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Energy BallModel V100 and V200 -Virtually Silent Wind Turbine

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This spherical and virtually silent wind turbine is characterized by the curved rotor blades, which are attached to the rotor hub at both ends. When the Energy Ball® rotor turns it resembles an elongated sphere. This unique feature causes the wind to move parallel to the rotor hub through the rotor. This wind flow pattern forms a key contrast with classic sphere shaped Darrieus turbines, whereby the wind hits the blades perpendicular to the rotor shaft or rotor hub.
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Due to the unusual and exceptional aerodynamic characteristics of the Energy Ball®, it creates a wind flow pattern that converges first and is then accelerated through the rotor, resembling the rapids in a river (the so-called Venturi effect). This translates into a higher aerodynamic efficiency compared to conventional wind turbine designs.

The Energy Ball® begins operating at very low wind speeds (2 m/s) and produces electricity at 3 m/s, which results in a very low standstill time. The lightweight design of the Energy Ball® allows for multiple residential configurations. The fact that the noise level is not detectable above the background noise is a very favorable feature for residential and commercial areas.

  • Aesthetically appealing
  • Produces insignificant cast shadow or shadow flicker
  • Installable on roof, pole or facade mounting
  • Easy to install, operate and maintain
  • Operates in low wind speeds
  • Noise and vibration free
  • Installable in urban and rural areas, residential and business locations
  • Configurable into an integrated wind/solar system
  • Uses wind, a clean renewable energy to produce electricity
  • Produces no emissions