About 12,000 Pennyrile Electric members, mostly in Trigg County, were without power for over an hour Tuesday morning.
Brent Gilkey of Pennyrile says it was due to switchers in a substation in Trigg County.
Power was restored to all members a few minutes after 10 a.m.
Portions of Christian and Caldwell County were without power due to the issue, in addition to all of Trigg County.