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Why choose LIDAR

Lidar measurements are designed to address several requirements of the wind energy industry:

  • Initial site surveys
  • Quantifying data above mast height
  • Qualifying uncertain and complex sites
  • Wind modeling verification
  • Mast / Turbine Micrositing
  • Long term resource assessment
  • Wind Shear Profiles
  • Power curve measurements

Why choose 2EN

2EN having experience in the field of wind energy, undertakes wind potential measurements using WINDCUBE by Leosphere.

  • Multiple measurement campaigns since 2008
  • Measurements in both the Greek mainland and the islands
  • Measurements at sites with complex topography
  • Measurements at all times of the year

Support & Services

  • Installation accomplished by experienced personnel
  • Power supply by autonomous hybrid power units designed and manufactured by 2EN (read more about Power Supply Units)
  • Guarantees for data availability
  • 24/7 Remote System monitoring
  • Guarding by Security personnel (if needed)
  • Adjustable measurement period
  • Scheduled data retrieval
  • Data filtering
  • Data analysis
  • Extensive reporting of measurement results

Why choose WindCube

  • Easy set up: 45kg Plug and Play
  • Silent, discreet, robust self protecting unit
  • Steady high resolution throughout full range
  • Monitored through Ethernet or GPRS or 3G
  • Customization for data filtering
  • Scanning cone angle of 30o
  • Airlift capacity by helicopter to remote areas

Principle of operation

A laser pulse is sent through the atmosphere. Along its path, light is scattered by aerosols, dust or water drops. We collect backscattered light and make it interfere with an optical local oscillator. The optical signal is digitized and processed to retrieve the Doppler shift induced by the aerosol's motion. This is an absolute measurement of radial wind speed in the lidar line of sight. Range resolution comes from pulse propagation vs time.

3D wind vector retrieval

4 lines of sight are sequentially scanned to perform geometrical computation of 3D wind vector components (horizontal and vertical wind speeds, and direction). Retrieved wind field corresponds to an average of ~25m thick atmosphere layer which is centered on up to 10 user-defined altitudes. Classical scanning cone angle is 30o and can be rapidly reduced to 15ofor accurate wind profiling in complex terrain.


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