Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Ocean State Power | Ocean State Power Co | Harrisville, RI | ISO New England (ISNE) | 1.3 TWh | Nov 1990 | Dec 2023 | Natural Gas : 99.6% |
| Collins Facility | Elevate Power Management LLC | Wilbraham, MA | ISO New England (ISNE) | 6.8 GWh | Feb 1985 | Dec 2023 | Water |
| Upper Barker | KEI (Maine) Power Management (III) LLC | Auburn, ME | ISO New England (ISNE) | 6.6 GWh | Apr 1987 | Dec 2023 | Water |
| Mechanic Falls | KEI (Maine) Power Management (IV) LLC | Mechanic Falls, ME | ISO New England (ISNE) | 3.0 GWh | Mar 1986 | Dec 2023 | Water |
| Pittsfield Hydro | KEI (Maine) Power Management (II) LLC | Burnham, ME | ISO New England (ISNE) | 5.7 GWh | Jun 1986 | Dec 2023 | Water |
| Great Lakes Hydro America - ME | Great Lakes Hydro America LLC | Millinocket, ME | ISO New England (ISNE) | 737.2 GWh | Jun 1917 | Dec 2023 | Water |
| Hydro Kennebec Project | Hydro Kennebec LLC | Winslow, ME | ISO New England (ISNE) | 69.6 GWh | Dec 1988 | Dec 2023 | Water |
| Gillette SBMC | The Gillette Company | Boston, MA | ISO New England (ISNE) | 60.0 GWh | Jan 1971 | Mar 2025 | Natural Gas : 99.9% |
| Erving Paper Mills | Erving Paper Mills Inc | Erving, MA | ISO New England (ISNE) | 42.8 GWh | Nov 2013 | Mar 2025 | Natural Gas : 98.0% Distillate Fuel Oil : 2.0% |
| Pfizer Groton Plant | Pfizer Inc | Groton, CT | ISO New England (ISNE) | 80.2 GWh | Dec 1947 | Mar 2025 | Natural Gas : 94.7% Distillate Fuel Oil : 5.3% |
| Pumpkin Hill | KEI (Maine) Power Management (II) LLC | Lowell, ME | ISO New England (ISNE) | 5.5 GWh | Feb 1987 | Dec 2023 | Water |
| Salmon Falls | Green Mountain Power Corp | South Berwick, ME | ISO New England (ISNE) | 4.9 GWh | Jun 1986 | Dec 2023 | Water |
| Somersworth Lower Great Dam | Green Mountain Power Corp | Somersworth, NH | ISO New England (ISNE) | 5.0 GWh | Jun 1985 | Dec 2023 | Water |
| Mass Inst Tech Cntrl Utilities/Cogen Plt | Massachusetts Inst of Tech | Cambridge, MA | ISO New England (ISNE) | 204.5 GWh | May 1995 | Dec 2023 | Natural Gas |
| Huntington Falls | Green Mountain Power Corp | Weybridge, VT | ISO New England (ISNE) | 33.3 GWh | Sep 1988 | Dec 2023 | Water |
| Pejepscot Hydroelectric Project | Topsham Hydro Partners | Topsham, ME | ISO New England (ISNE) | 70.6 GWh | Oct 1987 | Dec 2023 | Water |
| Wellesley College Central Utility Plant | Wellesley College | Wellesley, MA | ISO New England (ISNE) | 480.2 MWh | May 1985 | Dec 2023 | Natural Gas |
| Pontook Hydro Facility | Pontook Operating LP | Dummer, NH | ISO New England (ISNE) | 57.8 GWh | Nov 1986 | Dec 2023 | Water |
| Wheelabrator Concord Facility | Wheelabrator Environmental Systems | Concord, NH | ISO New England (ISNE) | 93.3 GWh | Mar 1989 | Mar 2025 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| Weybridge | Green Mountain Power Corp | Weybridge, VT | ISO New England (ISNE) | 16.0 GWh | Jan 1951 | Dec 2023 | Water |
| Berlin 5 | Green Mountain Power Corp | Berlin, VT | ISO New England (ISNE) | 927.0 MWh | May 1972 | Mar 2025 | Kerosene |
| Silver Lake (VT) | Green Mountain Power Corp | Salisbury, VT | ISO New England (ISNE) | 6.6 GWh | Jan 1917 | Dec 2023 | Water |
