Galloper Wind Farm Project - National Infrastructure Planning

2842_LVIA
September 2011
GALLOPER WIND FARM SUBSTATION
thus gives an indication of the likelihood of unacceptable effects on
those receptors.
17.1.16. A description of how sensitivity is assessed for each receptor type is
included below. It is usually rated on the following scale (though the
wording may be altered at the request of the EIA coordinator):
� High – material effects are likely to arise from a development of
this nature.
� Medium – material effects may arise from a development of this
nature.
� Low - material effects are unlikely to arise from a development of
this nature.
17.1.17. Magnitude of effect is assessed for all receptors and identifies the
degree of change. It is rated on the following scale:
� High – total or major alteration to key elements, features or
characteristics, such that post development the baseline situation
will be fundamentally changed.
� Medium - partial alteration to key elements, features or
characteristics, such that post development the baseline situation
will be noticeably changed.
� Low - minor alteration to key elements, features or
characteristics, such that post development the baseline situation
will be largely unchanged despite discernible differences.
� Negligible – very minor alteration to key elements, features or
characteristics, such that post development the baseline situation
will be fundamentally unchanged with barely perceptible
differences.
17.1.18. Whilst the duration of effects is also a consideration, the normal
lifespan of a wind farm (and therefore its substation), though
temporary, is a period of 25 years. This is a considerable length of time
and so is not taken into account in determining magnitude. The