Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Waterbury Generation | Engie North America | Waterbury, CT | ISO New England (ISNE) | 43.8 GWh | May 2009 | Dec 2024 | Natural Gas : 99.8% |
| CPV Towantic Energy Center | CPV Towantic, LLC | Oxford, CT | ISO New England (ISNE) | 5.2 TWh | Apr 2018 | Sep 2025 | Natural Gas |
| Quinebaug Lower Project | Quinebaug Associates LLC | Brooklyn, CT | ISO New England (ISNE) | 6.4 GWh | Mar 1990 | Dec 2024 | Water |
| Wallingford Energy | Wallingford Energy LLC | Wallingford, CT | ISO New England (ISNE) | 87.8 GWh | Jul 2001 | Dec 2024 | Natural Gas |
| Ameresco Chicopee Energy | AMERESCO Chicopee Energy LLC | Chicopee, MA | ISO New England (ISNE) | 9.5 GWh | Jan 2004 | Dec 2024 | Landfill Gas |
| Fitchburg Gas Recovery | WM Renewable Energy LLC | Westminster, MA | ISO New England (ISNE) | 32.3 GWh | Sep 2007 | Dec 2024 | Landfill Gas |
| International Paper Woronoco Mill | Eagle Creek Renewable Energy, LLC | Woronoco, MA | ISO New England (ISNE) | 5.4 GWh | Dec 1912 | Dec 2024 | Water |
| Blackstone/Tupperware | Blackstone Hydro Inc. | North Smithfield, RI | ISO New England (ISNE) | 1.8 GWh | Dec 1980 | Sep 2025 | Water |
| Regional Waste Systems | Ecomaine | Portland, ME | ISO New England (ISNE) | 89.6 GWh | May 1988 | Sep 2025 | Non-biogenic Municipal Solid Waste : 54.6% Biogenic Municipal Solid Waste : 44.7% Natural Gas : 0.7% |
| Huntington Falls | Green Mountain Power Corp | Weybridge, VT | ISO New England (ISNE) | 22.9 GWh | Sep 1988 | Dec 2024 | Water |
| Robbins Lumber | Robbins Lumber Inc | Searsmont, ME | ISO New England (ISNE) | 97.0 MWh | Dec 1980 | Dec 2023 | Distillate Fuel Oil |
| Bucksport Generation LLC | Bucksport Generation LLC | Bucksport, ME | ISO New England (ISNE) | 10.2 GWh | Jun 1965 | Aug 2025 | Natural Gas : 97.3% Distillate Fuel Oil : 2.7% |
| Gilman Mill | Ampersand Gilman Hydro LP | Gilman, VT | ISO New England (ISNE) | 3.9 GWh | Dec 1940 | Dec 2024 | Water |
| M Street Jet | Massachusetts Bay Trans Auth | Boston, MA | ISO New England (ISNE) | 457.0 MWh | Apr 1979 | Dec 2024 | Kerosene |
| Gardiner | KEI (Maine) Power Management (III) LLC | Gardiner, ME | ISO New England (ISNE) | 4.3 GWh | Jun 1985 | Dec 2024 | Water |
| Covanta Southeastern Connecticut Company | Covanta Southeastern Connecticut Company | Preston, CT | ISO New England (ISNE) | 113.3 GWh | Nov 1991 | Sep 2025 | Non-biogenic Municipal Solid Waste : 54.1% Biogenic Municipal Solid Waste : 44.2% Distillate Fuel Oil : 1.7% |
| China Mill Hydro | New Hampshire Hydro Associates | Allenstown, NH | ISO New England (ISNE) | 2.8 GWh | Jun 1981 | Dec 2024 | Water |
| International Paper Riley Hydro | Eagle Creek Renewable Energy, LLC | Jay, ME | ISO New England (ISNE) | 17.7 GWh | Nov 1981 | Dec 2024 | Water |
| Derby Hydro | McCallum Enterprises I LP | Shelton, CT | ISO New England (ISNE) | 23.9 GWh | Dec 1988 | Dec 2024 | Water |
