Some places have more hydro than they can use. Iceland generates 100% of its electricity with hydro and geothermal. Plenty of desert areas can be used to site solar PV without much penalty, because they're useless for agriculture. (If you're not feeding the grid but generating a chemical fuel, it doesn't matter that the sun doesn't shine sometimes.)
Watch: link.
The presenter of that video should be flogged, hanged, drawn and quartered, and his head stuck on a pike as a warning to the next ten generations that youtube presenters need to GET TO THE BLOODY POINT!!!
Can you tell me the NAME of this new process? I’ll look it up on my own. Seriously ... that guy is intolerable.