Explore the largest solar farms in CAISO and see all the utility-scale solar projects in CAISO on a map.
Last updated: September 2026
On this page, you can explore our real-time database of solar farms in CAISO. Each month, we track solar projects and update our list of the largest solar farms in CAISO.
As of September 2026, there are 858 utility-scale solar farms in CAISO, according to Cleanview's project tracker. Their total operating capacity is 25,815 MW. In 2025, there were 55 solar farms built in CAISO. See also: planned solar farms in CAISO→
Total Solar Farms
858
Total Capacity
25,815 MW
Built in 2025
55
Map of solar farms in CAISO. Marker size reflects capacity — only facilities with reported capacity data are shown.
586 MW
Year Operational: November 2014
Location: San Luis Obispo, California
500 MW
Year Operational: December 2025
Location: Kern, California
Developer: AES Clean Energy
348 MW
Year Operational: February 2014
Location: Yuma, Arizona
318 MW
Year Operational: June 2015
Location: Kern, California
314 MW
Year Operational: October 2014
Location: Riverside, California
300 MW
Year Operational: December 2024
Location: Riverside, California
Developer: EDF Renewables
300 MW
Year Operational: February 2025
Location: Tulare, California
Developer: AES Clean Energy
300 MW
Year Operational: July 2023
Location: San Bernardino, California
300 MW
Year Operational: December 2024
Location: Yuma, Arizona
Developer: AES Clean Energy
200 MW
Year Operational: July 2026
Location: La Paz, Arizona
Developer: 174 Power Global
120 MW
Year Operational: July 2026
Location: San Bernardino, California
Developer: Avantus
105 MW
Year Operational: July 2026
Location: Kern, California
Developer: Calpine
80 MW
Year Operational: July 2026
Location: San Bernardino, California
Developer: Avantus
80 MW
Year Operational: July 2026
Location: San Bernardino, California
Developer: Terra-Gen
51 MW
Year Operational: July 2026
Location: Tulare, California
Developer: Vistra
3 MW
Year Operational: July 2026
Location: Los Angeles, California
Developer: Generate Capital
4 MW
Year Operational: June 2026
Location: Mendocino, California
Developer: Renewable Properties
3 MW
Year Operational: June 2026
Location: Kern, California
Developer: Headwater Energy
Cleanview