The DIRECTWIND 52 is a pitch-controlled, variable speed wind turbine optimized for distributed energy generation in medium wind speeds (wind class IIA). With its 52-metre rotor and range of tower heights, it is suitable for all locations – and particularly those with planning permission or tip-height restrictions.

Thanks to EWT’s continuous market-driven innovation, the DW52 delivers higher yields than other turbines in the same wind class. Our direct drive technology means fewer moving parts, so less maintenance and more availability. Meanwhile the aerodynamic rotor design ensures high efficiency and reduces noise.

Standard power output options

Other output ratings are available on request.


  • Rotor diameter (metres)
  • 51.5
  • Variable rotor speed: min (rpm)
  • 12
  • Variable rotor speed: rated (rpm)
  • 22 (250 kW), 24 (500 kW), 26 (900 kW)
  • Hub heights (metres)
  • 35, 40 and 50
  • IEC wind class
  • IIA (up to 8.5 m/s average at hub height)
  • Cut-in wind speed (m/s)
  • 3
  • Cut-out wind speed (m/s 10-min average)
  • 25
  • Survival wind speed (m/s)
  • 59.5 m/s
Power curve of the DW52-500kW

You can choose from a wide range of options to tailor your EWT turbine to your specific requirements and local conditions. These include:

  • Aviation light
  • Shadow flicker
  • Ice detection
  • Cold climate package
  • Black blades
  • Climb assist
  • Low-voltage ride through (LVRT)
  • Automatic voltage control
  • Frequency response
  • Power curtailment

1. Rotor blades
Large rotor diameter to achieve high energy yields. Optimum aerodynamic performance, resulting in high efficiency and low noise levels.  

 2. Variable pitch
Each blade is automatically pitch to control the generator rotation speed

 3. Nacelle design
Spacious nacelle design for excellent serviceability and maximum safety.

4. Direct drive generator
Fewer rotating parts reduce mechanical stress, leading to a lower maintenance need an therefore superior availability levels.

5. Tower design
Type Conical tubular steel, internal ascent. Hub heights 35, 40 and 50 m

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