An intense multi-day heatwave kicked into high gear Friday, triggering power outages throughout California as the state’s power grid became overwhelmed by energy demands.
A Stage 3 emergency alert was declared around 6:30 p.m. by the California Independent System Operator, which runs the state’s power grid. The agency has not declared a statewide emergency of this kind since 2001.
More than 300,000 customers in both Northern and Southern California were without power at points Friday evening, according to one power outage tracker. By 10 p.m. power had been restored statewide.
Temperatures for some parts of the state are expected to reach into the triple digits through next week.