AER initial draft decision
On 16 May 2025, we released our initial draft decision for Marinus Link's Stage 1 - Part B (Construction costs) proposal.
Invitation for submissions
We invite interested stakeholders to send submissions on our initial draft decision by 15 August 2025. Submissions and requests to make a submission via alternative methods should be emailed to gaspipelineexemptions
aer [dot] gov [dot] au (marinuslink2025[at]aer[dot]gov[dot]au).
On Tuesday, 27 May 2025 at 10:30am (AEST) we will hold a public forum on our initial draft decision. You can register your interest on Eventbrite here. Please note registration via Eventbrite will close at 4:30pm on 26 May 2025.
Revenue Proposal
On 29 November 2024 Marinus Link submitted its Stage 1 - Part B (Construction costs) Revenue Proposal to the AER.
We published an Issues Paper on 21 March 2025 and held an online public forum on 3 April 2025. Responses to queries raised during the online public forum are also available on our website.
Stakeholder submissions on Marinus Link's Stage 1 - Part B (Construction costs) proposal and our Issues Paper closed on 18 April 2025 and are available on our website.
Marinus Link letter requesting for FID Guidance
On 20 February 2025, Marinus Link wrote to the AER requesting guidance to support a Financial Investment Decision. The letter and the AER's response are available on our website.
Commencement and Process Paper and RIT-T Update
On 31 March 2023 the AER received a submission from Tasmanian intending transmission network service provider Marinus Link Proprietary Limited (Marinus Link), requesting the AER:
- commence a process for making a transmission determination relating to proposed Marinus Link interconnector, and
- establish a modified determination process to apply when making the transmission determination.
On 1 June 2023 the AER published its decision to commence a revenue determination process for the Marinus Link interconnector and the Commencement and Process Paper outlining the process that will apply for this determination.
On 16 February 2024, Marinus Link wrote to the AER requesting amendments to the Commencement and Process Paper and provided a RIT-T update.
On 15 March 2024, the AER published its decision to approve the requested amendments and an updated Commencement and Process Paper.
On 30 October 2024, Marinus Link wrote to the AER requesting further amendments to the Commencement and Process Paper.
On 3 December 2024, the AER decided to amend the Marinus Link determination process and publish the revised Commencement and Process Paper.
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.