An international consortium is plotting a $70bn green hydrogen development in Western Australia that could eventually tap up to 50GW of wind and solar power, as the race to produce green fuels spurred another record-scale plan.

Developers behind the proposed Western Green Energy Hub (WGEH) include InterContinental Energy and CWP Global, which are also working on massive projects elsewhere in Australia and further afield.

If fully built-out, WGEH would be the largest single-site renewable fuels project planned in the world so far, edging out a 45GW plan unveiled within the last few weeks for Kazakhstan.