Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Mililani South Solar Farm | Mililani I Solar LLC | Mililani, HI | 56.7 GWh | Jun 2022 | Aug 2026 | Solar | |
| Mauka FIT One | Valta Energy | Kahuku, HI | 4.5 GWh | Sep 2020 | Dec 2025 | Solar | |
| Mauna Loa Macadamia Nut | Macadamia Nut Road Solar Project 2019 | Keaau, HI | (HECO) | 1.4 GWh | Nov 2021 | Dec 2025 | Solar |
| Maalaea | Maui Electric Co Ltd | Kihei, HI | 642.2 GWh | Nov 1971 | Aug 2026 | Distillate Fuel Oil | |
| McGrath | McGrath Light & Power Co | McGrath, AK | 1.8 GWh | Nov 1988 | Dec 2025 | Distillate Fuel Oil | |
| Marshall | Alaska Village Elec Coop, Inc | Marshall, AK | 1.7 GWh | May 1994 | Dec 2025 | Distillate Fuel Oil | |
| Miki Basin | Maui Electric Co Ltd | Lanai City, HI | 35.7 GWh | Mar 1990 | Dec 2025 | Distillate Fuel Oil | |
| ME Novel Lighthouse - Huggard Ave Solar | Luminace Sunbeam Development Holdings, LLC | Limestone, ME | (NA) | 3.9 GWh | Jan 2024 | Dec 2025 | Solar |
| Mars Hill Wind Farm Project | Evergreen Wind, LLC | Mars Hill, ME | (NBSO) | 128.3 GWh | Feb 2007 | Dec 2025 | Wind |
| Mesquite Solar 5, LLC | RWE Clean Energy | Tonopah, AZ | Arizona Public Service Company (AZPS) | 121.2 GWh | Jun 2023 | Aug 2026 | Solar |
| Maricopa Solar | Maricopa Solar | Tonopah, AZ | Arizona Public Service Company (AZPS) | 92.6 GWh | - | Aug 2026 | Solar |
| Macys Goodyear | Macys Corporate Services, Inc | Goodyear, AZ | Arizona Public Service Company (AZPS) | 3.1 GWh | Nov 2010 | Dec 2024 | Solar |
| Maple City | Altus Power America Management, LLC | Osage Township, IA | Associated Electric Cooperative, Inc. (AECI) | 3.0 GWh | Nov 2022 | Dec 2025 | Solar |
| Macon Energy Center | City of Macon - (MO) | Macon, MO | Associated Electric Cooperative, Inc. (AECI) | 88.2 GWh | Apr 2003 | Dec 2025 | Natural Gas |
| Mt Pleasant | City of Mt Pleasant - (IA) | Mt Pleasant, IA | Associated Electric Cooperative, Inc. (AECI) | 802.0 MWh | Jan 2002 | Dec 2025 | Distillate Fuel Oil |
| Montague Solar | Avangrid Power LLC | Arlington, OR | Avangrid Renewables, LLC (AVRN) | 278.7 GWh | Mar 2023 | Aug 2026 | Solar |
| Montague Wind Power Facility LLC | Avangrid Power LLC | Arlington, OR | Avangrid Renewables, LLC (AVRN) | 485.4 GWh | Oct 2019 | Aug 2026 | Wind |
| Monroe Street | Avista Corp | Spokane, WA | Avista Corporation (AVA) | 87.5 GWh | Nov 1992 | Dec 2025 | Water |
| Main Canal Headworks | Columbia Basin Hydropower | Coulee City, WA | Avista Corporation (AVA) | 105.2 GWh | Dec 1986 | Oct 2025 | Water |
| Meyers Falls | Hydro Technology Systems Inc | Kettle Falls, WA | Avista Corporation (AVA) | 8.7 GWh | May 1915 | Dec 2025 | Water |
| McClure | Modesto Irrigation District | Modesto, CA | Balancing Authority of Northern California (BANC) | 1.6 GWh | Jun 1980 | Dec 2025 | Natural Gas : 71.4% Distillate Fuel Oil : 28.6% |
| McClellan (CA) | Sacramento Municipal Util Dist | Sacramento, CA | Balancing Authority of Northern California (BANC) | 1.2 GWh | Feb 1986 | Dec 2025 | Natural Gas |
