Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Blount Street | Madison Gas & Electric Co | Madison, WI | Midcontinent Independent System Operator, Inc. (MISO) | 48.8 GWh | May 1957 | Dec 2024 | Natural Gas |
| Fitchburg | Madison Gas & Electric Co | Madison, WI | Midcontinent Independent System Operator, Inc. (MISO) | 14.0 MWh | Apr 1973 | Dec 2024 | Natural Gas |
| Sycamore (WI) | Madison Gas & Electric Co | Madison, WI | Midcontinent Independent System Operator, Inc. (MISO) | 19.0 MWh | Nov 1967 | Dec 2024 | Natural Gas |
| Nine Springs | Madison Gas & Electric Co | Madison, WI | Midcontinent Independent System Operator, Inc. (MISO) | 82.0 MWh | Nov 1964 | Dec 2024 | Natural Gas |
| Wind Turbine | Madison Gas & Electric Co | Casco, WI | Midcontinent Independent System Operator, Inc. (MISO) | 13.4 GWh | May 1999 | Dec 2024 | Wind |
| West Marinette 34 | Madison Gas & Electric Co | Peshtigo, WI | Midcontinent Independent System Operator, Inc. (MISO) | 43.6 GWh | May 2000 | Dec 2024 | Natural Gas |
| West Campus Cogeneration Facility | Madison Gas & Electric Co | Madison, WI | Midcontinent Independent System Operator, Inc. (MISO) | 282.0 GWh | Mar 2005 | Dec 2024 | Natural Gas : 99.8% |
| Middleton Airport Solar | Madison Gas & Electric Co | Middleton, WI | Midcontinent Independent System Operator, Inc. (MISO) | 8.2 GWh | Jun 2020 | Dec 2024 | Solar |
| O'Brien Solar Fields | Madison Gas & Electric Co | Fitchburg, WI | Midcontinent Independent System Operator, Inc. (MISO) | 38.5 GWh | Apr 2021 | Dec 2024 | Solar |
| Hermsdorf Solar | Madison Gas & Electric Co | Madison, WI | Midcontinent Independent System Operator, Inc. (MISO) | 14.8 GWh | Feb 2022 | Dec 2024 | Solar |
| Tyto Solar | Madison Gas & Electric Co | Fitchburg, WI | Midcontinent Independent System Operator, Inc. (MISO) | 10.8 GWh | Jan 2024 | Dec 2024 | Solar |
| Saratoga Wind Farm | Madison Gas & Electric Co | Lime Springs, IA | Midcontinent Independent System Operator, Inc. (MISO) | 255.9 GWh | Jan 2019 | Mar 2026 | Wind |
| Top of Iowa Windfarm III | Madison Gas & Electric Co | Kensett, IA | Midcontinent Independent System Operator, Inc. (MISO) | 43.8 GWh | Jan 2008 | Dec 2024 | Wind |
| Diesel Generators | Madison Gas & Electric Co | Madison, WI | Midcontinent Independent System Operator, Inc. (MISO) | 1.4 GWh | May 2001 | Mar 2026 | Distillate Fuel Oil |
| Madison Windpower LLC | Madison Windpower LLC | Madison, NY | New York Independent System Operator (NYIS) | 543.0 MWh | Sep 2000 | Sep 2025 | Wind |
| Magdaline Solar, LLC | Magdaline Solar, LLC | Lynchburg, SC | Duke Energy Progress East (CPLE) | 2.9 GWh | Aug 2023 | Dec 2024 | Solar |
| Magnolia Power | Magnolia Power Holdings LLC | Plaquemine, LA | Midcontinent Independent System Operator, Inc. (MISO) | 1.3 TWh | - | Mar 2026 | Natural Gas |
| Biomass to Energy Facility, Kauai | Mahipapa LLC | Koloa, HI | 6.4 GWh | Apr 2014 | Dec 2024 | Agricultural By-Products : 99.8% | |
