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Power restored to most in San Francisco after massive outage

Power company officials say a fire in a substation caused led to much of the outage.

Cars wait at an intersection with no working traffic lights from power outages, in San Francisco, Saturday, Dec. 20, 2025.
Cars wait at an intersection with no working traffic lights from power outages, in San Francisco, Saturday, Dec. 20, 2025. Read moreJeff Chiu / AP
    by Jaimie Ding and Susan Haigh, Associated Press
    Published 

Power was restored Sunday morning to the bulk of the 130,000 homes and businesses in San Francisco impacted by a massive outage a day earlier that caused major disruptions in the city.

The Pacific Gas and Electric Co.’s outage map showed more than 16,000 customers remained without power as of 12 p.m. PST. PG&E said earlier its crews were working Sunday to restore electricity in several neighborhoods and small areas of downtown San Francisco following Saturday’s outage.

PG&E said it could not provide a precise timeframe for when the power would be fully restored.

“The damage from the fire in our substation was significant and extensive, and the repairs and safe restoration will be complex,” the utility said, referring to the substation at 8th and Mission streets. That fire has been blamed for some of the blackouts. The outage remains under investigation.

PG&E said it has mobilized additional engineers and electricians to help with restoration efforts.

“This is a very complex work plan and will require the highest amount of safety focus to ensure safe work actions,” PG&E said. No injuries have been reported.

The outage, which occurred shortly after 1 p.m. on Saturday, left a large swath of the northern part of the city without power that began to grow in size. At its peak, the outage represented roughly one-third of the utility company’s customers in the city.

At about 4 p.m. on Saturday, PG&E posted on X that it had stabilized the grid and no further outages were expected.

Social media posts and local media reported mass closures of restaurants and shops and darkened street lights and Christmas decorations on Saturday, one of the busiest shopping days of the year.

The San Francisco Department of Emergency Management said on X there were “significant transit disruptions” happening citywide and urged residents to avoid nonessential travel and treat down traffic signals as four-way stops. Waymo, the operator of driverless ride-hailing vehicles, suspended its services. At least one video posted on social media appeared to show a Waymo vehicle stopped in the middle of an intersection.