Camilty Wind Farm - Partnerships for Renewables

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

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Camilty Wind Farm 8.3.4 The benefit of this approach is that is allows the determining authority to directly compare the effects of each scheme against the same baseline for those properties where there is an overlap of influence. 8.3.5 Where data has been extracted from the Harburnhead or Fauch Hill ES Chapters, reference has been made to the original figures. The methodology for gathering of baseline data employed in both of the other assessments is discussed in more detail below (section 8.3.18 onwards). 8.3.6 WLC has also been consulted on the subject of a representative monitoring location for those properties to the north of the proposed development, which have not been represented in the other wind farm ES documents. Representative measurements for dwellings in this area were undertaken at Parkview Cottages. WLC has agreed that this is an acceptable proxy location. 8.3.7 Measurement data from these four locations (i.e. Harburnhead, Aberlyn, Halfway House and Parkview Cottages) has therefore been used to assess each of the identified Noise Sensitive Receptors (NSR) in the vicinity of the proposed wind farm. 8.3.8 With respect to setting appropriate limits against which to assess the predicted operational noise levels, WLC indicated that the lower fixed portion of the quiet daytime limit should be as close to 35dB(A) as possible or else measured background +5dB(A), whichever is the greater as recommended in ETSU-R-97. For night time, the lower fixed limit should be 43dB(A), or else measured background +5dB(A), whichever is the greater. These limits should be applied both to the scheme and cumulative assessments. 8.3.9 It was further agreed that the assessment would consider a candidate turbine which would reflect the worst possible case within the parameters of turbine hub height and power generation. For the purposes of this assessment, both the Vestas V-90 3MW and Nordex N100 2.5MW were initially considered, both of hub height 80m. The final assessment is based on the Nordex N100 2.5MW as it has a higher proportion of low frequencies than the Vestas, which are less well absorbed by atmospheric conditions. Baseline Conditions 8.3.10 The 6 turbines comprising the proposed wind farm are to be located in Camilty Plantation which lies approximately 2 km to the south of the settlement of Harburn. The land is managed by the Forestry Commission Scotland and there are scattered dwellings around the perimeter of the proposed development site. 8.3.11 A large portion of land to the north-east of the proposed development area forms Harburn Estate which is used for various events and leisure activities. There is a cluster of dwellings including High Camilty and Camilty Lodge immediately to the north adjacent to the boundary with Harburn Estate. Parkview Cottages lies immediately to the west of these dwellings. The B7008 transects the site from east to south west and there are 2 dwellings (Halfwayhouse and Brookbank) which are adjacent to the road to the east of the proposed wind farm development area. To the south, there is another cluster of dwellings including Aberlyn, Crosswood and Crosswoodburn. There are no dwellings to the west within 1.5 km. Harburnhead, a dwelling and associated stables lies to the north west adjacent to the boundary with Harburn Estate. 8.3.12 West Colzium to the south east was found to be derelict and has not been considered in this assessment. March 2013 8-5 ES Chapter 8 Noise Copyright Partnerships for Renewables Development Co. Ltd 2013 ©

Camilty Wind Farm 8.3.13 Generally, ambient noise levels are fairly low and the noise climate consists of occasional proximal vehicle movements and distant road traffic, birdsong, wind through foliage etc. 8.3.14 A representative selection of the closest dwellings (referred to as NSRs) to the proposed wind farm were identified based on geographical distribution. A site plan detailing all dwellings within 2 km from the turbines is presented as Figure 8.1. Only those dwellings within 2 km have been considered for the purposes of this assessment, with the exception of Colzium (NSR3 on Figure 8.1) which is just over 2 km, but considered important in terms of cumulative effect (from Fauch Hill Wind Farm). 8.3.15 The operational noise levels for the proposed wind farm and cumulative position have been predicted at each of these locations. This selection is not intended to be exhaustive within a 2 km radius of the edge of the turbines – rather, where there are groups of dwellings, one or two have been selected as it is anticipated that noise immissions will be very similar at properties in the immediate vicinity of each other. 8.3.16 This is particularly true, given that the operational noise model does not include for the effects of local topography, an approach taken to avoid overcompensating for the barrier effects of topographical features as recommended in the IoA Bulletin paper discussed above. 8.3.17 The following Table 8.1 describes the location of each of the identified NSR which have been considered in the assessment of operational wind turbine noise. For each NSR, the source of the baseline data against which the predicted levels have been assessed is also stated. Table 8.1 Identified Noise Sensitive Receptors (NSRs) NSR Ref Name Approximate distance to closest turbine (m) Representative Baseline Monitoring Location 1 Aberlyn 870 Aberlyn (Harburnhead ES 1 ) 2 Camilty Lodge 1580 Parkview Cottages 3 Colzium 2440 Halfwayhouse (Fauch Hill ES 2 ) 4 Crosswoodburn / Crosswood 880 Aberlyn (Harburnhead ES) 5 Halfwayhouse / Brookbank 1250 Halfwayhouse (Fauch Hill ES) 6 Harburn House 1520 Harburnhead (Harburnhead ES) 7 Harburnhead 1270 Harburnhead (Harburnhead ES) 8 High Camilty 1240 Parkview Cottages 9 Over Williamston 1970 Parkview Cottages 10 Parkview Cottages 1690 Parkview Cottages 11 Whistle Lodge 1800 Parkview Cottages 1 Harburnhead Windfarm ES Table 12.4 2 Fauch Hill Windfarm ES 9.4 Baseline Conditions and Technical Appendix 9.3 Table 1 March 2013 8-6 ES Chapter 8 Noise Copyright Partnerships for Renewables Development Co. Ltd 2013 ©

