List of power stations in Connecticut

Sources of Connecticut utility-scale electricity generation, full-year 2023:[1]

  Natural gas (61.3%)
  Nuclear (34.2%)
  Biomass & RDF (1.1%)
  Solar (1%)
  Hydroelectric (0.9%)
  Petroleum (0.4%)
  Other (1.1%)

This is a list of electricity-generating power stations in the U.S. state of Connecticut, sorted by type and name. In 2022, Connecticut had a total summer capacity of 10,108 MW through all of its power plants, and a net generation of 43,054 GWh.[2] In 2023, the electrical energy generation mix was 61.3% natural gas, 34.2% nuclear, 1.1% biomass & refuse-derived fuels, 1% solar, 0.9% hydroelectric, 0.4% petroleum, and 1.1% other. Distributed small-scale solar, including customer-owned photovoltaic panels, delivered an additional net 1,243 GWh to the state's electricity grid in 2023. This compares as nearly three times the amount generated by Connecticut's utility-scale solar facilities.[1]

Nuclear power stations

Data reported by U.S. Energy Information Administration[3]
Plant name Location Coordinates Capacity
(MW)		 Technology Year
completed		 Refs
Millstone Nuclear Power Plant New London County 2,162.9 Nuclear

Retired plants:

Fossil-fuel power stations

Coal

The last coal-fired plant was retired in 2021.[4]

Petroleum

Data reported by U.S. Energy Information Administration
Plant name Location Coordinates Capacity
(MW)		 Technology Year
completed		 Refs
Backus Microgrid Project New London County 10.4 Petroleum liquids
Branford New Haven County 21.8 Petroleum liquids
Bridge Street 1 & 2 New London County 5.2 Petroleum liquids
Bridgeport Station Fairfield County 17 Petroleum liquids[A]
CCSU Co-Gen-STBY Gen Hartford County 1 Petroleum liquids[A]
Cos Cob[B] Fairfield County 115 Petroleum liquids
Devon Station New Haven County 222.6 Petroleum liquids
Fort Hill 1, 2, 3 & 4 New London County 10.4 Petroleum liquids
Franklin Drive Litchfield County 21.8 Petroleum liquids
Gary Court 1 & 2 New London County 6 Petroleum liquids
Jewett City 1 New London County 2.6 Petroleum liquids
Lebanon Pines 1 & 2 New London County 5.2 Petroleum liquids
LNG 1 & 2 New London County 5.2 Petroleum liquids
Middletown Middlesex County 417.2 Petroleum liquids[A]
Montville Station New London County 495.3 Petroleum liquids
New Haven Harbor New Haven County 128.7 Petroleum liquids[A]
Norden 1-3 Fairfield County 6 Petroleum liquids
North Main Street New London County 19 Petroleum liquids
Norwich WWTP New London County 2 Petroleum liquids
South Meadow Hartford County 167.2 Petroleum liquids
Torrington Terminal Litchfield County 21.8 Petroleum liquids
Tunnel New London County 16.5 Petroleum liquids[A]
Water Treatment 1 & 2 New London County 5.2 Petroleum liquids
Waterside Power, LLC Fairfield County 69.6 Petroleum liquids

A Multi-fuel plant, listed is "total net summer capacity" by source.
B Not to be confused with the historic Cos Cob Power Station

