Explore the largest battery storage projects in California and see all the utility-scale battery storage projects in California on a map.
Last updated: May 2026
On this page, you can explore our real-time database of battery storage projects in California. Each month, we track battery storage projects and update our list of the largest battery storage projects in California.
As of May 2026, there are 254 utility-scale battery storage projects in California, according to Cleanview's project tracker. Their total operating capacity is 15,070 MW. In 2025, there were 47 battery storage projects built in California. See also: planned battery storage projects in California→
Total Battery Storage Projects
254
Total Capacity
15,070 MW
Built in 2025
47
Map of battery storage projects in California. 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
250 MW
Year Operational: July 2020
Location: San Diego, California
240 MW
Year Operational: February 2025
Location: Tulare, California
Developer: AES Clean Energy
230 MW
Year Operational: July 2021
Location: Riverside, California
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
10 MW
Year Operational: January 2026
Location: San Diego, California
Developer: San Diego Gas & Electric
1 MW
Year Operational: January 2026
Location: Shasta, California
Developer: TotalEnergies
500 MW
Year Operational: December 2025
Location: Kern, California
Developer: AES Clean Energy
Cleanview