Those plans, which had already drawn industry scepticism, are now unviable, with costs spiralling and uncertainty over demand, Forrest said in an interview in Davos.
Billionaire Andrew Forrest sees an opportunity to export green fuels to Singapore after the collapse of a A$30 billion ($27.6 billion) project to supply clean electricity from Australia.
Developer Sun Cable entered voluntary administration last week amid disputes between investors including Forrest and Atlassian Corp. co-founder Mike Cannon-Brookes over the viability of sending solar power via a 4,200-kilometre (2,600-mile) cable from Australia’s Northern Territory to the city-state.

