Historical pricing information

On 12 April 2022, the Electricity Authority approved a new Transmissions Pricing Methodology (TPM) to take effect from 1 April 2023. For the most up-to-date pricing information and to learn more about the new TPM visit our Grid Pricing pages.

Calculation of charges for the interconnected grid under the new TPM does not use Regional Coincident Peak Demand (RCPD). The last capacity measurement period (CMP) used for the purposes of calculating transmission charges was 1 September 2020 - 31 August 2021.

The information below is historical and will not be updated:

Disclaimer: Transpower provides no warranty, actual or implied, as to the accuracy of the information provided, and accepts no liability or responsibility to any person or organisation for any loss that may result from: reliance on the information, or reliance on RCPD no longer being relevant under the new TPM for the purposes of calculating transmission charges. Reliance on the information on this web page is entirely at a person or organisation’s own risk. 

If you have a specific request for historical pricing information email us at [email protected].