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dunsland cross windfarm

Noise

Sources of noise during operation of a wind turbine are mechanical (from machinery housed within the turbine nacelle) and aerodynamic (from the movement of the blades through the air). Modern turbines are designed to minimise mechanical noise emissions from the nacelle through isolation of mechanical components and acoustic insulation of the nacelle. Aerodynamic noise is controlled through the design of the blade tips and edges.

While noise from the wind turbines does increase with wind speed, at the same time ambient background noise (for example wind in trees) usually increases at a greater rate.
Noise from the proposed Dunsland Cross Windfarm has been assessed following the recommendations of the Government's guidelines on windfarm noise (ETSU-R-97 The Assessment and Rating of Noise from Wind Farms).

After a period of monitoring to determine background noise levels in the area, the predicted noise levels of the proposed turbines was assessed against noise limits derived from this baseline level, in accordance with the guidelines.
The noise levels resulting from operation of the proposed Dunsland Cross Windfarm would comply with the limits set by the guidelines.

Noise conditions will be set and enforced as part of the planning process. Noise during construction can be managed through specifying working hours and equipment, defining (and minimising) access routes and as far as possible minimising traffic levels.