Directory of Power Plants in Maine
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Otis Hydro | Eagle Creek Renewable Energy, LLC | Livermore Falls, ME | ISO New England (ISNE) | 31.4 GWh | Dec 1984 | Feb 2025 | Water |
| Oakfield Wind Project | Onward Energy | City of Oakfield, ME | ISO New England (ISNE) | 352.4 GWh | Sep 2015 | Feb 2025 | Wind |
| Orono Hydro Station | Brookfield Black Bear Hydro, LLC | Orono, ME | ISO New England (ISNE) | 11.6 GWh | Dec 2008 | Dec 2023 | Water |
| Orono B | Brookfield Black Bear Hydro, LLC | Orono, ME | ISO New England (ISNE) | 25.5 GWh | Oct 2013 | Dec 2023 | Water |
| Oxford PV - BD Solar Oxford LLC | BD Solar Oxford LLC | Oxford, ME | ISO New England (ISNE) | 10.9 GWh | May 2021 | Dec 2023 | Solar |
| Oakland | Nautilus Solar Solutions | Oakland, ME | ISO New England (ISNE) | 8.0 GWh | Aug 2022 | Dec 2023 | Solar |
Browse Power Plants By Maine Counties
Figures are based on February 2025 generation numbers.| County | State Rank | Active Plants | Feb 2025 Generation |
|---|---|---|---|
| Cumberland County, ME | # 1 | 20 | 3.4 TWh |
| Penobscot County, ME | # 2 | 43 | 2.3 TWh |
| Somerset County, ME | # 3 | 35 | 1.9 TWh |
| Oxford County, ME | # 4 | 18 | 1.4 TWh |
| Androscoggin County, ME | # 5 | 28 | 800.3 GWh |
| Franklin County, ME | # 6 | 16 | 786.9 GWh |
| Aroostook County, ME | # 7 | 26 | 572.0 GWh |
| Washington County, ME | # 8 | 8 | 532.6 GWh |
| County | State Rank | Active Plants | Feb 2025 Generation |
|---|---|---|---|
| Piscataquis County, ME | # 9 | 4 | 516.5 GWh |
| Hancock County, ME | # 10 | 13 | 469.3 GWh |
| York County, ME | # 11 | 19 | 325.5 GWh |
| Kennebec County, ME | # 12 | 24 | 214.5 GWh |
| Waldo County, ME | # 13 | 6 | 176.4 GWh |
| Sagadahoc County, ME | # 14 | 4 | 72.1 GWh |
| Knox County, ME | # 15 | 5 | 17.4 GWh |
| Lincoln County, ME | # 16 | 3 | 2.5 GWh |