About 947 Imperial Irrigation District Customers in the Thousand Palms area lost power Tuesday, but the lights were back on in about 90 minutes.
The issue was reported about 8:30 a.m., although the exact boundaries of the outage were unknown.
IID crews responded to the area, and the power was restored in about 90 minutes, according to the utility. The cause of the outage was unknown.
Anybody still without electricity was urged to check their main breakers or call 800-303-7756.
The IID provides electricity to more than 150,000 customers in parts of Riverside and San Diego counties, and all of Imperial County.