Galloper Wind Farm Project - National Infrastructure Planning

2842_LVIA
57
September 2011
GALLOPER WIND FARM SUBSTATION
7.0 ZTV Study
7.1.1. Figures 06 and 07 show areas from where different parts of the
proposed development might potentially be visible at Years 1 and 15.
The proposed substation site area is a footprint within which
different elements of the substation will be located. The design and
arrangement of these elements has not been determined at this stage,
so the ZTV plan is based on maximum potential heights of elements
within different parts of the site, in accordance with the parameters
shown on Drawing GWF_583_R1 Rev 1 (included in the Landscape
Mitigation Statement in Appendix 4). Buildings and equipment will
not be of a uniform height throughout each area but pieces of
equipment/buildings may be up to the heights shown. Much of the
equipment will be lower than these heights. The tallest building will
be in the Galloper compound which will be up to 14m high above
ground level (23mAOD). It will be necessary to include a number of
lightning rods within the development on buildings and other
structures but these will have a height of up to 3m above these
elements and a diameter of up to 50mm. Due to their small diameter,
they will only be visible from close proximity and have, therefore, not
been included in the ZTV studies.
7.1.2. Figures 06 and 07 also show the potential visibility of the cable
sealing compounds and gantries east of the site (in orange). The
design of these has also not been determined as this stage but the ZTV
has been run at their anticipated maximum potential height of 13min
accordance with the levels given in paragraph 1.3.2.
7.1.3. The ZTV model has allowed for the removal of existing woodland
within and to the east of the site which will open up visibility to the
east.
7.1.4. As illustrated on Figures 06 and 07, theoretical visibility towards the
proposed substation development is most prevalent within a 1km
radius of the substation site within a quadrant from east to northwest,
rotating in a clockwise direction. There are also reasonably extensive