| Middle Fork Irrigation District | Middle Fork Irrigation Dist | Parkdale, OR | Bonneville Power Administration (BPAT) | 20.0 GWh | Feb 1986 | Dec 2025 | Water |
| Marble Solar LLC (CSG) | SolRiver Capital LLC | Albany, OR | Bonneville Power Administration (BPAT) | 4.9 GWh | Nov 2024 | Dec 2025 | Solar |
| McNary Dam Fish Attraction Project | Northern Wasco County PUD - (OR) | Plymouth, WA | Bonneville Power Administration (BPAT) | 72.5 GWh | Oct 1997 | Dec 2025 | Water |
| McNary | USACE Northwestern Division | Umatilla, OR | Bonneville Power Administration (BPAT) | 4.0 TWh | Nov 1953 | Dec 2025 | Water |
| Minidoka | U S Bureau of Reclamation | Rupert, ID | Bonneville Power Administration (BPAT) | 98.8 GWh | May 1927 | Dec 2025 | Water |
| Moyie Springs | City of Bonners Ferry (ID) | Moyie Springs, ID | Bonneville Power Administration (BPAT) | 21.4 GWh | Nov 1921 | Dec 2025 | Water |
| Monticello Dam | Solano Irrigation District | Winters, CA | California Independent System Operator (CISO) | 40.7 GWh | May 1983 | Dec 2025 | Water |
| Mountain View Ind Park 1-sline001 | Prologis Logistics Services Incorporated | Fontana, CA | California Independent System Operator (CISO) | 371.0 MWh | Aug 2023 | Dec 2025 | Solar |
| Mountain View III | Avangrid Power LLC | North Palm Springs, CA | California Independent System Operator (CISO) | 80.7 GWh | Nov 2003 | Dec 2025 | Wind |
| Mountain View I & II | AES Distributed Energy | North Palm Springs, CA | California Independent System Operator (CISO) | 246.8 GWh | May 2001 | Aug 2026 | Wind |
| Munro Valley Solar | Ecos Energy LLC | Olancha, CA | California Independent System Operator (CISO) | 8.7 GWh | Sep 2016 | Dec 2025 | Solar |
| Moonlight Packing - Phase 2 | CalCom Energy | Reedley, CA | California Independent System Operator (CISO) | 2.7 GWh | May 2019 | Dec 2025 | Solar |
| Murphys | Utica Water & Power Authority | Murphys, CA | California Independent System Operator (CISO) | 14.8 GWh | Feb 1954 | Dec 2025 | Water |
| Muck Valley Hydroelectric | Malacha Hydro Limited Partnership | NA, CA | California Independent System Operator (CISO) | 89.8 GWh | Nov 1988 | Dec 2025 | Water |
| Montgomery Creek Hydro | Central Rivers Power US, LLC | Montgomery Creek, CA | California Independent System Operator (CISO) | 9.2 GWh | Dec 1986 | Dec 2025 | Water |
| Mount Signal Solar Farm II | MN8 Energy LLC | Calexico, CA | California Independent System Operator (CISO) | 355.0 GWh | Dec 2019 | Aug 2026 | Solar |
| Mount Signal Solar Farm V | Imperial Valley Solar 3, LLC | Calexico, CA | California Independent System Operator (CISO) | 631.7 GWh | Oct 2018 | Aug 2026 | Solar |
| Montezuma Wind II | NextEra Energy Montezuma Wind II, LLC | Birds Landing, CA | California Independent System Operator (CISO) | 195.8 GWh | Dec 2011 | Dec 2025 | Wind |
| Monterey One Water | Monterey One Water | Marina, CA | California Independent System Operator (CISO) | 8.4 GWh | Jul 1988 | Dec 2025 | Other Biomass Gas : 78.5% Natural Gas : 21.5% |
| Monterey Regional Water Pollution Contro | Tesla Inc. | Marina, CA | California Independent System Operator (CISO) | 1.1 GWh | Nov 2010 | Dec 2025 | Solar |
