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.
Information for Industry
Key information for electricity industry participants.
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)
Major outages of the HVDC poles scheduled in Jan to Apr 2020. Communication from the system operator will be published on this page
The system operator will use this webpage to publish updates or information related to the Clutha Upper Waitaki Lines Project Outages.
Transpower as the System Operator has commenced analysis to determine what the impacts of Tiwai’s exit in August 2021 will have on the operation of the power system and security of supply.
We have undertaken studies to determine what the impacts of the decommissioning of Otahuhu and Southdown Power Stations & the last 2 Rankine units at Huntly Power Station will have on the grid.
Four key transmission lines cross the Rangitata River supplying the Upper South Island (USI) and HVDC circuit. Due to the extended period of time that it is expected to take to permanently repair...
This page provides information about the Variable Line Ratings in use on Transpower's transmission assets.