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BassCadet: a big stumbling block to Hydrogen as with other "green" technologies is that it takes a lot of energy to provide them. By virtue of the fact that H2 is a good fuel - i.e. gives off lots of energy in its exothermic reaction with O2 also means that it takes energy to isolate it - 2nd law of thermodynamics etc so no free lunch - it's not found floating around in nature too much as it likes to combine with other substances but where does the energy come from to isolate it or reform it from other compounds? Fossil fuels, so how is that conundrum to be solved?
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