Transpower

Transpower NZ Limited is is the state-owned enterprise responsible for electricity transmission in New Zealand. The operating voltages on their transmission network within the National Grid throughout the country, are normal transmission voltages upto 220kV AC and 330kV DC.

Page link
Official webpage: https://www.transpower.co.nz/

Wikipedia: https://en.wikipedia.org/wiki/Transpower_New_Zealand