| Salisbury | Green Mountain Power Corp | Salisbury, VT | ISO New England (ISNE) | 4.5 GWh | Jan 1917 | Dec 2023 | Water |
| Rutland | Green Mountain Power Corp | Rutland City, VT | ISO New England (ISNE) | 84.0 MWh | Nov 1962 | Mar 2024 | Distillate Fuel Oil |
| Pittsford | Green Mountain Power Corp | Pittsford, VT | ISO New England (ISNE) | 10.4 GWh | Jan 1914 | Dec 2023 | Water |
| Peterson | Green Mountain Power Corp | Milton, VT | ISO New England (ISNE) | 36.3 GWh | Jan 1948 | Dec 2023 | Water |
| Comerford | Great River Hydro, LLC | Monroe, NH | ISO New England (ISNE) | 405.1 GWh | Aug 1930 | Dec 2023 | Water |
| West Charleston | Barton Village, Inc | West Charleston, VT | ISO New England (ISNE) | 6.3 GWh | Jun 1931 | Dec 2023 | Water |
| Manchester Street | Manchester Street, LLC. | Providence, RI | ISO New England (ISNE) | 1.5 TWh | Aug 1995 | Mar 2025 | Natural Gas : 98.2% Distillate Fuel Oil : 1.8% |
| Colchester 16 | Green Mountain Power Corp | Colchester, VT | ISO New England (ISNE) | 4.0 MWh | Sep 1965 | Dec 2023 | Distillate Fuel Oil |
| Essex Junction 19 | Green Mountain Power Corp | Essex Junction, VT | ISO New England (ISNE) | 37.6 GWh | Dec 1916 | Mar 2025 | Water : 99.6% |
| Marshfield 6 | Green Mountain Power Corp | Marshfield, VT | ISO New England (ISNE) | 9.1 GWh | Dec 1926 | Dec 2023 | Water |
| Middlesex 2 | Green Mountain Power Corp | Moretown, VT | ISO New England (ISNE) | 14.1 GWh | Dec 1927 | Dec 2023 | Water |
| Newport | Great Bay Hydro Corp | Newport, VT | ISO New England (ISNE) | 19.8 GWh | Dec 1935 | Dec 2023 | Water |
| West Danville 15 | Green Mountain Power Corp | Danville, VT | ISO New England (ISNE) | 4.5 GWh | Dec 1916 | Dec 2023 | Water |
| Bellows Falls | Great River Hydro, LLC | Bellow Falls, VT | ISO New England (ISNE) | 304.5 GWh | Feb 1928 | Dec 2023 | Water |
| Canaan | Central Rivers Power NH, LLC | Canaan, VT | ISO New England (ISNE) | 7.3 GWh | Jul 1927 | Dec 2023 | Water |
| Harriman | Great River Hydro, LLC | Whitingham, VT | ISO New England (ISNE) | 125.9 GWh | Apr 1924 | Dec 2023 | Water |
| Smith (VT) | Green Mountain Power Corp | Bradford, VT | ISO New England (ISNE) | 4.0 GWh | Nov 1982 | Dec 2023 | Water |
| Deerfield 3 | Great River Hydro, LLC | Buckland, MA | ISO New England (ISNE) | 34.4 GWh | Jul 1912 | Dec 2023 | Water |
| Stony Brook | Massachusetts Mun Wholes Electric Co | Ludlow, MA | ISO New England (ISNE) | 64.7 GWh | Oct 1981 | Mar 2025 | Distillate Fuel Oil : 74.1% Natural Gas : 25.9% |
| Turners Falls | FirstLight Power Resources, Inc. - MA | Montague, MA | ISO New England (ISNE) | 13.9 GWh | Dec 1904 | Dec 2023 | Water |
| Indian Orchard | Central Rivers Power MA, LLC | Indian Orchard, MA | ISO New England (ISNE) | 10.6 GWh | Dec 1927 | Dec 2023 | Water |
| Dwight | Central Rivers Power MA, LLC | Chicopee, MA | ISO New England (ISNE) | 9.8 GWh | Dec 1919 | Dec 2023 | Water |
| West Tisbury Generating Facility | Vineyard Reliability LLC | West Tisbury, MA | ISO New England (ISNE) | 1.8 GWh | Dec 1974 | Dec 2023 | Distillate Fuel Oil |
| Deerfield 2 | Great River Hydro, LLC | Conway, MA | ISO New England (ISNE) | 39.4 GWh | Jul 1913 | Dec 2023 | Water |