| Hillsborough Hosiery | Silverstreet Hydro | Hillsboro, NH | ISO New England (ISNE) | 2.1 GWh | Nov 1989 | Dec 2024 | Water |
| 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% |
| Somersworth Lower Great Dam | Green Mountain Power Corp | Somersworth, NH | ISO New England (ISNE) | 3.3 GWh | Jun 1985 | Jun 2024 | Water |
| Pittsfield Generating LP | Pittsfield Generating Company, LP | Pittsfield, MA | ISO New England (ISNE) | 123.3 GWh | Jun 1990 | Sep 2025 | Natural Gas : 98.6% Distillate Fuel Oil : 1.4% |
| General Electric Aircraft Engines | General Electric Aircraft Engines | Lynn, MA | ISO New England (ISNE) | 2.5 GWh | Dec 1947 | Sep 2025 | Solar |
| NE Renewable Whitefield, LLC | NE Renewable Whitefield, LLC | Whitefield, NH | ISO New England (ISNE) | 54.4 GWh | Feb 1988 | Dec 2024 | Wood/Wood Waste Solids |
| NE Renewable Springfield, LLC | NE Renewable Springfield, LLC | Springfield, NH | ISO New England (ISNE) | 33.1 GWh | Nov 1987 | Dec 2024 | Wood/Wood Waste Solids |
| Lockwood Hydroelectric Facility | Merimil Ltd Partnership | Waterville, ME | ISO New England (ISNE) | 13.6 GWh | Sep 1985 | 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 |
| Oakdale Power Station | Massachusetts Water Res Auth | West Boylston, MA | ISO New England (ISNE) | 13.9 GWh | Apr 1951 | Dec 2024 | Water |
| Deer Island Treatment Plant | Massachusetts Wtr Rauth-Deer I | Winthrop, MA | ISO New England (ISNE) | 33.4 GWh | Jul 1995 | Sep 2025 | Other Biomass Gas : 83.9% Distillate Fuel Oil : 10.8% Wind : 2.6% Solar : 1.9% Water : 0.9% |
| MMWAC Resource Recovery Facility | Maine Waste to Energy | Auburn, ME | ISO New England (ISNE) | 10.1 GWh | May 1992 | Sep 2025 | Non-biogenic Municipal Solid Waste : 54.0% Biogenic Municipal Solid Waste : 44.1% Natural Gas : 1.9% |
| International Paper Jay Hydro | Eagle Creek Renewable Energy, LLC | Jay, ME | ISO New England (ISNE) | 7.1 GWh | Dec 1911 | Dec 2024 | Water |
| Otis Hydro | Eagle Creek Renewable Energy, LLC | Livermore Falls, ME | ISO New England (ISNE) | 27.7 GWh | Dec 1984 | Sep 2025 | Water |
| Pumpkin Hill | KEI (Maine) Power Management (II) LLC | Lowell, ME | ISO New England (ISNE) | 3.2 GWh | Feb 1987 | Dec 2024 | Water |
| Hampton Facility | Foss Manufacturing Company LLC | Hampton, NH | ISO New England (ISNE) | 23.9 GWh | Sep 1978 | Sep 2025 | Natural Gas |
| Stevens Mills Dam | Eagle Creek Renewable Energy, LLC | Franklin, NH | ISO New England (ISNE) | 5.9 GWh | May 1982 | Dec 2024 | Water |
| International Paper Livermore Hydro | Eagle Creek Renewable Energy, LLC | Livermore Falls, ME | ISO New England (ISNE) | 17.3 GWh | Dec 1909 | Dec 2024 | Water |
| Univ of Massachusetts Medical Center | University of Massachusetts Medical | Worcester, MA | ISO New England (ISNE) | 68.7 GWh | Mar 1974 | Dec 2024 | Natural Gas : 99.2% Distillate Fuel Oil : 0.7% |
