Officials say power has been restored to most of Pickering and the western part of Ajax.
Veridian Connections, the local electric utility, said on its website that the outage was due to a “loss of Hydro One supply.”
According to the website, the outage happened at around 1:30 p.m. on Wednesday.
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Hydro One said in a statement the outage occurred at its Cherrywood transformer station. It’s not clear what caused the loss of supply.
Just before 3:20 p.m., Veridian Connections said in an update that power was restored.
A small area near Brock Road and Bayly Street was the only area left to be reconnected and power was restored before 5 p.m.