Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Deer Rips | Brookfield White Pine Hydro LLC | Auburn, ME | ISO New England (ISNE) | 50.8 GWh | Dec 1902 | Dec 2025 | Water |
| Cataract Hydro | Brookfield White Pine Hydro LLC | Saco, ME | ISO New England (ISNE) | 23.1 GWh | Dec 1936 | Dec 2025 | Water |
| Cape Gas Turbine | FPL Energy Cape LLC | Portland, ME | ISO New England (ISNE) | 752.0 MWh | Dec 1969 | Dec 2025 | Distillate Fuel Oil |
| Brunswick Hydro | Brookfield White Pine Hydro LLC | Brunswick, ME | ISO New England (ISNE) | 69.6 GWh | Feb 1982 | Dec 2025 | Water |
| Bonny Eagle | Brookfield White Pine Hydro LLC | Hollis, ME | ISO New England (ISNE) | 31.3 GWh | Dec 1909 | Dec 2025 | Water |
| Chemical | City of Holyoke Gas and Elec Dept - (MA) | Holyoke, MA | ISO New England (ISNE) | 5.1 GWh | Dec 1934 | Dec 2025 | Water |
| Ellsworth Hydro Station | Brookfield Black Bear Hydro, LLC | Ellsworth, ME | ISO New England (ISNE) | 18.3 GWh | Jun 1924 | Dec 2025 | Water |
| Milford Hydro Station | Brookfield Black Bear Hydro, LLC | Milford, ME | ISO New England (ISNE) | 35.9 GWh | Jun 1941 | Dec 2025 | Water |
| Boatlock | City of Holyoke Gas and Elec Dept - (MA) | Holyoke, MA | ISO New England (ISNE) | 11.6 GWh | Dec 1920 | Dec 2025 | Water |
| China Mill Hydro | New Hampshire Hydro Associates | Allenstown, NH | ISO New England (ISNE) | 2.6 GWh | Jun 1981 | Dec 2025 | Water |
| MMWAC Resource Recovery Facility | Maine Waste to Energy | Auburn, ME | ISO New England (ISNE) | 7.4 GWh | May 1992 | Aug 2026 | Non-biogenic Municipal Solid Waste : 54.0% Biogenic Municipal Solid Waste : 44.2% Natural Gas : 1.9% |
| Benton Falls Associates | Essex Hydro Associates LLC | Benton, ME | ISO New England (ISNE) | 9.9 GWh | Nov 1987 | Dec 2025 | Water |
| Cosgrove Intake and Power Station | Massachusetts Water Res Auth | Clinton, MA | ISO New England (ISNE) | 646.0 MWh | Dec 1968 | Jan 2025 | Water |
| Dodge Falls Associates | Dodge Falls Associates LP | Bath, NH | ISO New England (ISNE) | 21.6 GWh | Nov 1990 | Dec 2025 | Water |
| Newington | Granite Shore Power | Newington, NH | ISO New England (ISNE) | 135.3 GWh | May 1974 | Aug 2026 | Residual Fuel Oil : 74.0% Natural Gas : 24.3% Distillate Fuel Oil : 1.6% |
| NE Renewable Power West Enfield | Stored Solar J&WE | West Enfield, ME | ISO New England (ISNE) | 42.6 GWh | Nov 1987 | Dec 2025 | Wood/Wood Waste Solids |
| NE Renewable Power Jonesboro | 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% |
| Regional Waste Systems | Ecomaine | Portland, ME | ISO New England (ISNE) | 86.8 GWh | May 1988 | Aug 2026 | Non-biogenic Municipal Solid Waste : 54.6% Biogenic Municipal Solid Waste : 44.7% Natural Gas : 0.7% |
| Milton Hydro | SFR Hydro Cor | Milton, NH | ISO New England (ISNE) | 4.6 GWh | Dec 1913 | Dec 2025 | Water |
| NE Renewable Springfield, LLC | NE Renewable Springfield, LLC | Springfield, NH | ISO New England (ISNE) | 73.3 GWh | Nov 1987 | Dec 2025 | Wood/Wood Waste Solids |
