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Battery storage projects in Connecticut

Connecticut has 2 operating battery storage projects with 0.0 GW of capacity.

  • Operating2

See planned battery storage projects in Connecticut

HartfordNew HavenStamford

Under 50 MW50–249 MW250 MW and up

Updated monthly. Last updated November 2026.

The largest battery storage projects in Connecticut

Operating, by capacity

#Battery storage projectYear onlineCapacity
1CMEEC - Polaris Park Solar Hybrid20171 MW
2CMEEC - Norwich Stott St Solar Hybrid20161 MW

Battery storage projects that came online most recently in Connecticut

Newest first

#Battery storage projectYear onlineCapacity
1CMEEC - Polaris Park Solar Hybrid20171 MW
2CMEEC - Norwich Stott St Solar Hybrid20161 MW
The developer behind each project is on paid plans. See plans

How Cleanview tracks battery storage projects

Operating battery storage projects 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 battery storage projects in Connecticut

How many battery storage projects are in Connecticut?
Connecticut has 2 operating utility-scale battery storage projects with 0.0 GW of capacity, according to the EIA's monthly survey of power plants.
What is the largest battery storage project in Connecticut?
CMEEC - Polaris Park Solar Hybrid in New London County, Connecticut is the largest, at 1 MW. It came online in 2017.
How many battery storage projects were built in Connecticut in 2025?
0 battery storage projects came online in Connecticut in 2025, with 0 MW of capacity.
Who is developing battery storage projects 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.

More energy trackers for Connecticut

Battery storage projects in other states

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