French Patent 3-D Blade design wind turbine generator Low wind speed at 2.5 m/s Quiet operation Robust construction 300W, 2KW, 4.5KW and 8KW wind turbine. Nheolis wind turbine generator have unique advantage as follows:-Silence: The unique shape of blades does not cause wind shear. 35dB at 12m/s wind speed.-Performance: high efficiency; working wind speed from 2.5m/s-36m/s; with MPPT function ...