Power outages aren’t exactly rare in Northern California. In the coming months, residents who own a compatible electric vehicle — such as the Ford F-150 Lightning — will effectively be able to use it as a backup generator.

Ford has teamed up with PG&E, the main energy provider in the region, for a bidirectional electric vehicle charging project. The companies claim the F-150 Lightning can power a home for up to 10 days (depending on energy needs) in the event of an outage. Sunrun, another of the automaker’s partners, will start installing Ford’s Intelligent Backup Power system in Northern California this spring. 

GM announced a similar pilot with PG&E earlier this week. If initial testing goes well, they’ll enable vehicle-to-grid charging for a small number of people with Ultium-powered EVs before expanding the trial more broadly later this year.