Power is out to 200 properties in the Lower Kaimai.
According to the Powerco website the cause of the outage was a vehicle hitting a power pole about 12.01am.
The estimated restoration time is 2pm.
Meanwhile a car has crashed into a power pole on Milton Rd in Ōtumoetai this morning.
A police spokeswoman said the pole and power lines are down and work is being done to clear it.
One person received minor injuries.