How many planned battery storage projects are in MISO?

There are 283 planned battery storage projects in MISO.

What is the total planned battery storage capacity in MISO?

The total planned battery storage capacity in MISO is 47,499 MW.

What is the largest planned battery storage project in MISO?

The largest planned battery storage project in MISO is Stein - Rapson 345 kV line at 500 MW, located in Huron, Michigan.

How many developers have planned battery storage projects in MISO?

There are 13 unique developers with planned battery storage projects in MISO.

Planned Battery Storage Projects in MISO

Explore the largest battery storage projects expected to come online in MISO and see all proposed battery storage projects on a map.

Last updated: May 2026

On this page, you can explore our database of planned battery storage projects in MISO. Each month, we track projects in development and update our list of the largest battery storage projects expected to come online in MISO.

As of May 2026, there are 283 battery storage projects in development in MISO, according to Cleanview's project tracker. Their total planned capacity is 47,499 MW. See also: operating battery storage projects in MISO→

Planned Projects

283

Planned Capacity

47,499 MW

Unique Developers

Largest Planned Battery Storage Projects in MISO

Stein - Rapson 345 kV line

500 MW

Expected Online: April 2025

Location: Huron, Michigan

Cedar Mountain - Lyon County 345.0kV

500 MW

Expected Online: September 2028

Location: Redwood, Minnesota

ADAMS

500 MW

Expected Online: June 2030

Location: Mower, Minnesota

Other_

500 MW

Expected Online: June 2030

Location: Jefferson, Arkansas

Columbia - Rockdale 345.0kV

400 MW

Expected Online: December 2028

Location: Columbia, Wisconsin

Reynolds 345 kV Substation

400 MW

Expected Online: March 2026

Location: White, Indiana

MAJESTIC - ONEIDA 345.0kV

400 MW

Expected Online: April 2028

Location: Eaton, Michigan

PERE MARQUETTE

400 MW

Expected Online: June 2030

Location: Mason, Michigan

WEST MEMPHIS EHV - KEO EHV 500.0kV

400 MW

Expected Online: March 2028

Location: St. Francis, Arkansas

Battery Storage Projects Coming Online Soon in MISO

North Rochester - Briggs Road 345.0kV

200 MW

Expected Online: June 2026

Location: Wabasha, Minnesota

Redhawk 138 kV - MTEP Project (17976)

200 MW

Expected Online: June 2026

Location: Montgomery, Illinois

Cypress 138 kV Substation

200 MW

Expected Online: June 2026

Location: Hardin, Texas

Calamus East

200 MW

Expected Online: June 2026

Location: Clinton, Iowa

Putnam

110 MW

Expected Online: June 2026

Location: Putnam, Illinois

Edwardsport Station IGCC

100 MW

Expected Online: June 2026

Location: Knox, Indiana

GRE-NININGR7 115 kV

100 MW

Expected Online: June 2026

Location: Dakota, Minnesota

Aster 138kV Station

100 MW

Expected Online: June 2026

Location: Perry, Illinois

Ramsey

100 MW

Expected Online: June 2026

Location: Fayette, Illinois

Frequently Asked Questions

How many planned battery storage projects are in MISO?: There are 283 planned battery storage projects in MISO.
What is the total planned battery storage capacity in MISO?: The total planned battery storage capacity in MISO is 47,499 MW.
What is the largest planned battery storage project in MISO?: The largest planned battery storage project in MISO is Stein - Rapson 345 kV line at 500 MW, located in Huron, Michigan.
How many developers have planned battery storage projects in MISO?: There are 13 unique developers with planned battery storage projects in MISO.

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