Directory of Power Plants in Maine
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Limestone CSG 1 LLC | Limestone CSG 1 LLC | Limestone, ME | ISO New England (ISNE) | 5.0 MWh | Nov 2024 | Dec 2024 | Solar |
| Mechanic Street (CSG) | Nautilus Solar Solutions | Presque Island, ME | ISO New England (ISNE) | 3.0 MWh | Nov 2024 | Dec 2024 | Solar |
| Missile Street (CSG) | Nautilus Solar Solutions | Presque Island, ME | ISO New England (ISNE) | 4.0 MWh | Nov 2024 | Dec 2024 | Solar |
| BRNG Nicolin (CSG) | Nautilus Solar Solutions | Ellsworth, ME | ISO New England (ISNE) | 205.0 MWh | Nov 2024 | Dec 2024 | Solar |
| ISM Solar Shepherd Acres | Navisun LLC | South Paris, ME | ISO New England (ISNE) | 65.0 MWh | Nov 2024 | Dec 2024 | Solar |
| Lebanon CSG LLC | Dimension Energy LLC | Lebanon, ME | ISO New England (ISNE) | 64.0 MWh | Nov 2024 | Dec 2024 | Solar |
| Walden Solar Maine V | Walden Solar Maine V LLC | Leeds, ME | ISO New England (ISNE) | 76.0 MWh | Nov 2024 | Dec 2024 | Solar |
Browse Power Plants By Maine Counties
Figures are based on March 2026 generation numbers.| County | State Rank | Active Plants | Mar 2026 Generation |
|---|---|---|---|
| Cumberland County, ME | # 1 | 22 | 4.1 TWh |
| Penobscot County, ME | # 2 | 47 | 3.8 TWh |
| Somerset County, ME | # 3 | 36 | 1.6 TWh |
| Oxford County, ME | # 4 | 21 | 1.6 TWh |
| Washington County, ME | # 5 | 9 | 896.3 GWh |
| Androscoggin County, ME | # 6 | 29 | 756.3 GWh |
| Franklin County, ME | # 7 | 16 | 718.4 GWh |
| Aroostook County, ME | # 8 | 32 | 598.2 GWh |
| County | State Rank | Active Plants | Mar 2026 Generation |
|---|---|---|---|
| Piscataquis County, ME | # 9 | 4 | 509.1 GWh |
| Hancock County, ME | # 10 | 14 | 474.1 GWh |
| Waldo County, ME | # 11 | 9 | 263.8 GWh |
| York County, ME | # 12 | 22 | 259.7 GWh |
| Kennebec County, ME | # 13 | 27 | 198.0 GWh |
| Sagadahoc County, ME | # 14 | 5 | 63.5 GWh |
| Knox County, ME | # 15 | 5 | 22.0 GWh |
| Lincoln County, ME | # 16 | 4 | 18.4 GWh |