| Mountain View IV | AES Distributed Energy | North Palm Springs, CA | California Independent System Operator (CISO) | 172.7 GWh | Jan 2012 | Dec 2025 | Wind |
| Mustang Two | RE Mustang Two LLC | Lemoore, CA | California Independent System Operator (CISO) | 372.7 GWh | Oct 2020 | Apr 2026 | Solar |
| Morgan Lancaster 1 | Terraform Arcadia | Lancaster, CA | California Independent System Operator (CISO) | 818.0 MWh | Aug 2015 | Dec 2025 | Solar |
| Morelos del Sol | Southern Power Co | Lost Hills, CA | California Independent System Operator (CISO) | 31.2 GWh | Oct 2015 | Dec 2025 | Solar |
| Municipal Cogen Plant | Palm Springs, City of - (CA) | Palm Springs, CA | California Independent System Operator (CISO) | 7.5 GWh | Apr 1985 | Aug 2026 | Natural Gas |
| Mountainview Generating Station | Southern California Edison Co | Redlands, CA | California Independent System Operator (CISO) | 1.2 TWh | Nov 2005 | Aug 2026 | Natural Gas |
| Mustang Hills LLC | Mustang Hills, LLC (Longroad) | Mojave, CA | California Independent System Operator (CISO) | 267.1 GWh | Apr 2012 | Dec 2025 | Wind |
| McKittrick Limited | WCAC Operating Company | Bakersfield, CA | California Independent System Operator (CISO) | 3.5 GWh | Sep 1991 | Aug 2026 | Natural Gas |
| Mammoth G3 | Ormat Nevada Inc | Mammoth Lakes, CA | California Independent System Operator (CISO) | 75.3 GWh | Nov 1990 | Dec 2025 | Geothermal |
| Madelyn Solar, LLC | CD US Solar PO 3, LLC | Silver Lake, CA | California Independent System Operator (CISO) | 2.3 GWh | Nov 2014 | Dec 2025 | Solar |
| Meridian Vineyards | CVI CleanCapital Solar 1 LLC | Paso Robles, CA | California Independent System Operator (CISO) | 1.1 GWh | Nov 2010 | Dec 2025 | Solar |
| Merced Solar LLC | Ecos Energy LLC | Merced, CA | California Independent System Operator (CISO) | 3.9 GWh | Nov 2014 | Dec 2025 | Solar |
| Madera 1 PV | ZGlobal Inc | Madera, CA | California Independent System Operator (CISO) | 3.2 GWh | Nov 2017 | Dec 2025 | Solar |
| Mesquite Solar 1 | RWE Clean Energy | Tonopah, AZ | California Independent System Operator (CISO) | 392.2 GWh | Oct 2011 | Dec 2025 | Solar |
| Merced Pipeline | Maas Energy Works | Merced, CA | California Independent System Operator (CISO) | 1.3 GWh | Jun 2023 | Dec 2025 | Solar |
| Madera Community Hospital | CleanCapital Holdings | Madera, CA | California Independent System Operator (CISO) | 1.7 GWh | Sep 2011 | Dec 2025 | Solar |
| Mesquite Solar 4, LLC | RWE Clean Energy | Tonopah, AZ | California Independent System Operator (CISO) | 133.6 GWh | Dec 2023 | Aug 2026 | Solar |
| McCoy Solar Energy Project Hybrid | McCoy Solar, LLC | Blythe, CA | California Independent System Operator (CISO) | 638.7 GWh | Jul 2015 | Dec 2025 | Solar |
| MM West Covina | MM West Covina Energy LLC | West Covina, CA | California Independent System Operator (CISO) | 40.4 GWh | May 1993 | Dec 2025 | Landfill Gas : 99.7% |
| MM San Diego-Miramar | MM San Diego Energy-Miramar | San Diego, CA | California Independent System Operator (CISO) | 39.6 GWh | Jun 1997 | Dec 2025 | Landfill Gas : 91.4% Other Biomass Gas : 8.6% |
