Directory of Power Plants in Connecticut
Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
---|---|---|---|---|---|---|---|
Fusion Solar Center LLC | Fusion Solar Centre, L.L.C | Baltic, CT | ISO New England (ISNE) | 40.4 GWh | Feb 2018 | Apr 2025 | Solar |
Canis Minor Solar Farm | LSE Canis Minor LLC | Barkhamsted, CT | ISO New England (ISNE) | 1.7 GWh | Nov 2016 | Dec 2023 | Solar |
Corbin Russwin Phase 3 Berlin | EnterSolar | Berlin, CT | ISO New England (ISNE) | 1.7 GWh | Mar 2018 | Dec 2023 | Solar |
Pepperidge Farm Bloomfield | Pepperidge Farm, Inc.- Bloomfield | Bloomfield, CT | ISO New England (ISNE) | 15.5 GWh | Jul 2008 | Dec 2024 | Natural Gas |
Niagara Bottling - Bloomfield | Westbound Solar 3, LLC | Bloomfield, CT | ISO New England (ISNE) | 4.5 GWh | Oct 2022 | Dec 2024 | Solar |
CMEEC - Bozrah | Tesla Inc. | Bozrah, CT | ISO New England (ISNE) | 3.0 GWh | Nov 2016 | Dec 2024 | Solar |
Branford | Connecticut Jet Power LLC | Branford, CT | ISO New England (ISNE) | 109.0 MWh | Oct 1967 | Dec 2024 | Kerosene |
Town of Branford | Tesla Inc. | Branford, CT | ISO New England (ISNE) | 1.6 GWh | May 2018 | Dec 2024 | Solar |
UI RCP Bridgeport Seaside | United Illuminating Co | Bridgeport, CT | ISO New England (ISNE) | 19.9 GWh | Oct 2015 | Apr 2025 | Natural Gas : 88.2% Solar : 11.8% |
UB Fuel Cell | UB Fuel Cell | Bridgeport, CT | ISO New England (ISNE) | 10.5 GWh | Mar 2015 | Dec 2023 | Natural Gas |
Bridgeport Energy Project | Bridgeport Energy LLC | Bridgeport, CT | ISO New England (ISNE) | 2.8 TWh | May 1998 | Apr 2025 | Natural Gas |
Wheelabrator Bridgeport | Wheelabrator Environmental Systems | Bridgeport, CT | ISO New England (ISNE) | 464.7 GWh | Jun 1988 | Apr 2025 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
Bridgeport Station | Generation Bridge II Connecticut, LLC | Bridgeport, CT | ISO New England (ISNE) | 3.6 TWh | Jul 1961 | Apr 2025 | Natural Gas : 98.6% Distillate Fuel Oil : 1.4% |
Bridgeport Fuel Cell, LLC | Bridgeport Fuel Cell, LLC | Bridgeport, CT | ISO New England (ISNE) | 96.8 GWh | Nov 2013 | Dec 2024 | Natural Gas |
Bristol Solar One, LLC | DG Connecticut III, LLC | Bristol, CT | ISO New England (ISNE) | 4.9 GWh | Apr 2021 | Dec 2024 | Solar |
Covanta Bristol Energy | Covanta Bristol Inc | Bristol, CT | ISO New England (ISNE) | 105.1 GWh | Nov 1987 | Apr 2025 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
Quinebaug Lower Project | Quinebaug Associates LLC | Brooklyn, CT | ISO New England (ISNE) | 10.1 GWh | Mar 1990 | Dec 2023 | Water |
Burlington Solar 1 | DG Connecticut III, LLC | Burlington, CT | ISO New England (ISNE) | 5.6 GWh | Jan 2022 | Dec 2024 | Solar |
Quinebaug Solar | Quinebaug Solar, LLC | Canterbury, CT | ISO New England (ISNE) | 81.2 GWh | Nov 2021 | Apr 2025 | Solar |
Generate Colchester Fuel Cells, LLC | Generate Colchester Fuel Cells, LLC | Colchester, CT | ISO New England (ISNE) | 76.7 GWh | Sep 2021 | Dec 2024 | Natural Gas |
