Canada

What do I know? I've designed pressure vessels as a job.

No. The material requirements for a H2 pressure vessel is vastly more expensive for the reasons I stated above.

H2 reacts with everything, Extreme low carbon stainless is required, on top of the tank wouldn't last long due to hydrogen embrittlement.

Hydrogen being the smallest element literally just permeates through every material.

My current profession involves large equipment. Especially electrically driven equipment.

The mining industry would pay BILLIONS.. scratch that.. TRILLIONS of dollars if hydrogen source was achievable, if they could reduce the need to vent their mines, if their equipment could output only water...

They already pay $$$$$$ for fully electric mining equipment. I've personally worked on those machines and many others like fully electric passenger buses.

They've all abandoned H2. Batteries are the future. H2 is not.

Unless someone can use H2 in a kind of fusion process to generate power... H2 will never be a thing. In combustion or Fuel cell form.

Again, if I was a good idea, we'd be doing it already. No new technology in either materials, chemistry or combustion have come to light that could possibly make H2 viable.

It's a green-washing farce until someone can crack open the hydrogen atom.