Directory of Power Plants in Maine
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Upper Barker | KEI (Maine) Power Management (III) LLC | Auburn, ME | ISO New England (ISNE) | 6.6 GWh | Apr 1987 | Dec 2023 | Water |
| Unity Solar | Madison Energy Holdings LLC | Unity, ME | ISO New England (ISNE) | 7.3 GWh | Nov 2021 | Dec 2023 | Solar |
Browse Power Plants By Maine Counties
Figures are based on September 2024 generation numbers.| County | State Rank | Active Plants | Sep 2024 Generation |
|---|---|---|---|
| Cumberland County, ME | # 1 | 20 | 3.6 TWh |
| Penobscot County, ME | # 2 | 43 | 2.4 TWh |
| Somerset County, ME | # 3 | 35 | 1.8 TWh |
| Oxford County, ME | # 4 | 18 | 1.4 TWh |
| Franklin County, ME | # 5 | 16 | 829.1 GWh |
| Androscoggin County, ME | # 6 | 28 | 800.6 GWh |
| Aroostook County, ME | # 7 | 26 | 536.2 GWh |
| Washington County, ME | # 8 | 7 | 518.9 GWh |
| County | State Rank | Active Plants | Sep 2024 Generation |
|---|---|---|---|
| Piscataquis County, ME | # 9 | 4 | 459.4 GWh |
| Hancock County, ME | # 10 | 13 | 449.3 GWh |
| York County, ME | # 11 | 19 | 326.4 GWh |
| Kennebec County, ME | # 12 | 24 | 214.5 GWh |
| Waldo County, ME | # 13 | 6 | 127.3 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 |