Transpower

Transpower New Zealand Limited (TPNZ), known simply as Transpower, is the state-owned enterprise responsible for maintenance and transmission of the electric power grid in New Zealand. It performs two major functions in the New Zealand electricity market: as the owner of the National Grid, it provides the infrastructure of electric power transmission that allows consumers to have access to generation from a wide range of sources, and enables competition in the wholesale electricity market; and as system operator, it manages the real-time operation of the grid and the physical operation of the electricity market.