How many natural gas power plants are in Connecticut?

Connecticut has 53 operating utility-scale natural gas power plants with 5.4 GW of capacity, according to the EIA's monthly survey of power plants.

What is the largest natural gas power plant in Connecticut?

CPV Towantic Energy Center in New Haven County, Connecticut is the largest, at 842 MW. It came online in 2018.

How many natural gas power plants were built in Connecticut in 2025?

0 natural gas power plants came online in Connecticut in 2025, with 0 MW of capacity.

Who is developing natural gas power plants in Connecticut?

Interconnection queues list each project under a project company, not the developer behind it. Cleanview researches the developer of every project and has them on paid plans.

Natural gas power plants in Connecticut

Connecticut has 53 operating natural gas power plants with 5.4 GW of capacity.

Operating53

See planned natural gas power plants in Connecticut

Updated monthly. Last updated November 2026.

Under 250 MW250–999 MW1 GW and up

Updated monthly. Last updated November 2026.

Connecticut had 34 natural gas power plants online in 2016 and 53 in 2026

2016’162017’172018’182019’192020’202021’212022’222023’232024’242025’252026’26

Natural gas power plants online at the end of each year. Source: EIA-860M, compiled by Cleanview.

The 10 largest natural gas power plants in Connecticut

Operating, by capacity

#	Natural gas power plant	County	Year online	Capacity
1	CPV Towantic Energy Center	New Haven County	2018	842 MW
2	Lake Road Generating Plant	Windham County	2002	840 MW
3	Kleen Energy Systems	Middlesex County	2011	693 MW
4	Milford Power Project	New Haven County	2004	578 MW
5	Bridgeport Station	Fairfield County	2019	576 MW
6	Bridgeport Energy Project	Fairfield County	1999	520 MW
7	Middletown	Middlesex County	1964	353 MW
8	Wallingford Energy	New Haven County	2018	350 MW
9	Waterbury Generation	New Haven County	2009	96 MW
10	A L Pierce	New Haven County	2007	84 MW

Natural gas power plants that came online most recently in Connecticut

Newest first

#	Natural gas power plant	County	Year online	Capacity
1	Derby Fuel Cell	New Haven County	2024	14 MW
2	Stamford Health	Fairfield County	2023	2 MW
3	AmericoldCA - Plainville, CT	Hartford County	2023	2 MW
4	Stamford Health Tully Health Center	Fairfield County	2023	1 MW
5	Subase Microgrid Project	New London County	2022	7 MW
6	Naval Sub Base New London Fuel Cell	New London County	2022	7 MW
7	Yale New Haven - New London	New London County	2022	2 MW
8	Generate Colchester Fuel Cells, LLC	New London County	2021	10 MW
9	Sikorsky Aircraft CHP	Fairfield County	2021	10 MW
10	Medtronic - New Haven	New Haven County	2020	2 MW

The developer behind each project is on paid plans. See plans

How Cleanview tracks natural gas power plants

Operating natural gas power plants come from the EIA's monthly survey of power plants. Planned projects come from the grid operators' interconnection queues. We research who is developing each one, since a queue lists a project company, not its owner.

Questions about natural gas power plants in Connecticut

How many natural gas power plants are in Connecticut?: Connecticut has 53 operating utility-scale natural gas power plants with 5.4 GW of capacity, according to the EIA's monthly survey of power plants.
What is the largest natural gas power plant in Connecticut?: CPV Towantic Energy Center in New Haven County, Connecticut is the largest, at 842 MW. It came online in 2018.
How many natural gas power plants were built in Connecticut in 2025?: 0 natural gas power plants came online in Connecticut in 2025, with 0 MW of capacity.
Who is developing natural gas power plants in Connecticut?: Interconnection queues list each project under a project company, not the developer behind it. Cleanview researches the developer of every project and has them on paid plans.