Directory of Power Plants in Maine
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Charles E Monty | Brookfield White Pine Hydro LLC | Lewiston, ME | ISO New England (ISNE) | 176.6 GWh | Dec 1989 | Dec 2023 | Water |
| Rumford Cogeneration | ND Paper, Inc. | Rumford, ME | ISO New England (ISNE) | 391.4 GWh | Dec 1989 | Aug 2024 | Black Liquor : 51.2% Tire-derived Fuels : 23.1% Wood/Wood Waste Solids : 13.6% Bituminous Coal : 9.0% Residual Fuel Oil : 2.4% Sludge Waste : 0.8% |
| ReEnergy Stratton LLC | ReEnergy Stratton LLC | Stratton, ME | ISO New England (ISNE) | 177.1 GWh | Oct 1989 | Dec 2023 | Wood/Wood Waste Solids |
| Brassua Hydroelectric Project | Brassua Hydroelectric LP | Rockwood, ME | ISO New England (ISNE) | 19.9 GWh | Aug 1989 | Dec 2023 | Water |
| Worumbo Hydro Station | Eagle Creek Renewable Energy, LLC | Lisbon Falls, ME | ISO New England (ISNE) | 104.8 GWh | Jan 1989 | Dec 2023 | Water |
| Hydro Kennebec Project | Hydro Kennebec LLC | Winslow, ME | ISO New England (ISNE) | 69.6 GWh | Dec 1988 | Dec 2023 | Water |
| Regional Waste Systems | Ecomaine | Portland, ME | ISO New England (ISNE) | 80.9 GWh | May 1988 | Aug 2024 | Non-biogenic Municipal Solid Waste : 54.4% Biogenic Municipal Solid Waste : 44.5% Natural Gas : 1.0% |
| Aziscohos Hydroelectric Project | Brookfield White Pine Hydro LLC | Wilson Mills, ME | ISO New England (ISNE) | 38.7 GWh | May 1988 | Dec 2023 | Water |
| West Enfield Hydro | Brookfield Black Bear Hydro, LLC | West Enfield, ME | ISO New England (ISNE) | 100.4 GWh | Mar 1988 | Dec 2023 | Water |
| Benton Falls Associates | Essex Hydro Associates LLC | Benton, ME | ISO New England (ISNE) | 17.3 GWh | Nov 1987 | Dec 2023 | Water |
| Indeck West Enfield Energy Center | Stored Solar J&WE | West Enfield, ME | ISO New England (ISNE) | 13.5 GWh | Nov 1987 | Dec 2023 | Wood/Wood Waste Solids : 99.7% |
| Penobscot Energy Recovery | ESOCO Orrington LLC | Orrington, ME | ISO New England (ISNE) | 31.5 GWh | Oct 1987 | May 2023 | Non-biogenic Municipal Solid Waste : 54.1% Biogenic Municipal Solid Waste : 44.3% Distillate Fuel Oil : 1.6% |
| Pejepscot Hydroelectric Project | Topsham Hydro Partners | Topsham, ME | ISO New England (ISNE) | 70.6 GWh | Oct 1987 | 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 |
| Twin Rivers Paper Co LLC | Twin Rivers Paper Co LLC | Madawaska, ME | (NBSO) | 106.0 GWh | Apr 1987 | Aug 2024 | Purchased Steam |
| 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 |
| Pittsfield Hydro | KEI (Maine) Power Management (II) LLC | Burnham, ME | ISO New England (ISNE) | 5.7 GWh | Jun 1986 | Dec 2023 | Water |
| Barker Lower | KEI (Maine) Power Management (III) LLC | Auburn, ME | ISO New England (ISNE) | 8.1 GWh | Mar 1986 | 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 |
| Lockwood Hydroelectric Facility | Merimil Ltd Partnership | Waterville, ME | ISO New England (ISNE) | 23.7 GWh | Sep 1985 | Dec 2023 | Water |
| Gardiner | KEI (Maine) Power Management (III) LLC | Gardiner, ME | ISO New England (ISNE) | 6.7 GWh | Jun 1985 | Dec 2023 | Water |
