California blackouts reflect a complicated supply-and-demand problem

Aug 17, 2020
The load can overwhelm the electric grid during heat waves, but this summer's outages have raised new questions.
A sign in Calistoga, California, calls on PG&E to turn the electricity back on during a statewide blackout in October 2019.
Josh Edelson/AFP via Getty Images

Massive power shut-off would cost businesses in California

Oct 8, 2019
As the risk of wildfire and natural disasters increase with climate change, power disruptions could become more common.
Towers carrying electrical lines in south San Francisco.
Justin Sullivan/Getty Images