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It's not particularly energy efficient to make H2 - it really likes to be bonded with other things. Then, you have to compress it and ship it. Electricity 'ships' much easier, and depending on how it was produced, it may be pretty cheap. It's certainly more available, almost everyone has electricity readily available. H2 likes to leak out of things, after all, it is the smallest, least complex element in the universe. There's lots of it, too, but most of it isn't 'free', it's combined with other things.
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