11/00713/F - Borough Council of King's Lynn & West Norfolk

hardstanding areas at the turbine locations for the crane booms to be assembled; the turbine
rotors and for turbine parts to be laid down prior to erection, land intake is dependant on
layout. An area of hardstanding maybe required during the construction phase for laying
turbine components down (approximately 50m x 50m). Three turning heads would be
constructed for the duration of the construction period and then reinstated.
The final turbine type has not been chosen (tower and rotor dimensions vary little between
manufacturers) and the colour could be secured by condition. RES requested that 50m
micro-siting for turbines and associates infrastructure. Although RES has now indicated that
they would be prepared to accept a condition that allowed micro-siting of 30m for turbines
and other infrastructure, and that micro-siting of greater than 30m but less than 50m would
only be allowed with prior written approval of the LPA. This would allow for possible
variations in ground conditions across the site which is not known at this stage. The ES
assess that access tracks and crane hardstandings are able to be micro-sited to fit with the
turbines and to avoid sensitive sub-surface features.
It is confirmed that turbines begin generating automatically at a wind speed of around 3-4
metres per second and have a shut down wind speed of around 25 metres per second. It is
estimated that turbines would be shut down owing to high winds speeds for one hour per
year.
The point of connection into the grid system is proposed to be east of the site by the minor
road at East Common. Connection would be by underground cabling. The precise route will
be subject to a separate application by the district network operator (EDF) under the
Electricity Act 1989.
The sub-station compound would contain power quality improvement equipment, up to two
auxiliary transformers, and possibly a spare turbine transformer. The control building
required at the sub-station would accommodate metering equipment, switchgear, the central
computer system and electrical control panels. In addition there would be facilities for
maintenance personnel. A 10m high free-standing communications mast would be located
within the substation compound. A wind monitoring mast is also proposed for ongoing wind
speed monitoring and assessment up to 80m in height.
PLANNING HISTORY
07/00725/F to allow the continued standing of 70 metre temporary anemometer mast for a
further 12 months. Withdrawn prior to determination.
07/00725/F Continued standing of 70 metre temporary anemometer mast for a period of 18
months (renewal). Permitted 07/96/07 (Delegated)
05/01692/F Erection of 70m temporary mast. Permitted 18/10/05 (Delegated)
2/03/2300/F Erection of temporary 70 metre high telecommunications mast. Permitted
19/02/04 (Delegated)
Adjacent relevant applications
10/00883/FM - A wind energy development comprising the erection and 25 year operation of
five wind turbines with a maximum blade height of 100m and up to 50m -micrositing,
together with ancillary infrastructure including on-site access tracks, hard standing areas,
control buildings and cabling and a permanent anemometer mast at Land Between
10/01419/FM Development Control Board
25 July 2011
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