How many battery storage projects are in MISO?

MISO has 40 operating utility-scale battery storage projects with 1.2 GW of capacity, according to the EIA's monthly survey of power plants.

What is the largest battery storage project in MISO?

Petersburg Energy Center in Pike County, Indiana is the largest, at 250 MW. It came online in 2026.

How many battery storage projects were built in MISO in 2025?

8 battery storage projects came online in MISO in 2025, with 662 MW of capacity.

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.

Battery storage projects in MISO

MISO has 40 operating battery storage projects with 1.2 GW of capacity. 8 came online in 2025.

Operating40

See planned 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.

MISO had 1 battery storage projects online in 2016 and 40 in 2026

2016’162017’172018’182019’192020’202021’212022’222023’232024’242025’252026’26

Battery storage projects online at the end of each year. Source: EIA-860M, compiled by Cleanview.

The 10 largest battery storage projects in MISO

Operating, by capacity

#	Battery storage project	Location	Year online	Capacity
1	Petersburg Energy Center	Pike County, Indiana	2026	250 MW
2	Pike County Energy Storage	Pike County, Indiana	2025	200 MW
3	Paris Solar	Racine County, Wisconsin	2025	110 MW
4	Tibbits Energy Storage	Branch County, Michigan	2025	105 MW
5	Grant County	Grant County, Wisconsin	2025	100 MW
6	Wever Solar (150MW)	Lee County, Iowa	2026	99 MW
7	Wood County	Wood County, Wisconsin	2025	75 MW
8	Dunns Bridge II Solar	Starke County, Indiana	2025	56 MW
9	Cavalry Solar Hybrid	White County, Indiana	2024	45 MW
10	Harding Street	Marion County, Indiana	2016	20 MW

Battery storage projects that came online most recently in MISO

Newest first

#	Battery storage project	Location	Year online	Capacity
1	Blount BESS	Dane County, Wisconsin	2026	7 MW
2	Huiskamp BESS	Dane County, Wisconsin	2026	7 MW
3	West Middleton BESS	Dane County, Wisconsin	2026	7 MW
4	Newton Solar BESS LLC	Jasper County, Illinois	2026	2 MW
5	Wever Solar (150MW)	Lee County, Iowa	2026	99 MW
6	Petersburg Energy Center	Pike County, Indiana	2026	250 MW
7	Wood County	Wood County, Wisconsin	2025	75 MW
8	Grant County	Grant County, Wisconsin	2025	100 MW
9	Warroad Factory	Roseau County, Minnesota	2025	2 MW
10	Paris Solar	Racine County, Wisconsin	2025	110 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 in MISO?: MISO has 40 operating utility-scale battery storage projects with 1.2 GW of capacity, according to the EIA's monthly survey of power plants.
What is the largest battery storage project in MISO?: Petersburg Energy Center in Pike County, Indiana is the largest, at 250 MW. It came online in 2026.
How many battery storage projects were built in MISO in 2025?: 8 battery storage projects came online in MISO in 2025, with 662 MW of capacity.
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.