Directory of Power Plants in Connecticut
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Park Solar | Ecos Energy LLC | Woodbridge, CT | ISO New England (ISNE) | 20.0 MWh | Nov 2023 | Dec 2023 | Solar |
| Jefferson Solar | Ecos Energy LLC | Lebanon, CT | ISO New England (ISNE) | 1.6 GWh | Dec 2017 | Dec 2023 | Solar |
| Hamilton Solar | Ecos Energy LLC | Lebanon, CT | ISO New England (ISNE) | 1.6 GWh | Feb 2018 | Dec 2023 | Solar |
| Franklin Solar | Ecos Energy LLC | Lebanon, CT | ISO New England (ISNE) | 1.6 GWh | Feb 2018 | Dec 2023 | Solar |
| Wilson Solar | Ecos Energy LLC | Lebanon, CT | ISO New England (ISNE) | 1.6 GWh | Feb 2018 | Dec 2023 | Solar |
| DWW Solar ll | DWW Solar ll LLC | Simsbury, CT | ISO New England (ISNE) | 47.3 GWh | Nov 2019 | Jun 2024 | Solar |
| Cellu Tissue | Dunn Paper East Hartford, LLC | East Hartford, CT | ISO New England (ISNE) | 13.3 GWh | Apr 2009 | Jun 2024 | Natural Gas |
| Millstone | Dominion Energy Nuclear Conn Inc | Waterford, CT | ISO New England (ISNE) | 16.2 TWh | Nov 1975 | Jun 2024 | Nuclear |
| Becton Canaan | DG Northeast 1, LLC | North Canaan, CT | ISO New England (ISNE) | 3.4 GWh | Feb 2018 | Dec 2023 | Solar |
| Torrington Solar One, LLC | DG Connecticut III, LLC | Torrington, CT | ISO New England (ISNE) | 3.5 GWh | Feb 2021 | Dec 2023 | Solar |
| Bristol Solar One, LLC | DG Connecticut III, LLC | Bristol, CT | ISO New England (ISNE) | 3.1 GWh | Apr 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 |
| East Windsor Solar One | DG Connecticut III, LLC | East Windsor, CT | ISO New England (ISNE) | 9.1 GWh | Nov 2021 | Dec 2023 | Solar |
| Southington Solar One | DG Connecticut III, LLC | Southington, CT | ISO New England (ISNE) | 9.0 GWh | Jan 2022 | Dec 2023 | Solar |
| Burlington Solar 1 | DG Connecticut III, LLC | Burlington, CT | ISO New England (ISNE) | 5.2 GWh | Jan 2022 | Dec 2023 | Solar |
| Devon Station | Devon Power LLC | Milford, CT | ISO New England (ISNE) | 573.3 MWh | Dec 1984 | Dec 2022 | Kerosene : 88.9% Natural Gas : 11.1% |
| Derby Fuel Cell | Derby Fuel Cell LLC | Derby, CT | ISO New England (ISNE) | 8.2 GWh | - | Dec 2023 | Natural Gas |
| Danbury Hospital Cogen Plant | Danbury Hospital | Danbury, CT | ISO New England (ISNE) | 28.0 GWh | Oct 2011 | Dec 2023 | Natural Gas |
| CPV Towantic Energy Center | CPV Towantic, LLC | Oxford, CT | ISO New England (ISNE) | 5.9 TWh | Apr 2018 | Jun 2024 | Natural Gas |
| Covanta Southeastern Connecticut Company | Covanta Southeastern Connecticut Company | Preston, CT | ISO New England (ISNE) | 125.5 GWh | Nov 1991 | Jun 2024 | Non-biogenic Municipal Solid Waste : 53.9% Biogenic Municipal Solid Waste : 44.1% Distillate Fuel Oil : 2.0% |
| Covanta Bristol Energy | Covanta Bristol Inc | Bristol, CT | ISO New England (ISNE) | 114.7 GWh | Nov 1987 | Jun 2024 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| Bridge Street 1 & 2 | Connecticut Mun Elec Engy Coop | Groton, CT | ISO New England (ISNE) | 656.2 MWh | Jun 2010 | Dec 2023 | Distillate Fuel Oil |
| Fort Hill 1, 2, 3 & 4 | Connecticut Mun Elec Engy Coop | Uncasville, CT | ISO New England (ISNE) | 949.0 MWh | Jul 2010 | Jun 2024 | 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 |
| Backus Microgrid Project | Connecticut Mun Elec Engy Coop | Norwich, CT | ISO New England (ISNE) | 1.1 GWh | Jul 2014 | Jun 2024 | Distillate Fuel Oil |
| Lebanon Pines 1 & 2 | Connecticut Mun Elec Engy Coop | Lebanon, CT | ISO New England (ISNE) | 672.2 MWh | Mar 2010 | Dec 2023 | Distillate Fuel Oil |
