Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Torrington Terminal | Connecticut Jet Power LLC | Torrington, CT | ISO New England (ISNE) | 146.0 MWh | Oct 1967 | Dec 2024 | Kerosene |
| Millstone | Dominion Energy Nuclear Conn Inc | Waterford, CT | ISO New England (ISNE) | 16.7 TWh | Nov 1975 | Dec 2025 | Nuclear |
| Bridgeport Station | Generation Bridge II Connecticut, LLC | Bridgeport, CT | ISO New England (ISNE) | 3.4 TWh | Jul 1961 | Dec 2025 | Natural Gas : 98.5% Distillate Fuel Oil : 1.5% |
| Tenth Street | City of Norwich - (CT) | Norwich, CT | ISO New England (ISNE) | 3.2 GWh | Apr 1967 | Sep 2024 | Water |
| J C McNeil | City of Burlington Electric - (VT) | Burlington, VT | ISO New England (ISNE) | 209.3 GWh | May 1984 | Dec 2025 | Wood/Wood Waste Solids : 99.8% |
| Potter Station 2 | Town of Braintree - (MA) | Braintree, MA | ISO New England (ISNE) | 23.3 GWh | Jun 1963 | Dec 2024 | Natural Gas : 93.9% Distillate Fuel Oil : 6.1% |
| W K Sanders | Village of Morrisville - (VT) | Hyde Park, VT | ISO New England (ISNE) | 548.0 MWh | Jun 1983 | Dec 2024 | Water |
| High Street Station | Town of Ipswich - (MA) | Ipswich, MA | ISO New England (ISNE) | 197.0 MWh | May 1937 | Dec 2024 | Natural Gas : 91.9% Distillate Fuel Oil : 8.1% |
| Waters River | City of Peabody - (MA) | Peabody, MA | ISO New England (ISNE) | 4.8 GWh | Nov 1971 | Nov 2024 | Natural Gas : 78.8% Distillate Fuel Oil : 21.2% |
| Cleary Flood Hybrid | City of Taunton | Taunton, MA | ISO New England (ISNE) | 132.5 GWh | May 1966 | Dec 2024 | Natural Gas : 99.8% |
| Charles E Monty | Brookfield White Pine Hydro LLC | Lewiston, ME | ISO New England (ISNE) | 140.7 GWh | Dec 1989 | Dec 2024 | Water |
| West Buxton | Brookfield White Pine Hydro LLC | Buxton, ME | ISO New England (ISNE) | 20.4 GWh | Dec 1903 | Dec 2024 | Water |
| Skelton | Brookfield White Pine Hydro LLC | Dayton, ME | ISO New England (ISNE) | 57.6 GWh | Dec 1947 | Dec 2024 | Water |
| Mystic Generating Station | Constellation Mystic Power LLC | Charlestown, MA | ISO New England (ISNE) | 1.8 TWh | May 1969 | Mar 2024 | Natural Gas |
| Bonny Eagle | Brookfield White Pine Hydro LLC | Hollis, ME | ISO New England (ISNE) | 33.0 GWh | Dec 1909 | Dec 2024 | Water |
| Chemical | City of Holyoke Gas and Electric Dept. | Holyoke, MA | ISO New England (ISNE) | 5.5 GWh | Dec 1934 | Dec 2024 | Water |
| Boatlock | City of Holyoke Gas and Electric Dept. | Holyoke, MA | ISO New England (ISNE) | 18.9 GWh | Dec 1920 | Dec 2024 | Water |
| Canal | Canal Generating LLC | Sandwich, MA | ISO New England (ISNE) | 374.4 GWh | May 1968 | Dec 2025 | Natural Gas : 49.1% Residual Fuel Oil : 47.3% Distillate Fuel Oil : 3.6% |
| Stillwater Hydro Station | Brookfield Black Bear Hydro, LLC | Stillwater, ME | ISO New England (ISNE) | 7.0 GWh | Dec 1912 | Dec 2024 | Water |
| William F Wyman Hybrid | FPL Energy Wyman LLC | Yarmouth, ME | ISO New England (ISNE) | 137.6 GWh | Dec 1956 | Dec 2025 | Residual Fuel Oil : 99.3% Distillate Fuel Oil : 0.7% |
| Shawmut | Brookfield White Pine Hydro LLC | Shawmut, ME | ISO New England (ISNE) | 17.0 GWh | Dec 1912 | Dec 2024 | Water |
