July 14, 2023--Researched by Industrial Info Resources (Sugar Land, Texas)--The California Independent System Operator (CAISO) recently reported more than 5,000 megawatts (MW) of battery-storage capacity is online and integrated into the state's electricity grid, a tenfold increase from the installed capacity in 2020. Industrial Info is tracking $21 billion worth of active battery energy storage system (BESS) projects in California.