In August 2024 Transpower published an Information and Consultation paper about upgrading and enhancing the capacity of the submarine cables.
- See the HVDC Cable Replacement and Enhancement Information and Consultation paper (published 6 August 2024, consultation closed 23 August 2024)
 - Read the HVDC Cable Replacement and Enhancement Summary of Submissions (published 4 September 2024)
 
Submissions in full:
- Contact Energy submission August 2024
 - Electricity Networks Aotearoa submission August 2024
 - Major Electricity Users Group submission August 2024
 - Mercury NZ submission August 2024
 - Meridian submission August 2024
 - Neptune submission August 2024
 - Orion submission August 2024
 - Transpower in its role as System Operator submission August 2024 
 - Webinar - Friday 9 August 2024