ETSU-R-97

The document published in 1996 is the report of the Working Group on Noise from Wind Turbines and contains details of assessment methodologies and criteria. The Working Group consisted of representatives from the industry, consultants and local authorities. The report is not a government document but is referred to in current government guidance as the appropriate method for assessing wind farm noise.

The document provides a simplified noise criterion of 35 dB LA90 for single turbines, or groups of turbines with a very large separation distance to the nearest properties.  Where the simplified approach is not appropriate, a suitable background noise survey is required and noise limits are set using either background noise levels plus 5 dB or fixed limits, whichever is the higher.  All limits are set in terms of dB LA90.

Contact Your Nearest Regional Office


If you would like to discuss our services get in touch with one of our regional offices directly, which are listed below, or email us at 
This e-mail address is being protected from spambots. You need JavaScript enabled to view it. .

Manchester 

Hepworth Acoustics Ltd (Head Office)
21 Little Peter Street
Manchester
M15 4PS

 

Tel: 0161 242 7900
Fax: 0161 235 8407

Contact Manchester

Birmingham

Hepworth Acoustics Ltd
1310 Solihull Parkway
Birmingham Business Park
Birmingham
B37 7YB

Tel: 0121 635 5565
Fax: 0161 235 8407

London

Hepworth Acoustics Ltd
Hamilton House
Mabledon Place
London
WC1H 9BB
 

Tel: 0207 554 8712
Fax: 0161 235 8407

Liverpool

Hepworth Acoustics Ltd
Bulloch House
10, Rumford Place
Liverpool
L3 9DG
 

Tel: 0151 515 0741
Fax: 0161 235 8407

Contact Liverpool

Sheffield

Hepworth Acoustics Ltd
The Innovation Centre
217 Portobello
Sheffield
S1 4DP
 

Tel: 0114 224 2428
Fax: 0161 235 8407

Bristol

Hepworth Acoustics Ltd
1st Floor, Aztec Centre
Aztec West
Almondsbury
Bristol
BS32 4TD

Tel: 01454 203533
Fax: 0161 235 8407