| Indeck West Enfield Energy Center | Stored Solar J&WE | West Enfield, ME | ISO New England (ISNE) | 50.6 GWh | Nov 1987 | Dec 2024 | Wood/Wood Waste Solids : 99.9% |
| Indeck Jonesboro Energy Center | Stored Solar J&WE | Jonesboro, ME | ISO New England (ISNE) | 16.0 MWh | Nov 1987 | Jun 2025 | Gaseous Propane : 66.7% Wood/Wood Waste Solids : 33.3% |
| Algonquin Windsor Locks | Ahlstrom Power Windsor Locks LLC | Windsor Locks, CT | ISO New England (ISNE) | 125.2 GWh | Dec 1989 | Sep 2025 | Natural Gas : 99.9% |
| Salmon Falls | Green Mountain Power Corp | South Berwick, ME | ISO New England (ISNE) | 2.6 GWh | Jun 1986 | Dec 2024 | Water |
| Cabot Holyoke | City of Holyoke Gas and Electric Dept. | Holyoke, MA | ISO New England (ISNE) | 4.4 GWh | Dec 1892 | Dec 2024 | Water |
| Barker Lower | KEI (Maine) Power Management (III) LLC | Auburn, ME | ISO New England (ISNE) | 3.7 GWh | Mar 1986 | Dec 2024 | Water |
| Masspower | Masspower | Indian Orchard, MA | ISO New England (ISNE) | 475.7 GWh | Jun 1993 | Dec 2024 | Natural Gas |
| Ottauquechee Hydro | Green Mountain Power Corp | N. Hartland, VT | ISO New England (ISNE) | 978.0 MWh | Mar 1983 | Dec 2024 | Water |
| Cherry Street | Town of Hudson - (MA) | Hudson, MA | ISO New England (ISNE) | 199.0 MWh | Apr 1951 | Dec 2024 | Natural Gas : 64.2% Distillate Fuel Oil : 35.8% |
| Pepperell Hydro Power Plant | Eagle Creek Renewable Energy, LLC | Pepperell, MA | ISO New England (ISNE) | 3.7 GWh | Dec 1919 | Sep 2025 | Water |
| Newington | Granite Shore Power | Newington, NH | ISO New England (ISNE) | 95.2 GWh | May 1974 | Aug 2025 | Natural Gas : 60.0% Residual Fuel Oil : 39.5% Distillate Fuel Oil : 0.6% |
| Benton Falls Associates | Essex Hydro Associates LLC | Benton, ME | ISO New England (ISNE) | 4.3 GWh | Nov 1987 | Dec 2024 | Water |
| Bellingham Cogeneration Facility | Northeast Energy Associates LP | Bellingham, MA | ISO New England (ISNE) | 367.8 GWh | Aug 1991 | Dec 2024 | Natural Gas : 99.9% |
| Rolfe Canal Hydro | Briar-Hydro Associates | Penacook, NH | ISO New England (ISNE) | 17.3 GWh | Nov 1987 | Dec 2024 | Water |
| Milton Hydro | SFR Hydro Cor | Milton, NH | ISO New England (ISNE) | 5.6 GWh | Dec 1913 | Dec 2024 | Water |
| Anson Abenaki Hydros | Eagle Creek Renewable Energy, LLC | Madison, ME | ISO New England (ISNE) | 116.3 GWh | Dec 1949 | Dec 2024 | Water |
| Rumford Cogeneration | ND Paper, Inc. | Rumford, ME | ISO New England (ISNE) | 429.0 GWh | Dec 1989 | Sep 2025 | Black Liquor : 51.5% Tire-derived Fuels : 22.6% Wood/Wood Waste Solids : 14.3% Bituminous Coal : 7.6% Residual Fuel Oil : 3.2% Sludge Waste : 0.9% |
| Sheldon Springs Hydroelectric | Central Rivers Power US, LLC | Sheldon Springs, VT | ISO New England (ISNE) | 67.8 GWh | Jun 1988 | Dec 2024 | Water |
| Rumford Falls Hydro Facility | Brookfield Power New England | Rumford, ME | ISO New England (ISNE) | 260.5 GWh | Dec 1917 | Dec 2024 | Water |
