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Screw Hydro Turbine | by HydroScrew
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Screw Hydro Turbine

Screw Hydro Turbine with algae buildup

A modernised version of a 2000 year old Greek invention - the Archimedean screw - produces clean, green and effortless energy. The scheme is now up and running and generating renewable electricity.

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Taken on September 23, 2010