Directory of Power Plants in Maine
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Acton | Acton H Road Solar 1, LLC | Acton, ME | ISO New England (ISNE) | 4.7 GWh | Nov 2021 | Dec 2022 | Solar |
| Androscoggin Energy Center | Pixelle Androscoggin LLC | Jay, ME | ISO New England (ISNE) | 434.5 GWh | Sep 1999 | Dec 2022 | Natural Gas : 98.4% Distillate Fuel Oil : 1.6% |
| Androscoggin Mill | Pixelle Androscoggin LLC | Jay, ME | ISO New England (ISNE) | 104.1 GWh | Dec 1963 | Dec 2022 | Natural Gas : 47.8% Black Liquor : 39.9% Wood/Wood Waste Solids : 12.3% |
| Anson Abenaki Hydros | Eagle Creek Renewable Energy, LLC | Madison, ME | ISO New England (ISNE) | 134.7 GWh | Dec 1949 | Dec 2022 | Water |
| Athens Energy | Athens Energy, LLC | Athens, ME | ISO New England (ISNE) | 62.4 GWh | Sep 2016 | Dec 2022 | Wood/Wood Waste Solids |
| Augusta | Maine DG Solar Augusta, LLC | Augusta, ME | ISO New England (ISNE) | 4.2 GWh | Feb 2022 | Dec 2022 | Solar |
| Augusta PV - BD Solar Augusta LLC | BD Solar Augusta LLC | Augusta, ME | ISO New England (ISNE) | 11.3 GWh | May 2021 | Dec 2022 | Solar |
| Aziscohos Hydroelectric Project | Brookfield White Pine Hydro LLC | Wilson Mills, ME | ISO New England (ISNE) | 28.5 GWh | May 1988 | Dec 2022 | Water |
| Baldwin | Maine DG Solar Baldwin, LLC | West Baldwin, ME | ISO New England (ISNE) | 8.4 GWh | Feb 2022 | Dec 2022 | Solar |
| Barker Lower | KEI (Maine) Power Management (III) LLC | Auburn, ME | ISO New England (ISNE) | 5.3 GWh | Mar 1986 | Dec 2022 | Water |
| BD Solar Ellsworth LLC | BD Solar Hancock North LLC | Augusta, ME | ISO New England (ISNE) | 7.0 GWh | May 2022 | Dec 2022 | Solar |
| BD Solar Hancock LLC | BD Solar Hancock LLC | Augusta, ME | ISO New England (ISNE) | 4.3 GWh | May 2022 | Dec 2022 | Solar |
| Beaver Ridge Wind | Beaver Ridge Wind LLC | Freedom, ME | ISO New England (ISNE) | 13.4 GWh | Oct 2008 | Dec 2022 | Wind |
| Benton Falls Associates | Essex Hydro Associates LLC | Benton, ME | ISO New England (ISNE) | 16.3 GWh | Nov 1987 | Dec 2022 | Water |
| Bingham Wind | Onward Energy | Bingham, ME | ISO New England (ISNE) | 489.5 GWh | Nov 2016 | Feb 2024 | Wind |
| Bonny Eagle | Brookfield White Pine Hydro LLC | Hollis, ME | ISO New England (ISNE) | 43.0 GWh | Dec 1909 | Dec 2022 | Water |
| Brassua Hydroelectric Project | Brassua Hydroelectric LP | Rockwood, ME | ISO New England (ISNE) | 13.5 GWh | Aug 1989 | Dec 2022 | Water |
| Brunswick Hydro | Brookfield White Pine Hydro LLC | Brunswick, ME | ISO New England (ISNE) | 92.9 GWh | Feb 1982 | Dec 2022 | Water |
| Bucksport Generation LLC | Bucksport Generation LLC | Bucksport, ME | ISO New England (ISNE) | 12.4 GWh | Jun 1965 | Feb 2024 | Natural Gas : 97.7% Distillate Fuel Oil : 2.3% |
| Bull Hill Wind Project | Evergreen Wind, LLC | Eastbrook, ME | ISO New England (ISNE) | 106.6 GWh | Sep 2012 | Dec 2022 | Wind |
| BWC Maces Pond LLC | BWC Maces Pond LLC | Rockport, ME | ISO New England (ISNE) | 5.5 GWh | Nov 2021 | Dec 2022 | Solar |