| Ridgewood Providence Power | Rhode Island LFG Genco | Johnston, RI | ISO New England (ISNE) | 1.5 GWh | Jul 2005 | Dec 2024 | Landfill Gas |
| Gregg Falls | Eagle Creek Renewable Energy, LLC | Goffstown, NH | ISO New England (ISNE) | 8.9 GWh | Nov 1985 | Dec 2024 | Water |
| New Milford Gas Recovery | WM Renewable Energy LLC | New Milford, CT | ISO New England (ISNE) | 4.7 GWh | Apr 2008 | Dec 2024 | Landfill Gas |
| Penacook Lower Falls | Briar-Hydro Associates | Boscawen, NH | ISO New England (ISNE) | 16.6 GWh | Jul 1983 | Dec 2024 | Water |
| Somerset Plant | Sappi Fine Paper North America-Somerset | Skowhegan, ME | ISO New England (ISNE) | 573.0 GWh | Dec 1975 | Sep 2025 | Black Liquor : 46.2% Wood/Wood Waste Solids : 38.4% Natural Gas : 6.9% Tire-derived Fuels : 5.1% Residual Fuel Oil : 2.5% Sludge Waste : 0.8% |
| Covanta Bristol Energy | Covanta Bristol Inc | Bristol, CT | ISO New England (ISNE) | 107.8 GWh | Nov 1987 | Sep 2025 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| Fife Brook | Bear Swamp Power Company LLC | Florida, MA | ISO New England (ISNE) | 29.5 GWh | Sep 1974 | Oct 2024 | Water |
| Lawrence Hydroelectric Associates | Central Rivers Power US, LLC | Lawrence, MA | ISO New England (ISNE) | 65.1 GWh | Jun 1981 | Dec 2024 | Water |
| Boltonville Hydro Associates | Boltonville Hydro Associates | Boltonville, VT | ISO New England (ISNE) | 3.3 GWh | Jun 1984 | Dec 2024 | Water |
| Penacook Upper Falls Hydro | Briar-Hydro Associates | Penacook, NH | ISO New England (ISNE) | 11.6 GWh | Nov 1986 | Dec 2024 | Water |
| ReEnergy Livermore Falls | ReEnergy Livermore Falls | Livermore Falls, ME | ISO New England (ISNE) | 266.8 GWh | Jul 1992 | Dec 2024 | Wood/Wood Waste Solids |
| ReEnergy Stratton LLC | ReEnergy Stratton LLC | Stratton, ME | ISO New England (ISNE) | 203.1 GWh | Oct 1989 | Dec 2024 | Wood/Wood Waste Solids |
| S D Warren Westbrook | Relevate Power Management LLC | Westbrook, ME | ISO New England (ISNE) | 32.7 GWh | Dec 1902 | Dec 2023 | Water |
| Indian Orchard Plant 1 | Solutia Inc-Indian | Springfield, MA | ISO New England (ISNE) | 137.0 MWh | Apr 1985 | Aug 2025 | Natural Gas |
| Clark University | Clark University | Worcester, MA | ISO New England (ISNE) | 4.4 GWh | Dec 2012 | Dec 2024 | Natural Gas |
| Brassua Hydroelectric Project | Brassua Hydroelectric LP | Rockwood, ME | ISO New England (ISNE) | 10.4 GWh | Aug 1989 | Dec 2024 | Water |
| Worumbo Hydro Station | Eagle Creek Renewable Energy, LLC | Lisbon Falls, ME | ISO New England (ISNE) | 88.7 GWh | Jan 1989 | Dec 2024 | Water |
| West Enfield Hydro | Brookfield Black Bear Hydro, LLC | West Enfield, ME | ISO New England (ISNE) | 77.5 GWh | Mar 1988 | Dec 2024 | Water |
| Errol Hydroelectric Project | Errol Hydroelectric Co LLC | Errol, NH | ISO New England (ISNE) | 15.3 GWh | Oct 1986 | Dec 2024 | Water |