| New Haven Harbor | Generation Bridge II Connecticut, LLC | New Haven, CT | ISO New England (ISNE) | 44.9 GWh | Jun 1975 | Feb 2025 | Natural Gas : 53.7% Residual Fuel Oil : 33.6% Kerosene : 10.8% Distillate Fuel Oil : 1.9% |
| Ascutney | Green Mountain Power Corp | Weatherfield, VT | ISO New England (ISNE) | 192.0 MWh | Jul 1961 | Feb 2025 | Distillate Fuel Oil |
| Sherman | Great River Hydro, LLC | Rowe, MA | ISO New England (ISNE) | 35.5 GWh | Nov 1926 | Dec 2023 | Water |
| S C Moore | Great River Hydro, LLC | Littleton, NH | ISO New England (ISNE) | 327.6 GWh | Dec 1956 | Dec 2023 | Water |
| Clark Falls | Green Mountain Power Corp | Milton, VT | ISO New England (ISNE) | 19.8 GWh | Jan 1937 | Dec 2023 | Water |
| Fairfax Falls | Green Mountain Power Corp | Fairfax, VT | ISO New England (ISNE) | 23.2 GWh | Jan 1919 | Dec 2023 | Water |
| Eastman Falls | Central Rivers Power NH, LLC | Franklin, NH | ISO New England (ISNE) | 33.2 GWh | Jul 1937 | Dec 2023 | Water |
| Ayers Island | Central Rivers Power NH, LLC | Bristol, NH | ISO New England (ISNE) | 54.4 GWh | Jul 1925 | Dec 2023 | Water |
| Glen | Green Mountain Power Corp | Rutland, VT | ISO New England (ISNE) | 8.2 GWh | Jul 1920 | Dec 2023 | Water |
| Amoskeag | Central Rivers Power NH, LLC | Manchester, NH | ISO New England (ISNE) | 113.9 GWh | Jul 1922 | Dec 2023 | Water |
| Wilder | Great River Hydro, LLC | Hartford, VT | ISO New England (ISNE) | 192.4 GWh | Oct 1950 | Dec 2023 | Water |
| Lower Middlebury | Green Mountain Power Corp | Middlebury Lower, VT | ISO New England (ISNE) | 4.1 GWh | Jul 1917 | Nov 2023 | Water |
| Milton | Green Mountain Power Corp | Milton, VT | ISO New England (ISNE) | 48.3 GWh | Jan 1929 | Dec 2023 | Water |
| Vernon Dam | Great River Hydro, LLC | Vernon, VT | ISO New England (ISNE) | 190.6 GWh | Jul 1909 | Dec 2023 | Water |
| Merrimack | Granite Shore Power | Bow, NH | ISO New England (ISNE) | 316.7 GWh | Nov 1960 | Mar 2025 | Bituminous Coal : 99.6% |
| Hooksett | Central Rivers Power NH, LLC | Hooksett, NH | ISO New England (ISNE) | 3.0 GWh | Jul 1927 | Dec 2023 | Water |
| White Lake | Granite Shore Power | Tamworth, NH | ISO New England (ISNE) | 552.0 MWh | Jun 1968 | Dec 2023 | Jet Fuel |
| Deerfield 4 | Great River Hydro, LLC | Buckland, MA | ISO New England (ISNE) | 29.0 GWh | Jul 1912 | Dec 2023 | Water |
| Smith (NH) | Central Rivers Power NH, LLC | Berlin, NH | ISO New England (ISNE) | 122.7 GWh | Jul 1948 | Dec 2023 | Water |
| Jackman | Central Rivers Power NH, LLC | Hillsborough, NH | ISO New England (ISNE) | 12.7 GWh | Jan 1926 | Dec 2023 | Water |
| Lost Nation | Granite Shore Power | Groveton, NH | ISO New England (ISNE) | 428.0 MWh | Aug 1969 | Dec 2023 | Distillate Fuel Oil |
| Gorham | Central Rivers Power NH, LLC | Gorham, NH | ISO New England (ISNE) | 12.1 GWh | Jul 1917 | Dec 2023 | Water |
| Seabrook | NextEra Energy Seabrook LLC | Seabrook, NH | ISO New England (ISNE) | 9.6 TWh | Jul 1990 | Mar 2025 | Nuclear |
| Schiller | Granite Shore Power | Portsmouth, NH | ISO New England (ISNE) | 536.0 MWh | Sep 1952 | Mar 2025 | Jet Fuel |
| Garvins Falls | Central Rivers Power NH, LLC | Bow, NH | ISO New England (ISNE) | 44.2 GWh | Jul 1925 | Dec 2023 | Water |
