Hundreds of homes in the lower North Island are still without power on Monday due to high winds and snow.
Powerco says it has made good progress repairing storm damage and restoring supply to customers after the severe winter blast.
High winds and snow caused trees and branches to tear down overhead lines, resulting in power cuts affecting more than 20,000 customers.
About 1000 properties are without supply on Monday night, the majority being in South Taranaki, rural Wanganui, Manawatu and Wairarapa.
Powerco network operations manager Phil Marsh says staff will continue working to restore electricity, but it is inevitable some consumers will be without supply overnight on Monday.
They include Strathmore, Tangahoe Valley, Waitotara Valley, Patea, Ahu Ahu Valley, Waverley, and surrounding areas including Makakaho and Kohil.
Mr Marsh says weather conditions and road closures will be factors in how quickly supply can be restored.
Wellingtonians asked to conserve power
The owner of the country's electricity grid is asking Wellingtonians to conserve power on Monday night.
Transpower has teams in the field and at substations after power cuts north of Wellington and up to Palmerston North.
Chief executive Patrick Strange says wind, snow and ice are causing problems, including surges in the Wellington area.
Dr Strange is asking people to remain patient and conserve power where possible.
In Christchurch, 100 people are still without power on Monday night.
Lions company Orion says rural areas north and west of the city are affected.
Power has been restored in Dunedin following outages earlier in the morning.