Directory of Power Plants in Maine

List of All Maine Power Plants

Displaying Results 1 to 5 of 5
Plant NameUtilityLocationBalancing AuthorityAnnual GenerationPlant DateLast UpdateFuel Types
GardinerKEI (Maine) Power Management (III) LLCGardiner, MEISO New England (ISNE)4.3 GWhJun 1985Dec 2024 Water
Gorham Solar 1 (CSG)CleanCapital HoldingsGorham, MEISO New England (ISNE)7.8 GWhOct 2023Dec 2024 Solar
Gulf IslandBrookfield White Pine Hydro LLCLewiston, MEISO New England (ISNE)136.3 GWhDec 1925Dec 2024 Water
Great Lakes Hydro America - MEGreat Lakes Hydro America LLCMillinocket, MEISO New England (ISNE)570.9 GWhJun 1917Dec 2024 Water
Georges River EnergyRobbins Lumber IncSearsmont, MEISO New England (ISNE)40.3 GWhNov 2018Dec 2023 Wood/Wood Waste Solids

Browse Power Plants By Maine Counties

Figures are based on April 2025 generation numbers.
CountyState RankActive PlantsApr 2025 Generation
Penobscot County, ME# 1443.8 TWh
Cumberland County, ME# 2213.3 TWh
Oxford County, ME# 3201.7 TWh
Somerset County, ME# 4361.5 TWh
Franklin County, ME# 516760.4 GWh
Androscoggin County, ME# 628758.1 GWh
Aroostook County, ME# 732607.5 GWh
Washington County, ME# 89587.8 GWh
CountyState RankActive PlantsApr 2025 Generation
Piscataquis County, ME# 96515.4 GWh
Hancock County, ME# 1014463.0 GWh
York County, ME# 1122259.0 GWh
Waldo County, ME# 129213.0 GWh
Kennebec County, ME# 1327189.9 GWh
Sagadahoc County, ME# 14563.5 GWh
Knox County, ME# 15521.4 GWh
Lincoln County, ME# 16418.4 GWh