No doubt. There is some promising tech in hydrogen (see Plug Power, Hypersolar, the two new solar hydrogen plants in Dubai and others). Hydrogen is already gaining ground in material handling and as range extenders for EVs But until hydrogen can be produced cost effectively the ICE is here to stay and is as clean, if not cleaner than EVs over all. Still gotta burn coal to charge batteries and the batteries themselves are nasty. If hydrogen production via solar can be scaled, hydrogen will overtake EVs/batteries for on road use IMO.
You take intermittent sources of energy (wind, solar, tidal, etc.,) and use it to generate Hydrogen. Then you store and transport Hydrogen for use at a later time, converting it back into electricity via a fuel cell.
When viewed in this context, Hydrogen makes (slightly) more sense.
But generating Hydrogen from hydrocarbons makes no sense at all.
There is some promising tech in hydrogen...
And compressed air engines, and fuel cells, and the Sterling engine, and the gas turbine...
I’m glad they are working on them, BUT.
It’s like Zeno’s walk, you NEVER get there.
Yes, infinite series and all that, real world not so much.