| Canton Mountain Wind | Canton Mountain Wind LLC | Canton, ME | ISO New England (ISNE) | 66.9 GWh | Oct 2017 | Dec 2022 | Wind |
| Cape Gas Turbine | FPL Energy Cape LLC | Portland, ME | ISO New England (ISNE) | 349.7 MWh | Dec 1969 | Dec 2022 | Distillate Fuel Oil |
| Charles E Monty | Brookfield White Pine Hydro LLC | Lewiston, ME | ISO New England (ISNE) | 144.6 GWh | Dec 1989 | Dec 2022 | Water |
| Deer Rips | Brookfield White Pine Hydro LLC | Auburn, ME | ISO New England (ISNE) | 60.9 GWh | Dec 1902 | Dec 2022 | Water |
| Dynamic Corinth (CSG) | MN8 Energy LLC | Corinth, ME | ISO New England (ISNE) | 932.0 MWh | Sep 2022 | Dec 2022 | Solar |
| Dynamic Madison | MN8 Energy LLC | Madison, ME | ISO New England (ISNE) | 3.3 GWh | Jul 2022 | Dec 2022 | Solar |
| Eastern Maine Medical Center | Eastern Maine Medical Center | Bangor, ME | ISO New England (ISNE) | 33.3 GWh | Sep 2006 | Feb 2024 | Natural Gas |
| Ellsworth Hydro Station | Brookfield Black Bear Hydro, LLC | Ellsworth, ME | ISO New England (ISNE) | 30.9 GWh | Jun 1924 | Dec 2022 | Water |
| Fairfield PV - BD Solar Fairfield LLC | BD Solar Fairfield LLC | Fairfield, ME | ISO New England (ISNE) | 9.5 GWh | May 2021 | Dec 2022 | Solar |
| Farmington Solar | Farmington Solar, LLC | Farmington, ME | ISO New England (ISNE) | 130.1 GWh | Sep 2021 | Feb 2024 | Solar |
| Fox Island Wind LLC | Fox Island Wind LLC | Vinalhaven, ME | ISO New England (ISNE) | 8.7 GWh | Oct 2009 | Dec 2022 | Wind |
| Gardiner | KEI (Maine) Power Management (III) LLC | Gardiner, ME | ISO New England (ISNE) | 4.9 GWh | Jun 1985 | Dec 2022 | Water |
| Georges River Energy | Robbins Lumber Inc | Searsmont, ME | ISO New England (ISNE) | 39.0 GWh | Nov 2018 | Dec 2022 | Wood/Wood Waste Solids |
| Great Lakes Hydro America - ME | Great Lakes Hydro America LLC | Millinocket, ME | ISO New England (ISNE) | 594.2 GWh | Jun 1917 | Dec 2022 | Water |
| Gulf Island | Brookfield White Pine Hydro LLC | Lewiston, ME | ISO New England (ISNE) | 136.8 GWh | Dec 1925 | Dec 2022 | Water |
| Hancock Wind Plant | Onward Energy | T22 MD, ME | ISO New England (ISNE) | 125.3 GWh | Nov 2016 | Feb 2024 | Wind |
| Harmony Solar | Maine DG Solar Harmony, LLC | Harmony, ME | ISO New England (ISNE) | 2.9 GWh | Jul 2022 | Dec 2022 | Solar |
| Harris Hydro | Brookfield White Pine Hydro LLC | West Forks, ME | ISO New England (ISNE) | 224.1 GWh | Dec 1953 | Dec 2022 | Water |
| Hartland Solar | Madison Energy Holdings LLC | Hartland, ME | ISO New England (ISNE) | 6.7 GWh | Nov 2021 | Dec 2022 | Solar |
| Hiram | Brookfield White Pine Hydro LLC | Hiram, ME | ISO New England (ISNE) | 41.5 GWh | Dec 1916 | Dec 2022 | Water |
| Hydro Kennebec Project | Hydro Kennebec LLC | Winslow, ME | ISO New England (ISNE) | 50.1 GWh | Dec 1988 | Dec 2022 | Water |
| Indeck Jonesboro Energy Center | Stored Solar J&WE | Jonesboro, ME | ISO New England (ISNE) | 28.8 GWh | Nov 1987 | Jun 2022 | Wood/Wood Waste Solids : 99.3% Gaseous Propane : 0.7% |