Natural gas

Data reported by U.S. Energy Information Administration[3]
Plant name Location Coordinates Capacity
(MW)		 Technology Year
completed		 Refs
A L Pierce New Haven County 84 Natural gas fired combustion turbine
Algonquin Windsor Locks Hartford County 71 Natural gas fired combined cycle
Bradley Energy Center Hartford County 5.8 Natural gas internal combustion engine
Bridgeport Energy Project Fairfield County 520 Natural gas fired combined cycle
Bridgeport Fuel Cell, LLC Fairfield County 16.6 Other natural gas
Bridgeport Station Fairfield County 576.3 Natural gas fired combined cycle[A]
Capitol District Energy Center Hartford County 70.5 Natural gas fired combined cycle
CCSU Co-Gen-STBY Gen Hartford County 2.6 Natural gas internal combustion engine[A]
CCSU Fuel Cell Project Hartford County 1.4 Other natural gas
Cellu Tissue Hartford County 3 Natural gas internal combustion engine
CJTS Energy Center Middlesex County 0.4 Other natural gas
CPV Towantic Energy Center New Haven County 841.5 Natural gas fired combined cycle
Danbury Hospital Cogen Plant Fairfield County 4.3 Natural gas fired combustion turbine
Digital Fairfield Fairfield County 2 Other natural gas
Fairfield University CHP Plant Fairfield County 4.5 Natural gas fired combustion turbine
Foxwoods CoGen New London County 162 Natural gas fired combined cycle
Frito Lay Incorporated Windham County 4.6 Natural gas fired combustion turbine
Hartford Hospital Cogeneration Hartford County 11.8 Other natural gas,
natural gas fired combined cycle
HSCo CHP Hartford County 4 Natural gas fired combustion turbine
IBM Southbury New Haven County 1.1 Other natural gas
IKEA New Haven Rooftop PV & Fuel Cell New Haven County 0.3 Other natural gas[A]
Lake Road Generating Plant Windham County 840 Natural gas fired combined cycle
Kimberly Clark-Unit 1,2,3 Litchfield County 36.3 Natural gas fired combined cycle,
natural gas fired combustion turbine
Kleen Energy Systems, LLC Middlesex County 693 Natural gas fired combined cycle
Middletown Middlesex County 417.2 Natural gas steam turbine[A]
Milford Power Project New Haven County 578 Natural gas fired combined cycle
New Haven Harbor New Haven County 447.9 Natural gas steam turbine[A]
Pepperidge Farm Bloomfield Hartford County 2.6 Other natural gas
Pfizer Groton Fuel Cell New London County 5.6 Other natural gas
Pfizer Groton Plant New London County 37.5 Natural gas fired combustion turbine,
natural gas steam turbine
Pratt & Whitney Hartford County 25.8 Natural gas fired combustion turbine
Rand Whitney CHP Plant New London County 14.6 Natural gas fired combustion turbine
Sikorsky Aircraft CHP Fairfield County 9.3 Natural gas fired combustion turbine[A]
South Windsor Fuel Cell Hartford County 5 Other natural gas
Trinity College Fuel Cell Hartford County 1.4 Other natural gas
TRS Fuel Cell Fairfield County 3.7 Other natural gas
UB Fuel Cell Fairfield County 1.4 Other natural gas
UCONN Cogen Facility Tolland County 25.7 Natural gas fired combined cycle
UI RCP Bridgeport Seaside Fairfield County 2.5 Other natural gas[A]
UI RCP New Haven Fuel Cell New Haven County 2.8 Other natural gas
UI RCP Woodbridge FC New Haven County 2.8 Other natural gas
Waterbury Generation New Haven County 96 Natural gas steam turbine
Wesleyan University Cogen 1 Middlesex County 2.4 Natural gas internal combustion engine

A Multi-fuel plant, listed is "total net summer capacity" by source.

Renewable power stations

Biomass and refuse-derived fuels

Data reported by U.S. Energy Information Administration[3]
Plant name Location Coordinates Capacity
(MW)		 Technology Year
completed		 Notes Refs
Covanta Bristol Energy Hartford County 16.9 Municipal solid waste
Covanta Southeastern Connecticut Company New London County 18.3 Municipal solid waste
CT Resource Rec Authority Facility Hartford County 90 Municipal solid waste Closed July 2022 [5]
Exeter Energy LP Windham County 31.3 Tire-derived fuel (TDF) [6]
New Milford Gas Recovery Litchfield County 2.4 Landfill gas
Plainfield Renewable Energy LLC Windham County 43 Wood/wood waste biomass
Win Waste Innovations Bridgeport Fairfield County 67 Municipal solid waste
Win Waste Innovations Lisbon New London County 14.6 Municipal solid waste

Geothermal

There were no utility-scale Geothermal facilities in the state of Connecticut in 2019.

