Bluewater Power reported an outage in Sarnia's north end Monday, impacting about 2,200 customers.
The area stretched from Lakeshore Road to Modeland Road, affecting the Wiltshire, Rapids Parkway, and Twin Lakes neighbourhoods.
The utility said the cause is faulted cables resulting in a pole fire, in the area behind Home Depot.
Power was fully restored at around 1:30 p.m.