Camilty Wind Farm - Partnerships for Renewables

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

07.02.2014 Views

Camilty Wind Farm 3.5.25 The two turbines located to the west of the B7008 were considered to be viewed as a separate grouping from the A70 – particularly from the property “Crosswoodburn” south of the proposed wind farm, and also from some elevated viewpoints in the Pentland Hills. This was considered to give the development a disunified appearance (as discussed in Chapter 9: Landscape and Visual). 3.5.26 Removal of these turbines resulted in a 6 turbine scheme which appeared more compact and coherent from the design viewpoints and wider visibility. The layout also minimised overlapping turbines, and created an appearance of more equal turbine spacing from a greater number of viewpoints. 3.5.27 Removal of the remaining turbines west of the B7008 also distanced the development away from Craigengar SSSI to the south west of the site, and allowed a greater degree of separation from the consented wind farms in the vicinity of the site. 3.5.28 The remaining 6 turbines were reassessed within the developable area from the design viewpoints, and Camilty Hill SAM. 3.5.29 The views from the SAM were considered to be acceptable as the final scheme ensured that the majority of turbines were hidden behind trees (which it is proposed to retain as part of FCS’s Forest Design Plan) and turbines which were visible were reduced in scale due to their distance from the monument. This is discussed in Chapter 10 : Archaeology and Cultural Heritage. 3.5.30 Further considerations on the final 6 turbines included: • Site Infrastructure – Maximising the use of existing tracks within the site boundary and minimising new watercourse crossings (refer to Chapter 13: Hydrology, Hydrogeology and Ground Conditions). In addition, turbines were sited to avoid steep terrain as far as possible to minimise constraints to access track construction, and minimise the need for extensive design solutions. • Forestry – FCS preferred turbine locations were considered in line with the emerging amendment to the FDP. This process enabled the creation of a layout sensitive to the requirements of ongoing forestry operations and responding to the FDP in relation to minimising unnecessary removal of coupes or compromising the wind firmness of remaining forest blocks. • A shadow flicker plan was prepared to ensure no inhabited properties fell within the zone of potential shadow flicker (refer to Chapter 14: Shadow Flicker). • The MOD, CAA and fixed link providers were re-consulted on the Final Design layout and confirmed no objection. Infrastructure Design 3.5.31 Following definition and acceptance of the Final Design in terms of turbine layout, the infrastructure design was developed. Infrastructure features were similarly sited and routed to avoid environmental constraints as well as optimising the use of slope for constructability and safety of construction traffic within the site. 3.5.32 Access to the site was informed by a number of factors including sufficient turning radii and utilisation of existing tracks. In designing the access tracks the following objectives were taken into account: March 2013 3-13 ES Chapter 3 Design Evolution Copyright Partnerships for Renewables Development Co. Ltd 2013 ©

Camilty Wind Farm • Minimising the number of watercourse crossings required; • Avoiding environmental constraints identified during the early design and eia process; • Maximising the use of existing access tracks; • Minimising ground disturbance by using the shortest route possible; and • Ensuring gradients are suitable for vehicular access. 3.5.33 The route and alignment of the new access tracks took land stability and topography into account. 3.5.34 A buffer was also put in place around all infrastructure, including the provision of turbine keyholes of 86 m, to indicate removal of forestry required specifically for the wind farm. This buffer reflects the requirements of the Natural England Guidance (Natural England, 2009) for protection of bats, which requires an offset of 50 m between the forest edge and the blade tip. This assumed a turbine with an 80 m hub and 52 m blade, and standoff from a 25 m tree. This is explained in Appendix 11.5 in the Terrestrial Ecology chapter. 3.5.35 This Final Design (including infrastructure) was confirmed as the basis of the application and EIA and the design frozen accordingly. The design was then provided to FCS and the proposed amendment to the FDP was updated to align with the layout. 3.6 References • David Tyldesley and Associates (2011) Consultative Draft Landscape Capacity Study for Wind Energy Development in West Lothian, Final December 2011, [online[. Available at: http://www.westlothian.gov.uk/media/downloaddoc/1799514/1841832/1875738/23305 56/LCS_windenergyinWL • Natural England (2009). Natural England Technical Information Note TIN051. Bats and Onshore Wind Turbines Interim Guidance • ODPM (2011). Town and Country Planning (Environmental Impact Assessment) (Scotland) Regulations 2011 • ODPM (2011). The Water Environment (Controlled Activities) (Scotland) Regulations 2011Available at: http://www.legislation.gov.uk/ssi/2011/209/contents/made • Scottish Environment Protection Agency (2008). Engineering in the Water Environment Good Practice Guide Construction of Rover Crossings First Edition • Scottish Government (2010). Scottish Planning Policy. Available at http://www.scotland.gov.uk/Resource/Doc/300760/0093908.pdf • Scottish Government (2011). On-line Renewables Advice. Available at http://www.scotland.gov.uk/Topics/Built-Environment/planning/National-Planning- Policy/themes/renewables • Scottish Natural Heritage (2009), Siting and Designing Windfarms in the Landscape. Available at: http://www.snh.gov.uk/docs/A317537.pdf • West Lothian Council (2009) West Lothian Local Plan, [online]. http://www.westlothian.gov.uk/media/downloaddoc/1799514/1849418/2083838/adopt edwllp March 2013 3-14 ES Chapter 3 Design Evolution Copyright Partnerships for Renewables Development Co. Ltd 2013 ©