| Oakdale Power Station | Massachusetts Water Res Auth | West Boylston, MA | ISO New England (ISNE) | 1.4 GWh | Apr 1951 | Dec 2025 | Water |
| Deer Island Treatment Plant | Massachusetts Wtr Rauth-Deer I | Winthrop, MA | ISO New England (ISNE) | 31.8 GWh | Jul 1995 | Aug 2026 | Other Biomass Gas : 81.6% Distillate Fuel Oil : 13.8% Wind : 2.8% Solar : 1.8% |
| Pepperell Hydro Power Plant | Eagle Creek Renewable Energy, LLC | Pepperell, MA | ISO New England (ISNE) | 2.2 GWh | Dec 1919 | Aug 2026 | Water |
| Rumford Cogeneration | ND Paper, Inc. | Rumford, ME | ISO New England (ISNE) | 397.1 GWh | Dec 1989 | Aug 2026 | Black Liquor : 55.0% Tire-derived Fuels : 20.3% Wood/Wood Waste Solids : 16.5% Bituminous Coal : 5.8% Residual Fuel Oil : 1.1% Natural Gas : 0.6% Sludge Waste : 0.6% |
| Sheldon Springs Hydroelectric | Central Rivers Power US, LLC | Sheldon Springs, VT | ISO New England (ISNE) | 52.5 GWh | Jun 1988 | Dec 2025 | Water |
| Rumford Falls Hydro Facility | Brookfield Power New England | Rumford, ME | ISO New England (ISNE) | 212.1 GWh | Dec 1917 | Dec 2025 | Water |
| International Paper Riley Hydro | Eagle Creek Renewable Energy, LLC | Jay, ME | ISO New England (ISNE) | 19.7 GWh | Nov 1981 | Dec 2025 | Water |
| Univ of Massachusetts Medical Center | University of Massachusetts Medical | Worcester, MA | ISO New England (ISNE) | 63.3 GWh | Mar 1974 | Dec 2025 | Natural Gas : 99.3% Distillate Fuel Oil : 0.6% |
| Barker Lower | KEI (Maine) Power Management (III) LLC | Auburn, ME | ISO New England (ISNE) | 3.8 GWh | Mar 1986 | Dec 2025 | Water |
| Covanta Southeastern Connecticut Company | Covanta Southeastern Connecticut Company | Preston, CT | ISO New England (ISNE) | 106.2 GWh | Nov 1991 | Aug 2026 | Non-biogenic Municipal Solid Waste : 53.9% Biogenic Municipal Solid Waste : 44.1% Distillate Fuel Oil : 2.0% |
| New Milford Gas Recovery | WM Renewable Energy LLC | New Milford, CT | ISO New England (ISNE) | 4.0 GWh | Apr 2008 | Dec 2025 | Landfill Gas |
| Ottauquechee Hydro | Green Mountain Power Corp | N. Hartland, VT | ISO New England (ISNE) | 2.8 GWh | Mar 1983 | Dec 2025 | Water |
| Central Power Plant | State of Rhode Island | Cranston, RI | ISO New England (ISNE) | 16.0 GWh | Jul 1958 | Jul 2026 | Natural Gas : 98.6% Distillate Fuel Oil : 1.4% |
| International Paper Woronoco Mill | Eagle Creek Renewable Energy, LLC | Woronoco, MA | ISO New England (ISNE) | 6.6 GWh | Dec 1912 | Dec 2025 | Water |
| Boltonville Hydro Associates | Boltonville Hydro Associates | Boltonville, VT | ISO New England (ISNE) | 2.3 GWh | Jun 1984 | Dec 2025 | Water |
| Blackstone/Tupperware | Blackstone Hydro Inc. | North Smithfield, RI | ISO New England (ISNE) | 1.8 GWh | Dec 1980 | Aug 2026 | Water |
| Medical Area Total Energy Plant | MATEP LLC | Boston, MA | ISO New England (ISNE) | 313.7 GWh | Dec 1979 | Dec 2025 | Natural Gas : 99.0% Distillate Fuel Oil : 1.0% |
| Masspower | Masspower | Indian Orchard, MA | ISO New England (ISNE) | 441.7 GWh | Jun 1993 | Dec 2025 | Natural Gas |