| Lower Village Water Power Project | Sugar River Power LLC | Claremont, NH | ISO New England (ISNE) | 3.9 GWh | Apr 1995 | Dec 2024 | Water |
| Clement Dam Hydro LLC | Eagle Creek Renewable Energy, LLC | Tilton, NH | ISO New England (ISNE) | 8.9 GWh | Nov 1984 | Dec 2024 | Water |
| Pontook Hydro Facility | Pontook Operating LP | Dummer, NH | ISO New England (ISNE) | 61.9 GWh | Nov 1986 | Dec 2024 | Water |
| SEMASS Resource Recovery | SEMASS Partnership | West Wareham, MA | ISO New England (ISNE) | 569.5 GWh | Jun 1988 | Sep 2025 | Non-biogenic Municipal Solid Waste : 54.1% Biogenic Municipal Solid Waste : 44.3% Natural Gas : 1.5% |
| Boott Hydropower | Boott Hydro, LLC - Hybrid | Lowell, MA | ISO New England (ISNE) | 27.5 GWh | Sep 1985 | Dec 2024 | Water |
| Mine Falls Generating Station | City of Nashua, NH | Nashua, NH | ISO New England (ISNE) | 12.7 GWh | Nov 1985 | Dec 2024 | Water |
| Covanta Haverhill | Ogden Projects Inc-Haverhill | Haverhill, MA | ISO New England (ISNE) | 226.4 GWh | Apr 1989 | Sep 2025 | Non-biogenic Municipal Solid Waste : 52.2% Biogenic Municipal Solid Waste : 42.7% Distillate Fuel Oil : 5.1% |
| Dodge Falls Associates | Dodge Falls Associates LP | Bath, NH | ISO New England (ISNE) | 29.4 GWh | Nov 1990 | Dec 2024 | Water |
| Pembroke Hydro | Eagle Creek Renewable Energy, LLC | Suncook, NH | ISO New England (ISNE) | 7.4 GWh | Nov 1985 | Dec 2024 | Water |
| Central Power Plant | State of Rhode Island | Cranston, RI | ISO New England (ISNE) | 18.8 GWh | Jul 1958 | Sep 2025 | Natural Gas : 98.5% Distillate Fuel Oil : 1.5% |
| Bridgewater Power LP | Bridgewater Power Co LP | Bridgewater, NH | ISO New England (ISNE) | 93.0 GWh | Jul 1987 | Dec 2024 | Wood/Wood Waste Solids : 99.5% |
| Newfound Hydroelectric | Eagle Creek Renewable Energy, LLC | Bristol, NH | ISO New England (ISNE) | 4.1 GWh | Nov 1983 | Dec 2024 | Water |
| Highgate Falls | Village of Swanton - (VT) | Highgate, VT | ISO New England (ISNE) | 46.6 GWh | Jul 1923 | Dec 2024 | Water |
| Stony Brook | Massachusetts Mun Wholes Electric Co | Ludlow, MA | ISO New England (ISNE) | 125.4 GWh | Oct 1981 | Sep 2025 | Natural Gas : 74.6% Distillate Fuel Oil : 25.4% |
| Proctor | Green Mountain Power Corp | Proctor, VT | ISO New England (ISNE) | 31.2 GWh | Jul 1905 | Dec 2024 | Water |
| Wilkins Station | Town of Marblehead - (MA) | Marblehead, MA | ISO New England (ISNE) | 94.0 MWh | Oct 1975 | Dec 2024 | Distillate Fuel Oil |
| Mcindoes | Great River Hydro, LLC | Barnet, VT | ISO New England (ISNE) | 53.3 GWh | Dec 1930 | Dec 2024 | Water |
| Beldens | Green Mountain Power Corp | New Haven, VT | ISO New England (ISNE) | 13.5 GWh | Jul 1913 | Dec 2024 | Water |
| Carver Falls | Green Mountain Power Corp | Hampton, NY | ISO New England (ISNE) | 5.8 GWh | Jan 1922 | Dec 2024 | Water |
| Gorge 18 | Green Mountain Power Corp | South Burlington, VT | ISO New England (ISNE) | 16.7 GWh | Dec 1927 | Dec 2024 | Water |
