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) | 16.2 TWh | Nov 1975 | Jun 2024 | Nuclear |
| Milford Power Project | Milford Power Co LLC | Milford, CT | ISO New England (ISNE) | 3.8 TWh | Jan 2004 | Jun 2024 | Natural Gas |
| Madison Solar | Ecos Energy LLC | Somers, CT | ISO New England (ISNE) | 1.7 GWh | Dec 2020 | Dec 2023 | Solar |
| Medtronic - New Haven 2 | Bloom Energy | North Haven, CT | ISO New England (ISNE) | 18.4 GWh | Sep 2020 | Dec 2023 | Natural Gas |
| Medtronic - New Haven | Bloom Energy | North Haven, CT | ISO New England (ISNE) | 15.2 GWh | Sep 2020 | Dec 2023 | Natural Gas |
| McHenry Solar | Ecos Energy LLC | Hampton, CT | ISO New England (ISNE) | 1.7 GWh | Sep 2021 | Dec 2023 | Solar |
| Montville Station | NRG Montville Operations Inc | Uncasville, CT | ISO New England (ISNE) | 97.4 GWh | Dec 1953 | Dec 2022 | Residual Fuel Oil : 78.4% Natural Gas : 20.4% Distillate Fuel Oil : 1.2% |
| Middletown | Middletown Power LLC | Middletown, CT | ISO New England (ISNE) | 187.1 GWh | Sep 1958 | Dec 2022 | Residual Fuel Oil : 69.9% Natural Gas : 29.9% |
| Manchester Community College East | Onyx Asset Services Group | Manchester, CT | ISO New England (ISNE) | 1.7 GWh | Sep 2018 | Dec 2022 | Solar |
| Manchester Community College North | Onyx Asset Services Group | Great Path, CT | ISO New England (ISNE) | 1.7 GWh | Sep 2018 | Dec 2022 | Solar |
Browse Power Plants By Connecticut Counties
Figures are based on May 2024 generation numbers.| County | State Rank | Active Plants | May 2024 Generation |
|---|---|---|---|
| Northwest Hills Planning Region, CT | # 9 | 15 | 98.1 GWh |
| Western Connecticut Planning Region, CT | # 8 | 14 | 337.6 GWh |
| Capitol Planning Region, CT | # 7 | 49 | 767.0 GWh |
| Lower Connecticut River Valley Planning Region, CT | # 6 | 15 | 3.3 TWh |
| South Central Connecticut Planning Region, CT | # 5 | 22 | 4.1 TWh |
| County | State Rank | Active Plants | May 2024 Generation |
|---|---|---|---|
| Naugatuck Valley Planning Region, CT | # 4 | 13 | 6.3 TWh |
| Northeastern Connecticut Planning Region, CT | # 3 | 17 | 6.3 TWh |
| Greater Bridgeport Planning Region, CT | # 2 | 10 | 6.9 TWh |
| Southeastern Connecticut Planning Region, CT | # 1 | 50 | 17.2 TWh |