| Otis Hydro | Eagle Creek Renewable Energy, LLC | Livermore Falls, ME | ISO New England (ISNE) | 31.2 GWh | Dec 1984 | Aug 2024 | Water |
| Brunswick Hydro | Brookfield White Pine Hydro LLC | Brunswick, ME | ISO New England (ISNE) | 123.4 GWh | Feb 1982 | Dec 2023 | Water |
| International Paper Riley Hydro | Eagle Creek Renewable Energy, LLC | Jay, ME | ISO New England (ISNE) | 5.9 GWh | Nov 1981 | Dec 2023 | Water |
| Robbins Lumber | Robbins Lumber Inc | Searsmont, ME | ISO New England (ISNE) | 97.0 MWh | Dec 1980 | Dec 2023 | Distillate Fuel Oil |
| Somerset Plant | Sappi Fine Paper North America-Somerset | Skowhegan, ME | ISO New England (ISNE) | 485.5 GWh | Dec 1975 | Aug 2024 | Black Liquor : 46.4% Wood/Wood Waste Solids : 37.3% Tire-derived Fuels : 6.7% Natural Gas : 6.2% Residual Fuel Oil : 2.3% Sludge Waste : 1.0% |
| Cape Gas Turbine | FPL Energy Cape LLC | Portland, ME | ISO New England (ISNE) | 532.0 MWh | Dec 1969 | Dec 2023 | Distillate Fuel Oil |
| Red Shield Envir Old Town Facility | ND Paper, Inc. | Old Town, ME | ISO New England (ISNE) | 66.3 GWh | Jun 1965 | Apr 2023 | Wood/Wood Waste Solids : 63.4% Black Liquor : 22.1% Natural Gas : 11.8% Residual Fuel Oil : 2.7% |
| Bucksport Generation LLC | Bucksport Generation LLC | Bucksport, ME | ISO New England (ISNE) | 21.0 GWh | Jun 1965 | Aug 2024 | Natural Gas : 98.9% Distillate Fuel Oil : 1.1% |
| Androscoggin Mill | Pixelle Androscoggin LLC | Jay, ME | ISO New England (ISNE) | 69.3 GWh | Dec 1963 | Mar 2023 | Natural Gas : 51.1% Black Liquor : 37.4% Wood/Wood Waste Solids : 11.6% |
| William F Wyman Hybrid | FPL Energy Wyman LLC | Yarmouth, ME | ISO New England (ISNE) | 26.4 GWh | Dec 1956 | Aug 2024 | Residual Fuel Oil : 98.9% Distillate Fuel Oil : 1.1% |
| Harris Hydro | Brookfield White Pine Hydro LLC | West Forks, ME | ISO New England (ISNE) | 277.6 GWh | Dec 1953 | Dec 2023 | Water |
| Anson Abenaki Hydros | Eagle Creek Renewable Energy, LLC | Madison, ME | ISO New England (ISNE) | 145.1 GWh | Dec 1949 | Dec 2023 | Water |
| Skelton | Brookfield White Pine Hydro LLC | Dayton, ME | ISO New England (ISNE) | 137.1 GWh | Dec 1947 | Dec 2023 | Water |
| Squa Pan Hydro Station | Algonquin Northern Maine | Masardis, ME | (NBSO) | 934.9 MWh | Nov 1941 | Aug 2023 | Water |
| Milford Hydro Station | Brookfield Black Bear Hydro, LLC | Milford, ME | ISO New England (ISNE) | 53.0 GWh | Jun 1941 | Dec 2023 | Water |
| Williams Hydro | Brookfield White Pine Hydro LLC | Solon, ME | ISO New England (ISNE) | 97.2 GWh | Dec 1938 | Dec 2023 | Water |
| Cataract Hydro | Brookfield White Pine Hydro LLC | Saco, ME | ISO New England (ISNE) | 2.0 GWh | Dec 1936 | Dec 2023 | Water |
| Messalonskee 5 | Messalonskee Stream Hydro LLC | Waterville, ME | ISO New England (ISNE) | 5.1 GWh | Dec 1934 | Dec 2023 | Water |
| Wyman Hydro | Brookfield White Pine Hydro LLC | Bingham, ME | ISO New England (ISNE) | 501.6 GWh | Dec 1929 | Dec 2023 | Water |
| Gulf Island | Brookfield White Pine Hydro LLC | Lewiston, ME | ISO New England (ISNE) | 169.3 GWh | Dec 1925 | Dec 2023 | Water |
