Camilty Wind Farm - Partnerships for Renewables
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Camilty Wind Farm - Partnerships for Renewables

Camilty Wind Farm - Partnerships for Renewables Camilty Wind Farm - Partnerships for Renewables

pfr.co.uk
07.02.2014 Views

Camilty Wind Farm 8.8.15 Chart 8.26 shows the distribution of wind directions coinciding with the noise monitoring at Parkview Cottages. Chart 8.27 displays the proportion of data which falls into each of the broad categories (or ‘headings’) described in the extract from the Good Practice Guide consultation paper above. Chart 26: Wind Rose Wind rose NNW 20% N NNE 15-25m/s NW 15% NE 10-15m/s 5-10m/s 0-5m/s 10% WNW ENE 5% W 0% E WSW ESE SW SE SSW SSE S Chart 27: Noise reduction proportions (wind direction related) 0 to 80 degrees (little or no reduction) 80 to 90 degrees (c. 2dB(A) reduction) 90 to 180 degrees (up to 10dB(A) reduction) 180 to 270 degrees (up to 10dB(A) reduction) 270 to 280 degrees (c. 2dB(A) reduction) 280 to 360 degrees (little or no reduction) March 2013 8-35 ES Chapter 8 Noise Copyright Partnerships for Renewables Development Co. Ltd 2013 ©

Camilty Wind Farm 8.8.16 It can clearly be seen that the prevailing wind direction is between 180 to 270 degrees, or southerly, south westerly and westerly. 8.8.17 Re-examination of the proposed wind farm reveals that certain properties lie at angles greater than 90° relative to the turbines, assuming a prevailing south westerly wind. These include Aberlyne, Crosswood and Harburnhead. It is therefore reasonable to expect that the noise immission contribution from Camilty wind farm will be less than predicted in this Chapter under prevailing conditions. 8.8.18 It is also reasonable to conclude that the operational noise contribution received from each wind farm at each NSR will vary with changing wind conditions, depending upon the position of the turbines relative to the NSR. 8.8.19 Taking the potential influence of prevailing wind direction into account it is possible that the projected cumulative impact is likely to be less in reality than that calculated as a worst case scenario. Moreover, it should be noted that neither of the two projects considered cumulatively with the proposed wind farm are consented or indeed sure to be given consent. It is considered, therefore, that whilst cumulative effects must be considered in combination with these two projects as a matter of best practice, the weight that should be attributed to the related potential effects should not be the same as that would be attributed to such effects in combination with consented or operational wind farms. 8.9 References • The Control of Pollution Act 1974, Part III • Environmental Protection Act 1990 • Planning Advice Note (PAN) 1/2011;Planning and Noise • Scottish Government Factsheet Onshore Wind Turbines; Available at: http://www.scotland.gov.uk/Resource/Doc/212607/0114118.pdf • British Standard 5228 (2009) Code of practice for noise and vibration control on construction and open sites Part 1: Noise • The Working Group on Noise from Wind Turbines The Assessment & Rating of Noise from Wind Farms (ETSU-R-97) (1996) • Bowdler, D., Bullmore, AJ., Davis, RA., Hayes, MD., Jiggins., Leventhall, G., and McKenzie, AR (2009), Prediction and assessment of wind turbine noise – agreement about relevant factors for noise assessment from wind energy projects, Acoustics Bulletin Vol 34 No. 2 • International Electrotechnical Commission (2006), Standard IEC-61400-11 Wind turbine generator systems – Part 11: Acoustic Noise Measurement Techniques, Available at: http://www.asugards.net/dbpics/uploads/iec61400- 11%7Bed2.1%7Den.pdf March 2013 8-36 ES Chapter 8 Noise Copyright Partnerships for Renewables Development Co. Ltd 2013 ©

<strong>Camilty</strong> <strong>Wind</strong> <strong>Farm</strong><br />

8.8.15 Chart 8.26 shows the distribution of wind directions coinciding with the noise monitoring at<br />

Parkview Cottages. Chart 8.27 displays the proportion of data which falls into each of the<br />

broad categories (or ‘headings’) described in the extract from the Good Practice Guide<br />

consultation paper above.<br />

Chart 26: <strong>Wind</strong> Rose<br />

<strong>Wind</strong> rose<br />

NNW<br />

20%<br />

N<br />

NNE<br />

15-25m/s<br />

NW<br />

15%<br />

NE<br />

10-15m/s<br />

5-10m/s<br />

0-5m/s<br />

10%<br />

WNW<br />

ENE<br />

5%<br />

W<br />

0%<br />

E<br />

WSW<br />

ESE<br />

SW<br />

SE<br />

SSW<br />

SSE<br />

S<br />

Chart 27: Noise reduction proportions (wind direction related)<br />

0 to 80 degrees (little or no<br />

reduction)<br />

80 to 90 degrees (c. 2dB(A)<br />

reduction)<br />

90 to 180 degrees (up to 10dB(A)<br />

reduction)<br />

180 to 270 degrees (up to 10dB(A)<br />

reduction)<br />

270 to 280 degrees (c. 2dB(A)<br />

reduction)<br />

280 to 360 degrees (little or no<br />

reduction)<br />

March 2013 8-35 ES Chapter 8<br />

Noise<br />

Copyright <strong>Partnerships</strong> <strong>for</strong> <strong>Renewables</strong> Development Co. Ltd 2013 ©

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