Peak hour commuters and thousands of Pacific Gas & Electric customers in southern portion of The City were affected by a large power outage that lasted 45 minutes Wednesday afternoon.
Bus shuttles were deployed to ferry passengers between Castro and West Portal stations after power was lost a little before 4:30 p.m., according to Muni spokeswoman Kristen Holland.
Service was restored at 5:12 p.m., but Holland warned commuters of “residual delays” due to the service disruption.
The power outage affected 4,800 customers in the West Portal, St. Francis Wood and Visitacion Valley neighborhoods, according to PG&E spokesman Joe Molica.
The outage was caused when a large overhead transmission line that feeds a substation in Daly City “tripped out” at 4:26 p.m. An alternative source of power was quickly located by PG&E engineers, he said.