Re: Think
Stop demolishing straw men. Presuming you're the same AC that kicked this off with "H2 cars are the future, why bother with EV", you're now banging on about molecule sizes. Lets take the facts:
* transporting and storing hydrogen is well known to be harder than (say) bunker oil. Yes, there are solutions, but at a cost.
* I see now you're suggesting deepwater, floating wind-farms generating H2 far off-shore, in particularly windy locations. Possibly the most hostile environment for industry on the planet, and yet your idea of reducing a single point of failure is to not run a cable to the plant, in favour of generating and storing massive amounts of hydrogen in tanks for offloading to tankers. I can't see how a risk assessment of this project would conclude that an electricity cable (already run in the hundred to every existing offshore, shallow water windfarm) is a problem compared to your proposed floating bomb.
* "Green H2 does not have to be produced at the very moment you fill your tank" - no, it doesn't, and again as a grid storage technology I think it's a great idea. Green H2 is a way of storing excess electricity, and viewed that way it's excellent. I'm arguing against burning it in cars, which was your original suggestion.
* "Green H2 can be produced by people themselves, or by communities, or by the gas station"
Now you're just being silly. Green H2 is produced from electricity. Can communities run their own solar panels? Yes, they already do, and they put the electririty straight in their car batteries. I do this myself, it's passive and uses relatively simple hardware. The idea that anyone should be cracking water to H2 at immense pressures and temperatures instead, incurring a 20% conversion cost (roughly, as I recall from last I estimated this) is just ridiculous.
H2 is good. H2 in cars is not - it doesn't solve any problems we have now, which is basically lack of charging infrastructure and (more long term) lack of generation capacity. H2 currently has *no* charging infrastructure and is generated from electricity that could otherwise be used directly. It's not a solution, and you haven't made any argument that says it is.