2026-09-21 17:37:43
Tesla, Sunrun Household Batteries Discharge 580 MW During California Heat Wave on Sept. 9
According to Sunrun and Tesla, more than 140,000 household batteries discharged into California's grid on the evening of Sept. 9, peaking above 580 megawatts during a three-hour window as a heat wave lifted demand. About 110,000 Tesla Powerwall batteries supplied 517 megawatts, with Sunrun owning or