| Maimonides Medical Center | Maimonides Medical Center | Brooklyn, NY | New York Independent System Operator (NYIS) | 21.0 MWh | Dec 1989 | Dec 2024 | Distillate Fuel Oil |
| Augusta | Maine DG Solar Augusta, LLC | Augusta, ME | ISO New England (ISNE) | 4.7 GWh | Feb 2022 | Dec 2024 | Solar |
| Baldwin (ME) | Maine DG Solar Baldwin, LLC | West Baldwin, ME | ISO New England (ISNE) | 9.9 GWh | Feb 2022 | Dec 2024 | Solar |
| Harmony Solar (ME) | Maine DG Solar Harmony, LLC | Harmony, ME | ISO New England (ISNE) | 8.9 GWh | Jul 2022 | Dec 2024 | Solar |
| Monmouth | Maine DG Solar Monmouth, LLC | Monmouth, ME | ISO New England (ISNE) | 9.4 GWh | Feb 2022 | Dec 2024 | Solar |
| Pittsfield Solar (N. Main St) | Maine DG Solar Pittsfield, LLC | Pittsfield, ME | ISO New England (ISNE) | 8.4 GWh | Sep 2023 | Dec 2024 | Solar |
| MMWAC Resource Recovery Facility | Maine Waste to Energy | Auburn, ME | ISO New England (ISNE) | 8.3 GWh | May 1992 | Mar 2026 | Non-biogenic Municipal Solid Waste : 53.9% Biogenic Municipal Solid Waste : 44.1% Natural Gas : 1.9% |
| Major Oak Power | Major Oak Power, LLC | Bremond, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 2.1 TWh | Aug 1990 | Mar 2026 | Lignite Coal : 99.9% |
| Malmedal Solar Garden | Malmedal Garden LLC | Starbuck, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.7 GWh | Jun 2019 | Dec 2024 | Solar |
| Mammoth North Solar | Mammoth North, LLC | Knox, IN | PJM Interconnection, LLC (PJM) | 746.6 GWh | Oct 2024 | Mar 2026 | Solar |
| Mammoth Plains | Mammoth Plains Wind Project | Oakwood, OK | Southwest Power Pool (SWPP) | 719.9 GWh | Nov 2014 | Dec 2024 | Wind |
| Manchester Street | Manchester Street, LLC. | Providence, RI | ISO New England (ISNE) | 2.0 TWh | Aug 1995 | Mar 2026 | Natural Gas : 91.6% Distillate Fuel Oil : 8.4% |
| Manitowoc | Manitowoc Public Utilities | Manitowoc, WI | Midcontinent Independent System Operator, Inc. (MISO) | 177.8 GWh | May 1955 | Mar 2026 | Wood/Wood Waste Solids : 91.1% Petroleum Coke : 4.9% Bituminous Coal : 3.6% |
| Custer Energy Center | Manitowoc Public Utilities | Manitowoc, WI | Midcontinent Independent System Operator, Inc. (MISO) | 5.5 GWh | May 1999 | Dec 2024 | Natural Gas |
| Mantisi | Mantisi Solar LLC | Brockport, NY | New York Independent System Operator (NYIS) | 6.5 GWh | Feb 2024 | Dec 2024 | Solar |
| Maple(CSG) | Maple Street Solar 1, LLC | Bellingham, MA | ISO New England (ISNE) | 6.7 GWh | Oct 2021 | Dec 2024 | Solar |
| Mapleton Community Solar | Mapleton Community Solar | Mapleton, MN | Midcontinent Independent System Operator, Inc. (MISO) | 5.0 GWh | May 2017 | Dec 2024 | Solar |
| Marble River Wind Farm | Marble River, LLC | Churubusco, NY | New York Independent System Operator (NYIS) | 459.4 GWh | Oct 2012 | Mar 2026 | Wind |
