The unfortunate part is that by burning the stuff you get back water...H2O. Now if that is true, then you would be getting more energy out than energy put in. The problem is that if it takes X energy to split water into H and O, then, by that old rule, "Conservation of Energy" we get back X energy when we burn it...that is combine the H and O to make water. But we also loose in the process, that's where the second law of thermodynamics comes in. It costs energy to change the form of energy. Always. There is really "higher" and "lower" "qualities" of energy. Electricity is a very high quality energy. That's the reason elecric power plants are so inefficient (about 35%). The Finns ulitize a low quality energy, because the price is right, to make electricity. The Icelanders also use geothermal energy. Both cold and hot water is shipped down the street. The hot water heats homes and provides domestic hot water. They do this because it is cheap. So if these folks can get more energy out than they put in, they better get their formal clothes ready and be wating for that call from the guy with the "heavy Swedish accent." Jim Ussailis jim at nationalwireless.com