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Hydrogen will be one storage medium among many. It is not the cheapest, but has certain practical advantages that overcome that, in places.

>Hydrogen is a great way to store energy

Have we solved hydrogen embrittlement? Last time I checked storage was terrible compared to something like LNG/LPG.

The difficulty imposed by embrittlement is greatly overstated. It just means one needs to pay attention and not use the wrong material. Since the world manipulates some 70 megatons of hydrogen each year, it should be obvious that materials are well known that can contain this gas (otherwise, how the hell could that huge amount of gas have been manipulated?)

I like the cut of your jib mister.