And as for the low efficiency and electrolysis in the production...

And as for the low efficiency and electrolysis in the production of hydrogen....? This new tech at 15% (and rising you would expect) placing it just behind current solar...? Well I think you should rethink that not being a crucial step.

“A classic solar panel is able to turn 18 to 20% into electricity. To produce ‘green’ hydrogen you have to start an electrolytic reaction to separate hydrogen and oxygen out of water and that costs a lot of energy.That’s why much of today’s produced hydrogen is still ‘grey’, produced by separating the hydrogen out of oil or other gases, which is still fairly energy demanding.Now the team has developed a special solar panel which produces directly hydrogen (and oxygen). The panel (1,6 m2) is now able to turn 15% of the solar energy into hydrogen and that’s a world record.”