San Francisco faces major blackout due to system failure

A power outage in San Francisco was triggered by a routine operation at two substations, affecting approximately 9,400 PG&E customers. An initial false alert incorrectly estimated 120,000 customers were impacted due to a system glitch, which was corrected within about 30 minutes. The outage affected traffic signals and caused temporary service disruptions, but all service was fully restored by late afternoon.

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