10 surprisingly easy sources of alternative energy
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Ocean Thermal Energy Conversion (OTEC)
Ocean thermal energy conversion, or OTEC for short, is a hydro energy conversion system that uses the tempurature difference between deep and shallow waters to power a heat engine. This energy could be tapped by building platforms or barges out at sea, taking advantage of thermal layers found between the ocean depths.
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Comments
Looks like a type of Stirling engine. I wonder if the temperature differential between air and water would be greater, though...
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