Thermoelectric power generator

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See this page for the theoretical explanation, and this page for a concrete experiment.

It can generate electricity from any temperature difference, no noise, no ware, no maintenance, and can last very long. But the efficiency is not very high, usually under 10%. However, this level of efficiency is enough for a solar home energy center.

The generator is commercially available right now, from Termo-Gen (look for the model TGC 2200-300). More appropriate products with good prices will come later.

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