| MM Yolo Power | Yolo County Community Services Department | Woodland, CA | California Independent System Operator (CISO) | 16.2 GWh | Sep 1990 | Dec 2025 | Landfill Gas |
| Mojave Siphon | California Dept. of Water Resources | Hesperia, CA | California Independent System Operator (CISO) | 46.1 GWh | Jul 1996 | Dec 2025 | Water |
| Malaga Power LLC | CalPeak Power, LLC | Fresno, CA | California Independent System Operator (CISO) | 6.0 GWh | Aug 2005 | Aug 2026 | Natural Gas |
| Ma | CD US Solar MT 2 LLC | Lancaster, CA | California Independent System Operator (CISO) | 1.8 GWh | Sep 2013 | Dec 2025 | Solar |
| McFarland A Solar and Storage | AES Clean Energy | Dateland, AZ | California Independent System Operator (CISO) | 532.4 GWh | Nov 2023 | Aug 2026 | Solar |
| McFarland B Solar and Storage | AES Clean Energy | Dateland, AZ | California Independent System Operator (CISO) | 799.3 GWh | Nov 2024 | Aug 2026 | Solar |
| McSwain | Merced Irrigation District | Snelling, CA | California Independent System Operator (CISO) | 26.9 GWh | Jun 1967 | Oct 2025 | Water |
| Mesa Wind Power LLC | Mesa Wind Power LLC | North Palm Springs, CA | California Independent System Operator (CISO) | 116.7 GWh | Oct 1984 | Aug 2026 | Wind |
| Mesa Wind Repower | Mesa Wind Repower | Whitewater, CA | California Independent System Operator (CISO) | 80.1 GWh | May 2024 | Dec 2024 | Wind |
| Mojave 3/4/5 | Terra-Gen Operating Co-Wind | Mojave, CA | California Independent System Operator (CISO) | 125.0 GWh | Nov 1990 | Dec 2025 | Wind |
| Mojave 16/17/18 | Terra-Gen Operating Co-Wind | Mojave, CA | California Independent System Operator (CISO) | 66.3 GWh | Nov 1989 | Dec 2025 | Wind |
| Mesquite Solar 2, LLC | RWE Clean Energy | Tonopah, AZ | California Independent System Operator (CISO) | 247.8 GWh | Nov 2016 | Aug 2026 | Solar |
| McKittrick Cogen | Chevron USA Inc | McKittrick, CA | California Independent System Operator (CISO) | 61.2 GWh | May 2012 | Dec 2025 | Natural Gas |
| McGrath Peaker | Southern California Edison Co | Oxnard, CA | California Independent System Operator (CISO) | 2.6 GWh | Oct 2012 | Dec 2025 | Natural Gas |
| Mesquite Solar 3, LLC | RWE Clean Energy | Tonopah, AZ | California Independent System Operator (CISO) | 434.5 GWh | Nov 2016 | Aug 2026 | Solar |
| Medline Ind. Phase 2 Tracy | Powerflex | Tracy, CA | California Independent System Operator (CISO) | 1.5 GWh | Mar 2018 | Aug 2025 | Solar |
| Merced 1 PV | ZGlobal Inc | Los Banos, CA | California Independent System Operator (CISO) | 6.0 GWh | Mar 2018 | Dec 2025 | Solar |
| Moccasin Low Head Hydro Project | City & County of San Francisco - (CA) | Moccasin, CA | California Independent System Operator (CISO) | 3.3 GWh | Jun 1987 | Dec 2025 | Water |
| Moccasin | City & County of San Francisco - (CA) | Moccasin, CA | California Independent System Operator (CISO) | 300.1 GWh | Jul 1969 | Aug 2026 | Water |
