About 20,000 Pacific Gas & Electric Co. customers in Sonoma County could briefly lose power Wednesday night as crews complete repairs to equipment that caused an outage in Petaluma earlier in the day, the utility said.
PG&E expects to switch those customers back to their normal power source sometime between about 8 and 10 p.m., spokesperson Megan McFarland said. The change could cause a temporary outage lasting less than 20 minutes.
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The work stems from an equipment problem on a PG&E transmission line that knocked out power to about 3,500 customers in the Petaluma area Wednesday morning, McFarland said.
Crews restored electricity to about 2,000 of those customers by moving them to an unaffected line, she said…