Reliable Vertical Axis Water Turbine with increased efficiency
Vertical Axis Water Turbines of Water2Energy have foils connected to a central vertical shaft that protrudes the waterline, so vital components like the gearbox and generator are above the water surface. This reduces the requirements for the watertightness and sealings, reducing the costs of these components significantly. Foils have a very cost effective standard and constant cross section. Since the gearbox and generator are easily accessible, maintenance will be more cost effective too. In addition W2E has a system for pitch control of the vertical foils, thus further improving the efficiencies of the turbine. Pitch control was tested on fish friendliness during the international Pro-tide program. Till recently, the abnormal fish mortality up to 20% (In the older Kaplan-turbines) is still accepted, but the turbine of Water2Energy showed a fish mortality lower than 1%, conform upcoming regulations.