California better prepared to prevent blackouts, but grid remains vulnerable By ADAM BEAM article Power transmission tower is silhouetted by the rising sun in Burlingame, California on October 26, 2019. Potentially historic windstorm coming to the San Francisco Bay Area may prompt Pacific Gas and Electric Company, PG&E to shutoff power to Expand SACRAMENTO, Calif. - California's top energy regulators on Tuesday said the state is better prepared to avoid last summer's rotating blackouts, but they cautioned the power grid of the nation's most populous state is still vulnerable to extreme heat waves that could force more outages later this year.