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San Francisco Blackout From Substation Fire Halts Waymo Robotaxis, Power Largely Restored

The outage exposed weaknesses in autonomous-vehicle operations during signal failures.

Overview

  • About 130,000 PG&E customers lost power on Saturday, affecting roughly one-third of San Francisco.
  • City officials linked the outage to a substation fire, and authorities are investigating the cause.
  • Hundreds of Waymo vehicles stopped and blocked intersections, prompting a city-requested pause that the company lifted after service resumed on Sunday.
  • By Sunday evening most electricity had returned, with updates citing roughly 14,000 customers still without power as restoration continued.
  • Waymo said widespread signal outages and degraded connectivity caused cars to remain stopped longer to verify intersections, and no injuries tied to the stoppages were reported.