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Originally Posted by ken0042
But Lanny, why not use that powerful photocell to generate electricity?
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Because I don't think they are as efficient as a hydrogen engine.
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The main reason Hydrogen is "good" is it can be stored and used when it's convenient; like in a car. The big problem with hydrogen is how explosive it is.
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What of you could keep hydrogen in an inert state until it was needed? What of the seperation process provided fuel almost on demand? What if you filled up your tank with water and the seperator only did its thing when the car was running, storing just enough hydrogen to fill a small tank (about the size of softball) which allowed the combustion engine to start and run?
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And, if every car in the world ran on hydrogen the streets would always be wet from the exhaust. Wet streets cause accidents, and when hydrogen powered cars crash the go boooom!
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So people learn how to drive and the storage tank is housed in more central (armored) location and designed not to rupture in the event of an impact.
This is all possible. I remember in high school (waaaaaaay back in the dark ages) when my chem teacher seperated hydrogen into a balloon during a lab. He extracted a fairly full party ballon in a couple of minutes. We took it outside and he put a match too it (both on the ends of a 6 foor poles). The explosion almost knocked the windows out of the school. That's the power we should be harnessing and its accessible in water. All its going to take is some money and engineering to make it happen. Oh, and the oil lobby to not stop it!