Hydroelectric

See also: List of dams and reservoirs in Connecticut
Data reported by U.S. Energy Information Administration[3]
Plant name Location Coordinates Capacity (MW) Year completed Refs
Bulls Bridge Litchfield County 7.2
Falls Village Litchfield County 9
Goodwin Hydroelectric Hartford County 3.2
Kinneytown New Old New Haven County 2.3
McCallum Enterprises I LP Fairfield County 8.6
Quinebaug Lower Project Windham County 2.5
Rainbow (CT) Hartford County 8
Scotland Dam Windham County 2
Shepaug New Haven County 37.2
Stevenson Fairfield County 30.5
Taftville New London County 1.6
Tenth Street New London County 1.4
Tunnel New Haven County 1.6[A]

A Multi-fuel plant, listed is "total net summer capacity" by source.

Solar

See also: Solar power in Connecticut
Data reported by U.S. Energy Information Administration[3]
Plant Location Area Capacity (MW) Refs
Adams Solar New London County 1
Advance Stores Company, Inc Hartford County 1
ALDI DC 2 Hartford County 1.2
Amazon BLD3 New Haven County 1
Antares-GRE 314 East Lyme LLC New London County 4
Barrett Farm Solar - Phase I Windham County 1.7
Becton Canaan Litchfield County 2.5
Brass Mill Center New Haven County 3.4
Canis Major Solar Farm Hartford County 2
Canis Minor Solar Farm Litchfield County 1
CMEEC - Bozrah New London County 2.5
CMEEC - Navy NE Trident New London County 1
CMEEC - Norwich Stott St Solar Hybrid New London County 4.3
CMEEC - Polaris Park Solar Hybrid New London County 4.3
Conn Mun Electric Energy Coop New London County 2.5
Corbin Russwin Phase 3 Berlin Hartford County 1
CP Middletown Solar I LLC Middlesex County 1
DWW Solar II Hartford County 36.9
Franklin Solar New London County 1
Fusion Solar Center LLC New London County 20
Hamilton Solar New London County 1
Hartford Landfill Solar EGF Hartford County 1
IKEA New Haven Rooftop PV & Fuel Cell[A] New Haven County 0.8
Jackson Solar (CT) New London County 1
Jefferson Solar New London County 1
Manchester Community College East Hartford County 1
Manchester Community College North Hartford County 1
Plainfield Solar 2 Windham County 1
Sherman Solar New London County 1
Sikorsky Aircraft CHP[A] Fairfield County 0.1
Somers Solar Center, LLC Tolland County 5
Stafford MS Ground Mount Community Solar Tolland County 2
Ticket Network South Windsor Hartford County 1
Town of Branford New Haven County 1.1
Town of Rocky Hill PV CSG Hartford County 3
UI RCP Bridgeport Seaside[A] Fairfield County 2.2
Wilson Solar New London County 1
Woods Hill Solar Windham County 20

A Multi-fuel plant, listed is "total net summer capacity" by source.

Wind

See also: Wind power in Connecticut
Data reported by U.S. Energy Information Administration[3]
Plant Location Area Capacity (MW) Refs
Wind Colebrook South Litchfield County 5

Storage power stations

Battery storage

There were no utility-scale battery storage facilities in the state of Connecticut in 2019.

Pumped storage

Data reported by U.S. Energy Information Administration[3]
Plant Location Area Capacity (MW) Refs
Rocky River Litchfield County 31

See also

References

  1. ^ a b "Electricity Data Browser, Net generation for all sectors, Connecticut, Fuel Type-Check all, Annual, 2001–23". www.eia.gov. Retrieved 2024-03-28.
  2. ^ "Connecticut Electricity Profile". U.S. Energy Information Administration. Retrieved 2022-07-18.
  3. ^ a b c d e f g "Connecticut Profile: State Profile and Energy Estimates". U.S. Energy Information Administration. Retrieved 2020-03-05.
  4. ^ "PSEG exits coal-fired power with Bridgeport Harbor Station retirement". Power Engineering. 2021-06-01. Retrieved 2023-03-23.
  5. ^ "Hartford, Connecticut Garbage Incinerator to Close in 2022". ilsr.org. Retrieved 2022-08-20.
  6. ^ "Exeter Energy Lp in Sterling, Connecticut". CountyOffice.org. Retrieved 2021-02-25.