| Wrightsville Hydro Plant | Washington Electric Coop - (VT) | Montpelier, VT | ISO New England (ISNE) | 1.7 GWh | Aug 1985 | Nov 2024 | Water |
| Deerfield 3 | Great River Hydro, LLC | Buckland, MA | ISO New England (ISNE) | 25.0 GWh | Jul 1912 | Dec 2024 | Water |
| Searsburg Wind Turbine | Green Mountain Power Corp | Searsburg, VT | ISO New England (ISNE) | 11.5 GWh | May 1997 | Sep 2025 | Wind |
| Front Street | City of Chicopee - (MA) | Chicopee, MA | ISO New England (ISNE) | 497.0 MWh | Dec 1977 | Dec 2024 | Distillate Fuel Oil |
Summary of Power Plants By State
Figures are based on September 2025 generation numbers.| State | Rank | Active Plants | Sep 2025 Generation |
|---|---|---|---|
| Alabama | # 7 | 76 | 12,052.47 GWh |
| Alaska | # 48 | 147 | 527.57 GWh |
| Arizona | # 9 | 183 | 11,602.92 GWh |
| Arkansas | # 21 | 117 | 5,844.09 GWh |
| California | # 4 | 1,769 | 19,371.91 GWh |
| Colorado | # 30 | 304 | 4,433.17 GWh |
| Connecticut | # 32 | 168 | 3,779.74 GWh |
| Delaware | # 49 | 33 | 419.31 GWh |
| District of Columbia | # 51 | 16 | 16.99 GWh |
| Florida | # 2 | 323 | 24,446.09 GWh |
| Georgia | # 8 | 266 | 11,628.97 GWh |
| Hawaii | # 47 | 73 | 826.54 GWh |
| Idaho | # 44 | 148 | 1,495.33 GWh |
| Illinois | # 5 | 385 | 14,642.93 GWh |
| Indiana | # 14 | 213 | 8,730.35 GWh |
| Iowa | # 26 | 295 | 5,224.35 GWh |
| Kansas | # 25 | 189 | 5,250.86 GWh |
| Kentucky | # 23 | 60 | 5,806.86 GWh |
| Louisiana | # 13 | 87 | 9,343.34 GWh |
| Maine | # 45 | 217 | 1,135.36 GWh |
| Maryland | # 39 | 204 | 2,935.42 GWh |
| Massachusetts | # 41 | 652 | 1,746.92 GWh |
| Michigan | # 11 | 279 | 10,468.02 GWh |
| Minnesota | # 29 | 769 | 4,717.95 GWh |
| Mississippi | # 20 | 58 | 6,625.37 GWh |
| Missouri | # 22 | 128 | 5,843.17 GWh |
| State | Rank | Active Plants | Sep 2025 Generation |
|---|---|---|---|
| Montana | # 40 | 72 | 1,949.24 GWh |
| Nebraska | # 34 | 132 | 3,501.38 GWh |
| Nevada | # 31 | 114 | 4,053.88 GWh |
| New Hampshire | # 42 | 60 | 1,549.07 GWh |
| New Jersey | # 27 | 399 | 4,969.45 GWh |
| New Mexico | # 36 | 145 | 3,317.84 GWh |
| New York | # 12 | 966 | 10,145.62 GWh |
| North Carolina | # 10 | 917 | 11,211.15 GWh |
| North Dakota | # 37 | 60 | 3,089.17 GWh |
| Ohio | # 6 | 201 | 12,818.31 GWh |
| Oklahoma | # 17 | 143 | 7,364.05 GWh |
| Oregon | # 28 | 282 | 4,812.51 GWh |
| Pennsylvania | # 3 | 260 | 19,731.43 GWh |
| Rhode Island | # 46 | 100 | 863.62 GWh |
| South Carolina | # 16 | 207 | 7,861.23 GWh |
| South Dakota | # 43 | 52 | 1,535.17 GWh |
| Tennessee | # 19 | 88 | 6,829.06 GWh |
| Texas | # 1 | 946 | 51,969.48 GWh |
| Utah | # 35 | 126 | 3,419.48 GWh |
| Vermont | # 50 | 120 | 165.14 GWh |
| Virginia | # 15 | 241 | 8,580.52 GWh |
| Washington | # 18 | 138 | 7,120.43 GWh |
| West Virginia | # 38 | 39 | 3,057.29 GWh |
| Wisconsin | # 24 | 251 | 5,674.74 GWh |
| Wyoming | # 33 | 73 | 3,641.70 GWh |