| LNG 1 & 2 | Connecticut Mun Elec Engy Coop | Norwich, CT | ISO New England (ISNE) | 669.5 MWh | Mar 2010 | Dec 2023 | Distillate Fuel Oil |
| Jewett City 1 | Connecticut Mun Elec Engy Coop | Jewett City, CT | ISO New England (ISNE) | 242.5 MWh | Jan 2010 | Dec 2023 | Distillate Fuel Oil |
| Gary Court 1 & 2 | Connecticut Mun Elec Engy Coop | Groton, CT | ISO New England (ISNE) | 561.6 MWh | Jun 2010 | Dec 2023 | Distillate Fuel Oil |
| Subase Microgrid Project | Connecticut Mun Elec Engy Coop | Groton, CT | ISO New England (ISNE) | 53.3 GWh | Nov 2022 | Dec 2023 | Natural Gas |
| Franklin Drive | Connecticut Jet Power LLC | Torrington, CT | ISO New England (ISNE) | 331.4 MWh | Oct 1968 | Dec 2022 | Kerosene |
| Branford | Connecticut Jet Power LLC | Branford, CT | ISO New England (ISNE) | 168.4 MWh | Oct 1967 | Dec 2022 | Kerosene |
| Torrington Terminal | Connecticut Jet Power LLC | Torrington, CT | ISO New England (ISNE) | 191.2 MWh | Oct 1967 | Dec 2022 | Kerosene |
| Cos Cob | Connecticut Jet Power LLC | Greenwich, CT | ISO New England (ISNE) | 1.5 GWh | Aug 1969 | Dec 2022 | Kerosene |
| Norwich WWTP | City of Norwich - (CT) | Norwich, CT | ISO New England (ISNE) | 1.0 MWh | Apr 2006 | Mar 2024 | Distillate Fuel Oil |
| Tenth Street | City of Norwich - (CT) | Norwich, CT | ISO New England (ISNE) | 3.9 GWh | Apr 1967 | Dec 2023 | Water |
| North Main Street | City of Norwich - (CT) | Norwich, CT | ISO New England (ISNE) | 139.9 MWh | Jul 1972 | May 2023 | Distillate Fuel Oil |
| CCSU Co-Gen-STBY Gen | Central Connecticut State University | New Britain, CT | ISO New England (ISNE) | 89.2 MWh | Sep 1993 | Dec 2023 | Natural Gas |
| HSCo CHP | Cartier Energy, LLC | Hartford, CT | ISO New England (ISNE) | 28.8 GWh | Sep 2009 | Dec 2022 | Natural Gas |
| Hartford Hospital Cogeneration | Cartier Energy, LLC | Hartford, CT | ISO New England (ISNE) | 53.0 GWh | Jun 1988 | Dec 2022 | Natural Gas |
| Bridgeport Fuel Cell, LLC | Bridgeport Fuel Cell, LLC | Bridgeport, CT | ISO New England (ISNE) | 112.9 GWh | Nov 2013 | Dec 2023 | Natural Gas |
| Bridgeport Energy Project | Bridgeport Energy LLC | Bridgeport, CT | ISO New England (ISNE) | 2.5 TWh | May 1998 | Jun 2024 | Natural Gas |
| Digital Fairfield | Bloom Energy | Trumbull, CT | ISO New England (ISNE) | 13.9 GWh | May 2018 | Dec 2023 | Natural Gas |
| 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 |
| IBM Southbury | Bloom Energy | Southbury, CT | ISO New England (ISNE) | 5.7 GWh | Oct 2014 | Dec 2022 | Natural Gas |
| Connecticut College | Bloom Energy | New London, CT | ISO New England (ISNE) | 9.4 GWh | Aug 2019 | Dec 2022 | Natural Gas |
| Yale New Haven - New London | Bloom Energy | New London, CT | ISO New England (ISNE) | 4.1 GWh | Aug 2022 | Dec 2022 | Natural Gas |
| Bradley Energy Center | Ameresco Select Inc | Windsor Locks, CT | ISO New England (ISNE) | 15.0 GWh | Oct 2002 | Dec 2022 | Natural Gas |
| Algonquin Windsor Locks | Algonquin Windsor Locks LLC | Windsor Locks, CT | ISO New England (ISNE) | 136.3 GWh | Dec 1989 | Jun 2024 | Natural Gas : 99.9% |
| Trinity College Fuel Cell | AEP Onsite Partners, LLC | Hartford, CT | ISO New England (ISNE) | 10.1 GWh | Jul 2018 | Dec 2022 | Natural Gas |
| North Stonington Solar Center, LLC | Adapture Renewables, Inc. | North Stonington, CT | ISO New England (ISNE) | 5.2 GWh | Sep 2022 | Dec 2022 | Solar |
| FDX010.0 FedEx Fuel Cell | 2016 ESA Project Company, LLC | Middletown, CT | ISO New England (ISNE) | 7.6 GWh | Aug 2018 | Dec 2023 | Natural Gas |
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 |