| Weston Hydro | Brookfield White Pine Hydro LLC | Skowhegan, ME | ISO New England (ISNE) | 57.4 GWh | Dec 1919 | Dec 2024 | Water |
| Williams Hydro | Brookfield White Pine Hydro LLC | Solon, ME | ISO New England (ISNE) | 80.2 GWh | Dec 1938 | Dec 2024 | Water |
| Wyman Hydro | Brookfield White Pine Hydro LLC | Bingham, ME | ISO New England (ISNE) | 337.1 GWh | Dec 1929 | Dec 2024 | Water |
| Exelon Medway LLC | Constellation Power, Inc | Medway, MA | ISO New England (ISNE) | 2.0 GWh | Jun 1970 | Dec 2024 | Distillate Fuel Oil |
| Milford Hydro Station | Brookfield Black Bear Hydro, LLC | Milford, ME | ISO New England (ISNE) | 37.2 GWh | Jun 1941 | Dec 2024 | Water |
| Oak Bluffs Diesel Generating Facility | Vineyard Reliability LLC | Oak Bluffs, MA | ISO New England (ISNE) | 2.1 GWh | Dec 1968 | Dec 2024 | Distillate Fuel Oil |
| Ellsworth Hydro Station | Brookfield Black Bear Hydro, LLC | Ellsworth, ME | ISO New England (ISNE) | 21.9 GWh | Jun 1924 | Dec 2024 | Water |
| Kendall Square Station | Kendall Green Energy, LLC | Cambridge, MA | ISO New England (ISNE) | 1.5 TWh | May 1949 | Dec 2025 | Natural Gas : 99.1% Distillate Fuel Oil : 0.9% |
| North Gorham | Brookfield White Pine Hydro LLC | Gorham, ME | ISO New England (ISNE) | 6.6 GWh | Dec 1924 | Dec 2024 | Water |
| Cape Gas Turbine | FPL Energy Cape LLC | Portland, ME | ISO New England (ISNE) | 111.0 MWh | Dec 1969 | Dec 2024 | Distillate Fuel Oil |
| Cataract Hydro | Brookfield White Pine Hydro LLC | Saco, ME | ISO New England (ISNE) | 28.5 GWh | Dec 1936 | Dec 2024 | Water |
| Deer Rips | Brookfield White Pine Hydro LLC | Auburn, ME | ISO New England (ISNE) | 58.2 GWh | Dec 1902 | Dec 2024 | Water |
| Gulf Island | Brookfield White Pine Hydro LLC | Lewiston, ME | ISO New England (ISNE) | 136.3 GWh | Dec 1925 | Dec 2024 | Water |
| Harris Hydro | Brookfield White Pine Hydro LLC | West Forks, ME | ISO New England (ISNE) | 170.4 GWh | Dec 1953 | Dec 2024 | Water |
| Hiram | Brookfield White Pine Hydro LLC | Hiram, ME | ISO New England (ISNE) | 40.2 GWh | Dec 1916 | Dec 2024 | Water |
| Exelon Framingham LLC | Constellation Power, Inc | Framingham, MA | ISO New England (ISNE) | 273.0 MWh | Aug 1969 | Dec 2024 | Distillate Fuel Oil |
| Brunswick Hydro | Brookfield White Pine Hydro LLC | Brunswick, ME | ISO New England (ISNE) | 88.1 GWh | Feb 1982 | Dec 2024 | Water |
| Hadley Falls | City of Holyoke Gas and Electric Dept. | Holyoke, MA | ISO New England (ISNE) | 151.1 GWh | Dec 1951 | Dec 2024 | Water |
| Messalonskee 2 (Oakland) | Messalonskee Stream Hydro LLC | Oakland, ME | ISO New England (ISNE) | 10.8 GWh | Dec 1923 | Dec 2024 | Water |
| Messalonskee 3 | Messalonskee Stream Hydro LLC | Oakland, ME | ISO New England (ISNE) | 6.5 GWh | Dec 1917 | Dec 2024 | Water |
| Messalonskee 5 | Messalonskee Stream Hydro LLC | Waterville, ME | ISO New England (ISNE) | 3.3 GWh | Dec 1934 | Dec 2024 | Water |
| Indian Orchard Plant 1 | Solutia Inc-Indian | Springfield, MA | ISO New England (ISNE) | 2.2 GWh | Apr 1985 | Dec 2025 | 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% |
