Shadow Flicker Maps
On this page
 What is Flicker? Flicker Charts Explanation of the charts
Read more health & safety
 Shadow Flicker Noise Dangers More Turbine Failures The Argument for a 2K Setback Conisholme Disaster
What is Shadow Flicker?
  
Shadow flicker occurs when the sun is behind the blades of turbines It happens when the sun is low in the sky in the early
mornings and late evenings
Shadow Flicker can also occur at night when the moon is bright around the full moon Shadow Flicker can make concentration and tasks such as reading impossible
     
Areas affected by shadow flicker 21 March and 21 September
for approx 20 minutes
Areas affected by shadow flicker 21st December
for approx 25 minutes
   
The flicker arcs are based on 82 metre diameter turbine blades The length of the arcs is based on 10 times the height
The shadow flicker from each turbine will pass through each arc for between approx 20 and 25 minutes each day in the evenings when the sun is low The maps show the extremes of the shadow flicker arcs at the spring and autumn equinoxes and the winter solstice
The arcs sweep between these 2 extremes during the other months Only turbines 2,3,4 and 5 have been shown as these affect the Appleton Wiske the most
Appleton Wiske sponsors NHWAG