The system operator will use this webpage to publish updates or information related to the Clutha Upper Waitaki Lines Project Outages.
Information for Industry
Key information for electricity industry participants.
Transpower as the System Operator has commenced analysis to determine what the impacts of Tiwai’s exit in December 2024 will have on the operation of the power system and security of supply.
Frequency Keeping Control and Roundpower enables the implementation of national reserves and frequency keeping markets which reduces frequency keeping and reserve costs to the electricity market.
This page shows the HVDC overload limits used by the market system to model the under frequency instantaneous reserves (IR) required for a HVDC Contingent Event (the loss of a HVDC pole)
This page provides information about the Variable Line Ratings in use on Transpower's transmission assets.