Explore the largest battery storage projects expected to come online in Connecticut and see all proposed battery storage projects on a map.
Last updated: May 2026
On this page, you can explore our database of planned battery storage projects in Connecticut. Each month, we track projects in development and update our list of the largest battery storage projects expected to come online in Connecticut.
As of May 2026, there are 6 battery storage projects in development in Connecticut, according to Cleanview's project tracker. Their total planned capacity is 687 MW. See also: operating battery storage projects in Connecticut→
Planned Projects
6
Planned Capacity
687 MW
Unique Developers
5
Map of planned battery storage projects in Connecticut. Marker size reflects planned capacity.
275 MW
Expected Online: December 2027
Location: Middlesex, Connecticut
Developer: Elevate Renewables
205 MW
Expected Online: October 2028
Location: New Haven, Connecticut
Developer: Jupiter Power
142 MW
Expected Online: May 2028
Location: Litchfield, Connecticut
Developer: Flatiron Energy
45 MW
Expected Online: April 2031
Location: Windham, Connecticut
Developer: Key Capture Energy
20 MW
Expected Online: October 2027
Location: Windham, Connecticut
Developer: Unable to find
Cleanview