Rocky Mountain Power said 2,063 customers were without power for a couple of hours the afternoon of Feb. 5. The outage began at about 2:45 p.m.
Crews investigating the cause observed "obvious distress" to a substation transformer in the area, according to Rocky Mountain Power spokesperson David Eskelsen.
The transformer takes high-voltage electricity and turns it into a lower voltage safe for transmission to customers.
According to Rocky Mountain Power's outage tracker, power was restored at least 2.5 hours earlier than initially estimated.

Summit County officials closed offices at the courthouse on Coalville's Main Street Feb. 5 after the outage. The Summit County Council was meeting at the Sheldon Richins Building in Kimball Junction, so its livestream was unaffected.
Click here for Rocky Mountain Power outage information. Eskelsen said the website updates every 15 minutes.