VAWT vs HAWT

Vertical Axis Wind Generators (VAWT's)

  • Main rotor shaft in vertical direction

  • Operates with wind from any direction

  • Designed for low wind speed

  • Operates at a low RPM

  • Lower Vibration levels

  • Small noise levels

Horizontal Axis Wind Generators (HAWT's)

  • Main rotor shaft in the horizontal direction
  • Small generators are pointed into the wind by a simple wind vane
  • Requires a relatively high wind speed
  • Operates at a high RPM
  • Higher vibration levels
  • Can be noisy