| Gilman Mill | Ampersand Gilman Hydro LP | Gilman, VT | ISO New England (ISNE) | 2.2 GWh | Dec 1940 | Dec 2025 | Water |
| Pittsfield Generating LP | Pittsfield Generating Company, LP | Pittsfield, MA | ISO New England (ISNE) | 43.7 GWh | Jun 1990 | Aug 2026 | Natural Gas : 90.2% Distillate Fuel Oil : 9.8% |
| Lawrence Hydroelectric Associates | Central Rivers Power US, LLC | Lawrence, MA | ISO New England (ISNE) | 58.9 GWh | Jun 1981 | Dec 2025 | Water |
| Errol Hydroelectric Project | Errol Hydroelectric Co LLC | Errol, NH | ISO New England (ISNE) | 13.6 GWh | Oct 1986 | Dec 2025 | Water |
| Algonquin Windsor Locks | Ahlstrom Power Windsor Locks LLC | Windsor Locks, CT | ISO New England (ISNE) | 143.1 GWh | Dec 1989 | Aug 2026 | Natural Gas : 92.0% Distillate Fuel Oil : 8.0% |
| International Paper Livermore Hydro | Eagle Creek Renewable Energy, LLC | Livermore Falls, ME | ISO New England (ISNE) | 24.2 GWh | Dec 1909 | Dec 2025 | Water |
| Boott Hydropower | Boott Hydro, LLC - Hybrid | Lowell, MA | ISO New England (ISNE) | 60.8 GWh | Sep 1985 | Dec 2025 | Water |
| Otis Hydro | Eagle Creek Renewable Energy, LLC | Livermore Falls, ME | ISO New England (ISNE) | 40.3 GWh | Dec 1984 | Aug 2026 | Water |
| Brassua Hydroelectric Project | Brassua Hydroelectric LP | Rockwood, ME | ISO New England (ISNE) | 12.6 GWh | Aug 1989 | Aug 2025 | Water |
| NE Renewable Whitefield, LLC | NE Renewable Whitefield, LLC | Whitefield, NH | ISO New England (ISNE) | 59.3 GWh | Feb 1988 | Dec 2025 | Wood/Wood Waste Solids |
| International Paper Jay Hydro | Eagle Creek Renewable Energy, LLC | Jay, ME | ISO New England (ISNE) | 11.7 GWh | Dec 1911 | Dec 2025 | Water |
| M Street Jet | Massachusetts Bay Trans Auth | Boston, MA | ISO New England (ISNE) | 294.0 MWh | Apr 1979 | Dec 2025 | Kerosene |
| Pembroke Hydro | Eagle Creek Renewable Energy, LLC | Suncook, NH | ISO New England (ISNE) | 6.7 GWh | Nov 1985 | Dec 2025 | Water |
| West Enfield Hydro | Brookfield Black Bear Hydro, LLC | West Enfield, ME | ISO New England (ISNE) | 70.2 GWh | Mar 1988 | Dec 2025 | Water |
| Indian Orchard Plant 1 | Solutia Inc-Indian | Springfield, MA | ISO New England (ISNE) | 11.8 GWh | Apr 1985 | Aug 2026 | Natural Gas |
| Ridgewood Providence Power | Rhode Island LFG Genco | Johnston, RI | ISO New England (ISNE) | 3.8 GWh | Jul 2005 | Dec 2025 | Landfill Gas |
| Somerset Plant | Sappi Fine Paper North America-Somerset | Skowhegan, ME | ISO New England (ISNE) | 576.9 GWh | Dec 1975 | Aug 2026 | Black Liquor : 47.6% Wood/Wood Waste Solids : 31.5% Natural Gas : 12.7% Tire-derived Fuels : 4.3% Residual Fuel Oil : 3.1% Sludge Waste : 0.6% |
| Clement Dam Hydro LLC | Eagle Creek Renewable Energy, LLC | Tilton, NH | ISO New England (ISNE) | 7.1 GWh | Nov 1984 | Oct 2025 | Water |
| Anson Abenaki Hydros | Eagle Creek Renewable Energy, LLC | Madison, ME | ISO New England (ISNE) | 100.6 GWh | Dec 1949 | Dec 2025 | Water |
| Mine Falls Generating Station | City of Nashua - (NH) | Nashua, NH | ISO New England (ISNE) | 9.1 GWh | Nov 1985 | Dec 2025 | Water |
