An Australian government-backed trial to create “virtual gas wells” using renewable electricity may demonstrate that small-scale, “stackable” units could be viable in making power-to-gas technology work at scale, the company providing electrolysers for the project has said.

The UK’s minister for energy has said that her government is not planning any framework of incentives for energy storage, but said nonetheless that public funds can help “bridge the gap” between ideas and commercialisation.