As an interesting aside, the leading use for hydrogen today, with over 50% of all hydrogen used, is in oil refining. That hydrogen (along with almost all the b

As an interesting aside, the leading use for hydrogen today, with over 50% of all hydrogen used, is in oil refining. That hydrogen (along with almost all the balance) comes from steam-reformed natural gas. It's also true that more electricity is consumed refining gasoline (without even figuring the oil itself's energy) than in producing hydrogen (per gge). The important distinction is that gasoline is an outstanding motor fuel, able to deliver 3000x the volumetric energy density of hydrogen gas, 6x the volumetric energy density of compressed hydrogen and 3x the volumetric energy density of liquefied hydrogen. Those numbers get even more stark when you add in tank weights. Musk's Youtube video demonstrates a battery changeout faster than a gasoline fillup (BTW, ever filled up a tank with H2? It's not as fast as gasoline per gge; not even close). I share the BS opinion on hydrogen fuel cells. Hydrogen tanks cost too much, weigh too much and better alternatives exist.