Directory of Power Plants in Maine
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Messalonskee 3 | Messalonskee Stream Hydro LLC | Oakland, ME | ISO New England (ISNE) | 7.8 GWh | Dec 1917 | Dec 2023 | Water |
| Medway Hydro | Brookfield Black Bear Hydro, LLC | Medway, ME | ISO New England (ISNE) | 30.6 GWh | Dec 1922 | Dec 2023 | Water |
| Messalonskee 2 (Oakland) | Messalonskee Stream Hydro LLC | Oakland, ME | ISO New England (ISNE) | 13.9 GWh | Dec 1923 | Dec 2023 | Water |
| Messalonskee 5 | Messalonskee Stream Hydro LLC | Waterville, ME | ISO New England (ISNE) | 5.6 GWh | Dec 1934 | Dec 2023 | Water |
| Milford Hydro Station | Brookfield Black Bear Hydro, LLC | Milford, ME | ISO New England (ISNE) | 57.5 GWh | Jun 1941 | Dec 2023 | Water |
| Mechanic Falls | KEI (Maine) Power Management (IV) LLC | Mechanic Falls, ME | ISO New England (ISNE) | 2.6 GWh | Mar 1986 | Dec 2022 | Water |
| MMWAC Resource Recovery Facility | Maine Waste to Energy | Auburn, ME | ISO New England (ISNE) | 12.1 GWh | May 1992 | Jun 2024 | Non-biogenic Municipal Solid Waste : 54.4% Biogenic Municipal Solid Waste : 44.5% Natural Gas : 1.0% |
| Maine Independence Station | Casco Bay Energy Co LLC | Veazie, ME | ISO New England (ISNE) | 946.1 GWh | Apr 2000 | Dec 2023 | Natural Gas |
| Mars Hill Wind Farm Project | Evergreen Wind, LLC | Mars Hill, ME | (NBSO) | 119.1 GWh | Feb 2007 | Dec 2023 | Wind |
| Milo PV - BD Solar 1 LLC | BD Solar 1 LLC | Milo, ME | ISO New England (ISNE) | 26.3 GWh | May 2021 | Dec 2023 | Solar |
| Milo CSG | Milo CSG, LLC | Milo, ME | ISO New England (ISNE) | 6.3 GWh | Jan 2022 | Dec 2023 | Solar |
| Monmouth | Maine DG Solar Monmouth, LLC | Monmouth, ME | ISO New England (ISNE) | 8.5 GWh | Feb 2022 | Dec 2023 | Solar |
| Merrill Road Solar | NextGrid Mangrove, LLC | Lewiston, ME | ISO New England (ISNE) | 5.9 GWh | Feb 2022 | Dec 2023 | Solar |
| ME Novel Lighthouse - Front St. Solar CSG | Luminace Sunbeam Development Holdings, LLC | Skowhegan, ME | ISO New England (ISNE) | 1.4 GWh | Apr 2023 | Dec 2023 | Solar |
| MEVS DOT 109 | MEVS DOT, LLC | Augusta, ME | ISO New England (ISNE) | 1.4 GWh | Jun 2023 | Dec 2023 | Solar |
Browse Power Plants By Maine Counties
Figures are based on June 2024 generation numbers.| County | State Rank | Active Plants | Jun 2024 Generation |
|---|---|---|---|
| Cumberland County, ME | # 1 | 20 | 3.5 TWh |
| Penobscot County, ME | # 2 | 42 | 2.3 TWh |
| Somerset County, ME | # 3 | 34 | 2.0 TWh |
| Franklin County, ME | # 4 | 16 | 1.3 TWh |
| Oxford County, ME | # 5 | 17 | 1.0 TWh |
| Androscoggin County, ME | # 6 | 28 | 871.8 GWh |
| Washington County, ME | # 7 | 7 | 576.7 GWh |
| Aroostook County, ME | # 8 | 21 | 572.0 GWh |
| County | State Rank | Active Plants | Jun 2024 Generation |
|---|---|---|---|
| Piscataquis County, ME | # 9 | 4 | 482.7 GWh |
| Hancock County, ME | # 10 | 13 | 477.1 GWh |
| York County, ME | # 11 | 19 | 353.0 GWh |
| Kennebec County, ME | # 12 | 24 | 224.9 GWh |
| Sagadahoc County, ME | # 13 | 4 | 77.1 GWh |
| Waldo County, ME | # 14 | 6 | 54.8 GWh |
| Knox County, ME | # 15 | 5 | 18.4 GWh |
| Lincoln County, ME | # 16 | 3 | 2.5 GWh |