Project Marinus

Project Marinus comprises Marinus Link and the North West Transmission Developments (NWTD). Marinus Link is a proposed electricity and telecommunications interconnector between Tasmania and Victoria. The NWTD includes upgrades to Tasmania’s electricity transmission lines and other energy infrastructure to support Marinus Link and further renewable energy developments. Project Marinus will unlock Tasmania’s renewable energy and storage potential.

Project Marinus fast facts

• Project Marinus is progressing through the Design and Approvals (D&A) phase and is currently funded by the Tasmanian and Australian governments.
• TasNetworks is the proponent for the NWTD scope and Marinus Link Pty Ltd is the proponent for the Marinus Link scope, with both businesses being fully owned by the Tasmanian Government.
• A Final Investment Decision (FID) for Project Marinus is planned for 2024.
• The Australian Energy Market Operator (AEMO) has also confirmed through the Integrated System Plan 2022 that Marinus Link is a critical, and urgently required part of Australia's low-cost, reliable and clean energy future.
• In April 2022, the Australian and Tasmanian governments announced a further $150 million commitment to progress the project to a FID.
  • See here for further information on the funding agreement: https://federalfinancialrelations.gov.au/agreements/support-project-marinus-and-delivery-tarraleah-hydro-power-scheme-redevelopment
• In October 2022, the Australian and Tasmanian governments executed a Letter of Intent (LoI) outlining a range of intended ownership, cost allocation and funding arrangements for the future construction phase of Project Marinus.
  • See here for further information on the LoI: https://www.pm.gov.au/media/rewiring-nation-plugs-marinus-link-and-tasmanian-jobs
• The first 750MW stage of Marinus Link is planned to be in service by 2028-29, and the second stage by 2030-31.
• At peak construction, Project Marinus is expected to create up to 1,400 jobs in Tasmania and generate around $1.4 billion in direct economic stimulus.​
• ​Project Marinus Link will unlock up to $7 billion worth of economic activity by unlocking broader renewable energy investments, creating thousands of jobs in Tasmania.
• Project Marinus supports the Tasmanian Government's commitments to develop a hydrogen industry in the state (see here), the Tasmanian Renewable Energy Target (see here), and Hydro Tasmania’s Battery of the Nation hydropower projects (see here).
• For further information, please refer to the Marinus Link and NWTD proponent websites:
  • Marinus Link (progressed by Marinus Link Pty Ltd)
  • North West Transmission Developments (progressed by Tasmanian Networks Pty Ltd)

More detailed information on Marinus Link is available here.