Ed note: Power shortages in California in 2020 and Texas in 2021 have exposed the limits to renewable energy for a reliable grid. The post below complements prior analysis here and here. “The apparent difference between SDG&E [no blackouts] and PG&E [blackouts] can be attributed to the greater proportion of decentralized green power cooperatives in … Continue reading California Grid Frailty: Imported Power/Solar at Issue