| North Gorham | Brookfield White Pine Hydro LLC | Gorham, ME | ISO New England (ISNE) | 9.4 GWh | Dec 1924 | 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 |
| Medway Hydro | Brookfield Black Bear Hydro, LLC | Medway, ME | ISO New England (ISNE) | 27.5 GWh | Dec 1922 | Dec 2023 | Water |
| Weston Hydro | Brookfield White Pine Hydro LLC | Skowhegan, ME | ISO New England (ISNE) | 88.4 GWh | Dec 1919 | Dec 2023 | Water |
| Messalonskee 3 | Messalonskee Stream Hydro LLC | Oakland, ME | ISO New England (ISNE) | 7.3 GWh | Dec 1917 | Dec 2023 | Water |
| Rumford Falls Hydro Facility | Brookfield Power New England | Rumford, ME | ISO New England (ISNE) | 290.2 GWh | Dec 1917 | 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 |
| Hiram | Brookfield White Pine Hydro LLC | Hiram, ME | ISO New England (ISNE) | 53.8 GWh | Dec 1916 | 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 |
| Shawmut | Brookfield White Pine Hydro LLC | Shawmut, ME | ISO New England (ISNE) | 36.7 GWh | Dec 1912 | Dec 2023 | Water |
| International Paper Jay Hydro | Eagle Creek Renewable Energy, LLC | Jay, ME | ISO New England (ISNE) | 7.1 GWh | Dec 1911 | Sep 2023 | Water |
| Bonny Eagle | Brookfield White Pine Hydro LLC | Hollis, ME | ISO New England (ISNE) | 45.3 GWh | Dec 1909 | Dec 2023 | Water |
| International Paper Livermore Hydro | Eagle Creek Renewable Energy, LLC | Livermore Falls, ME | ISO New England (ISNE) | 10.2 GWh | Dec 1909 | Dec 2023 | Water |
| Woodland Pulp, LLC | Woodland Pulp LLC | Baileyville, ME | (NBSO) | 366.6 GWh | May 1906 | Dec 2023 | Black Liquor : 41.9% Natural Gas : 33.3% Water : 17.5% Wood/Wood Waste Solids : 7.3% |
| West Buxton | Brookfield White Pine Hydro LLC | Buxton, ME | ISO New England (ISNE) | 35.7 GWh | Dec 1903 | Dec 2023 | Water |
| Deer Rips | Brookfield White Pine Hydro LLC | Auburn, ME | ISO New England (ISNE) | 69.3 GWh | Dec 1902 | Dec 2023 | Water |
| S D Warren Westbrook | Elevate Power Management LLC | Westbrook, ME | ISO New England (ISNE) | 32.7 GWh | Dec 1902 | Dec 2023 | Water |
| Three Corners Solar | Three Corners Solar, LLC | Unity, ME | ISO New England (ISNE) | 48.3 GWh | - | Aug 2024 | Solar |
Browse Power Plants By Maine Counties
Figures are based on December 2023 generation numbers.| County | State Rank | Active Plants | Dec 2023 Generation |
|---|---|---|---|
| Lincoln County, ME | # 16 | 3 | 2.5 GWh |
| Knox County, ME | # 15 | 5 | 17.4 GWh |
| Sagadahoc County, ME | # 14 | 4 | 72.1 GWh |
| Waldo County, ME | # 13 | 6 | 106.3 GWh |
| Kennebec County, ME | # 12 | 24 | 214.5 GWh |
| York County, ME | # 11 | 19 | 325.7 GWh |
| Hancock County, ME | # 10 | 13 | 449.3 GWh |
| Piscataquis County, ME | # 9 | 4 | 457.9 GWh |
| County | State Rank | Active Plants | Dec 2023 Generation |
|---|---|---|---|
| Washington County, ME | # 8 | 7 | 518.9 GWh |
| Aroostook County, ME | # 7 | 26 | 537.7 GWh |
| Androscoggin County, ME | # 6 | 28 | 801.0 GWh |
| Franklin County, ME | # 5 | 16 | 827.3 GWh |
| Oxford County, ME | # 4 | 18 | 1.4 TWh |
| Somerset County, ME | # 3 | 35 | 1.8 TWh |
| Penobscot County, ME | # 2 | 43 | 2.4 TWh |
| Cumberland County, ME | # 1 | 20 | 3.4 TWh |