Wind farm compliance auditing

A wind energy facility can affect the amenity of the surrounding area due to noise, shadow flicker, blade glint, overshadowing and electromagnetic interference. 

Noise may be generated by mechanical noise produced by the wind turbine generators, movement of rotor blades through the air or construction noise. A wind energy facility should comply with the noise limits recommended for dwellings and other noise sensitive locations in the New Zealand Standard NZS 6808:2010 Acoustics – Wind Farm Noise. 

Shadow flicker is a modulation of light as a result of the sun passing behind the rotating blades of a wind turbine, casting a moving shadow or ‘flickering’ effect. Overshadowing is the consistent obstruction of sunlight to a secluded private open space, which may be caused by the size and positioning of the wind farm turbines