How many planned battery storage projects are in CAISO?

There are 442 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 130,271 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: May 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 May 2026, there are 442 battery storage projects in development in CAISO, according to Cleanview's project tracker. Their total planned capacity is 130,271 MW. See also: operating battery storage projects in CAISO→

Planned Projects

442

Planned Capacity

130,271 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

Commerce Energy Storage

250 MW

Expected Online: June 2026

Location: Los Angeles, California

Developer: REV Renewables

Pluot

225 MW

Expected Online: June 2026

Location: Kings, California

White Wing Ranch Solar

200 MW

Expected Online: June 2026

Location: Yuma, Arizona

Developer: Leeward Energy

Leconte Energy Storage

125 MW

Expected Online: June 2026

Location: Imperial, California

Developer: REV Renewables

Aratina Solar Center 1

125 MW

Expected Online: June 2026

Location: San Bernardino, California

Developer: Avantus

North Rosamond Solar

100 MW

Expected Online: June 2026

Location: Kern, California

Willow Springs Solar 4

75 MW

Expected Online: June 2026

Location: Kern, California

Redux Solar

61 MW

Expected Online: June 2026

Location: Fresno, California

Willow Springs Solar 3

50 MW

Expected Online: June 2026

Location: Kern, California

Frequently Asked Questions

How many planned battery storage projects are in CAISO?: There are 442 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 130,271 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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