Sector
Electricity
Segment
Transmission
Region
Tasmania
Victoria
Interconnector
Status
Open
Commencement date
Regulatory period
-
AER reference
AER23007164

On 29 November 2024, we received the Stage 1, Part B (Construction costs) regulatory proposal from Marinus Link Pty Ltd. We published an Issues Paper on 21 March 2025 and held an online public forum on 3 April 2025.

The Marinus Link Commencement and Process Paper sets a two-step approach to support consumer engagement and the timely delivery of Project Marinus. This includes an Initial Draft Decision limited to two market tested work programs released on 16 May 2025 and a Supplementary Draft Decision, released on 28 November. 

A Final Decision on the Stage 1 Part B, (Construction costs) is expected in February 2026.

Have your say

The AER will host an online pre-determination conference on Thursday, 4 December. Interested stakeholders can register via the Eventbrite website here

We invite energy consumers and other interested parties to make submissions on our Supplementary Draft Decision by Friday, 19 December 2025.

Background

The proposed Marinus Link interconnector will comprise two 750 MW high voltage direct current (HVDC) cables running 255km undersea and 90km underground HVDC cables between Burnie, Tasmania and Latrobe Valley, Victoria. 

Key Documents

AER Initial Draft Decision - Marinus Link Stage 1, Part B (Construction costs) Transmission Determination 2025-30

Authors
AER
Content type
Document

MLPL-B-002 MLPL Revised Revenue Proposal Stage 1 - Part B (Construction) - July 2025

Authors
Marinus Link
Content type
Document

Attachment 1 - Marinus Link Update to Revised Revenue Proposal - October 2025

Authors
Marinus Link
Content type
Document

AER Supplementary Draft Decision - Marinus Link Stage 1, Part B (Construction costs) - November 2025

Authors
AER
Content type
Document