We need to continually operate, maintain and develop New Zealand's transmission network – the National Grid – to ensure we meet the ongoing electricity needs of New Zealanders.
Between 2005 and 2008 we investigated, and reported on, the adequacy of our transmission network supplying the upper South Island (north of the Waitaki Valley).
Because the electricity needs of the area have changed we reopened the investigation and in 2012 we sought approval from our regulator for the first stage of the project, and this was approved in early 2013. Stage 2 of the project has shown that the preferred option is a two-switching-station solution between the Orari and Rangitata Rivers. However the forecast need date is now around 2027, so we're seeking to progress just some parts of the investment needed now (mainly property rights and environmental approvals), so that when we do need to build these facilities, we can mobilise quickly.