Swept area
The consultation Permitted development rights for small scale renewable and low carbon energy technologies and electric vehicle charging infrastructure published March 2012 refers to swept area as 'The swept area is calculated as follows:pi (π) x radius2. Radius is half the total blade diameter."
The government Renewable and low carbon energy guidance designed to help local councils in developing policies for renewable and low carbon energy, identifying planning considerations refers to swept area in relation to potential impactzs on electromagnetic transmissions: "Wind turbines can potentially affect electromagnetic transmissions (eg radio, television and phone signals). Specialist organisations responsible for the operation of electromagnetic links typically require 100m clearance either side of a line of sight link from the swept area of turbine blades. Ofcom acts as a central point of contact for identifying specific consultees relevant to a site." (paragraph: 017 Reference ID: 5-017-20140306 revision date: 06 03 2014)
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