Residents at Flat Bush in South Auckland were left without power for several hours after a large tree fell onto power lines on the corner of Mill Rd and Redoubt Rd.
Power has been restored for the majority of customers in the area and their crews and vegetation management contractors are working to restore the rest of customers as quickly and safely as possible, a Vector spokeswoman said.
"We realise being without power on a winter's evening is an inconvenience to customers, and we are working hard to get everyone's power back on as soon as we can."
The spokesperson said the outage happened about 3pm.
It was estimated repairs would be comlete and power fully restored by about 9pm.