| Clark University | Clark University | Worcester, MA | ISO New England (ISNE) | 4.4 GWh | Dec 2012 | Dec 2024 | Natural Gas |
| Pittsfield Generating LP | Pittsfield Generating Company, LP | Pittsfield, MA | ISO New England (ISNE) | 134.6 GWh | Jun 1990 | Dec 2025 | Natural Gas : 98.7% Distillate Fuel Oil : 1.3% |
| Milton Hydro | SFR Hydro Cor | Milton, NH | ISO New England (ISNE) | 5.6 GWh | Dec 1913 | Dec 2024 | Water |
| 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% |
| Fife Brook | Bear Swamp Power Company LLC | Florida, MA | ISO New England (ISNE) | 29.5 GWh | Sep 1974 | Oct 2024 | Water |
| Newington | Granite Shore Power | Newington, NH | ISO New England (ISNE) | 132.1 GWh | May 1974 | Dec 2025 | Residual Fuel Oil : 60.4% Natural Gas : 39.0% Distillate Fuel Oil : 0.6% |
| Covanta Southeastern Connecticut Company | Covanta Southeastern Connecticut Company | Preston, CT | ISO New England (ISNE) | 116.4 GWh | Nov 1991 | Dec 2025 | Non-biogenic Municipal Solid Waste : 54.1% Biogenic Municipal Solid Waste : 44.3% Distillate Fuel Oil : 1.7% |
| Pepperell Hydro Power Plant | Eagle Creek Renewable Energy, LLC | Pepperell, MA | ISO New England (ISNE) | 3.8 GWh | Dec 1919 | Dec 2025 | Water |
| Penacook Upper Falls Hydro | Briar-Hydro Associates | Penacook, NH | ISO New England (ISNE) | 11.6 GWh | Nov 1986 | Dec 2024 | Water |
| Gilman Mill | Ampersand Gilman Hydro LP | Gilman, VT | ISO New England (ISNE) | 3.9 GWh | Dec 1940 | Dec 2024 | Water |
| Masspower | Masspower | Indian Orchard, MA | ISO New England (ISNE) | 475.7 GWh | Jun 1993 | Dec 2024 | Natural Gas |
| Barker Lower | KEI (Maine) Power Management (III) LLC | Auburn, ME | ISO New England (ISNE) | 3.7 GWh | Mar 1986 | Dec 2024 | Water |
| Errol Hydroelectric Project | Errol Hydroelectric Co LLC | Errol, NH | ISO New England (ISNE) | 15.3 GWh | Oct 1986 | Dec 2024 | Water |
| Algonquin Windsor Locks | Ahlstrom Power Windsor Locks LLC | Windsor Locks, CT | ISO New England (ISNE) | 126.7 GWh | Dec 1989 | Dec 2025 | Natural Gas : 98.3% Distillate Fuel Oil : 1.7% |
| Boott Hydropower | Boott Hydro, LLC - Hybrid | Lowell, MA | ISO New England (ISNE) | 27.5 GWh | Sep 1985 | Dec 2024 | Water |
| Brassua Hydroelectric Project | Brassua Hydroelectric LP | Rockwood, ME | ISO New England (ISNE) | 10.4 GWh | Aug 1989 | Dec 2024 | Water |
| 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 |
| 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% |
| Dodge Falls Associates | Dodge Falls Associates LP | Bath, NH | ISO New England (ISNE) | 29.4 GWh | Nov 1990 | Dec 2024 | Water |
| Benton Falls Associates | Essex Hydro Associates LLC | Benton, ME | ISO New England (ISNE) | 4.3 GWh | Nov 1987 | 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 |
| Rumford Cogeneration | ND Paper, Inc. | Rumford, ME | ISO New England (ISNE) | 423.9 GWh | Dec 1989 | Dec 2025 | Black Liquor : 51.6% Tire-derived Fuels : 22.3% Wood/Wood Waste Solids : 15.8% Bituminous Coal : 7.5% Residual Fuel Oil : 2.0% Sludge Waste : 0.8% |
| 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 |
