In May this year the Institute of Acoustics (IoA) published a study, A Good Practice Guide to the Application of ETSU-R-97 for the Assessment and Rating of Wind Turbine Noise (hereafter Good Practice Guide) on how to assess the probable noise impacts on neighbours of a proposed wind power installation. REF has a long established interest in this field, which bears directly on public acceptance of wind power, and we submitted Freedom of Information (FoI) requests to both DECC and the IoA. The responses we have received to date are published here.
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