The project will help increase energy storage capacity in the California grid, which will allow the system operator to manage the grid more efficiently by reducing the use of ramp-up/ramp-down fossil-fuel power generating plants, as well as energy losses resulting from. The project will help increase energy storage capacity in the California grid, which will allow the system operator to manage the grid more efficiently by reducing the use of ramp-up/ramp-down fossil-fuel power generating plants, as well as energy losses resulting from. A Battery Energy Storage System (BESS) is a technology designed to store electric energy for later use. It stores energy from the electrical grid, solar, and wind power. How does BESS support the electricity grid? BESS can increase flexibility of the grid, provide backup electricity during power. ets like achieving 90% clean energy by 2030 in their Climate Action Pl ic—all have renewable energy goals that rely heavily upon battery storage. Today's battery storage systems are ready. SDG&E has been rapidly expanding its battery energy storage and microgrid portfolio. Vulnerabilities can arise at multiple levels, such as design, firmware, software, hardware, communications, and configuration, afecting key BESS components like battery modules, power conversion syst ms (PCS), inverters, and battery.