Operators of California's electricity grid acknowledged Wednesday that a miscommunication led to a small number of power shutoffs during a period of great strain, even as the state faced another day of extreme heat that could prompt much larger rolling blackouts.
The miscommunication occurred Tuesday afternoon between a Northern California utility and the California Independent System Operator as the grid was perilously close to running out of energy, said Elliot Mainzer, president and CEO of the CAISO.
