The problem with hydrogen, is you need electricity to seperate it from a water molecule. And the net energy you get from this following the burning a hydrogen atom is negative.
Now this article is talking about generating the electricity for this purpose from Solar Power, which makes the most sense, as its inefficient to use fossil fuel generated electricity to use hydrogen.
I can imagine massive hydrogen "refineries" which are just very large solar power plants exclusively used to produce hydrogen for fuel.
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