You can tell all the people that want to use the green h.
Andrew Forrest and Mike Cannon-Brooks have been announcing a WA project for a decade.
If it is shorter than that - just seems that long.
Original was to send solar/electricity to Singapore. Then morphed into using elec to electrolyse green h.
Then methane was mooted (overcomes storage/transport).
Either it is all bulltish fishing for govt grants, or there are real technical barriers like valency and the single electron.
The Brits, French, Russians and surely Chinese are working on a solution, but like fusion projects in those countries, valency and putting in more energy than comes out are real obstacles. Human knowledge.
Fusion works, look up in the sky in daylight. Knowledge to ignite and control, another step.