Last updated: 12 Jun 2025
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14 May 2025
News from Transpower - May 2025
Last updated: 04 Jun 2025
Invitation to Comment: Draft Security of Supply Assessment 2025 (Closed)
Last updated: 07 May 2025
HVDC link upgrade programme - media resources
Last updated: 07 May 2025
HVDC cable replacement and enhancement August 2024 consultation
In August 2024 Transpower published an Information and Consultation paper about upgrading and enhancing the capacity of the submarine cables.
Last updated: 09 May 2025
Quarterly Security of Supply Outlook
Last updated: 04 Jun 2025
TPM development archive
Information relating to the development of, and transition to, the TPM
Last updated: 04 Jun 2025
Grid Pricing
The way Transpower recovers its revenue from its customers is set out in the Electricity Authority's Transmission Pricing Methodology (TPM)