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

3.5.25 The two turbines located to the west of the B7008 were considered to be viewed as a<br />

separate grouping from the A70 – particularly from the property “Crosswoodburn” south of the<br />

proposed wind farm, and also from some elevated viewpoints in the Pentland Hills. This was<br />

considered to give the development a disunified appearance (as discussed in Chapter 9:<br />

Landscape and Visual).<br />

3.5.26 Removal of these turbines resulted in a 6 turbine scheme which appeared more compact and<br />

coherent from the design viewpoints and wider visibility. The layout also minimised<br />

overlapping turbines, and created an appearance of more equal turbine spacing from a<br />

greater number of viewpoints.<br />

3.5.27 Removal of the remaining turbines west of the B7008 also distanced the development away<br />

from Craigengar SSSI to the south west of the site, and allowed a greater degree of<br />

separation from the consented wind farms in the vicinity of the site.<br />

3.5.28 The remaining 6 turbines were reassessed within the developable area from the design<br />

viewpoints, and <strong>Camilty</strong> Hill SAM.<br />

3.5.29 The views from the SAM were considered to be acceptable as the final scheme ensured that<br />

the majority of turbines were hidden behind trees (which it is proposed to retain as part of<br />

FCS’s Forest Design Plan) and turbines which were visible were reduced in scale due to their<br />

distance from the monument. This is discussed in Chapter 10 : Archaeology and Cultural<br />

Heritage.<br />

3.5.30 Further considerations on the final 6 turbines included:<br />

• Site Infrastructure – Maximising the use of existing tracks within the site boundary and<br />

minimising new watercourse crossings (refer to Chapter 13: Hydrology, Hydrogeology<br />

and Ground Conditions). In addition, turbines were sited to avoid steep terrain as far<br />

as possible to minimise constraints to access track construction, and minimise the<br />

need <strong>for</strong> extensive design solutions.<br />

• Forestry – FCS preferred turbine locations were considered in line with the emerging<br />

amendment to the FDP. This process enabled the creation of a layout sensitive to the<br />

requirements of ongoing <strong>for</strong>estry operations and responding to the FDP in relation to<br />

minimising unnecessary removal of coupes or compromising the wind firmness of<br />

remaining <strong>for</strong>est blocks.<br />

• A shadow flicker plan was prepared to ensure no inhabited properties fell within the<br />

zone of potential shadow flicker (refer to Chapter 14: Shadow Flicker).<br />

• The MOD, CAA and fixed link providers were re-consulted on the Final Design layout<br />

and confirmed no objection.<br />

Infrastructure Design<br />

3.5.31 Following definition and acceptance of the Final Design in terms of turbine layout, the<br />

infrastructure design was developed. Infrastructure features were similarly sited and routed<br />

to avoid environmental constraints as well as optimising the use of slope <strong>for</strong> constructability<br />

and safety of construction traffic within the site.<br />

3.5.32 Access to the site was in<strong>for</strong>med by a number of factors including sufficient turning radii and<br />

utilisation of existing tracks. In designing the access tracks the following objectives were<br />

taken into account:<br />

March 2013 3-13 ES Chapter 3<br />

Design Evolution<br />

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

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