Unfortunately it takes more energy to split hydrogen from water than what you get when it combusts back to water, kind of a pointless the way they do it now. Controlled nuclear fusion with hydrogen, thats the Holy Grail and if anyone discovers it I hope it's a white man not a jew. did I not say the future is Hydrogen? and you get a lot more power out of fusion than is needed to split water(thats what i meant) the longest fusion has ever lasted in a lab on earth is 7 seconds I belive :( it will be a while before we can mimic the sun.