| Indeck West Enfield Energy Center | Stored Solar J&WE | West Enfield, ME | ISO New England (ISNE) | 28.1 GWh | Nov 1987 | Dec 2022 | Wood/Wood Waste Solids : 99.9% |
| International Paper Jay Hydro | Eagle Creek Renewable Energy, LLC | Jay, ME | ISO New England (ISNE) | 15.6 GWh | Dec 1911 | Dec 2022 | Water |
| International Paper Livermore Hydro | Eagle Creek Renewable Energy, LLC | Livermore Falls, ME | ISO New England (ISNE) | 37.3 GWh | Dec 1909 | Dec 2022 | Water |
| International Paper Riley Hydro | Eagle Creek Renewable Energy, LLC | Jay, ME | ISO New England (ISNE) | 24.4 GWh | Nov 1981 | Dec 2022 | Water |
| IOS - MEW Phase 1 | IGS ORIX Solar I, LLC | Madison, ME | ISO New England (ISNE) | 6.4 GWh | Dec 2016 | Dec 2022 | Solar |
| Kibby Wind Facility | Helix Maine Wind Development, LLC | Chain of Ponds, ME | ISO New England (ISNE) | 297.4 GWh | Sep 2009 | Feb 2024 | Wind |
| Lewiston Junction Road Solar | NextGrid Peppertree, LLC | Poland, ME | ISO New England (ISNE) | 7.4 GWh | Dec 2021 | Dec 2022 | Solar |
| Lisbon Street Solar | NextGrid Cliffrose, LLC | Lewiston, ME | ISO New England (ISNE) | 2.4 GWh | Mar 2022 | Dec 2022 | Solar |
| Livermore Falls CSG | Livermore Falls CSG, LLC | Livermore Falls, ME | ISO New England (ISNE) | 3.8 GWh | Apr 2022 | Dec 2022 | Solar |
| Lockwood Hydroelectric Facility | Merimil Ltd Partnership | Waterville, ME | ISO New England (ISNE) | 21.9 GWh | Sep 1985 | Dec 2022 | Water |
| Maine Independence Station | Casco Bay Energy Co LLC | Veazie, ME | ISO New England (ISNE) | 683.4 GWh | Apr 2000 | Dec 2022 | Natural Gas |
| Mars Hill Wind Farm Project | Evergreen Wind, LLC | Mars Hill, ME | (NBSO) | 143.7 GWh | Feb 2007 | Dec 2022 | Wind |
| Mechanic Falls | KEI (Maine) Power Management (IV) LLC | Mechanic Falls, ME | ISO New England (ISNE) | 2.6 GWh | Mar 1986 | Dec 2022 | Water |
| Medway Hydro | Brookfield Black Bear Hydro, LLC | Medway, ME | ISO New England (ISNE) | 30.9 GWh | Dec 1922 | Dec 2022 | Water |
| Merrill Road Solar | NextGrid Mangrove, LLC | Lewiston, ME | ISO New England (ISNE) | 6.1 GWh | Feb 2022 | Dec 2022 | Solar |
| Messalonskee 2 (Oakland) | Messalonskee Stream Hydro LLC | Oakland, ME | ISO New England (ISNE) | 9.6 GWh | Dec 1923 | Dec 2022 | Water |
| Messalonskee 3 | Messalonskee Stream Hydro LLC | Oakland, ME | ISO New England (ISNE) | 5.3 GWh | Dec 1917 | Dec 2022 | Water |
| Messalonskee 5 | Messalonskee Stream Hydro LLC | Waterville, ME | ISO New England (ISNE) | 4.5 GWh | Dec 1934 | Dec 2022 | Water |
| Milford Hydro Station | Brookfield Black Bear Hydro, LLC | Milford, ME | ISO New England (ISNE) | 46.4 GWh | Jun 1941 | Dec 2022 | Water |
| Milo CSG | Milo CSG, LLC | Milo, ME | ISO New England (ISNE) | 6.6 GWh | Jan 2022 | Dec 2022 | Solar |
| Milo PV - BD Solar 1 LLC | BD Solar 1 LLC | Milo, ME | ISO New England (ISNE) | 29.3 GWh | May 2021 | Dec 2022 | Solar |
| MMWAC Resource Recovery Facility | Maine Waste to Energy | Auburn, ME | ISO New England (ISNE) | 12.2 GWh | May 1992 | Feb 2024 | Non-biogenic Municipal Solid Waste : 54.3% Biogenic Municipal Solid Waste : 44.4% Natural Gas : 1.2% |
