Waymo's robotaxi service in San Francisco came to an abrupt halt Saturday evening, suspending operations after a widespread power blackout reportedly left numerous autonomous vehicles stalled across city streets. The incident underscores the vulnerabilities of advanced autonomous technology when faced with critical infrastructure failures.
Robotaxis Immobilized Amidst Citywide Outage
Social media platforms quickly filled with photos and videos showing Waymo robotaxis immobilized at various intersections and roads. The unexpected stoppages created unusual scenes, with human-driven vehicles navigating around or becoming stuck behind the driverless cars.
Confirming the suspension, Waymo issued a statement Saturday, reiterating it had temporarily halted services due to the blackout. Spokesperson Suzanne Philion provided a similar update to TechCrunch on Sunday morning.
“We have temporarily suspended our ride-hailing services in the San Francisco Bay Area due to the widespread power outage,” Philion stated. “Our teams are working diligently and in close coordination with city officials to monitor infrastructure stability, and we are hopeful to bring our services back online soon. We appreciate your patience and will provide further updates as soon as they are available.”
Waymo has not yet provided a detailed explanation for why the power outage so significantly impacted its autonomous fleet. However, several theories have emerged. A primary suspect is the widespread failure of San Francisco's traffic lights, which were rendered inoperable by the blackout. The disruption was so severe that San Francisco Mayor Daniel Lurie issued a warning, advising residents to avoid non-essential travel due to the combined effect on traffic signals and Muni mass transit.
Other theories suggest Waymo's vehicles might have been impacted by interruptions in cell service or traffic data, both crucial for the navigation and operation of autonomous vehicles.
Blackout Origin and Customer Impact
The root cause of the widespread outage points to a fire at a Pacific Gas & Electric (PG&E) substation within the city. SFGate reported that approximately 120,000 PG&E customers were initially impacted. While power was restored to most by late Saturday, roughly 35,000 customers remained without electricity on Sunday morning, a fact also reflected on PG&E’s outage map.
The incident comes shortly after a leaked letter from Tiger Global Management earlier this month revealed significant growth for Waymo, indicating the Alphabet-owned company is now providing an estimated 450,000 robotaxi rides weekly — nearly double its previously disclosed figures from the spring.
