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Uploaded by on Feb 18, 2008

Last year, Allen Barnett and colleagues at the University of Delaware, Newark, set a new record with a design that achieved 42.8 per cent energy conversion efficiency. Barnett says 50 per cent efficiency on a commercial scale is now within reach. Such designs, married to modern manufacturing techniques, mean costs are falling fast too.

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  • This is a great piece -- everyone should watch this ... required viewing fo high school students!

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