Grid upgrade plan

A Grid Upgrade Plan (GUP) is a plan, prepared by Transpower and submitted to the Electricity Commission, to upgrade the high-voltage transmission network, or national grid, that transmits electricity throughout the country. 

When Transpower submits a GUP to the Electricity Commission it must contain, among other things:

• A comprehensive plan for asset management and operation of the grid;
• Information on investment contracts (contracts for grid investments that are agreed between Transpower and one of its customers); and
• Investment plans split into economic investments and reliability investments. 

Reliability investments are investments in the grid, or alternative arrangements, by Transpower that are primarily to reduce expected unserved energy.  They must be justified against the grid reliability standards (GRS).

Economic investments are investments that pass the grid investment test (GIT) and are not reliability investments. 

• Grid upgrade 2005
  
• Upper North Island grid investment proposal