Wind Colebrook South | Wind Colebrook South | Colebrook, CT | ISO New England (ISNE) | 10.7 GWh | Oct 2015 | Mar 2025 | Wind |
Danbury Hospital Cogen Plant | Danbury Hospital | Danbury, CT | ISO New England (ISNE) | 28.1 GWh | Oct 2011 | Dec 2024 | Natural Gas |
Lake Road Generating Plant | Lake Road Generating Co LP | Dayville, CT | ISO New England (ISNE) | 5.8 TWh | Feb 2002 | Apr 2025 | Natural Gas |
Frito Lay Incorporated | Frito Lay Incorporated Dayville | Dayville, CT | ISO New England (ISNE) | 24.0 GWh | Feb 2009 | Apr 2025 | Natural Gas |
Derby Fuel Cell | Derby Fuel Cell LLC | Derby, CT | ISO New England (ISNE) | 105.9 GWh | Dec 2023 | Dec 2024 | Natural Gas |
CP East Hampton I & II Solar | NJR Clean Energy Ventures Corporation | East Hampton, CT | ISO New England (ISNE) | 3.3 GWh | Jan 2021 | Dec 2024 | Solar |
Cellu Tissue | Dunn Paper East Hartford, LLC | East Hartford, CT | ISO New England (ISNE) | 11.9 GWh | Apr 2009 | Apr 2025 | Natural Gas |
Pratt & Whitney | United Technologies | East Hartford, CT | ISO New England (ISNE) | 104.1 GWh | Dec 1991 | Apr 2025 | Natural Gas |
Antares-GRE 314 East Lyme LLC | MN8 Energy LLC | East Lyme, CT | ISO New England (ISNE) | 3.9 GWh | May 2014 | Apr 2025 | Solar |
Norcap North | LSE Canes Venatici LLC | East Windsor, CT | ISO New England (ISNE) | 3.5 GWh | Nov 2017 | Dec 2024 | Solar |
East Windsor Solar One | DG Connecticut III, LLC | East Windsor, CT | ISO New England (ISNE) | 8.5 GWh | Nov 2021 | Dec 2024 | Solar |
Norcap South | LSE Coma Berenices LLC | East Windsor, CT | ISO New England (ISNE) | 3.6 GWh | Nov 2017 | Dec 2024 | Solar |
Gravel Pit Solar, LLC | Gravel Pit Solar, LLC | East Windsor, CT | ISO New England (ISNE) | 19.9 GWh | - | Apr 2025 | Solar |
Raffia Road Solar Project | NJR Clean Energy Ventures Corporation | Enfield, CT | ISO New England (ISNE) | 11.0 MWh | Nov 2024 | Dec 2024 | Solar |
Powder Hill | LSE Delphinus LLC | Enfield, CT | ISO New England (ISNE) | 3.3 GWh | Nov 2020 | Dec 2023 | Solar |
Advance Stores Company, Inc | Tesla Inc. | Enfield, CT | ISO New England (ISNE) | 1.1 GWh | Oct 2014 | Dec 2024 | Solar |
Nutmeg Solar | Nutmeg Solar LLC | Enfield, CT | ISO New England (ISNE) | 34.4 GWh | Nov 2020 | Dec 2024 | Solar |
Fairfield University CHP Plant | Fairfield University | Fairfield, CT | ISO New England (ISNE) | 26.1 GWh | Sep 2007 | Dec 2024 | Natural Gas |
Falls Village | FirstLight Power Resources Services LLC | Falls Village, CT | ISO New England (ISNE) | 30.1 GWh | Dec 1913 | Dec 2024 | Water |
UDR Glastonbury Fuel Cell | UIL Distributed Resources, LLC | Glastonbury, CT | ISO New England (ISNE) | 17.7 GWh | Jan 2016 | Dec 2024 | Natural Gas |
CMEEC - Polaris Park Solar Hybrid | Tesla Inc. | Gordon, CT | ISO New England (ISNE) | 4.9 GWh | Jul 2017 | Dec 2023 | Solar |
Manchester Community College North | Onyx Asset Services Group | Great Path, CT | ISO New England (ISNE) | 1.5 GWh | Sep 2018 | Dec 2023 | Solar |
