Shadow Flicker

Neo Environmental use the most up-to-date software (including ReSoft WindFarm and GIS) to analyse the potential shadow flicker effect using variables such as hub height and blade sweep for nearby sensitive receptors (residential properties).

Our specialists can undertake shadow flicker complaint investigations and where necessary use our specialist software to identify which turbines are causing shadow flicker and advise on mitigation measures

The methodology used to assess shadow flicker (caused when rotating wind turbine blades periodically cast shadows over neighbouring properties as they turn) is set out in the  Department of Energy and Climate Change (DECC) (2011) document as well as various pieces of national legislation

Generally, the impacts of shadow flicker are considered not to adversely impact properties which are greater than 10 rotor diameters from a wind turbine. However, this will depend on the location of the wind turbine in relation to the properties, as if it is on more elevated ground then there is the possibility that longer shadows could be cast.Any properties within 10 rotor diameters will need to be comprehensively assessed and modelled to identify the number of hours of shadow flicker that may occur. Some councils require properties outside the 10 rotor diameter radius to also be assessed.

 

 

Our Shadow Flicker Services include:

Wind Energy Shadow Output Maps
Assessments to support Wind Energy Applications
Complaint Investigations
Bridle Way Assessments

CASE STUDIES

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