An extreme heat wave affected California the week of September 4, 2022, driving record-breaking demand for electricity to meet increased air-conditioning use. On September 6, a new record was set in the California Independent System Operator’s (CAISO) territory. CAISO, the grid operator for most of the state, issued appeals for consumer energy conservation throughout the week, as well as Energy Emergency Alerts each day, to help reduce electricity demand and prevent rolling power outages. CAISO predominately used natural gas, electricity imports, and hydroelectric sources during the highest demand hours to meet the ... (full story)