How many battery storage projects are planned in Massachusetts?

Developers have proposed 36 battery storage projects in Massachusetts with 5.6 GW of capacity, according to the grid operators' interconnection queues. Most queue projects are never built.

What is the largest planned battery storage project in Massachusetts?

Battery Storage in Middlesex County, Massachusetts is the largest planned, at 508 MW. It is expected to come online in 2028.

Who is developing battery storage projects in Massachusetts?

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.

Planned battery storage projects in Massachusetts

Developers have proposed 36 battery storage projects in Massachusetts with 5.6 GW of capacity, in the grid operators' interconnection queues.

Planned36

See operating battery storage projects in Massachusetts

Updated monthly. Last updated November 2026.

Under 50 MW50–249 MW250 MW and up

Updated monthly. Last updated November 2026.

More planned battery storage projects in Massachusetts are expected online in 2027 than in any other year

2026’262027’272028’282029’292030’302031’312032’322033’33

Planned battery storage projects by the year they're expected online. Source: the grid operators' interconnection queues, compiled by Cleanview.

The 10 largest planned battery storage projects in Massachusetts

Planned, by capacity

#	Battery storage project	County	Expected online	Capacity
1	Battery Storage	Middlesex County	2028	508 MW
2	Battery Storage	Barnstable County	2031	500 MW
3	Battery Storage	Barnstable County	2028	500 MW
4	Battery Storage	Middlesex County	2028	500 MW
5	Battery Storage	Bristol County	2027	350 MW
6	Lite Brite Battery Storage	Suffolk County	2028	300 MW
7	Battery Storage	Norfolk County	2027	300 MW
8	Battery Storage	Berkshire County	2028	290 MW
9	Hecate Energy Eastern Ave Energy Center	Suffolk County	2027	250 MW
10	Battery Storage	Hampden County	2029	250 MW

Planned battery storage projects expected online soonest in Massachusetts

In the next 18 months, soonest first

#	Battery storage project	County	Expected online	Capacity
1	Belchertown Solar PV + Battery Project	Hampshire County	2026	3 MW
2	Town of Sharon Portfolio -Mt St Landfill	Norfolk County	2027	6 MW
3	Braley Hill North Solar	Plymouth County	2027	5 MW
4	Randall Lane Solar	Plymouth County	2027	5 MW
5	Snipatuit Road Solar	Plymouth County	2027	4 MW
6	Featherbed Lane South Solar	Plymouth County	2027	1 MW
7	Battery Storage	Worcester County	2027	204 MW
8	Taft BESS	Worcester County	2027	200 MW
9	Cushman Road Solar	Plymouth County	2027	3 MW
10	MA Acushnet 540R Main St	Bristol County	2027	2 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 Massachusetts

How many battery storage projects are planned in Massachusetts?: Developers have proposed 36 battery storage projects in Massachusetts with 5.6 GW of capacity, according to the grid operators' interconnection queues. Most queue projects are never built.
What is the largest planned battery storage project in Massachusetts?: Battery Storage in Middlesex County, Massachusetts is the largest planned, at 508 MW. It is expected to come online in 2028.
Who is developing battery storage projects in Massachusetts?: 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.