About 2000 homes in Wairarapa were without power for most of yesterday after a blustery Sunday night affected linemen's ability to fix faults.
Yesterday Powerco said there would be about 600 customers still without power by morning.
Powerco had been able to get helicopters in the air to survey the damage and access remote areas of the network.
"We expect to get the majority of customers back on by the end of the day barring further severe weather and will also look to get generators out to customers in some of the remote areas where repairs are likely to take several days," Powerco spokesperson Dean Stevenson said.
Power cuts were experienced in Masterton, Riversdale Beach, Homewood, Pongaroa, Owahanga, Akitio, Haunui, Kaituna, Settlement Rd, Soldiers Rd, Te Wharau and Tiraumea among other remote areas.