How many battery storage projects are planned in NYISO?

Developers have proposed 121 battery storage projects in NYISO with 18 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 NYISO?

Adirondack Energy Storage Center in Lewis County, New York is the largest planned, at 500 MW. It is expected to come online in 2030.

Who is developing battery storage projects in NYISO?

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 NYISO

Developers have proposed 121 battery storage projects in NYISO with 18 GW of capacity, in the grid operators' interconnection queues.

Planned121

See operating battery storage projects in NYISO

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 NYISO are expected online in 2028 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 NYISO

Planned, by capacity

#	Battery storage project	Location	Expected online	Capacity
1	Adirondack Energy Storage Center	Lewis County, New York	2030	500 MW
2	Shallow Seam BESS	Clearfield County, Pennsylvania	2029	400 MW
3	Terrapin Storage	Kings County, New York	2029	400 MW
4	Brooks Road BESS	Monroe County, New York	2030	400 MW
5	Resilient NY Energy Storage	Richmond County, New York	2028	349 MW
6	Roseton Energy Storage	Orange County, New York	2029	330 MW
7	Blue Spruce Storage	Bronx County, New York	2028	300 MW
8	Willard Storage	Rensselaer County, New York	2030	300 MW
9	Swiss Valley Energy Storage	Wyoming County, New York	2029	300 MW
10	Sugar Loaf Energy Storage I	Orange County, New York	2029	300 MW

Planned battery storage projects expected online soonest in NYISO

In the next 18 months, soonest first

#	Battery storage project	Location	Expected online	Capacity
1	Arthur Kill Energy Storage 1	Richmond County, New York	2026	15 MW
2	Astoria Energy Storage	Queens County, New York	2027	100 MW
3	Luyster Creek Energy Storage 3	Queens County, New York	2027	15 MW
4	East Setauket Energy Storage	Suffolk County, New York	2027	125 MW
5	NYC Energy LLC - Phase 2	Kings County, New York	2027	220 MW
6	KCE NY 2	Montgomery County, New York	2027	200 MW
7	NYC Energy	Kings County, New York	2027	80 MW
8	Bayonne Energy Center III	Kings County, New York	2027	50 MW
9	Holtsville Brookhaven Battery Storage	Suffolk County, New York	2027	80 MW
10	Edwards Calverton Battery Storage	Suffolk County, New York	2027	60 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 NYISO

How many battery storage projects are planned in NYISO?: Developers have proposed 121 battery storage projects in NYISO with 18 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 NYISO?: Adirondack Energy Storage Center in Lewis County, New York is the largest planned, at 500 MW. It is expected to come online in 2030.
Who is developing battery storage projects in NYISO?: 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.