| Monmouth | Maine DG Solar Monmouth, LLC | Monmouth, ME | ISO New England (ISNE) | 8.1 GWh | Feb 2022 | Dec 2022 | Solar |
| Naples | Naples Casco Solar 1, LLC | Naples, ME | ISO New England (ISNE) | 3.4 GWh | Nov 2021 | Dec 2022 | Solar |
| North Gorham | Brookfield White Pine Hydro LLC | Gorham, ME | ISO New England (ISNE) | 9.3 GWh | Dec 1924 | Dec 2022 | Water |
| Oakfield Wind Project | Onward Energy | City of Oakfield, ME | ISO New England (ISNE) | 350.5 GWh | Sep 2015 | Feb 2024 | Wind |
| Orono B | Brookfield Black Bear Hydro, LLC | Orono, ME | ISO New England (ISNE) | 27.6 GWh | Oct 2013 | Dec 2022 | Water |
| Orono Hydro Station | Brookfield Black Bear Hydro, LLC | Orono, ME | ISO New England (ISNE) | 11.2 GWh | Dec 2008 | Dec 2022 | Water |
| Otis Hydro | Eagle Creek Renewable Energy, LLC | Livermore Falls, ME | ISO New England (ISNE) | 24.9 GWh | Dec 1984 | Feb 2024 | Water |
| Oxford PV - BD Solar Oxford LLC | BD Solar Oxford LLC | Oxford, ME | ISO New England (ISNE) | 16.4 GWh | May 2021 | Dec 2022 | Solar |
| Palmyra PV - BD Solar Palmyra LLC | BD Solar Palmyra LLC | Palmyra, ME | ISO New England (ISNE) | 5.6 GWh | May 2022 | Dec 2022 | Solar |
| Passadumkeag Windpark LLC | Southern Power Co | Greenbush, ME | ISO New England (ISNE) | 143.5 GWh | Jun 2016 | Feb 2024 | Wind |
| Pejepscot Hydroelectric Project | Topsham Hydro Partners | Topsham, ME | ISO New England (ISNE) | 66.3 GWh | Oct 1987 | Dec 2022 | Water |
| Penobscot Energy Recovery | ESOCO Orrington LLC | Orrington, ME | ISO New England (ISNE) | 37.2 GWh | Oct 1987 | May 2023 | Non-biogenic Municipal Solid Waste : 54.2% Biogenic Municipal Solid Waste : 44.3% Distillate Fuel Oil : 1.5% |
| Pisgah Mountain Wind | Pisgah Mountain, LLC | Clifton, ME | ISO New England (ISNE) | 32.4 GWh | Nov 2016 | Dec 2022 | Wind |
| Pittsfield Hydro | KEI (Maine) Power Management (II) LLC | Burnham, ME | ISO New England (ISNE) | 4.1 GWh | Jun 1986 | Dec 2022 | Water |
| Pittsfield Solar LLC | Pittsfiled Solar LLC | Pittsfield, ME | ISO New England (ISNE) | 18.4 GWh | Nov 2017 | Dec 2022 | Solar |
| Pumpkin Hill | KEI (Maine) Power Management (II) LLC | Lowell, ME | ISO New England (ISNE) | 4.8 GWh | Feb 1987 | Dec 2022 | Water |
| Record Hill Wind | Record Hill Wind LLC | Roxbury, ME | ISO New England (ISNE) | 138.8 GWh | Dec 2011 | Dec 2022 | Wind |
| Red Shield Envir Old Town Facility | ND Paper, Inc. | Old Town, ME | ISO New England (ISNE) | 75.8 GWh | Jun 1965 | Dec 2022 | Wood/Wood Waste Solids : 71.8% Natural Gas : 16.1% Black Liquor : 11.9% |
| ReEnergy Livermore Falls | ReEnergy Livermore Falls | Livermore Falls, ME | ISO New England (ISNE) | 295.0 GWh | Jul 1992 | Dec 2022 | Wood/Wood Waste Solids |
| ReEnergy Stratton LLC | ReEnergy Stratton LLC | Stratton, ME | ISO New England (ISNE) | 288.2 GWh | Oct 1989 | Dec 2022 | Wood/Wood Waste Solids |
