Generation of hydrogen from solar is perfectly fine, to assure 24/7 power for all things, including even air transportation, given we monetise the energy, all of the problems are solved, the complete system solution is there, even removing batteries, filtrating and circulating water, and generation of food from hydrogen. Further, things like Concorde become viable again.

As I said, the proof is in the link supplied. If you doubt this, I would appreciate you pointing out there which part of it you think is incorrect.