I have one question

来源: biglow 于 2008-06-17 09:05:31 [档案] [博客] [旧帖] [给我悄悄话] 本文已被阅读：次 (294 bytes)

And only one question: Where the energy comes from? Split water need energy, and the metal that reacts with water has high reduction energy, and to produce the metal needs a lot more energy, and those energy to produce metal comes from where? Power plant? can you say it is zero emmision now?

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