Hydro One crews are working to bring power back to some pockets of Chatham-Kent.
Rain and thunderstorms rolled through the area Tuesday night into Wednesday morning, causing the outages.
Most of the power outs aren't very large, with the largest one affecting around 150 Hydro One customers in the Dealtown area, but several others are spread across the municipality.
The utility said that crews have been dispatched and most of the estimated restoration times range from 10:30 a.m. to 3 p.m. Wednesday.