A new report commissioned by the Australian Renewable Energy Agency (Arena) aims to breathe fresh hope into green hydrogen, by claiming that the capital cost of producing the potentially game changing renewable fuel could fall by 68 per cent in a little under a decade.

But the Worley-written report has won mixed reviews from experts, who note this optimistic outlook depends heavily on the levels of success achieved in China and the costs of core electrolyser technology coming down, significantly.

It provides a technology roadmap of the kinds of decisions developers could take to make their future projects cheaper, but does not address electricity costs or the absence of political will in Australia to develop the industry.

Where significant progress could be made, the report says, is in digitising construction processes and modular, standardised kit, which combined could provide the tools to cut costs by as much as 68 per cent by 2035.

Original equipment manufacturers (OEMs), could slice another 32 per cent out their costs, it says.