Directory of Power Plants in Connecticut
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Waterside Power, LLC | Waterside Power, LLC | Stamford, CT | ISO New England (ISNE) | 1.8 GWh | May 2003 | Dec 2022 | Distillate Fuel Oil |
| Water Treatment 1 & 2 | Connecticut Mun Elec Engy Coop | Groton, CT | ISO New England (ISNE) | 520.0 MWh | Sep 2010 | Jun 2024 | Distillate Fuel Oil |
| Wallingford Energy | Wallingford Energy LLC | Wallingford, CT | ISO New England (ISNE) | 163.5 GWh | Jul 2001 | Dec 2023 | Natural Gas |
| Wesleyan University Cogen 1 | Wesleyan University | Middletown, CT | ISO New England (ISNE) | 11.2 GWh | Jan 2009 | Dec 2023 | Natural Gas |
| Waterbury Generation | Engie North America | Waterbury, CT | ISO New England (ISNE) | 42.5 GWh | May 2009 | Dec 2023 | Natural Gas : 99.7% |
| Wheelabrator Bridgeport | Wheelabrator Environmental Systems | Bridgeport, CT | ISO New England (ISNE) | 485.7 GWh | Jun 1988 | Jun 2024 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| Wheelabrator Lisbon | Wheelabrator Environmental Systems | Lisbon, CT | ISO New England (ISNE) | 107.9 GWh | Sep 1995 | Jun 2024 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| Woods Hill Solar | Woods Hill Solar, LLC | Pomfret, CT | ISO New England (ISNE) | 27.6 GWh | Nov 2018 | Jun 2024 | Solar |
| Wilson Solar | Ecos Energy LLC | Lebanon, CT | ISO New England (ISNE) | 1.6 GWh | Feb 2018 | Dec 2023 | Solar |
| Wallingford Solar | Wallingford Renewable Energy, LLC | Wallingford, CT | ISO New England (ISNE) | 22.5 GWh | Aug 2021 | Dec 2023 | Solar |
| Watertown Solar One, LLC | DG Connecticut III, LLC | Watertown, CT | ISO New England (ISNE) | 3.1 GWh | May 2021 | Dec 2023 | Solar |
| Wind Colebrook South | Wind Colebrook South | Colebrook, CT | ISO New England (ISNE) | 10.0 GWh | Oct 2015 | May 2024 | Wind |
Browse Power Plants By Connecticut Counties
Figures are based on June 2024 generation numbers.| County | State Rank | Active Plants | Jun 2024 Generation |
|---|---|---|---|
| Southeastern Connecticut Planning Region, CT | # 1 | 50 | 17.2 TWh |
| Greater Bridgeport Planning Region, CT | # 2 | 10 | 6.9 TWh |
| Northeastern Connecticut Planning Region, CT | # 3 | 17 | 6.3 TWh |
| Naugatuck Valley Planning Region, CT | # 4 | 13 | 6.3 TWh |
| South Central Connecticut Planning Region, CT | # 5 | 22 | 4.1 TWh |
| County | State Rank | Active Plants | Jun 2024 Generation |
|---|---|---|---|
| Lower Connecticut River Valley Planning Region, CT | # 6 | 15 | 3.3 TWh |
| Capitol Planning Region, CT | # 7 | 49 | 767.0 GWh |
| Western Connecticut Planning Region, CT | # 8 | 14 | 337.6 GWh |
| Northwest Hills Planning Region, CT | # 9 | 15 | 98.1 GWh |