Cos Cob | Connecticut Jet Power LLC | Greenwich, CT | ISO New England (ISNE) | 676.0 MWh | Aug 1969 | Dec 2024 | Kerosene |
Sherman Solar | Ecos Energy LLC | Griswold, CT | ISO New England (ISNE) | 1.4 GWh | Nov 2019 | Dec 2024 | Solar |
Jackson Solar (CT) | Ecos Energy LLC | Griswold, CT | ISO New England (ISNE) | 1.4 GWh | Nov 2019 | Dec 2024 | Solar |
Clinton Solar | Ecos Energy LLC | Griswold, CT | ISO New England (ISNE) | 1.7 GWh | Apr 2021 | Dec 2024 | Solar |
Pfizer Groton Fuel Cell | Groton Fuel Cell 1 LLC | Groton, CT | ISO New England (ISNE) | 30.1 GWh | Sep 2016 | Dec 2024 | Natural Gas |
Water Treatment 1 & 2 | Connecticut Mun Elec Engy Coop | Groton, CT | ISO New England (ISNE) | 306.0 MWh | Sep 2010 | Apr 2025 | Distillate Fuel Oil |
Subase Microgrid Project | Connecticut Mun Elec Engy Coop | Groton, CT | ISO New England (ISNE) | 43.1 GWh | Nov 2022 | Dec 2024 | Natural Gas |
Gary Court 1 & 2 | Connecticut Mun Elec Engy Coop | Groton, CT | ISO New England (ISNE) | 422.0 MWh | Jun 2010 | Dec 2024 | Distillate Fuel Oil |
Bridge Street 1 & 2 | Connecticut Mun Elec Engy Coop | Groton, CT | ISO New England (ISNE) | 458.0 MWh | Jun 2010 | Dec 2024 | Distillate Fuel Oil |
CMEEC - Navy NE Trident | Tesla Inc. | Groton, CT | ISO New England (ISNE) | 1.3 GWh | May 2017 | Dec 2024 | Solar |
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 |
Pfizer Groton Plant | Pfizer Inc | Groton, CT | ISO New England (ISNE) | 80.4 GWh | Dec 1947 | Apr 2025 | Natural Gas : 94.4% Distillate Fuel Oil : 5.6% |
McHenry Solar | Ecos Energy LLC | Hampton, CT | ISO New England (ISNE) | 1.6 GWh | Sep 2021 | Dec 2024 | Solar |
Sydney Solar | Ecos Energy LLC | Hampton, CT | ISO New England (ISNE) | 2.9 GWh | May 2020 | Dec 2024 | Solar |
Dickinson Solar (CT) | Ecos Energy LLC | Hampton, CT | ISO New England (ISNE) | 2.9 GWh | May 2020 | Dec 2024 | Solar |
Hartford Hospital Cogeneration | Cartier Energy, LLC | Hartford, CT | ISO New England (ISNE) | 43.8 GWh | Jun 1988 | Dec 2023 | Natural Gas : 99.8% |
Enfield Solar One | Enfield Solar One, LLC | Hartford, CT | ISO New England (ISNE) | 5.5 GWh | Mar 2024 | Dec 2024 | Solar |
Hartford Landfill Solar EGF | Materials Innovation Recycling Authority | Hartford, CT | ISO New England (ISNE) | 1.2 GWh | May 2014 | Dec 2024 | Solar |
HSCo CHP | Cartier Energy, LLC | Hartford, CT | ISO New England (ISNE) | 27.3 GWh | Sep 2009 | Dec 2024 | Natural Gas |
Trinity College Fuel Cell | AEP Onsite Partners, LLC | Hartford, CT | ISO New England (ISNE) | 8.9 GWh | Jul 2018 | Dec 2023 | Natural Gas |
Jewett City 1 | Connecticut Mun Elec Engy Coop | Jewett City, CT | ISO New England (ISNE) | 205.0 MWh | Jan 2010 | Dec 2024 | Distillate Fuel Oil |
Adams Solar | Ecos Energy LLC | Lebanon, CT | ISO New England (ISNE) | 1.5 GWh | Feb 2018 | Dec 2024 | Solar |
Hamilton Solar | Ecos Energy LLC | Lebanon, CT | ISO New England (ISNE) | 1.5 GWh | Feb 2018 | Dec 2024 | Solar |