| Deer Island Treatment Plant | Massachusetts Wtr Rauth-Deer I | Winthrop, MA | ISO New England (ISNE) | 33.4 GWh | Jul 1995 | Dec 2025 | Other Biomass Gas : 83.7% Distillate Fuel Oil : 11.5% Wind : 3.0% Solar : 1.9% |
| 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 |
| 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 |
| Ottauquechee Hydro | Green Mountain Power Corp | N. Hartland, VT | ISO New England (ISNE) | 978.0 MWh | Mar 1983 | Dec 2024 | Water |
| Penacook Lower Falls | Briar-Hydro Associates | Boscawen, NH | ISO New England (ISNE) | 16.6 GWh | Jul 1983 | 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 |
| Derby Hydro | McCallum Enterprises I LP | Shelton, CT | ISO New England (ISNE) | 23.9 GWh | Dec 1988 | Dec 2024 | Water |
| Lockwood Hydroelectric Facility | Merimil Ltd Partnership | Waterville, ME | ISO New England (ISNE) | 13.6 GWh | Sep 1985 | 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 |
| Rolfe Canal Hydro | Briar-Hydro Associates | Penacook, NH | ISO New England (ISNE) | 17.3 GWh | Nov 1987 | Dec 2024 | Water |
| Regional Waste Systems | Ecomaine | Portland, ME | ISO New England (ISNE) | 88.5 GWh | May 1988 | Dec 2025 | Non-biogenic Municipal Solid Waste : 54.6% Biogenic Municipal Solid Waste : 44.7% Natural Gas : 0.8% |
| S D Warren Westbrook | Relevate Power Management LLC | Westbrook, ME | ISO New England (ISNE) | 32.7 GWh | Dec 1902 | Dec 2023 | Water |
| Clement Dam Hydro LLC | Eagle Creek Renewable Energy, LLC | Tilton, NH | ISO New England (ISNE) | 8.9 GWh | Nov 1984 | 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 |
| China Mill Hydro | New Hampshire Hydro Associates | Allenstown, NH | ISO New England (ISNE) | 2.8 GWh | Jun 1981 | 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% |
| Pembroke Hydro | Eagle Creek Renewable Energy, LLC | Suncook, NH | ISO New England (ISNE) | 7.4 GWh | Nov 1985 | Dec 2024 | Water |
| Somerset Plant | Sappi Fine Paper North America-Somerset | Skowhegan, ME | ISO New England (ISNE) | 552.1 GWh | Dec 1975 | Dec 2025 | Black Liquor : 45.9% Wood/Wood Waste Solids : 37.6% Natural Gas : 7.7% Tire-derived Fuels : 4.4% Residual Fuel Oil : 3.4% Sludge Waste : 0.7% |
| Boltonville Hydro Associates | Boltonville Hydro Associates | Boltonville, VT | ISO New England (ISNE) | 3.3 GWh | Jun 1984 | Dec 2024 | Water |
| International Paper Woronoco Mill | Eagle Creek Renewable Energy, LLC | Woronoco, MA | ISO New England (ISNE) | 5.4 GWh | Dec 1912 | Dec 2024 | Water |
| Hampton Facility | Foss Manufacturing Company LLC | Hampton, NH | ISO New England (ISNE) | 26.1 GWh | Sep 1978 | Dec 2025 | Natural Gas |
| Blackstone/Tupperware | Blackstone Hydro Inc. | North Smithfield, RI | ISO New England (ISNE) | 2.1 GWh | Dec 1980 | Dec 2025 | Water |
| Stevens Mills Dam | Eagle Creek Renewable Energy, LLC | Franklin, NH | ISO New England (ISNE) | 5.9 GWh | May 1982 | Dec 2024 | Water |
| Newfound Hydroelectric | Eagle Creek Renewable Energy, LLC | Bristol, NH | ISO New England (ISNE) | 4.1 GWh | Nov 1983 | Dec 2024 | Water |
