
Report Finds PG&E Ignored Damaged Mission Substation Ahead of December Blackout
A 70-page Exponent investigation says PG&E knew there was damage at the Mission substation before the December blackout but did not replace or thoroughly inspect faulty equipment, while moisture and standing water in a 1940s-era facility contributed to a fire and outages that left about 120,000 San Francisco residents without power, fueling calls to reform or break up the utility amid maintenance lapses and disputed restoration timelines.













