# Marinus Link energy interconnector development > Live situation record from CLSTR: https://clstr.news/situations/marinus-link-energy-interconnector-development > Updated: 2026-10-05T23:31:56.000Z. Sources: 3. Developments: 2. The Marinus Link project, a 345km undersea and underground electricity and data interconnector between North West Tasmania and Victoria, has moved from the regulatory approval phase to active construction. In late September 2026, Marinus Link received Australia’s first Transmission and Infrastructure Licence under the Offshore Electricity Infrastructure Act 2021. This Commonwealth approval, valid until 2090, authorized the construction, operation, and maintenance of the 1500MW capacity subsea cables and fiber-optic infrastructure. Following this approval, construction officially commenced on the Marinus Link and the North West Transmission Developments (NWTD). The project utilizes high voltage direct current (HVDC) technology to facilitate the exchange of Tasmanian pumped hydro for mainland solar and wind energy. While the project was scaled back in 2023, Stage One of the NWTD is expected to be operational by 2030. ## Timeline ### 2026-10-05: Marinus Link construction begins to connect Tasmania and Victoria Construction has begun on the Marinus Link subsea cable and North West Transmission Developments to connect Tasmania and Victoria, supporting Australia’s renewable energy transition. 2 sources. https://clstr.news/cluster/marinus-link-construction-begins-to-connect-tasmania-and-victoria ### 2026-09-25: Marinus Link receives Australia's first offshore transmission licence Marinus Link has secured Australia's first offshore transmission licence, providing final Commonwealth approval for the 345km electricity and data interconnector between Tasmania and Victoria. 2 sources. https://clstr.news/cluster/marinus-link-receives-australias-first-offshore-transmission-licence --- Cite as: Marinus Link energy interconnector development. CLSTR, https://clstr.news/situations/marinus-link-energy-interconnector-development