Maritime Electric restored power Wednesday morning to thousands who were without it for much of the night.
The outages started about 6 p.m. Tuesday in the East Royalty neighbourhood of Charlottetown, and at peak there were 5,500 without electricity.
At 9:21 p.m. there were still more 3,500 Maritime Electric customers without power in central P.E.I., according to the utility's online outage map.
Maritime Electric has not yet released a cause for the outage.
Charlottetown police said they had reports of one transformer explosion and a vehicle collision at the intersection of the bypass and St. Peters Road, where traffic lights were impacted by the outage.