Envoloji Mühendislik Çevre Teknolojileri A.Ş.

Shadow Flicker Modeling

Geometric and temporal modeling of shadow flicker caused by wind turbine blades.

Shadow flicker modeling graphic showing the sun path and turbine shadow exposure zones

Shadow Flicker Modeling

We assess shadow flicker, which can occur when wind turbine blades periodically pass between the sun and a sensitive receptor, through geometric and temporal modeling.

Turbine coordinates and dimensions, sun position, topography, settlements and sensitive receptors are defined in the model to calculate theoretical and, where required, realistic exposure durations. Results are interpreted against the requirements of the relevant authorities and good international industry practice; where necessary, we recommend mitigation measures such as turbine control, micro-siting or operational curtailment.

Scope of service

  • Modeling of turbine coordinates, dimensions and sun position
  • Definition of topography and sensitive receptors in the model
  • Calculation of theoretical and realistic exposure durations
  • Recommendations on turbine control, micro-siting and operational curtailment

Related topics

  • shadow flicker analysis
  • shadow flicker modeling
  • wind turbine shadow effects
  • exposure duration

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