Crews from Hydro One worked Sunday to correct a power outage in Huron East.
The utility company said over 500 of their customers were without electricity Sunday afternoon.
The lights went out shortly after 3pm in an area roughly bounded by Seaforth on the west, West Perth on the east and Manley on the north.
Hydro One says the outage was blamed on malfunctioning equipment.
Power was restored to all affected customers by 4:15pm.