Jefferson Solar | Ecos Energy LLC | Lebanon, CT | ISO New England (ISNE) | 1.5 GWh | Dec 2017 | Dec 2024 | Solar |
Wilson Solar | Ecos Energy LLC | Lebanon, CT | ISO New England (ISNE) | 1.5 GWh | Feb 2018 | Dec 2024 | Solar |
Franklin Solar | Ecos Energy LLC | Lebanon, CT | ISO New England (ISNE) | 1.5 GWh | Feb 2018 | Dec 2024 | Solar |
Lebanon Pines 1 & 2 | Connecticut Mun Elec Engy Coop | Lebanon, CT | ISO New England (ISNE) | 471.0 MWh | Mar 2010 | Dec 2024 | Distillate Fuel Oil |
Wheelabrator Lisbon | Wheelabrator Environmental Systems | Lisbon, CT | ISO New England (ISNE) | 102.1 GWh | Sep 1995 | Apr 2025 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
Manchester Community College East | Onyx Asset Services Group | Manchester, CT | ISO New England (ISNE) | 1.4 GWh | Sep 2018 | Dec 2023 | Solar |
Foxwoods CoGen | Foxwoods Resort Casino | Mashantucket, CT | ISO New England (ISNE) | 10.8 GWh | May 2010 | Dec 2024 | Natural Gas |
Middletown | Middletown Power LLC | Middletown, CT | ISO New England (ISNE) | 169.8 GWh | Sep 1958 | Dec 2023 | Natural Gas : 79.3% Residual Fuel Oil : 20.7% |
FedEx Middletown | VCP Realty, LLC | Middletown, CT | ISO New England (ISNE) | 151.0 MWh | Oct 2024 | Dec 2024 | Solar |
FDX010.0 FedEx Fuel Cell | 2016 ESA Project Company, LLC | Middletown, CT | ISO New England (ISNE) | 7.9 GWh | Aug 2018 | Dec 2024 | Natural Gas |
Kleen Energy Systems Project | Kleen Energy Systems, LLC | Middletown, CT | ISO New England (ISNE) | 3.3 TWh | Jun 2011 | Apr 2025 | Natural Gas : 99.3% Distillate Fuel Oil : 0.7% |
GenConn Middletown LLC | GenConn Middletown LLC | Middletown, CT | ISO New England (ISNE) | 3.5 GWh | May 2011 | Dec 2023 | Kerosene : 83.6% Natural Gas : 16.4% |
CP Middletown Solar II LLC | Green Street Power Partners | Middletown, CT | ISO New England (ISNE) | 1.7 GWh | Nov 2019 | Dec 2024 | Solar |
Wesleyan University Cogen 1 | Wesleyan University | Middletown, CT | ISO New England (ISNE) | 9.9 GWh | Jan 2009 | Dec 2024 | Natural Gas |
CP Middletown Solar I LLC | Green Street Power Partners | Middletown, CT | ISO New England (ISNE) | 1.7 GWh | Nov 2019 | Dec 2024 | Solar |
GenConn Devon LLC | GenConn Devon LLC | Milford, CT | ISO New England (ISNE) | 2.3 GWh | May 2010 | Dec 2023 | Kerosene : 96.0% Natural Gas : 4.0% |
Milford Power Project | Milford Power Co LLC | Milford, CT | ISO New England (ISNE) | 3.7 TWh | Jan 2004 | Apr 2025 | Natural Gas |
Dynamic Energy CT STAG | Milford Pepes Farm Road Solar LLC | Milford, CT | ISO New England (ISNE) | 2.5 GWh | Jul 2023 | Dec 2024 | Solar |
Stevenson | FirstLight Power Resources Services LLC | Monroe, CT | ISO New England (ISNE) | 95.8 GWh | Dec 1918 | Dec 2024 | Water |
Rand Whitney CHP Plant | Rand Whitney Containerboard L.P. | Montville, CT | ISO New England (ISNE) | 133.2 GWh | Mar 2005 | Apr 2025 | Natural Gas |
CCSU Co-Gen-STBY Gen | Central Connecticut State University | New Britain, CT | ISO New England (ISNE) | 90.2 MWh | Sep 1993 | Dec 2024 | Natural Gas |
