The head of the federal government’s green bank expects investment commitments to scale a new peak this financial year, beating the $4.7 billion record achieved for last year, as long as a commitment is made to construct the Marinus Link power cable between Victoria and Tasmania.

Ian Learmonth, chief executive of the Clean Energy Finance Corporation, said that in non-power grid areas, he was optimistic of a further increase in investments, but that the $3.9 billion Marinus Link project was “the biggest swing factor” for the total for 2025-26.