ZOTLÖTERER - worldwide first Gravitation Water Vortex Power Plant - YouTube

https://www.youtube.com/watch?v=oo_mP18IXMo

10kW Gravitation Water Vortex Power Plant (since 2006) with Zotlöterer-turbine (since 2009) in Obergrafendorf (Austria) - the first hydro power plant which g...