How many planned battery storage projects are in CAISO?

There are 424 planned battery storage projects in CAISO.

What is the total planned battery storage capacity in CAISO?

The total planned battery storage capacity in CAISO is 126,861 MW.

What is the largest planned battery storage project in CAISO?

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

How many developers have planned battery storage projects in CAISO?

There are 44 unique developers with planned battery storage projects in CAISO.

Planned Battery Storage Projects in CAISO

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

Last updated: June 2026

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

As of June 2026, there are 424 battery storage projects in development in CAISO, according to Cleanview's project tracker. Their total planned capacity is 126,861 MW. See also: operating battery storage projects in CAISO→

Planned Projects

424

Planned Capacity

126,861 MW

Unique Developers

Largest Planned Battery Storage Projects in CAISO

Atlas Complex

2,171 MW

Expected Online: October 2027

Location: La Paz, Arizona

Developer: Hanwha Group

Jove Solar

2,090 MW

Expected Online: January 2030

Location: La Paz, Arizona

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

Angeleno Solar Farm

1,150 MW

Expected Online: December 2028

Location: Los Angeles, California

Darden

1,150 MW

Expected Online: July 2027

Location: Fresno, California

Developer: Intersect Power

Battery Storage Projects Coming Online Soon in CAISO

CPC West

150 MW

Expected Online: July 2026

Location: Kern, California

CPC West

150 MW

Expected Online: July 2026

Location: Kern, California

Aramis Power Plant

101 MW

Expected Online: July 2026

Location: Alameda, California

Developer: Intersect Power

Solar Star 3

25 MW

Expected Online: July 2026

Location: Kern, California

Developer: Berkshire Hathaway Energy

Solar Star 4

25 MW

Expected Online: July 2026

Location: Kern, California

Developer: Berkshire Hathaway Energy

Bellefield 2 Solar Farm

500 MW

Expected Online: August 2026

Location: Kern, California

Jasmine

70 MW

Expected Online: August 2026

Location: Kern, California

Developer: Idemitsu Renewables

Harquahala Sunrise 2

161 MW

Expected Online: September 2026

Location: Maricopa, Arizona

Developer: Copia Power

Key Storage 1

300 MW

Expected Online: October 2026

Location: Fresno, California

Developer: NextEra Energy

Frequently Asked Questions

How many planned battery storage projects are in CAISO?: There are 424 planned battery storage projects in CAISO.
What is the total planned battery storage capacity in CAISO?: The total planned battery storage capacity in CAISO is 126,861 MW.
What is the largest planned battery storage project in CAISO?: The largest planned battery storage project in CAISO is Atlas Complex at 2,171 MW, located in La Paz, Arizona.
How many developers have planned battery storage projects in CAISO?: There are 44 unique developers with planned battery storage projects in CAISO.

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