How many planned battery storage projects are in the US?

There are 2543 planned battery storage projects in the US.

What is the total planned battery storage capacity in the US?

The total planned battery storage capacity in the US is 469,767 MW.

What is the largest planned battery storage project in the US?

The largest planned battery storage project in the US is Atlas Complex at 2,171 MW, located in La Paz, Arizona.

How many developers have planned battery storage projects in the US?

There are 240 unique developers with planned battery storage projects in the US.

Planned Battery Storage Projects in the United States

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

Last updated: September 2026

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

As of September 2026, there are 2543 battery storage projects in development in the US, according to Cleanview's project tracker. Their total planned capacity is 469,767 MW. See also: operating battery storage projects in the US→

Planned Projects

2,543

Planned Capacity

469,767 MW

Unique Developers

240

Planned US Battery Storage Map

Map of planned battery storage projects across the United States. Marker size reflects planned capacity.

Largest Planned Battery Storage Projects in the US

Atlas Complex

2,171 MW

Expected Online: March 2028

Location: La Paz, Arizona

Developer: Hanwha Group

Aurora E.C. 138kV

1,206 MW

Expected Online: June 2025

Location: Illinois

Aurora E.C. 138kV

1,206 MW

Expected Online: TBD

Location: Illinois

Sunstone Solar

1,200 MW

Expected Online: December 2027

Location: Morrow, Oregon

Developer: Pine Gate Renewables

Wingtip Solar 1

1,176 MW

Expected Online: September 2032

Location: Merced, California

Quark

1,175 MW

Expected Online: September 2028

Location: Fresno, California

Boson

1,173 MW

Expected Online: September 2028

Location: Kern, California

Muon

1,170 MW

Expected Online: September 2028

Location: Fresno County, California

Pion

1,168 MW

Expected Online: December 2028

Location: Fresno, California

Battery Storage Projects Coming Online Soon in the US

Key Storage 1

300 MW

Expected Online: October 2026

Location: Fresno, California

Developer: NextEra Energy

Mallard Energy Storage

250 MW

Expected Online: October 2026

Location: Collin, Texas

Developer: Peregrine Energy Storage

Tidwell Prairie II Batt

204 MW

Expected Online: October 2026

Location: Robertson, Texas

Developer: Jupiter Power

Barton Branch IA

204 MW

Expected Online: October 2026

Location: Robertson, Texas

Developer: Unable to find

Callisto II Energy Center

203 MW

Expected Online: October 2026

Location: Harris, Texas

Developer: Jupiter Power

Apache Hill BESS

201 MW

Expected Online: October 2026

Location: Hood, Texas

Developer: Vitis Energy

Tidwell Prairie II

200 MW

Expected Online: October 2026

Location: Robertson, Texas

Developer: Jupiter Power

4WLTNVL TP 138 kV

200 MW

Expected Online: October 2026

Location: Jefferson, Illinois

Arroyo Storage

184 MW

Expected Online: October 2026

Location: Cameron, Texas

Developer: Excelsior Energy Capital

Frequently Asked Questions

How many planned battery storage projects are in the US?: There are 2543 planned battery storage projects in the US.
What is the total planned battery storage capacity in the US?: The total planned battery storage capacity in the US is 469,767 MW.
What is the largest planned battery storage project in the US?: The largest planned battery storage project in the US is Atlas Complex at 2,171 MW, located in La Paz, Arizona.
How many developers have planned battery storage projects in the US?: There are 240 unique developers with planned battery storage projects in the US.

Explore Planned Battery Storage Projects by State

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