Up to 1500 homes and businesses in Auckland are still without power as many families prepare to spend a sixth night in the dark.
Tonight, Vector said crews had made ongoing progress overnight and through Sunday to restore main supply lines to the majority of suburbs still without power, and to isolated power and hot water faults scattered around Auckland.
Tuesday's storm brought destructive winds that peaked at 212km/h at Manukau Heads and knocked power out for 180,000 people in just a few hours.
A spokeswoman for the company said on Sunday "the majority of those suburbs where main supply lines have been affected by the storm are expected to be restored before the morning".
"Customers who remain without power or hot water after their street is reconnected should get in touch with Vector via phone or app to let us know, as there may be localised faults on individual properties," the spokeswoman said.