Wind Farm Noise
Environment & Climate Change
Fehily Timoney and Company (FT) have a team of in-house engineers and scientists specialising in wind farm developments across a range of disciplines. FT undertake a full range of acoustic consultancy services for all stages of wind farm developments throughout Ireland.
FT carry out windfarm noise impact assessment during the planning stages of wind farm projects. This includes conducting reviews of candidate turbines, baseline noise monitoring, setting proposed operational noise limits in line with current guidance, advice on noise during the construction phase of wind farm projects, noise predictions and impact assessment of windfarm operational noise using 3-D noise modelling software, and developing site-specific curtailment strategies.
FT have prepared numerous noise impact assessments for a range of wind farm developments throughout Ireland, with recent projects including Ballinagree Wind Farm, Annagh Wind Farm and Coom Green Energy Park.
Post completion, FT also offer a range of acoustic services to wind farm operators, including operational noise compliance monitoring, Amplitude Modulation and tonal noise measurements, and acoustic consultancy services for wind farm repowering.
During the planning stages, FT provide assistance to clients in the selection of suitable baseline noise monitoring locations. Baseline noise monitoring is normally conducted over a period of weeks, for the purpose of setting proposed operational noise limits in line with current guidance. This is specified in the Wind Energy Development Guidelines 2006, ESTU-R-97 and the Institute of Acoustics Good Practice Guide to the Application of ETSU-R-97 for the Assessment and Rating of Wind Turbine Noise.
FT provide advice on noise emissions during the construction phase of wind farm projects, including carrying out noise predictions and proposing noise mitigation schemes to minimise potential impacts on nearby residential properties, in line with best practice guidance BS5228 Code of Practice for Noise and Vibration Control on Construction and Open Sites.
Prediction and assessment of windfarm operational noise is carried out by FT using 3-D noise modelling software, in line with standard ISO 9613 Attenuation of Sound During Propagation Outdoors. FT can develop site-specific curtailment strategies to meet the WEDG 2006 criteria at different windspeeds.
Post completion, operational noise compliance monitoring is often required in Ireland. FT have been appointed by numerous wind farm operators throughout Ireland to provide assistance with noise compliance monitoring. As part of this process, FT review the planning conditions relating to noise for the purpose of developing a noise monitoring program. This often requires liaison with local planning authorities to confirm the agreed method. Noise is monitored at representative noise sensitive locations and the derived prevailing noise levels are then used to determine compliance with the prescribed noise criteria.