| DC Water Solar | Marbury Point Solar LLC | Washington, DC | PJM Interconnection, LLC (PJM) | 5.6 GWh | Apr 2021 | Dec 2024 | Solar |
| Marco Ranch | Marco Power Inc | Jerome, ID | Idaho Power Company (IPCO) | 2.5 GWh | Jul 1985 | Oct 2024 | Water |
| Marcus Hook Energy LP | Marcus Hook Energy LP | Marcus Hook, PA | PJM Interconnection, LLC (PJM) | 5.7 TWh | Nov 2004 | Mar 2026 | Natural Gas |
| Syncarpha Freetown | Marie's Way Solar I, LLC | Freetown, MA | ISO New England (ISNE) | 6.2 GWh | Oct 2016 | Dec 2024 | Solar |
| Heller Industrial Parks | Marina Energy LLC | Dayton, NJ | PJM Interconnection, LLC (PJM) | 7.7 GWh | Nov 2011 | Dec 2024 | Solar |
| Freeze Solar | Marina Energy LLC | Dayton, NJ | PJM Interconnection, LLC (PJM) | 2.0 GWh | Nov 2013 | Dec 2024 | Solar |
| Heller 400M | Marina Energy LLC | Edison Township, NJ | PJM Interconnection, LLC (PJM) | 1.4 GWh | Apr 2013 | Dec 2024 | Solar |
| Marion County Solar Project | Marion County Solar Project, LLC | Marion, OH | PJM Interconnection, LLC (PJM) | 9.9 GWh | - | Mar 2026 | Solar |
| Marion Solar LNG | Marion Solar LLC | Indianapolis, IN | Midcontinent Independent System Operator, Inc. (MISO) | 2.1 GWh | Sep 2015 | Dec 2024 | Solar |
| Belmont | Marion Solar LLC | Indianapolis, IN | Midcontinent Independent System Operator, Inc. (MISO) | 5.2 GWh | Oct 2015 | Dec 2024 | Solar |
| Markum Solar Farm | Markum Solar Farm, LLC | Valley Mills, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 370.8 GWh | Oct 2024 | Mar 2026 | Solar |
| Marlboro Mushrooms Solar Field | Marlboro Mushroom | West Grove, PA | PJM Interconnection, LLC (PJM) | 1.3 GWh | Oct 2011 | Dec 2024 | Solar |
| Marlborough Solar | Marlborough Solar, LLC | Milton, NY | ISO New England (ISNE) | 3.4 GWh | Feb 2021 | Dec 2024 | Solar |
| Marlow Solar, LLC CSG | Marlow Solar, LLC | Bluford, IL | Midcontinent Independent System Operator, Inc. (MISO) | 4.3 GWh | Nov 2020 | Dec 2024 | Solar |
| OR - Green Key - Marquam | Marquam Creek Solar, LLC | Molalla, OR | Portland General Electric Company (PGE) | 37.0 MWh | Nov 2024 | Dec 2024 | Solar |
| ME - Novel (Lighthouse Ph I) Mars Hill | Mars Hill Road Solar Farm, LLC | Westfield, ME | ISO New England (ISNE) | 22.0 MWh | Jul 2024 | Dec 2024 | Solar |
| Mars Wrigley Confectionery US, LLC | Mars Wrigley Confectionery US, LLC | Hackettstown, NJ | PJM Interconnection, LLC (PJM) | 41.7 GWh | Sep 1984 | Dec 2024 | Natural Gas |
| Marsh Landing Generating Station | Marsh Landing LLC | Antioch, CA | California Independent System Operator (CISO) | 13.7 GWh | Apr 2013 | Mar 2026 | Natural Gas |
| Marshall Solar | Marshall Solar | Hartsville, SC | Duke Energy Progress East (CPLE) | 3.2 GWh | Jun 2022 | Dec 2024 | Solar |
| Marshall Solar Energy Project | Marshall Solar Energy Project | Marshall, MN | Midcontinent Independent System Operator, Inc. (MISO) | 95.7 GWh | Dec 2016 | Mar 2026 | Solar |
