Directory of Power Plants in Connecticut
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Becton Dickinson Ground & Roof Top | Madison Energy Investments LLC | North Canaan, CT | ISO New England (ISNE) | 2.5 GWh | Feb 2018 | Dec 2025 | Solar |
| Bilton Solar | Ecos Energy LLC | Somers, CT | ISO New England (ISNE) | 2.5 GWh | Aug 2023 | Dec 2025 | Solar |
| Benz Solar 2 | Ecos Energy LLC | Ansonia, CT | ISO New England (ISNE) | 1.3 GWh | Feb 2025 | Dec 2025 | Solar |
| Benz Solar 1 | Ecos Energy LLC | Ansonia, CT | ISO New England (ISNE) | 1.3 GWh | Feb 2025 | Dec 2025 | Solar |
| Bunce | LSE Indus LLC | North Canaan, CT | ISO New England (ISNE) | 3.2 GWh | Mar 2022 | Dec 2025 | Solar |
| Burlington Solar 1 | DG Connecticut III, LLC | Burlington, CT | ISO New England (ISNE) | 5.8 GWh | Jan 2022 | Dec 2025 | Solar |
| Barrow Solar | Ecos Energy LLC | Somers, CT | ISO New England (ISNE) | 3.1 GWh | May 2021 | Dec 2025 | Solar |
| Bristol Solar One, LLC | DG Connecticut III, LLC | Bristol, CT | ISO New England (ISNE) | 4.9 GWh | Apr 2021 | Dec 2025 | Solar |
| Blair Solar | Ecos Energy LLC | Somers, CT | ISO New England (ISNE) | 1.6 GWh | Dec 2020 | Dec 2025 | Solar |
| Branford | Connecticut Jet Power LLC | Branford, CT | ISO New England (ISNE) | 288.0 MWh | Oct 1967 | Dec 2025 | Kerosene |
| Barrett Farm Solar - Phase I | Onyx Asset Services Group | Thompson, CT | ISO New England (ISNE) | 2.7 GWh | Sep 2017 | Dec 2024 | Solar |
| Backus Microgrid Project | Connecticut Mun Elec Engy Coop | Norwich, CT | ISO New England (ISNE) | 843.0 MWh | Jul 2014 | May 2026 | Distillate Fuel Oil |
| Bridgeport Fuel Cell, LLC | Bridgeport Fuel Cell, LLC | Bridgeport, CT | ISO New England (ISNE) | 90.4 GWh | Nov 2013 | Dec 2025 | Natural Gas |
| Bradley Energy Center | Ameresco Select Inc | Windsor Locks, CT | ISO New England (ISNE) | 11.3 GWh | Oct 2002 | Dec 2025 | Natural Gas |
| Bridge Street 1 & 2 | Connecticut Mun Elec Engy Coop | Groton, CT | ISO New England (ISNE) | 452.0 MWh | Jun 2010 | Dec 2025 | Distillate Fuel Oil |
| Bridgeport Energy Project | Bridgeport Energy LLC | Bridgeport, CT | ISO New England (ISNE) | 2.7 TWh | May 1998 | May 2026 | Natural Gas |
| Bridgeport Station | Generation Bridge II Connecticut, LLC | Bridgeport, CT | ISO New England (ISNE) | 3.2 TWh | Jul 1961 | May 2026 | Natural Gas : 84.6% Distillate Fuel Oil : 15.4% |
| Bulls Bridge | FirstLight Power Resources Services LLC | New Milford, CT | ISO New England (ISNE) | 26.9 GWh | Dec 1902 | Dec 2025 | Water |
Browse Power Plants By Connecticut Counties
Figures are based on May 2026 generation numbers.| County | State Rank | Active Plants | May 2026 Generation |
|---|---|---|---|
| Southeastern Connecticut Planning Region, CT | # 1 | 52 | 18.1 TWh |
| Greater Bridgeport Planning Region, CT | # 2 | 10 | 6.7 TWh |
| Northeastern Connecticut Planning Region, CT | # 3 | 17 | 6.2 TWh |
| Naugatuck Valley Planning Region, CT | # 4 | 17 | 5.9 TWh |
| Lower Connecticut River Valley Planning Region, CT | # 5 | 16 | 3.8 TWh |
| County | State Rank | Active Plants | May 2026 Generation |
|---|---|---|---|
| South Central Connecticut Planning Region, CT | # 6 | 23 | 3.6 TWh |
| Capitol Planning Region, CT | # 7 | 61 | 853.4 GWh |
| Western Connecticut Planning Region, CT | # 8 | 15 | 246.3 GWh |
| Northwest Hills Planning Region, CT | # 9 | 15 | 98.0 GWh |