About 600 properties in Taranaki are still without power following Cyclone Gita.
Powerco's operations manager Phil Marsh said contractors were visiting individual properties to restore power as the faults were now localised.
The scale of damage in eastern Taranaki, including Stratford, Toko, Douglas and Whangamomona, was massive and parts of the network would need to be rebuilt, he said.
It could still be several days before power was be restored in all areas, Mr Marsh said.
People should stay clear of any downed power lines, he said.
Water boiling still needed
Some Taranaki residents are being warned they will have to boil their water for another week.
The region's water main was severely damaged in the storms last Tuesday and some residents had been without water for the past few days.
But the New Plymouth District Council said water was now back in the taps in the areas that were affected - Waitara, Highland Park and Lepperton.
Water would need to be flushed through the pipes for several days, before it would be clean without having to be boiled, the council said.
Residents are being asked to turn on their outside taps first and run the water for 10 minutes if it is murky.