Powerco is working to restore power supply to 1532 customers in the Western Bay after strong winds and a car crash today.
About 679 homes in Te Puna are without power after a car struck a power pole. A further 526 homes in Athenree and 327 in Wairoa have also lost power. Site investigations were underway at those sites.
Powerco network operations manager Phil Marsh said strong winds had caused damage to the network, bringing lines down.
People must keep clear of all downed lines by at least 4m and call emergency services on 111 or Powerco on 0800 27 27 27 immediately, he said.
Homeowners should take steps to store or tie down backyard gear, Marsh said.