| Marshall Wind 6 LLC | Marshall Wind Farm, LLC | Marshall, MN | Midcontinent Independent System Operator, Inc. (MISO) | 3.0 GWh | Nov 2007 | Dec 2024 | Wind |
| Marshall Wind 1 LLC | Marshall Wind Farm, LLC | Marshall, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.5 GWh | Nov 2007 | Dec 2024 | Wind |
| Marshall Wind 2 LLC | Marshall Wind Farm, LLC | Marshall, MN | Midcontinent Independent System Operator, Inc. (MISO) | 6.4 GWh | Nov 2007 | Dec 2024 | Wind |
| Marshall Wind 3 LLC | Marshall Wind Farm, LLC | Marshall, MN | Midcontinent Independent System Operator, Inc. (MISO) | 6.0 GWh | Nov 2007 | Dec 2024 | Wind |
| Marshall Wind 4 LLC | Marshall Wind Farm, LLC | Marshall, MN | Midcontinent Independent System Operator, Inc. (MISO) | 6.2 GWh | Nov 2007 | Dec 2024 | Wind |
| Marshall Wind 5 LLC | Marshall Wind Farm, LLC | Marshall, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.1 GWh | Nov 2007 | Dec 2024 | Wind |
| Martin County Solar Project, LLC | Martin County Solar Project, LLC | Pilgrim, KY | PJM Interconnection, LLC (PJM) | 216.2 GWh | Nov 2024 | Mar 2026 | Solar |
| Martinez Refining | Martinez Refining Co | Martinez, CA | California Independent System Operator (CISO) | 689.7 GWh | Oct 1995 | Mar 2026 | Natural Gas : 96.7% Other Gas : 3.3% |
| Eastern Correctional Institute | Maryland Environmental Service | Westover, MD | PJM Interconnection, LLC (PJM) | 13.1 GWh | Jul 1987 | Mar 2026 | Natural Gas : 98.8% Distillate Fuel Oil : 1.2% |
| Falls River Hydro | Marysville Hydro Partners | Ashton, ID | Bonneville Power Administration (BPAT) | 47.4 GWh | Jul 1993 | Dec 2024 | Water |
| Mas Durham Power, LLC | Mas Durham Power, LLC | Durham, NC | Duke Energy Carolinas (DUK) | 10.2 GWh | Jan 2010 | Dec 2024 | Landfill Gas |
| North Brookfield | Mass Solar, LLC | North Brookfield, MA | ISO New England (ISNE) | 4.2 GWh | May 2014 | Dec 2024 | Solar |
| Braley Road 2 | Mass Solar, LLC | Freetown, MA | ISO New England (ISNE) | 1.6 GWh | Feb 2015 | Dec 2024 | Solar |
| Dartmouth | Mass Solar, LLC | Dartmouth, MA | ISO New England (ISNE) | 7.9 GWh | Mar 2014 | Dec 2024 | Solar |
| Freetown Solar | Mass Solar, LLC | Freetown, MA | ISO New England (ISNE) | 5.9 GWh | Feb 2015 | Dec 2024 | Solar |
| M Street Jet | Massachusetts Bay Trans Auth | Boston, MA | ISO New England (ISNE) | 457.0 MWh | Apr 1979 | Dec 2024 | Kerosene |
| Bridgewater Complex Co-Generation Plant | Massachusetts Department of Correction | Bridgewater, MA | ISO New England (ISNE) | 1.1 GWh | Oct 2015 | Dec 2024 | Natural Gas |
| Dorchester Solar Site | Massachusetts Electric Co | Dorchester, MA | ISO New England (ISNE) | 1.5 GWh | Dec 2011 | Dec 2024 | Solar |
| Haverhill Solar Power Project | Massachusetts Electric Co | Haverhill, MA | ISO New England (ISNE) | 1.2 GWh | Nov 2010 | Dec 2024 | Solar |
| NEDC Solar Site | Massachusetts Electric Co | Whitinsville, MA | ISO New England (ISNE) | 979.0 MWh | May 2010 | Dec 2024 | Solar |
