Explore the largest battery storage projects in Massachusetts and see all the utility-scale battery storage projects in Massachusetts on a map.
Last updated: May 2026
On this page, you can explore our real-time database of battery storage projects in Massachusetts. Each month, we track battery storage projects and update our list of the largest battery storage projects in Massachusetts.
As of May 2026, there are 130 utility-scale battery storage projects in Massachusetts, according to Cleanview's project tracker. Their total operating capacity is 737 MW. In 2025, there were 8 battery storage projects built in Massachusetts. See also: planned battery storage projects in Massachusetts→
Total Battery Storage Projects
130
Total Capacity
737 MW
Built in 2025
8
Map of battery storage projects in Massachusetts. Marker size reflects capacity — only facilities with reported capacity data are shown.
250 MW
Year Operational: March 2026
Location: Norfolk, Massachusetts
Developer: Eolian Energy
150 MW
Year Operational: May 2025
Location: Plymouth, Massachusetts
Developer: Plus Power
25 MW
Year Operational: December 2022
Location: Barnstable, Massachusetts
6 MW
Year Operational: July 2019
Location: Nantucket, Massachusetts
5 MW
Year Operational: May 2019
Location: Middlesex, Massachusetts
5 MW
Year Operational: August 2021
Location: Middlesex, Massachusetts
5 MW
Year Operational: October 2021
Location: Plymouth, Massachusetts
5 MW
Year Operational: November 2021
Location: Plymouth, Massachusetts
5 MW
Year Operational: December 2022
Location: Hampden, Massachusetts
250 MW
Year Operational: March 2026
Location: Norfolk, Massachusetts
Developer: Eolian Energy
1 MW
Year Operational: September 2025
Location: Bristol, Massachusetts
Developer: Standard Solar
5 MW
Year Operational: August 2025
Location: Middlesex, Massachusetts
Developer: Unable to find
2 MW
Year Operational: June 2025
Location: Plymouth, Massachusetts
Developer: Greenbacker
2 MW
Year Operational: June 2025
Location: Plymouth, Massachusetts
Developer: Greenbacker
150 MW
Year Operational: May 2025
Location: Plymouth, Massachusetts
Developer: Plus Power
5 MW
Year Operational: May 2025
Location: Middlesex, Massachusetts
Developer: Kearsarge Energy
5 MW
Year Operational: May 2025
Location: Middlesex, Massachusetts
Developer: Kearsarge Energy
1 MW
Year Operational: May 2025
Location: Worcester, Massachusetts
Developer: Ameresco
Cleanview