 17 | 14.46 GWh |
| Florida | # 2 | 342 | 25,093.89 GWh |
| Georgia | # 6 | 250 | 12,138.02 GWh |
| Hawaii | # 46 | 70 | 762.50 GWh |
| Idaho | # 41 | 151 | 1,963.84 GWh |
| Illinois | # 5 | 494 | 14,816.74 GWh |
| Indiana | # 15 | 222 | 7,662.28 GWh |
| Iowa | # 21 | 297 | 5,720.38 GWh |
| Kansas | # 24 | 188 | 5,118.39 GWh |
| Kentucky | # 23 | 61 | 5,471.28 GWh |
| Louisiana | # 13 | 90 | 9,131.60 GWh |
| Maine | # 44 | 242 | 1,130.78 GWh |
| Maryland | # 37 | 228 | 3,103.37 GWh |
| Massachusetts | # 45 | 666 | 1,073.93 GWh |
| Michigan | # 11 | 276 | 9,774.25 GWh |
| Minnesota | # 28 | 790 | 4,567.82 GWh |
| Mississippi | # 20 | 60 | 6,404.61 GWh |
| Missouri | # 22 | 129 | 5,701.36 GWh |
| State | Rank | Active Plants | May 2026 Generation |
|---|---|---|---|
| Montana | # 40 | 71 | 2,053.07 GWh |
| Nebraska | # 36 | 126 | 3,193.89 GWh |
| Nevada | # 33 | 117 | 3,848.29 GWh |
| New Hampshire | # 43 | 57 | 1,198.65 GWh |
| New Jersey | # 30 | 398 | 4,274.91 GWh |
| New Mexico | # 29 | 158 | 4,513.39 GWh |
| New York | # 10 | 1,064 | 10,643.78 GWh |
| North Carolina | # 9 | 913 | 11,481.42 GWh |
| North Dakota | # 34 | 59 | 3,601.34 GWh |
| Ohio | # 7 | 211 | 11,886.21 GWh |
| Oklahoma | # 17 | 144 | 7,547.66 GWh |
| Oregon | # 27 | 281 | 4,575.23 GWh |
| Pennsylvania | # 3 | 258 | 18,234.28 GWh |
| Rhode Island | # 47 | 107 | 580.94 GWh |
| South Carolina | # 16 | 209 | 7,632.32 GWh |
| South Dakota | # 42 | 53 | 1,802.78 GWh |
| Tennessee | # 19 | 99 | 6,454.94 GWh |
| Texas | # 1 | 1,019 | 50,690.02 GWh |
| Utah | # 39 | 128 | 2,809.26 GWh |
| Vermont | # 50 | 118 | 186.37 GWh |
| Virginia | # 18 | 250 | 7,445.56 GWh |
| Washington | # 12 | 134 | 9,231.20 GWh |
| West Virginia | # 32 | 41 | 4,142.41 GWh |
| Wisconsin | # 26 | 266 | 4,582.07 GWh |
| Wyoming | # 38 | 69 | 2,983.81 GWh |