| Clark University | Clark University | Worcester, MA | ISO New England (ISNE) | 3.6 GWh | Dec 2012 | Dec 2025 | Natural Gas |
| Worumbo Hydro Station | Eagle Creek Renewable Energy, LLC | Lisbon Falls, ME | ISO New England (ISNE) | 74.3 GWh | Jan 1989 | Dec 2025 | Water |
| Rolfe Canal Hydro | Briar-Hydro Associates | Penacook, NH | ISO New England (ISNE) | 16.3 GWh | Nov 1987 | Dec 2025 | Water |
| ReEnergy Livermore Falls | ReEnergy Livermore Falls | Livermore Falls, ME | ISO New England (ISNE) | 273.8 GWh | Jul 1992 | Dec 2025 | Wood/Wood Waste Solids |
| Cherry Street | Town of Hudson - (MA) | Hudson, MA | ISO New England (ISNE) | 320.0 MWh | Apr 1951 | Dec 2025 | Distillate Fuel Oil : 58.5% Natural Gas : 41.5% |
| Bridgewater Power LP | Bridgewater Power Co LP | Bridgewater, NH | ISO New England (ISNE) | 103.0 GWh | Jul 1987 | Dec 2025 | Wood/Wood Waste Solids : 99.8% |
| Cabot Holyoke | City of Holyoke Gas and Elec Dept - (MA) | Holyoke, MA | ISO New England (ISNE) | 3.0 GWh | Dec 1892 | Dec 2025 | Water |
| Deweys Mill | Green Mountain Power Corp | White River Jct., VT | ISO New England (ISNE) | 1.7 GWh | May 1989 | Dec 2025 | Water |
| Bellingham Cogeneration Facility | Northeast Energy Associates LP | Bellingham, MA | ISO New England (ISNE) | 318.2 GWh | Aug 1991 | Dec 2025 | Natural Gas : 95.7% Distillate Fuel Oil : 4.3% |
| Gregg Falls | Eagle Creek Renewable Energy, LLC | Goffstown, NH | ISO New England (ISNE) | 7.7 GWh | Nov 1985 | Dec 2025 | Water |
| Lower Village Water Power Project | Sugar River Power LLC | Claremont, NH | ISO New England (ISNE) | 3.5 GWh | Apr 1995 | Dec 2025 | Water |
| SEMASS Resource Recovery | SEMASS Partnership | West Wareham, MA | ISO New England (ISNE) | 537.3 GWh | Jun 1988 | Aug 2026 | Non-biogenic Municipal Solid Waste : 53.8% Biogenic Municipal Solid Waste : 44.0% Natural Gas : 2.0% |
| Penacook Upper Falls Hydro | Briar-Hydro Associates | Penacook, NH | ISO New England (ISNE) | 11.1 GWh | Nov 1986 | Dec 2025 | Water |
| Derby Hydro | McCallum Enterprises I LP | Shelton, CT | ISO New England (ISNE) | 22.7 GWh | Dec 1988 | Dec 2025 | Water |
| Newfound Hydroelectric | Eagle Creek Renewable Energy, LLC | Bristol, NH | ISO New England (ISNE) | 3.8 GWh | Nov 1983 | Dec 2025 | Water |
| Penacook Lower Falls | Briar-Hydro Associates | Boscawen, NH | ISO New England (ISNE) | 16.1 GWh | Jul 1983 | Dec 2025 | Water |
| Lockwood Hydroelectric Facility | Merimil Ltd Partnership | Waterville, ME | ISO New England (ISNE) | 13.0 GWh | Sep 1985 | Dec 2025 | Water |
| Hillsborough Hosiery | Silverstreet Hydro | Hillsboro, NH | ISO New England (ISNE) | 2.3 GWh | Nov 1989 | Dec 2025 | Water |
| Bucksport Generation LLC | Bucksport Generation LLC | Bucksport, ME | ISO New England (ISNE) | 26.7 GWh | Jun 1965 | Aug 2026 | Natural Gas : 54.6% Distillate Fuel Oil : 45.4% |
| S D Warren Westbrook | Relevate Power Management LLC | Westbrook, ME | ISO New England (ISNE) | 15.0 GWh | Dec 1902 | Dec 2025 | Water |
