Information about our current development work.
Transmission Pricing Methodology (TPM)
Information related to how the Transmission Pricing Methodology (TPM) is developed.
Subscribe for regular updates as we progress our work on the TPM, and read past updates.
Information related to past TPM reviews and submissions is below. See our Regulatory Submissions page for information on Transpower's responses to other entities' consultations, proposals and papers.
Our response to the Electricity Authority regarding its invitation to provide evidence about removing Regional Coincident Peak Demand from the Transmission Pricing Methodology.
A joint report from Electricity Authority, Commerce Commission and Transpower representatives.
We commissioned Sapere Research Group to research and consider practical design aspects of an LRMC charge for New Zealand’s Transmission Pricing Methodology.
We recently asked for and received feedback on a consultation paper as part of a proposed operational review of the Transmission Pricing Methodology.
This page contains the submissions made in response to our two consultations as part of our TPM operational review.
In 2012 the Electricity Authority consulted on a new approach to transmission pricing.
The Transpower HVDC Sunk Cost Recovery paper outlines the rationale, in 1999, behind the original methodology used to recover sunk HVDC costs from South Island generators.