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

8.3.4 The benefit of this approach is that is allows the determining authority to directly compare the<br />

effects of each scheme against the same baseline <strong>for</strong> those properties where there is an<br />

overlap of influence.<br />

8.3.5 Where data has been extracted from the Harburnhead or Fauch Hill ES Chapters, reference<br />

has been made to the original figures. The methodology <strong>for</strong> gathering of baseline data<br />

employed in both of the other assessments is discussed in more detail below (section 8.3.18<br />

onwards).<br />

8.3.6 WLC has also been consulted on the subject of a representative monitoring location <strong>for</strong> those<br />

properties to the north of the proposed development, which have not been represented in the<br />

other wind farm ES documents. Representative measurements <strong>for</strong> dwellings in this area were<br />

undertaken at Parkview Cottages. WLC has agreed that this is an acceptable proxy location.<br />

8.3.7 Measurement data from these four locations (i.e. Harburnhead, Aberlyn, Halfway House and<br />

Parkview Cottages) has there<strong>for</strong>e been used to assess each of the identified Noise Sensitive<br />

Receptors (NSR) in the vicinity of the proposed wind farm.<br />

8.3.8 With respect to setting appropriate limits against which to assess the predicted operational<br />

noise levels, WLC indicated that the lower fixed portion of the quiet daytime limit should be as<br />

close to 35dB(A) as possible or else measured background +5dB(A), whichever is the greater<br />

as recommended in ETSU-R-97. For night time, the lower fixed limit should be 43dB(A), or<br />

else measured background +5dB(A), whichever is the greater. These limits should be applied<br />

both to the scheme and cumulative assessments.<br />

8.3.9 It was further agreed that the assessment would consider a candidate turbine which would<br />

reflect the worst possible case within the parameters of turbine hub height and power<br />

generation. For the purposes of this assessment, both the Vestas V-90 3MW and Nordex<br />

N100 2.5MW were initially considered, both of hub height 80m. The final assessment is<br />

based on the Nordex N100 2.5MW as it has a higher proportion of low frequencies than the<br />

Vestas, which are less well absorbed by atmospheric conditions.<br />

Baseline Conditions<br />

8.3.10 The 6 turbines comprising the proposed wind farm are to be located in <strong>Camilty</strong> Plantation<br />

which lies approximately 2 km to the south of the settlement of Harburn. The land is managed<br />

by the Forestry Commission Scotland and there are scattered dwellings around the perimeter<br />

of the proposed development site.<br />

8.3.11 A large portion of land to the north-east of the proposed development area <strong>for</strong>ms Harburn<br />

Estate which is used <strong>for</strong> various events and leisure activities. There is a cluster of dwellings<br />

including High <strong>Camilty</strong> and <strong>Camilty</strong> Lodge immediately to the north adjacent to the boundary<br />

with Harburn Estate. Parkview Cottages lies immediately to the west of these dwellings. The<br />

B7008 transects the site from east to south west and there are 2 dwellings (Halfwayhouse<br />

and Brookbank) which are adjacent to the road to the east of the proposed wind farm<br />

development area. To the south, there is another cluster of dwellings including Aberlyn,<br />

Crosswood and Crosswoodburn. There are no dwellings to the west within 1.5 km.<br />

Harburnhead, a dwelling and associated stables lies to the north west adjacent to the<br />

boundary with Harburn Estate.<br />

8.3.12 West Colzium to the south east was found to be derelict and has not been considered in this<br />

assessment.<br />

March 2013 8-5 ES Chapter 8<br />

Noise<br />

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

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