CCSU Fuel Cell Project | New Britain Renewable Energy, LLC | New Britain, CT | ISO New England (ISNE) | 10.2 GWh | Mar 2012 | Dec 2023 | Natural Gas |
New Haven Harbor | Generation Bridge II Connecticut, LLC | New Haven, CT | ISO New England (ISNE) | 45.2 GWh | Jun 1975 | Apr 2025 | Natural Gas : 53.3% Residual Fuel Oil : 33.4% Kerosene : 11.4% Distillate Fuel Oil : 1.9% |
Amazon BDL3 Solar Project | Solar Star Prime 1 LLC | New Haven, CT | ISO New England (ISNE) | 1.6 GWh | Sep 2019 | Dec 2024 | Solar |
UI RCP New Haven Fuel Cell | United Illuminating Co | New Haven, CT | ISO New England (ISNE) | 13.0 GWh | Jul 2015 | Apr 2025 | Natural Gas |
IKEA New Haven Rooftop PV & Fuel Cell | IKEA Property Inc | New Haven, CT | ISO New England (ISNE) | 2.8 GWh | Jun 2012 | Dec 2024 | Natural Gas : 73.1% Solar : 26.9% |
Connecticut College | Bloom Energy | New London, CT | ISO New England (ISNE) | 9.1 GWh | Aug 2019 | Dec 2024 | Natural Gas |
Yale New Haven - New London | Bloom Energy | New London, CT | ISO New England (ISNE) | 14.6 GWh | Aug 2022 | Dec 2024 | Natural Gas |
Bulls Bridge | FirstLight Power Resources Services LLC | New Milford, CT | ISO New England (ISNE) | 30.8 GWh | Dec 1902 | Dec 2024 | Water |
Kimberly Clark-Unit 1,2,3 | Kimberly-Clark Corporation | New Milford, CT | ISO New England (ISNE) | 219.0 GWh | Mar 2008 | Dec 2024 | Natural Gas |
New Milford Gas Recovery | WM Renewable Energy LLC | New Milford, CT | ISO New England (ISNE) | 4.7 GWh | Apr 2008 | Dec 2024 | Landfill Gas |
Norfolk Landfill Solar Project | NJR Clean Energy Ventures Corporation | Norfolk, CT | ISO New England (ISNE) | 494.0 MWh | Nov 2024 | Dec 2024 | Solar |
Becton Canaan | DG Northeast 1, LLC | North Canaan, CT | ISO New England (ISNE) | 3.3 GWh | Feb 2018 | Dec 2024 | Solar |
Medtronic - New Haven | Bloom Energy | North Haven, CT | ISO New England (ISNE) | 2.2 GWh | Sep 2020 | Dec 2024 | Natural Gas |
North Haven Solar One | North Haven Solar One, LLC | North Haven, CT | ISO New England (ISNE) | 2.5 GWh | Feb 2024 | Dec 2024 | Solar |
Browse Power Plants By Connecticut Counties
Figures are based on April 2025 generation numbers.County | State Rank | Active Plants | Apr 2025 Generation |
---|---|---|---|
Southeastern Connecticut Planning Region, CT | # 1 | 50 | 17.3 TWh |
Greater Bridgeport Planning Region, CT | # 2 | 10 | 7.2 TWh |
Northeastern Connecticut Planning Region, CT | # 3 | 17 | 6.2 TWh |
Naugatuck Valley Planning Region, CT | # 4 | 15 | 5.7 TWh |
South Central Connecticut Planning Region, CT | # 5 | 23 | 3.9 TWh |
County | State Rank | Active Plants | Apr 2025 Generation |
---|---|---|---|
Lower Connecticut River Valley Planning Region, CT | # 6 | 16 | 3.5 TWh |
Capitol Planning Region, CT | # 7 | 54 | 682.7 GWh |
Western Connecticut Planning Region, CT | # 8 | 15 | 178.3 GWh |
Northwest Hills Planning Region, CT | # 9 | 15 | 66.6 GWh |