Marinus Link is a proposed electricity and telecommunications interconnector between Tasmania and Victoria. It will enable the flow of electricity in both directions between the two states, delivering low-cost, reliable and clean energy for customers in the National Electricity Market (NEM). It will enable excess energy generated on the mainland to be stored in Tasmania’s hydro storage, and made available for use when NEM demand outstrips supply.
The underground and undersea electricity and data cable will run 255km undersea from North West Tasmania to Waratah Bay in Victoria, then a further 90km underground to the Latrobe Valley. Converter stations at each end will be constructed and convert the electricity from direct current (DC) to alternating current (AC), for use in the states’ grids.
Marinus Link will have a 1500-megawatt (MW) capacity, equal to the power supply for 1.5 million Australian homes.
The project will be delivered in two stages. Construction of stage one is expected to start in early 2025.