| Merced Falls | Merced Irrigation District | Snelling, CA | California Independent System Operator (CISO) | 9.1 GWh | Jun 1930 | Sep 2025 | Water |
| Mariani Packing Vacaville Solar | SunE U6 Holdings LLC | Vacaville, CA | California Independent System Operator (CISO) | 586.0 MWh | Oct 2008 | Dec 2025 | Solar |
| Maverick Solar 4, LLC | Maverick Solar 4, LLC | Desert Center, CA | California Independent System Operator (CISO) | 292.4 GWh | Nov 2020 | Aug 2026 | Solar |
| Manteca Land PV | AES Distributed Energy | Manteca, CA | California Independent System Operator (CISO) | 1.5 GWh | Nov 2017 | Dec 2025 | Solar |
| Manzana Wind LLC | Avangrid Power LLC | Rosamond, CA | California Independent System Operator (CISO) | 519.3 GWh | Nov 2012 | Dec 2025 | Wind |
| Martinez Sulfuric Acid Regeneration Plt | Eco Services Corp. | Martinez, CA | California Independent System Operator (CISO) | 13.4 GWh | Dec 1977 | Dec 2025 | Waste Heat |
| Martinez Refining | Martinez Refining Co | Martinez, CA | California Independent System Operator (CISO) | 658.2 GWh | Oct 1995 | Aug 2026 | Natural Gas : 96.1% Other Gas : 3.9% |
| Micro Santa Clara | Bloom Energy | San Jose, CA | California Independent System Operator (CISO) | 24.8 GWh | Jun 2018 | Dec 2025 | Natural Gas |
| Middle Fork | Placer County Water Agency - (CA) | Foresthill, CA | California Independent System Operator (CISO) | 483.9 GWh | Sep 1966 | Aug 2026 | Water |
| Marathon Bay Area Cogen | Tesoro Marketing & Refining Co. LLC (Martinez) | Martinez, CA | California Independent System Operator (CISO) | 598.3 GWh | Jan 1987 | Aug 2026 | Natural Gas |
| Midway Peaking LLC | CalPeak Power, LLC | Firebaugh, CA | California Independent System Operator (CISO) | 6.5 GWh | Apr 2009 | Dec 2025 | Natural Gas |
| MM Lopez Energy | MM Lopez Energy LLC | Lake View Terrace, CA | California Independent System Operator (CISO) | 25.8 GWh | Nov 1998 | Dec 2025 | Landfill Gas |
| Midway Sunset Cogen | Midway-Sunset Cogeneration Co | Fellows, CA | California Independent System Operator (CISO) | 11.4 GWh | Apr 1989 | Aug 2026 | Natural Gas |
| Maricopa West Solar PV, LLC | Onward Energy | Taft, CA | California Independent System Operator (CISO) | 50.3 GWh | Nov 2015 | Dec 2025 | Solar |
| Marin Clean Energy Solar One | AES Distributed Energy | Richmond, CA | California Independent System Operator (CISO) | 21.2 GWh | Nov 2017 | Dec 2025 | Solar |
| Marina Landfill Gas | Monterey Regional Waste Mgmt | Marina, CA | California Independent System Operator (CISO) | 9.5 GWh | Mar 1998 | Dec 2025 | Landfill Gas |
| Marina South | Altus Power America Management, LLC | San Pedro, CA | California Independent System Operator (CISO) | 1.8 GWh | Nov 2020 | Dec 2025 | Solar |
| Marsh Landing Generating Station | Marsh Landing LLC | Antioch, CA | California Independent System Operator (CISO) | 25.2 GWh | Apr 2013 | Aug 2026 | Natural Gas |
| Mariposa Energy Project | Diamond Generating Corporation | Byron, CA | California Independent System Operator (CISO) | 38.9 GWh | Sep 2012 | Aug 2026 | Natural Gas |
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 |