A fire at a Pacific Gas & Electric substation in SoMa knocked out power to as many as 130,000 customers starting Saturday, leaving thousands in the dark heading into the holiday season and a week of intense storms. Here’s what we know about the outage and state of restoration.
What happened?
The fire began shortly before 1:10 p.m. Saturday at PG&E’s Mission substation at Eighth and Mission streets, initially affecting 40,000 customers. As firefighters worked to suppress the blaze, crews de-energized additional portions of the electric system for safety, causing outages to peak at approximately 130,000 customers.
The fire damaged critical equipment, including a circuit breaker — a safety switch designed to de-energize the system when problems are detected. Firefighters faced unusual complexities suppressing the fire in the multilevel building, including ventilating carbon monoxide before crews could safely enter.
When did power come back?
Firefighters made the building safe for PG&E crews to enter by 6:15 p.m. Saturday. Restoration efforts began immediately. Nearly 32,000 customers were reconnected by 8:45 p.m. Saturday, and about 100,000 — roughly 75% of those affected — were up by 9:30 p.m.
By noon Sunday, 90% of affected customers had power restored. PG&E initially projected full restoration by 2 p.m. Monday; however, that deadline passed. PG&E said the full restoration time for the remaining 3,800 customers affected by the outage is 6 a.m. on Tuesday, but city officials are skeptical.
While power has been restored to most of the Richmond District after a blackout lasting more than 24 hours, a block of Balboa Street between 26th and 27th avenues remains without electricity and is expected to stay dark until 11 p.m. Monday, potentially leaving dozens of residents without power for several more hours.
Residents said their frustration has been fueled by a lack of communication from PG&E and repeatedly shifting restoration estimates. John McAllen, who has lived on the block for more than 40 years, said the expected restoration time changed from noon to 2 p.m. to 11 p.m. in a single day. “Lying bastards, they’re a bunch of drunks,” the 82-year-old said. “The lies, the disinformation, we’re in the dark.”
A PG&E map Monday afternoon shows lingering outages in the Civic Center and SoMa neighborhoods, as well as scattered pockets in the Outer Sunset and Marina District. | Source: Courtesy PG&E
What is the mayor saying?
Mayor Daniel Lurie said he was “extremely frustrated” by the scale of the outage and the lack of accurate information from PG&E about when power would be restored citywide.
“They gave us a timeline that they believed in, but it’s not one we can have confidence in any longer,” he said at a press conference at City Hall, which is currently being powered by diesel generators. “We don’t have full faith that 6 a.m. is the time tomorrow.”
Lurie said the impact on residents over the past two days was unacceptable. “What our residents have gone through over the last 48 hours is unacceptable. He added that “What we’re seeing this weekend is unacceptable,” noting that a blackout of this size and duration “hasn’t happened for decades.”
“We’re going to demand answers and they better be able to provide them,” Lurie said, adding that he was “absolutely concerned” that the cost of the outage would be passed on to customers in the form of higher rates.
What sparked the fire?
PG&E says it doesn’t know. COO Sumeet Singh said Monday that the extensive equipment damage makes it difficult to determine a root cause. The utility has hired Exponent, a Bay Area-based engineering firm, to conduct an independent investigation.
“We will determine what occurred to ensure it never happens again,” Singh said at a press conference outside the damaged substation.
Was the equipment properly maintained?
PG&E completed preventative maintenance at the Mission substation in October and conducted its most recent bimonthly inspection Dec. 5. Singh said neither inspection identified any problems.
PG&E COO Sumeet Singh offers an apology Monday outside the damaged substation at Eighth and Mission streets. | Source: George Kelly/The Standard
Why were the estimated restoration times wrong?
Many customers were irate as they were repeatedly given estimated restoration times that came and went. Singh acknowledged the failure and said PG&E’s estimation systems typically perform well, with more than 91% accuracy systemwide.
“It obviously did not work effectively in the circumstance over this weekend,” Singh said. “We are committed to understanding exactly what happened, why it happened, and owning the fixes.”
Were other substations damaged?
Residents have observed a large presence of workers at a substation at 24th Avenue and Balboa Street since Sunday, but the utility has not shared details on what is being done there.
Six hulking diesel generators, which one worker said cost $600,000 to operate daily, were parked outside the substation Monday afternoon. The generators are needed to feed power to the grid while both substations are not fully operational. Crews said they are expected to run for at least two to three days.
Two workers said the substation is undamaged and still online, but its output is diminished because it is fed power by the much larger substation at Eighth and Mission.
However, another said one of the substation’s transformers blew out after a power surge following the fire, and the generators are needed to compensate while workers “update the system” of the west-side substation.
The continuing outage in the Richmond may be tied to the damaged equipment. Resident Ian Blackford said he saw a transformer blow around 10:30 p.m. Sunday, followed by a surge of power and sparks from a breaker box on the south side of Balboa Street between 26th and 27th avenues.
How will customers be compensated?
PG&E plans to offer an expedited claims process for affected customers to seek compensation for losses, including spoiled food, lost business revenue, and hotel costs. Singh said details will be available soon on the utility’s website and through customer service.
He declined to specify compensation limits or provide immediate financial relief, saying customers would need to file claims that PG&E would process quickly. The utility opened a community resource center in the Richmond and partnered with 211 to provide hotel accommodations and food vouchers for vulnerable customers.
Could this happen again?
Singh said PG&E has identified no vulnerabilities at other substations and has made significant upgrades systemwide. Two strong storms forecast for Tuesday and Wednesday (opens in new tab) could bring 4 to 10 inches of rain to Northern California; he said more than 5,500 PG&E workers and contractors are positioned to respond.
The outage occurred 22 years to the day (opens in new tab) after a mass blackout at the same substation in 2003, raising questions about aging infrastructure that Singh did not directly address.
