Firefighters battle flames at a burning apartment complex in Paradise, California in November. State fire officials say power lines coming into contact with trees have sparked multiple Northern California wildfires in recent years. PG&E submitted its “wildfire mitigation plan” Wednesday, which lets it cut off power to any of its 5.4 million customers during extremely dry and windy weather.

Firefighters battle flames at a burning apartment complex in Paradise, California in November. State fire officials say power lines coming into contact with trees have sparked multiple Northern California wildfires in recent years. PG