Explore the largest battery storage projects in CAISO and see all the utility-scale battery storage projects in CAISO on a map.
Last updated: June 2026
On this page, you can explore our real-time database of battery storage projects in CAISO. Each month, we track battery storage projects and update our list of the largest battery storage projects in CAISO.
As of June 2026, there are 261 utility-scale battery storage projects in CAISO, according to Cleanview's project tracker. Their total operating capacity is 16,009 MW. In 2025, there were 53 battery storage projects built in CAISO. See also: planned battery storage projects in CAISO→
Total Battery Storage Projects
261
Total Capacity
16,009 MW
Built in 2025
53
Map of battery storage projects in CAISO. Marker size reflects capacity — only facilities with reported capacity data are shown.
680 MW
Year Operational: July 2025
Location: Riverside, California
Developer: Calpine
500 MW
Year Operational: December 2025
Location: Kern, California
Developer: AES Clean Energy
450 MW
Year Operational: June 2023
Location: Monterey, California
400 MW
Year Operational: August 2025
Location: San Joaquin, California
Developer: NextEra Energy
350 MW
Year Operational: October 2022
Location: Riverside, California
325 MW
Year Operational: July 2023
Location: Riverside, California
300 MW
Year Operational: October 2025
Location: La Paz, Arizona
Developer: TransGrid Energy
279 MW
Year Operational: June 2025
Location: Clark, Nevada
Developer: Silver Peak
250 MW
Year Operational: July 2020
Location: San Diego, California
40 MW
Year Operational: May 2026
Location: Kings, California
Developer: CIM Group
40 MW
Year Operational: May 2026
Location: Tulare, California
Developer: SB Energy
0 MW
Year Operational: May 2026
Location: Mendocino, California
Developer: Laketricity
80 MW
Year Operational: March 2026
Location: Tulare, California
Developer: Ormat Technologies
75 MW
Year Operational: March 2026
Location: Santa Clara, California
Developer: esVolta
50 MW
Year Operational: March 2026
Location: San Diego, California
Developer: RWE
1 MW
Year Operational: March 2026
Location: San Joaquin, California
1 MW
Year Operational: March 2026
Location: Merced, California
Developer: ZG
2 MW
Year Operational: February 2026
Location: San Joaquin, California
Developer: Prologis Logistics Services
Cleanview