Directory of Power Plants in Connecticut
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| North Stonington Solar Center, LLC | Adapture Renewables, Inc. | North Stonington, CT | ISO New England (ISNE) | 30.5 GWh | Sep 2022 | Dec 2024 | Solar |
| Norwich WWTP | City of Norwich - (CT) | Norwich, CT | ISO New England (ISNE) | 1.0 MWh | Apr 2006 | Mar 2024 | Distillate Fuel Oil |
| New Haven Harbor | Generation Bridge II Connecticut, LLC | New Haven, CT | ISO New England (ISNE) | 44.9 GWh | Jun 1975 | Feb 2025 | Natural Gas : 53.7% Residual Fuel Oil : 33.6% Kerosene : 10.8% Distillate Fuel Oil : 1.9% |
| Naval Sub Base New London Fuel Cell | Groton Station Fuel Cell, LLC | Groton, CT | ISO New England (ISNE) | 34.2 GWh | Nov 2022 | Dec 2023 | Natural Gas |
| Norcap North | LSE Canes Venatici LLC | East Windsor, CT | ISO New England (ISNE) | 3.5 GWh | Nov 2017 | Dec 2024 | Solar |
| Norcap South | LSE Coma Berenices LLC | East Windsor, CT | ISO New England (ISNE) | 3.6 GWh | Nov 2017 | Dec 2024 | Solar |
| Norfolk Landfill Solar Project | NJR Clean Energy Ventures Corporation | Norfolk, CT | ISO New England (ISNE) | 494.0 MWh | Nov 2024 | Dec 2024 | Solar |
| North Haven Solar One | North Haven Solar One, LLC | North Haven, CT | ISO New England (ISNE) | 2.5 GWh | Feb 2024 | Dec 2024 | Solar |
| Nutmeg Solar | Nutmeg Solar LLC | Enfield, CT | ISO New England (ISNE) | 34.4 GWh | Nov 2020 | Dec 2024 | Solar |
| Niagara Bottling - Bloomfield | Westbound Solar 3, LLC | Bloomfield, CT | ISO New England (ISNE) | 4.5 GWh | Oct 2022 | Dec 2024 | Solar |
| New Milford Gas Recovery | WM Renewable Energy LLC | New Milford, CT | ISO New England (ISNE) | 4.7 GWh | Apr 2008 | Dec 2024 | Landfill Gas |
Browse Power Plants By Connecticut Counties
Figures are based on March 2025 generation numbers.| County | State Rank | Active Plants | Mar 2025 Generation |
|---|---|---|---|
| Southeastern Connecticut Planning Region, CT | # 1 | 50 | 17.9 TWh |
| Greater Bridgeport Planning Region, CT | # 2 | 10 | 7.1 TWh |
| Northeastern Connecticut Planning Region, CT | # 3 | 17 | 6.2 TWh |
| Naugatuck Valley Planning Region, CT | # 4 | 15 | 6.0 TWh |
| South Central Connecticut Planning Region, CT | # 5 | 23 | 4.0 TWh |
| County | State Rank | Active Plants | Mar 2025 Generation |
|---|---|---|---|
| Lower Connecticut River Valley Planning Region, CT | # 6 | 16 | 3.3 TWh |
| Capitol Planning Region, CT | # 7 | 54 | 673.9 GWh |
| Western Connecticut Planning Region, CT | # 8 | 15 | 181.3 GWh |
| Northwest Hills Planning Region, CT | # 9 | 15 | 66.6 GWh |