PG&E Starts to Cut Power for Nearly 800,000 California Customers on Wildfire Risk

PG&E Corp. PCG +0.92% has begun to shut off power to hundreds of thousands of people in California as it seeks to prevent its electric lines from sparking more deadly wildfires, in what is believed to be the largest such pre-emptive blackout ever.

The outages are poised to hit areas across the northern and central parts of the state, including the famous wine country region, the rural Sierra Nevada foothills and portions of Oakland and San Jose. The utility is implementing the shut-offs as strong, dry winds are expected to hit the region, increasing the risk that its equipment could start fires.

PG&E said early Wednesday the shut-offs will occur in three phases, the first of which began affecting about 513,000 customers from around midnight local time. These outages will be spread across 22 counties, the utility said, including Napa, Mendocino and Sonoma in the wine country region.

Read more at WSJ.