Wind- und Umweltgutachten für
Windenergieanlagenstandorte

 

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WIND DATA


Wind statistics by meteorological stations

  • made by weather services mostly with WAsP method and data of the weather station
  • JH Wind also manages these data with WAsP in most cases
  • precondiction are suitable comparing plants to verify the calculated yields
  • usage at estimations of yields and in wind potential studies
  • it is often recommended to make measurements at the proposed sites, especially in complex areas

Anemometer measurements

  • measurements by anemometers are a reliable source for data
  • sufficient heights over ground are necessary
  • JH Wind works together with companies building measurement poles
  • is useful to find a fitting solution for your site
  • evaluation of data is made by JH Wind

Lidar measurements

  • Lidar (Light Detection And Ranging)
  • measurements in the whole rotor disc can be made through possible heights up to 250m
  • laser rays are sent and reflected by aerosols
  • wind speeds and wind directions can be calculated out of transit times
  • Lidar plants are installed in few hours
  • a flexible use at different sites of the park are possible
  • Lidar data are evaluated by JH Wind
  • JH Wind has invite offers so customers can rent plants for their projects.

Data for reanalysis

  • application in long-term correlation
  • time series of wind speed and direction
  • calculated out of meteorological models
  • data input out of several sources
  • measurements at planned site or nearby measurement stations cannot replaced by data for reanalysis
  • but they are suitable for showing the fluctuation of  the wind regime over time
  • short-term measurements can be corrected for long-term
  • JH Wind does the necessary test of the data for reanalysis concerning their suitability for the proposed site
  • chooses the most suitable data base out of several

Wind indices

  • fluctuations of wind appearance over time will be shown by means of yield data of existing WET
  • there are wind indices, which are made with WET of specific regions
  • JH Wind uses yield data of existing WET and builds regional wind indices if a sufficient data base is available
  • it is possible to calculate yield fluctuations in a calculation model by using data for reanalysis
  • to create a fitting site specific wind index

 


We work according to the technical guidline: 

TG 6 – Determination of wind potential and energy yields

published by:  FGW e.V. – Federation of Wind and other Decentralised Energies Oranienburger Straße 45 10117 Berlin Germany  

revision 10 as at Oktober 26th 2017

 

 

JH Wind GmbH
Amtsgericht Freiburg HRB 708246
Managing Director: Johannes Hagemann