New Cal-ISO rules will prevent sudden, massive renewable outages

Washington — The Federal Energy Regulatory Commission has approved rule changes that will help California Independent System Operator prevent events in which hundreds of megawatts of inverter-based resources like wind and solar needlessly trip offline and cause immediate reliability issues.

Cal-ISO has pointed to inverter-based generation problems as a threat to grid resilience. Meanwhile, the volume of renewable resources that use inverters has dramatically increased recently, and is expected to …