The outage includes an area bordered by Ellesmere, Lawrence Avenue East, Warden Avenue and Kennedy Road.
The incident happened around 3 a.m.
There are reports some power wires were also knocked down in the incident. Crews are on scene.
The driver suffered non-life threatening injuries and was taken into custody by police.
As of 6 a.m. it's expected to take a couple of more hours to restore power.