Marinus Link project gets final okay from government: Prysmian will supply cable

Marinus Link has secured FID approval to build a 1.5 GW electricity interconnector between Tasmania and Victoria. Stage One, led by Prysmian Group and Hitachi Energy, begins in 2026 with a 750 MW undersea and underground cable system, enhancing renewable integration and strengthening Australiaโ€™s National Electricity Market.

Marinus Link has received its long-awaited Final Investment Decision (FID) from government stakeholders, officially clearing the way for construction. This major electricity interconnector will link Tasmania and Victoria, marking a big step forward in Australiaโ€™s clean energy future. For more details, visit the Marinus Link official website and TasNetworks.

Construction Timeline and Key Details

Construction for Stage One will begin in 2026 and finish by 2030. This first phase will create a second high-voltage direct current (HVDC) link across the Bass Strait, adding 1.5 GW of capacity through two 750 MW connections. Specifically, Stage One includes a 750 MW cable stretching between Burnie, Tasmania, and Hazelwood, Victoria. It features around 250 km of undersea cable and 90 km of underground cable. Together, these components will strengthen energy reliability and boost cross-state power sharing.

Industry Leaders and Major Components

Two global energy leaders will deliver key parts of Stage One:

  • Prysmian Group, throughย Prysmian PowerLink, willย supply and installย the undersea and undergroundย HVDC cables. Learn more about their advanced cable technology atย Prysmian Group.
  • Hitachi Energyย willย build the HVDC converter stations, which handleย AC/DC power conversion. Explore their transmission solutions atย Hitachi Energy.
    Together, these companies will ensure reliable, efficient power connections between the two states.

Looking ahead, Stage Two aims to add another 750 MW of capacity. However, its progress will depend on market conditions, regulatory approval, and the expansion of dispatchable generation in Tasmania. Furthermore, this stage will align with the later phase of the North West Transmission Developments (NWTD). Although planning continues, contracts for Stage Two have not yet been awarded.

Strengthening Australiaโ€™s Renewable Energy Future

Importantly, the Marinus Link forms the core of the broader Project Marinus initiative. Alongside the existing Basslink interconnector, it will improve Tasmaniaโ€™s energy infrastructure and support grid modernization. Powered by TasNetworks and Marinus Link Pty Ltd, the project will unlock Tasmaniaโ€™s rich hydro and wind resources. In turn, it will help export clean power to mainland Australia, increase grid flexibility, and accelerate the nationโ€™s energy transition goals.

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