| Mass Inst Tech Cntrl Utilities/Cogen Plt | Massachusetts Inst of Tech | Cambridge, MA | ISO New England (ISNE) | 204.8 GWh | May 1995 | Dec 2024 | Natural Gas |
| SELCO Community Solar | Massachusetts Mun Wholes Electric Co | Shrewsbury, MA | ISO New England (ISNE) | 4.9 GWh | May 2018 | Dec 2024 | Solar |
| Stony Brook | Massachusetts Mun Wholes Electric Co | Ludlow, MA | ISO New England (ISNE) | 177.4 GWh | Oct 1981 | Mar 2026 | Distillate Fuel Oil : 56.5% Natural Gas : 43.5% |
| Berkshire Wind Power Project | Massachusetts Mun Wholes Electric Co | Lanesboro, MA | ISO New England (ISNE) | 36.2 GWh | Apr 2011 | Mar 2026 | Wind |
| Oakdale Power Station | Massachusetts Water Res Auth | West Boylston, MA | ISO New England (ISNE) | 13.9 GWh | Apr 1951 | Dec 2024 | Water |
| Cosgrove Intake and Power Station | Massachusetts Water Res Auth | Clinton, MA | ISO New England (ISNE) | 738.0 MWh | Dec 1968 | Dec 2024 | Water |
| Deer Island Treatment Plant | Massachusetts Wtr Rauth-Deer I | Winthrop, MA | ISO New England (ISNE) | 34.0 GWh | Jul 1995 | Mar 2026 | Other Biomass Gas : 81.2% Distillate Fuel Oil : 14.2% Wind : 2.8% Solar : 1.8% |
| Masser Farms Realty Solar | Masser Farms Realty Ltd | Sacramento, PA | PJM Interconnection, LLC (PJM) | 1.2 GWh | Apr 2011 | Dec 2024 | Solar |
| Masspower | Masspower | Indian Orchard, MA | ISO New England (ISNE) | 475.7 GWh | Jun 1993 | Dec 2024 | Natural Gas |
| Maston Garden Solar | Maston Garden LLC | Kasson, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.7 GWh | Apr 2020 | Dec 2024 | Solar |
| Eklutna Generation Station | Matanuska Electric Assn Inc | Chugiak, AK | 573.0 GWh | Jan 2015 | Dec 2024 | Natural Gas | |
| Medical Area Total Energy Plant | MATEP LLC | Boston, MA | ISO New England (ISNE) | 318.1 GWh | Dec 1979 | Dec 2024 | Natural Gas : 98.3% Distillate Fuel Oil : 1.7% |
| Hartford Landfill Solar EGF | Materials Innovation Recycling Authority | Hartford, CT | ISO New England (ISNE) | 1.2 GWh | May 2014 | Dec 2024 | Solar |
| Hana Substation | Maui Electric Co Ltd | Hana, HI | 210.0 MWh | Mar 2001 | Dec 2024 | Distillate Fuel Oil | |
| Kuihelani Substation | Maui Electric Co Ltd | Kahului, HI | 2.0 MWh | Jul 2023 | Dec 2024 | Distillate Fuel Oil | |
| Palaau Power Hybrid | Maui Electric Co Ltd | Kaunakakai, HI | 31.3 GWh | Mar 1982 | Dec 2024 | Distillate Fuel Oil | |
| Maalaea | Maui Electric Co Ltd | Kihei, HI | 630.7 GWh | Nov 1971 | Mar 2026 | Distillate Fuel Oil | |
| Miki Basin | Maui Electric Co Ltd | Lanai City, HI | 35.1 GWh | Mar 1990 | Dec 2024 | Distillate Fuel Oil | |
| Kahului | Maui Electric Co Ltd | Kahului, HI | 157.1 GWh | Apr 1948 | Dec 2024 | Residual Fuel Oil | |
| Eagle Pass | Maverick Cty Water Control & Improvement | Eagle Pass, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 12.6 GWh | Jul 1932 | Feb 2026 | Water |
