A simple idea, but innovative technology from Austria: Strom-Boje of AquaLibre!
Without a lot of effort, Strom-Boje utilze the power of our rivers.
Strom-Boje works without dams or concrete dams, neither influences the water level, nor causes a reduction of the flow speed, no fast running turbines are necessary and it does not impair nature and landscape.
Watch this introductory video (in German) of Strom-Boje and it´s inventor Fritz Mondl:
More info on AquaLibre´s
Website