Directory of Power Plants in Connecticut
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Millstone | Dominion Energy Nuclear Conn Inc | Waterford, CT | ISO New England (ISNE) | 16.3 TWh | Nov 1975 | Aug 2024 | Nuclear |
| Montville Station | NRG Montville Operations Inc | Uncasville, CT | ISO New England (ISNE) | 36.2 GWh | Dec 1953 | Dec 2023 | Residual Fuel Oil : 65.3% Natural Gas : 33.4% Distillate Fuel Oil : 1.3% |
| Madison Solar | Ecos Energy LLC | Somers, CT | ISO New England (ISNE) | 1.6 GWh | Dec 2020 | Dec 2023 | Solar |
| Medtronic - New Haven 2 | Bloom Energy | North Haven, CT | ISO New England (ISNE) | 17.0 GWh | Sep 2020 | Dec 2023 | Natural Gas |
| Medtronic - New Haven | Bloom Energy | North Haven, CT | ISO New England (ISNE) | 14.0 GWh | Sep 2020 | Dec 2023 | Natural Gas |
| Milford Power Project | Milford Power Co LLC | Milford, CT | ISO New England (ISNE) | 3.6 TWh | Jan 2004 | Aug 2024 | Natural Gas |
| Middletown | Middletown Power LLC | Middletown, CT | ISO New England (ISNE) | 169.8 GWh | Sep 1958 | Dec 2023 | Natural Gas : 79.3% Residual Fuel Oil : 20.7% |
| Manchester Community College East | Onyx Asset Services Group | Manchester, CT | ISO New England (ISNE) | 1.4 GWh | Sep 2018 | Dec 2023 | Solar |
| McHenry Solar | Ecos Energy LLC | Hampton, CT | ISO New England (ISNE) | 1.6 GWh | Sep 2021 | Dec 2023 | Solar |
| Manchester Community College North | Onyx Asset Services Group | Great Path, CT | ISO New England (ISNE) | 1.5 GWh | Sep 2018 | Dec 2023 | Solar |
Browse Power Plants By Connecticut Counties
Figures are based on August 2024 generation numbers.| County | State Rank | Active Plants | Aug 2024 Generation |
|---|---|---|---|
| Northwest Hills Planning Region, CT | # 9 | 15 | 91.9 GWh |
| Western Connecticut Planning Region, CT | # 8 | 14 | 311.0 GWh |
| Capitol Planning Region, CT | # 7 | 50 | 717.6 GWh |
| Lower Connecticut River Valley Planning Region, CT | # 6 | 15 | 3.0 TWh |
| South Central Connecticut Planning Region, CT | # 5 | 23 | 3.8 TWh |
| County | State Rank | Active Plants | Aug 2024 Generation |
|---|---|---|---|
| Naugatuck Valley Planning Region, CT | # 4 | 13 | 5.8 TWh |
| Northeastern Connecticut Planning Region, CT | # 3 | 17 | 6.1 TWh |
| Greater Bridgeport Planning Region, CT | # 2 | 10 | 6.5 TWh |
| Southeastern Connecticut Planning Region, CT | # 1 | 50 | 17.1 TWh |