| General Electric Aircraft Engines | General Electric Aircraft Engines | Lynn, MA | ISO New England (ISNE) | 2.4 GWh | Dec 1947 | Jul 2026 | Solar |
| Hampton Facility | Foss Manufacturing Company LLC | Hampton, NH | ISO New England (ISNE) | 28.3 GWh | Sep 1978 | Aug 2026 | Natural Gas |
| Stevens Mills Dam | Eagle Creek Renewable Energy, LLC | Franklin, NH | ISO New England (ISNE) | 3.6 GWh | May 1982 | Dec 2025 | Water |
| Waterbury 22 | Green Mountain Power Corp | Waterbury, VT | ISO New England (ISNE) | 11.4 GWh | May 1953 | Dec 2025 | Water |
| Deerfield 2 | Great River Hydro, LLC | Conway, MA | ISO New England (ISNE) | 29.4 GWh | Jul 1913 | Dec 2025 | Water |
| New Haven Steam | Generation Bridge II Connecticut, LLC | New Haven, CT | ISO New England (ISNE) | 149.9 GWh | Jun 1975 | Aug 2026 | Residual Fuel Oil : 51.2% Natural Gas : 35.5% Distillate Fuel Oil : 10.4% Kerosene : 2.8% |
| West Tisbury Generating Facility | Vineyard Reliability LLC | West Tisbury, MA | ISO New England (ISNE) | 5.4 GWh | Dec 1974 | Sep 2025 | Distillate Fuel Oil |
| Sherman | Great River Hydro, LLC | Rowe, MA | ISO New England (ISNE) | 27.8 GWh | Nov 1926 | Dec 2025 | Water |
| Searsburg | Great River Hydro, LLC | Searsburg, VT | ISO New England (ISNE) | 15.9 GWh | Feb 1922 | Dec 2025 | Water |
| Wrightsville Hydro Plant | Washington Electric Coop - (VT) | Montpelier, VT | ISO New England (ISNE) | 374.0 MWh | Aug 1985 | Dec 2025 | Water |
| Proctor | Green Mountain Power Corp | Proctor, VT | ISO New England (ISNE) | 27.8 GWh | Jul 1905 | Dec 2025 | Water |
| Beldens | Green Mountain Power Corp | New Haven, VT | ISO New England (ISNE) | 6.0 GWh | Jul 1913 | Dec 2025 | Water |
| Turners Falls | FirstLight Power Resources, Inc. - MA | Montague, MA | ISO New England (ISNE) | 11.8 GWh | Dec 1904 | Dec 2025 | Water |
| Indian Orchard | Central Rivers Power MA, LLC | Indian Orchard, MA | ISO New England (ISNE) | 3.5 GWh | Dec 1927 | Dec 2025 | Water |
| Dwight | Central Rivers Power MA, LLC | Chicopee, MA | ISO New England (ISNE) | 5.6 GWh | Dec 1919 | Dec 2025 | Water |
| Carver Falls | Green Mountain Power Corp | Hampton, NY | ISO New England (ISNE) | 4.1 GWh | Jan 1922 | Dec 2025 | Water |
| Vergennes 9 | Green Mountain Power Corp | Vergennes, VT | ISO New England (ISNE) | 7.7 GWh | Dec 1911 | Dec 2025 | Water |
| Searsburg Wind Turbine | Green Mountain Power Corp | Searsburg, VT | ISO New England (ISNE) | 9.5 GWh | May 1997 | Aug 2026 | Wind |
| Deerfield 4 | Great River Hydro, LLC | Buckland, MA | ISO New England (ISNE) | 21.5 GWh | Jul 1912 | Dec 2025 | Water |
| Highgate Falls | Village of Swanton - (VT) | Highgate, VT | ISO New England (ISNE) | 32.1 GWh | Jul 1923 | Dec 2025 | Water |
| Mcindoes | Great River Hydro, LLC | Barnet, VT | ISO New England (ISNE) | 39.1 GWh | Dec 1930 | Dec 2025 | Water |
| Shrewsbury | Town of Shrewsbury - (MA) | Shrewsbury, MA | ISO New England (ISNE) | 1.9 GWh | Oct 1969 | Dec 2025 | Distillate Fuel Oil |
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 |