| Burlington GT | City of Burlington Electric - (VT) | Burlington, VT | ISO New England (ISNE) | 472.0 MWh | Aug 1971 | Dec 2023 | Distillate Fuel Oil |
| Morrisville | Village of Morrisville - (VT) | Morrisville, VT | ISO New England (ISNE) | 5.6 GWh | Jul 1924 | Dec 2023 | Water |
| Great Falls (VT) | The Town of Lyndon Electric Department | Lyndon, VT | ISO New England (ISNE) | 3.4 GWh | Jul 1915 | Dec 2023 | Water |
| Messalonskee 3 | Messalonskee Stream Hydro LLC | Oakland, ME | ISO New England (ISNE) | 7.3 GWh | Dec 1917 | Dec 2023 | Water |
| Boatlock | City of Holyoke Gas and Electric Dept. | Holyoke, MA | ISO New England (ISNE) | 21.3 GWh | Dec 1920 | Dec 2023 | Water |
| Exelon Medway LLC | Constellation Power, Inc | Medway, MA | ISO New England (ISNE) | 3.7 GWh | Jun 1970 | Dec 2023 | Distillate Fuel Oil |
| Putts Bridge | Central Rivers Power MA, LLC | Ludlow, MA | ISO New England (ISNE) | 22.2 GWh | Dec 1917 | Dec 2023 | Water |
| Kendall Square Station | Kendall Green Energy, LLC | Cambridge, MA | ISO New England (ISNE) | 1.5 TWh | May 1949 | Mar 2025 | Natural Gas : 99.0% Distillate Fuel Oil : 1.0% |
| Oak Bluffs Diesel Generating Facility | Vineyard Reliability LLC | Oak Bluffs, MA | ISO New England (ISNE) | 1.3 GWh | Dec 1968 | Dec 2023 | Distillate Fuel Oil |
| Canal | Canal Generating LLC | Sandwich, MA | ISO New England (ISNE) | 305.0 GWh | May 1968 | Mar 2025 | Natural Gas : 73.0% Residual Fuel Oil : 24.5% Distillate Fuel Oil : 2.5% |
| Gardners Falls | Central Rivers Power MA, LLC | Buckland, MA | ISO New England (ISNE) | 17.7 GWh | Dec 1913 | Dec 2023 | Water |
| Cobble Mountain | City of Holyoke Gas and Electric Dept. | Granville, MA | ISO New England (ISNE) | 10.5 GWh | Dec 1929 | Dec 2023 | Water |
| Cabot | FirstLight Power Resources, Inc. - MA | Montague, MA | ISO New England (ISNE) | 394.4 GWh | Dec 1914 | Dec 2023 | Water |
| Deerfield 5 | Great River Hydro, LLC | Florida, MA | ISO New England (ISNE) | 63.1 GWh | Sep 1974 | Dec 2023 | Water |
| Riverside Holyoke | City of Holyoke Gas and Electric Dept. | Holyoke, MA | ISO New England (ISNE) | 40.4 GWh | Dec 1905 | Dec 2023 | Water |
| Potter Station 2 | Town of Braintree - (MA) | Braintree, MA | ISO New England (ISNE) | 32.3 GWh | Jun 1963 | Dec 2023 | Natural Gas : 88.2% Distillate Fuel Oil : 11.8% |
| Hadley Falls | City of Holyoke Gas and Electric Dept. | Holyoke, MA | ISO New England (ISNE) | 218.2 GWh | Dec 1951 | Dec 2023 | Water |
| Chemical | City of Holyoke Gas and Electric Dept. | Holyoke, MA | ISO New England (ISNE) | 7.4 GWh | Dec 1934 | Dec 2023 | Water |
| Ellsworth Hydro Station | Brookfield Black Bear Hydro, LLC | Ellsworth, ME | ISO New England (ISNE) | 35.0 GWh | Jun 1924 | Dec 2023 | Water |
| Messalonskee 2 (Oakland) | Messalonskee Stream Hydro LLC | Oakland, ME | ISO New England (ISNE) | 12.9 GWh | Dec 1923 | Dec 2023 | Water |
| Hiram | Brookfield White Pine Hydro LLC | Hiram, ME | ISO New England (ISNE) | 53.8 GWh | Dec 1916 | Dec 2023 | Water |
| Harris Hydro | Brookfield White Pine Hydro LLC | West Forks, ME | ISO New England (ISNE) | 277.6 GWh | Dec 1953 | Dec 2023 | Water |
| Gulf Island | Brookfield White Pine Hydro LLC | Lewiston, ME | ISO New England (ISNE) | 169.3 GWh | Dec 1925 | Dec 2023 | Water |
