Directory of Power Plants in Rhode Island
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Ocean State Power | Ocean State Power Co | Harrisville, RI | ISO New England (ISNE) | 1.0 TWh | Nov 1990 | Dec 2025 | Natural Gas : 99.7% |
| Ocean State Power II | Ocean State Power II | Harrisville, RI | ISO New England (ISNE) | 576.9 GWh | Sep 1991 | Dec 2025 | Natural Gas : 99.9% |
| Orbit Energy RI | Anaergia | Johnston, RI | ISO New England (ISNE) | 144.0 MWh | Jun 2017 | Dec 2024 | Other Biomass Gas |
Browse Power Plants By Rhode Island Counties
Figures are based on December 2025 generation numbers.| County | State Rank | Active Plants | Dec 2025 Generation |
|---|---|---|---|
| Bristol County, RI | # 5 | 5 | 26.9 GWh |
| Kent County, RI | # 4 | 18 | 225.7 GWh |
| Newport County, RI | # 2 | 11 | 1.6 TWh |
| County | State Rank | Active Plants | Dec 2025 Generation |
|---|---|---|---|
| Providence County, RI | # 1 | 59 | 7.8 TWh |
| Washington County, RI | # 3 | 27 | 438.4 GWh |