How many battery storage projects are planned in MISO?

Developers have proposed 235 battery storage projects in MISO with 40 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 MISO?

Stein - Rapson 345 kV line in Huron County, Michigan is the largest planned, at 500 MW. It is expected to come online in 2025.

Who is developing battery storage projects in MISO?

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 MISO

Developers have proposed 235 battery storage projects in MISO with 40 GW of capacity, in the grid operators' interconnection queues.

Planned235

See operating battery storage projects in MISO

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 MISO 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 MISO

Planned, by capacity

#	Battery storage project	Location	Expected online	Capacity
1	Stein - Rapson 345 kV line	Huron County, Michigan	2025	500 MW
2	Cedar Mountain - Lyon County 345.0kV	Redwood County, Minnesota	2030	500 MW
3	Other_	Jefferson County, Arkansas	2030	500 MW
4	SHERBURNE CO	Meeker County, Minnesota	2028	500 MW
5	Columbia - Rockdale 345.0kV	Columbia County, Wisconsin	2028	400 MW
6	PERE MARQUETTE	Mason County, Michigan	2030	400 MW
7	WEST MEMPHIS EHV - KEO EHV 500.0kV	St. Francis County, Arkansas	2028	400 MW
8	18MOROCCO 256583	Monroe County, Michigan	2028	360 MW
9	RIVER ROUGE	Wayne County, Michigan	2029	350 MW
10	NROC 3 (601039) to PR ISLD3 (601003) 345 kV line	Goodhue County, Minnesota	2028	330 MW

Planned battery storage projects expected online soonest in MISO

In the next 18 months, soonest first

#	Battery storage project	Location	Expected online	Capacity
1	NELSON ROAD - VERGENNES 345.0kV	Montcalm County, Michigan	2026	225 MW
2	Hamilton	Hamilton County, Illinois	2027	200 MW
3	Towerline	Tazewell County, Illinois	2027	200 MW
4	CHISAGO COUNTY	Chisago County, Minnesota	2027	100 MW
5	Cole - Penton Road 230.0kV	Beauregard Parish, Louisiana	2027	200 MW
6	Bloomington Brokaw	Peoria County, Illinois	2027	300 MW
7	Cato 138/69kV (facilities above 100kV)	Pike County, Indiana	2027	130 MW
8	7ASTER - 7CMDR 345.0kV	Perry County, Illinois	2027	200 MW
9	Army Post 161kV Substation	Polk County, Iowa	2027	170 MW
10	Faraday	Macon County, Illinois	2027	100 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 MISO

How many battery storage projects are planned in MISO?: Developers have proposed 235 battery storage projects in MISO with 40 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 MISO?: Stein - Rapson 345 kV line in Huron County, Michigan is the largest planned, at 500 MW. It is expected to come online in 2025.
Who is developing battery storage projects in MISO?: 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.