| Deer Rips | Brookfield White Pine Hydro LLC | Auburn, ME | ISO New England (ISNE) | 69.3 GWh | Dec 1902 | Dec 2023 | Water |
| Cataract Hydro | Brookfield White Pine Hydro LLC | Saco, ME | ISO New England (ISNE) | 2.0 GWh | Dec 1936 | Dec 2023 | Water |
| Cape Gas Turbine | FPL Energy Cape LLC | Portland, ME | ISO New England (ISNE) | 532.0 MWh | Dec 1969 | Dec 2023 | Distillate Fuel Oil |
| Brunswick Hydro | Brookfield White Pine Hydro LLC | Brunswick, ME | ISO New England (ISNE) | 123.4 GWh | Feb 1982 | Dec 2023 | Water |
| Bonny Eagle | Brookfield White Pine Hydro LLC | Hollis, ME | ISO New England (ISNE) | 45.3 GWh | Dec 1909 | Dec 2023 | Water |
| Stillwater Hydro Station | Brookfield Black Bear Hydro, LLC | Stillwater, ME | ISO New England (ISNE) | 12.1 GWh | Dec 1912 | Dec 2023 | Water |
Summary of Power Plants By State
Figures are based on March 2025 generation numbers.| State | Rank | Active Plants | Mar 2025 Generation |
|---|---|---|---|
| Alabama | # 7 | 75 | 10,399.45 GWh |
| Alaska | # 48 | 137 | 460.30 GWh |
| Arizona | # 16 | 167 | 7,756.35 GWh |
| Arkansas | # 29 | 79 | 4,503.48 GWh |
| California | # 5 | 1,565 | 15,306.94 GWh |
| Colorado | # 30 | 257 | 4,337.74 GWh |
| Connecticut | # 31 | 152 | 3,831.37 GWh |
| Delaware | # 50 | 30 | 183.34 GWh |
| District of Columbia | # 51 | 12 | 15.27 GWh |
| Florida | # 3 | 305 | 18,686.61 GWh |
| Georgia | # 9 | 239 | 9,979.52 GWh |
| Hawaii | # 46 | 67 | 749.10 GWh |
| Idaho | # 43 | 126 | 1,488.21 GWh |
| Illinois | # 4 | 332 | 15,592.21 GWh |
| Indiana | # 12 | 201 | 8,849.97 GWh |
| Iowa | # 20 | 279 | 6,323.45 GWh |
| Kansas | # 25 | 157 | 5,176.23 GWh |
| Kentucky | # 24 | 56 | 5,180.56 GWh |
| Louisiana | # 18 | 81 | 6,708.43 GWh |
| Maine | # 45 | 157 | 1,313.29 GWh |
| Maryland | # 39 | 179 | 2,427.73 GWh |
| Massachusetts | # 42 | 597 | 1,608.56 GWh |
| Michigan | # 10 | 263 | 9,898.87 GWh |
| Minnesota | # 26 | 736 | 5,082.27 GWh |
| Mississippi | # 19 | 53 | 6,374.07 GWh |
| Missouri | # 21 | 116 | 5,776.95 GWh |
| State | Rank | Active Plants | Mar 2025 Generation |
|---|---|---|---|
| Montana | # 40 | 67 | 2,309.70 GWh |
| Nebraska | # 37 | 117 | 3,008.88 GWh |
| Nevada | # 34 | 109 | 3,381.98 GWh |
| New Hampshire | # 44 | 56 | 1,374.49 GWh |
| New Jersey | # 28 | 371 | 4,514.07 GWh |
| New Mexico | # 35 | 138 | 3,378.20 GWh |
| New York | # 8 | 818 | 10,278.94 GWh |
| North Carolina | # 11 | 877 | 9,080.20 GWh |
| North Dakota | # 33 | 57 | 3,690.67 GWh |
| Ohio | # 6 | 190 | 11,252.37 GWh |
| Oklahoma | # 17 | 129 | 6,972.70 GWh |
| Oregon | # 22 | 254 | 5,543.74 GWh |
| Pennsylvania | # 2 | 237 | 19,658.43 GWh |
| Rhode Island | # 47 | 94 | 622.24 GWh |
| South Carolina | # 14 | 194 | 8,606.12 GWh |
| South Dakota | # 41 | 52 | 1,945.10 GWh |
| Tennessee | # 23 | 85 | 5,241.09 GWh |
| Texas | # 1 | 818 | 43,194.33 GWh |
| Utah | # 36 | 114 | 3,056.84 GWh |
| Vermont | # 49 | 112 | 230.44 GWh |
| Virginia | # 15 | 214 | 8,465.83 GWh |
| Washington | # 13 | 127 | 8,662.62 GWh |
| West Virginia | # 38 | 36 | 2,977.95 GWh |
| Wisconsin | # 27 | 222 | 4,571.79 GWh |
| Wyoming | # 32 | 69 | 3,817.24 GWh |