Rt Hon Prime Minister John Key officially launched the North Island Grid Update Project at the Pakuranga Substation at the end of last year.
The Prime Minister said that the project is vitally important to meet the growing demand for electricity in the Upper North Island. "This is one of the largest upgrades since 1960 and will provide a secure supply of electricity into Auckland and Northland well into the future."
Transpower has been working on the project since February 2010. The new line traverses 186 km and involved the erection of 426 towers. Three new substations were constructed as part of the project including outdoor substations at Whakamaru (north of Taupo), Pakuranga and a switching station located in Brownhill Road (south Auckland). It also included around 10km of underground cable running from Brownhill Substation to Pakuranga Substation.
The completion of this project marks a significant milestone in Transpower's long term investment programme. The line was put into service on 30 October 2012.