| Regional Waste Systems | Ecomaine | Portland, ME | ISO New England (ISNE) | 88.6 GWh | May 1988 | Feb 2024 | Non-biogenic Municipal Solid Waste : 54.4% Biogenic Municipal Solid Waste : 44.5% Natural Gas : 1.0% |
| River Road | Norridgewock River Road Solar, LLC | Norridgewock, ME | ISO New England (ISNE) | 7.1 GWh | Feb 2022 | Dec 2022 | Solar |
| Robbins Lumber | Robbins Lumber Inc | Searsmont, ME | ISO New England (ISNE) | 126.6 MWh | Dec 1980 | Dec 2022 | Distillate Fuel Oil |
| Rollins Wind Project | Evergreen Wind, LLC | Winn Village, ME | ISO New England (ISNE) | 170.4 GWh | Jun 2011 | Dec 2022 | Wind |
| RoxWind | RoxWind LLC | Roxbury, ME | ISO New England (ISNE) | 45.6 GWh | Oct 2021 | Dec 2022 | Wind |
| Rumford Cogeneration | ND Paper, Inc. | Rumford, ME | ISO New England (ISNE) | 455.3 GWh | Dec 1989 | Feb 2024 | Black Liquor : 45.2% Tire-derived Fuels : 23.0% Wood/Wood Waste Solids : 19.4% Bituminous Coal : 9.4% Residual Fuel Oil : 2.7% |
| Rumford Falls Hydro Facility | Brookfield Power New England | Rumford, ME | ISO New England (ISNE) | 267.0 GWh | Dec 1917 | Dec 2022 | Water |
| Rumford Power LLC | Rumford Power | Rumford, ME | ISO New England (ISNE) | 434.8 GWh | Jun 2000 | Nov 2022 | Natural Gas |
| S D Warren Westbrook | Dichotomy Power, LLC | Westbrook, ME | ISO New England (ISNE) | 17.8 GWh | Dec 1902 | Dec 2022 | Water |
| Saddleback Ridge Wind Farm | Saddleback Ridge Wind, LLC | Carthage, ME | ISO New England (ISNE) | 96.1 GWh | Nov 2014 | Dec 2022 | Wind |
| Salmon Falls | Green Mountain Power Corp | South Berwick, ME | ISO New England (ISNE) | 1.1 GWh | Jun 1986 | Dec 2022 | Water |
| Sanford Solar | Sanford Airport Solar, LLC | Sanford, ME | ISO New England (ISNE) | 92.8 GWh | Oct 2020 | Feb 2024 | Solar |
| SCS Harpswell 012903 Brunswick, LLC | Sol Systems | Brunswick, ME | ISO New England (ISNE) | 1.6 GWh | Oct 2022 | Dec 2022 | Solar |
| Shawmut | Brookfield White Pine Hydro LLC | Shawmut, ME | ISO New England (ISNE) | 43.9 GWh | Dec 1912 | Dec 2022 | Water |
| Silver Maple | WEB Silver Maple Wind LLC | Clifton, ME | ISO New England (ISNE) | 14.5 GWh | Sep 2022 | Dec 2022 | Wind |
Browse Power Plants By Maine Counties
Figures are based on February 2024 generation numbers.| County | State Rank | Active Plants | Feb 2024 Generation |
|---|---|---|---|
| Androscoggin County, ME | # 6 | 23 | 806.4 GWh |
| Aroostook County, ME | # 8 | 18 | 605.2 GWh |
| Cumberland County, ME | # 1 | 16 | 3.0 TWh |
| Franklin County, ME | # 5 | 13 | 1.4 TWh |
| Hancock County, ME | # 10 | 11 | 509.5 GWh |
| Kennebec County, ME | # 12 | 19 | 144.3 GWh |
| Knox County, ME | # 15 | 4 | 14.2 GWh |
| Oxford County, ME | # 4 | 14 | 1.5 TWh |
| County | State Rank | Active Plants | Feb 2024 Generation |
|---|---|---|---|
| Penobscot County, ME | # 2 | 34 | 2.1 TWh |
| Piscataquis County, ME | # 9 | 4 | 525.5 GWh |
| Sagadahoc County, ME | # 13 | 3 | 66.3 GWh |
| Somerset County, ME | # 3 | 27 | 1.7 TWh |
| Waldo County, ME | # 14 | 5 | 56.5 GWh |
| Washington County, ME | # 7 | 7 | 650.1 GWh |
| York County, ME | # 11 | 15 | 282.6 GWh |