Marinus Link

Marinus Link was a proposed HVDC interconnector, crossing Bass Strait and connecting the states of Tasmania and Victoria in Australia's National Electricity Market. If constructed, it would have been the second interconnector between these regions.
History.
The first interconnector between the two regions, Basslink, was commissioned in 2005 and had a power rating of 630 MW. This connector experienced a fault in December 2015, rendering it out of service for six months. Hydro Tasmania's role in the usage of the interconnector and short selling of water reserves six months prior was a major factor which resulted in the 2016 Tasmanian energy crisis. After the eventual restoration of service, power rating of the cable was limited to 500 MW.
In 2017 the Australian federal and Tasmanian state governments jointly established the study of the feasibility of a second interconnector between the two regions.
Project Marinus was established in 2018 and partially funded by the Tasmanian Government, through its ageing electricity transmission and distribution business TasNetworks, and the Australian Renewable Energy Agency. It was due to receive a further $56 million from the Federal Government in February 2019 to progress the initial development of the interconnector, subject to a viable feasibility study completion.
Project.
The feasibility study was released in February 2019 and modelled an interconnector with a capacity of either 600 MW or 1,200 MW, connecting North West Tasmania to the Latrobe Valley area of Victoria. Such a connector was found to be economically unviable under the retirement of Victorian coal power stations in the 2020s. These values were used to develop the business case assessment, which was released in December 2019.
The business case failed to support an increased capacity of 1,500 MW, constructed in two stages of 750 MW each. Various options for the schedule of construction was considered between 2027 and 2032.