Publications - Archive

The North Island Grid Upgrade project involves four subprojects, the largest of which is the new transmission line between Auckland and Whakamaru.

Newsletters

North Island Grid Upgrade Newsletter Issue 6: May 2007 [940kB]

Amended Proposal Documents

In October 2006, Transpower submitted this Amended North Island Grid Upgrade Investment Proposal to the Electricity Commission that replaced the Grid Upgrade Plan Volume 2 in part.

North Island Grid Upgrade Project Amended Proposal - October 2006 [651kB]

At a Glance - Transpower's Amended North Island Upgrade Proposal - October 2006 [45kB]

Transpower's Amended North Island Upgrade Proposal - Transpower Overview - October 2006 [913kB]

Proposal Attachments

Attachment A - Diversity into the Upper North Island [90kB]

Attachment B - Treatment of the Arapuni-Pakuranga Line [69kB]

Attachment C - Project Delivery Risk [162kB]

Attachment D - Technical Assessment of Modified Options [1.1MB]

Attachment E - Economic Assessment of the North Island Grid Upgrade Project [394kB]

Attachment F - Costing Report [82kB]

Attachment G - High Temperature Conductor Report [153kB]

Attachment H1 - Timing of Auckland Grid Supply Upgrade [86kB]

Attachment H2 - Pre-Augmentation EUE Assessment [278kB]

Attachment I - Otahuhu-Whakamaru A&B Duplexing Report [333kB]

Attachment J - Assumptions List [67kB]

Attachment K - Economic Analysis of Non-Transmission Alternatives [136kB]

Attachment L - Discount Rate for Grid Investment Test [243kB]

Attachment M - Assessment of the Value of Unserved Energy [139kB]

Attachment N - Foreign Direct Investments [396kB]

Original Proposal Documents

Investment Proposal Synopsis - North Island Upgrade Project - July 2005 [79kB]

Investment Proposal - North Island Upgrade Project - May 2005 [1.7MB]

North Island RFI - September 2004 [856kB]