An unplanned power outage was reported in San Francisco, affecting PG&E customers.
Public information about the reported outage included guidance for PG&E customers.
Customers can call 1-800-743-5002 for real-time outage information, and PG&E's outage center provides maps and estimated restoration times. Residents can sign up directly with PG&E for outage alerts going forward.
Earlier reporting described the August 30 Bernal Heights blackout as San Francisco's seventh major unplanned PG&E outage of 2026. Previous outages this year have darkened Bernal Heights, Haight Ashbury and the Western Addition, Russian Hill, North Beach and Chinatown, and multiple stretches of the Sunset District.
A Pattern Rooted in the December Substation Fire
The current run of blackouts traces back to a major fire at PG&E's Mission Substation on December 20, 2025, which left 120,000 San Francisco residents without power and triggered widespread public backlash. An independent 70-page investigation by engineering firm Exponent, released in May, found that humidity and condensation inside the substation triggered that fire, and that PG&E personnel had discovered damaged insulating boards at the facility the prior November but never replaced them, as reported by the SF Standard.
It was not the substation's first brush with disaster. State regulatory filings show the facility suffered previous major electrical fires in 1996 and in 2003, as Hoodline noted in its coverage of an August pole fire that blacked out 5,000 Sunset District homes.
Small Businesses Still Counting Losses From December
The economic fallout from the December substation fire has proven costly for local merchants. Small business owners reported lost revenue and spoiled inventory after the multi-day outage, and many reported that PG&E's initial claims payouts fell far short of their actual losses, according to KQED. Some affected merchants and residents planned or filed a class-action lawsuit against PG&E.
Those financial grievances have fueled calls to break away from PG&E entirely. State Senator Scott Wiener introduced Senate Bill 875 in February to reform state eminent domain procedures, aiming to make it easier for San Francisco and other municipalities to acquire PG&E's local distribution grid, per Courthouse News. San Francisco officials have criticized PG&E's high electricity bills and called for changes to the company.
The city has pursued municipal control of its power distribution since 2019, with multiple offers to acquire PG&E's local grid. In July, the city's Planning Commission unanimously approved a required Environmental Impact Report to advance a potential acquisition, KQED reports.
A CPUC document mentions a decline in PG&E's SAIDI performance since 2015. PG&E's 2023 general rate case filing covers the 2023 to 2026 period. The filing also lists 133 units in 30 electric substations at an estimated average cost of $211,000 per unit.
What Affected Residents Should Know Right Now
Drivers navigating Hayes Valley, SoMa, and the Mission should be aware that any intersection with a traffic signal knocked out by the outage legally becomes an all-way stop under California Vehicle Code Section 21800(d)(1), which requires a complete stop and cautious proceeding, per Caltrans. Blacked-out intersections in these dense, high-traffic neighborhoods pose an immediate safety hazard until power and signals are restored.
For food safety, residents should take precautions during an outage, a point Hoodline highlighted during an earlier Nob Hill blackout in April. Residents can also consult SF.gov for emergency information.
Customers can check PG&E for information about assistance after prolonged outages. It remains unclear what equipment issue caused Tuesday's specific failure, how long it will last, or exactly how many customer accounts have been affected.