| Maverick Solar 4, LLC | Maverick Solar 4, LLC | Desert Center, CA | California Independent System Operator (CISO) | 291.4 GWh | Nov 2020 | Mar 2026 | Solar |
| Maverick Solar 6, LLC | Maverick Solar 6, LLC | Desert Center, CA | California Independent System Operator (CISO) | 277.5 GWh | Oct 2021 | Mar 2026 | Solar |
| Maverick Solar 7, LLC | Maverick Solar 7, LLC | Desert Center, CA | California Independent System Operator (CISO) | 391.5 GWh | Nov 2021 | Mar 2026 | Solar |
| Maverick Solar, LLC | Maverick Solar, LLC | Desert Center, CA | California Independent System Operator (CISO) | 369.3 GWh | Nov 2020 | Mar 2026 | Solar |
Summary of Power Plants By State
Figures are based on March 2026 generation numbers.| State | Rank | Active Plants | Mar 2026 Generation |
|---|---|---|---|
| Alabama | # 10 | 76 | 10,194.39 GWh |
| Alaska | # 48 | 139 | 566.31 GWh |
| Arizona | # 15 | 183 | 8,256.99 GWh |
| Arkansas | # 25 | 114 | 4,973.03 GWh |
| California | # 5 | 1,656 | 15,197.83 GWh |
| Colorado | # 30 | 294 | 4,491.41 GWh |
| Connecticut | # 31 | 161 | 3,992.67 GWh |
| Delaware | # 49 | 33 | 248.78 GWh |
| District of Columbia | # 51 | 16 | 18.32 GWh |
| Florida | # 3 | 334 | 19,802.71 GWh |
| Georgia | # 8 | 247 | 10,697.11 GWh |
| Hawaii | # 46 | 69 | 784.18 GWh |
| Idaho | # 42 | 144 | 1,957.44 GWh |
| Illinois | # 4 | 379 | 15,489.73 GWh |
| Indiana | # 12 | 216 | 9,257.49 GWh |
| Iowa | # 21 | 289 | 6,478.67 GWh |
| Kansas | # 23 | 183 | 5,489.55 GWh |
| Kentucky | # 29 | 59 | 4,637.74 GWh |
| Louisiana | # 17 | 86 | 8,003.69 GWh |
| Maine | # 45 | 212 | 1,313.24 GWh |
| Maryland | # 39 | 202 | 2,834.84 GWh |
| Massachusetts | # 44 | 639 | 1,383.17 GWh |
| Michigan | # 13 | 268 | 8,564.76 GWh |
| Minnesota | # 26 | 760 | 4,875.53 GWh |
| Mississippi | # 24 | 55 | 5,467.46 GWh |
| Missouri | # 22 | 125 | 5,500.53 GWh |
| State | Rank | Active Plants | Mar 2026 Generation |
|---|---|---|---|
| Montana | # 40 | 69 | 2,464.49 GWh |
| Nebraska | # 37 | 121 | 3,330.39 GWh |
| Nevada | # 35 | 114 | 3,487.65 GWh |
| New Hampshire | # 43 | 54 | 1,520.13 GWh |
| New Jersey | # 28 | 379 | 4,705.05 GWh |
| New Mexico | # 33 | 142 | 3,587.89 GWh |
| New York | # 9 | 935 | 10,247.40 GWh |
| North Carolina | # 11 | 896 | 9,821.46 GWh |
| North Dakota | # 32 | 59 | 3,854.12 GWh |
| Ohio | # 6 | 200 | 12,175.28 GWh |
| Oklahoma | # 19 | 142 | 7,305.54 GWh |
| Oregon | # 20 | 266 | 6,583.30 GWh |
| Pennsylvania | # 2 | 249 | 20,000.86 GWh |
| Rhode Island | # 47 | 100 | 610.71 GWh |
| South Carolina | # 14 | 204 | 8,273.25 GWh |
| South Dakota | # 41 | 52 | 2,184.62 GWh |
| Tennessee | # 18 | 88 | 7,335.80 GWh |
| Texas | # 1 | 961 | 46,858.09 GWh |
| Utah | # 38 | 125 | 3,184.50 GWh |
| Vermont | # 50 | 117 | 217.82 GWh |
| Virginia | # 16 | 233 | 8,059.42 GWh |
| Washington | # 7 | 131 | 10,773.76 GWh |
| West Virginia | # 34 | 40 | 3,543.98 GWh |
| Wisconsin | # 27 | 239 | 4,794.79 GWh |
| Wyoming | # 36 | 70 | 3,358.51 GWh |