Several power outages knocked out service for more than 50,000 Tucson Electric Power customers Wednesday morning. Power was quickly restored.
Service restored at 8:09 a.m. to the last of more than 50,000 customers whose service was interrupted this morning due to equipment problem at a midtown substation. Outage began at 7:53 a.m. and affected mostly midtown area.
— TEP (@TEPenergy) December 20, 2017
The problem was due to an equipment problem at a midtown substation, TEP said via Twitter.