| Gregg Falls | Eagle Creek Renewable Energy, LLC | Goffstown, NH | ISO New England (ISNE) | 8.9 GWh | Nov 1985 | 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 |
| Bucksport Generation LLC | Bucksport Generation LLC | Bucksport, ME | ISO New England (ISNE) | 11.2 GWh | Jun 1965 | Dec 2025 | Natural Gas : 97.5% Distillate Fuel Oil : 2.5% |
| ReEnergy Livermore Falls | ReEnergy Livermore Falls | Livermore Falls, ME | ISO New England (ISNE) | 266.8 GWh | Jul 1992 | Dec 2024 | Wood/Wood Waste Solids |
| MMWAC Resource Recovery Facility | Maine Waste to Energy | Auburn, ME | ISO New England (ISNE) | 10.1 GWh | May 1992 | Dec 2025 | Non-biogenic Municipal Solid Waste : 54.0% Biogenic Municipal Solid Waste : 44.2% Natural Gas : 1.7% |
| 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) | 30.9 GWh | Dec 1984 | Dec 2025 | Water |
Summary of Power Plants By State
Figures are based on December 2025 generation numbers.| State | Rank | Active Plants | Dec 2025 Generation |
|---|---|---|---|
| Alabama | # 7 | 76 | 12,766.12 GWh |
| Alaska | # 48 | 139 | 625.46 GWh |
| Arizona | # 16 | 183 | 8,962.31 GWh |
| Arkansas | # 29 | 114 | 5,525.50 GWh |
| California | # 5 | 1,683 | 14,393.99 GWh |
| Colorado | # 31 | 297 | 4,649.38 GWh |
| Connecticut | # 34 | 162 | 4,087.83 GWh |
| Delaware | # 49 | 33 | 469.96 GWh |
| District of Columbia | # 51 | 16 | 14.80 GWh |
| Florida | # 3 | 333 | 19,379.32 GWh |
| Georgia | # 8 | 248 | 12,492.24 GWh |
| Hawaii | # 46 | 70 | 814.97 GWh |
| Idaho | # 41 | 146 | 2,123.12 GWh |
| Illinois | # 4 | 379 | 17,546.79 GWh |
| Indiana | # 13 | 214 | 9,789.95 GWh |
| Iowa | # 20 | 293 | 7,310.28 GWh |
| Kansas | # 28 | 183 | 5,586.75 GWh |
| Kentucky | # 22 | 60 | 6,716.43 GWh |
| Louisiana | # 17 | 84 | 8,587.03 GWh |
| Maine | # 45 | 215 | 1,484.81 GWh |
| Maryland | # 37 | 203 | 3,225.85 GWh |
| Massachusetts | # 43 | 640 | 2,073.13 GWh |
| Michigan | # 11 | 269 | 11,734.82 GWh |
| Minnesota | # 27 | 764 | 5,712.30 GWh |
| Mississippi | # 24 | 56 | 6,090.79 GWh |
| Missouri | # 23 | 125 | 6,623.76 GWh |
| State | Rank | Active Plants | Dec 2025 Generation |
|---|---|---|---|
| Montana | # 40 | 70 | 2,639.28 GWh |
| Nebraska | # 36 | 125 | 3,667.32 GWh |
| Nevada | # 38 | 114 | 3,217.22 GWh |
| New Hampshire | # 44 | 56 | 1,878.83 GWh |
| New Jersey | # 30 | 387 | 5,182.27 GWh |
| New Mexico | # 35 | 142 | 3,818.41 GWh |
| New York | # 10 | 950 | 11,800.05 GWh |
| North Carolina | # 9 | 904 | 12,153.04 GWh |
| North Dakota | # 33 | 58 | 4,218.72 GWh |
| Ohio | # 6 | 198 | 13,425.53 GWh |
| Oklahoma | # 18 | 141 | 7,637.23 GWh |
| Oregon | # 21 | 272 | 6,788.64 GWh |
| Pennsylvania | # 2 | 252 | 22,539.49 GWh |
| Rhode Island | # 47 | 100 | 775.70 GWh |
| South Carolina | # 15 | 207 | 8,967.44 GWh |
| South Dakota | # 42 | 52 | 2,122.20 GWh |
| Tennessee | # 19 | 88 | 7,328.17 GWh |
| Texas | # 1 | 947 | 46,150.81 GWh |
| Utah | # 39 | 125 | 2,845.12 GWh |
| Vermont | # 50 | 116 | 189.85 GWh |
| Virginia | # 14 | 237 | 9,421.16 GWh |
| Washington | # 12 | 135 | 10,635.09 GWh |
| West Virginia | # 26 | 39 | 5,763.55 GWh |
| Wisconsin | # 25 | 243 | 5,804.32 GWh |
| Wyoming | # 32 | 70 | 4,436.68 GWh |