The development will consist of: 1. Installation of outdoor Air Insulated Switchgear (AIS) electrical apparatus, including an associated extension to the hardstand compound (approximately 4 hectares) to facilitate same. This includes: a. installation of an extension to both sides of the existing 400 kV busbar, with provision of an associated wing coupler at either end of the existing 400 kV busbar.
b. additional apparatus and associated works to the two existing busbars to create what is known as sectionalising bays. c. relocation of existing transformer connections from existing busbar to adjacent location on new busbar. d. an associated single-story extension (approximately 80 m2) to the existing control building. 2. The erection of four new lightning masts and relocation of one existing mast (each approximately 45m high). 3. Two bays on opposite sides to the newly extended 400 kV busbars at the southern end of the substation, each bay to incorporate breakers, reactive compensation devices and cable sealing ends. These bays will facilitate the connection of the new 400 kV underground cable links from Dunstown and Belcamp substations respectively. 4. Renewal, alteration and/or removal of associated 400 / 220 kV electrical apparatus and equipment. 5. All ancillary site development works including site preparation works, site clearance
and levelling; provision of hardstanding, internal access tracks and temporary construction compound; associated underground cabling and earthgrid; associated extended surface water drainage network including a soakaway; associated palisade fencing and gates (approximately 2.65m high); lighting poles and landscaping as required to facilitate the development. Planning Permission is sought for a period of 10 years. Significant further information/revised plans submitted on this application
