Site planning risk brief

The development of a Data Centre Facility and Decentralised Energy Resource within an overall development boundary area of 243 hectares comprising: • 1 No. Security control building (floor area 23.5m2). • 6 No. new data buildings including administration blocks (each 228m x 62m x 18m high), 6 No. MV switch room buildings, within a secure campus having an area of 39 hectares, 1 No. fire water tank (Volume: 2000m3), pump house and proprietary modular water treatment plant. • 6 No. fuel cell towers (each 89m x 29m x 20m high), 2 No. chilled water tanks (Volume: 1000m3 each), pump house, ancillary water tank (Volume: 2000m3), carbon dioxide process building (30.7m x 15.7m x 11.3m high) and 16 No. carbon dioxide storage tanks (100 tonnes each). • Ancillary equipment compound including a storage building (30.7m x 10.7m x 9.7m high), 2 No. diesel generators, fire water tank (Volume: 2000m3) and pump house and proprietary modular water treatment plant. • Above ground gas installation (AGI) compound including a boiler/instrument kiosk, regulator/metal skid kiosk and connection to the existing gas network within the site. • 33kV IPP building (60.9m x 18.4m x 16.8m high), 1 No. telecoms tower 36m high and compound. • Fuel cell IPP building (40m x 9.8m x 7.1m high) and compound. • Solar farm IPP building (30m x 9.8m x 7.1m high) and compound. • Battery compound including 138 No. battery enclosures & 138 No. medium voltage power stations (MVPS), IPP building (40m x 9.8m x 7.1m high) and fire water tank (Volume: 500m3). • Proprietary modular water treatment plant serving the solar farm IPP building and battery compound IPP building. • Solar farm (168 hectares) to the east of the data campus facility including solar arrays measuring (10.2m x 6.9m), (20.4m x 6.9m) & (30.6 x 6.9m), 45 No. medium voltage power stations (MVPS), 5 No. weather stations, river crossings, internal gravel access roads, security fencing and gates, 3 No. temporary construction compounds, cable crossings in the R446, L11272 & L51251 public roads, and cable crossing under the M6 using horizontal directional drilling. • Connection to public sewer under the R446 public road. • New emergency only access/egress from the R446 public road. • Access/egress to the data centre campus facility through the existing Castlelost Flexgen and GIS substation access to the R446. • Demolition of the existing derelict dwelling and agricultural sheds. • All associated site works including

The Energy Storage System (ESS) development will comprise: (i) an open area battery energy storage system (BESS) compound(area of 26,317sqm) containing 264no battery modules and associated medium voltage power station (MVPS) enclosures (12.192m long x 2.438m wide x 3.896m high), (ii) IPP building (40n long x 10m wide x 6.853m high), (iii) synchronous condenser compound (area of 9,309sqm) containing a horizontal synchronous generator positioned within a building (30.0m long x 18.0m wide x 12.15m high), 5no control modules each (12.192m long x 2.438m wide x 3.332m high), associated bunded transformers and electrical plant, (iv) high voltage (HV) customer compound containing 1no. bunded transformers (9m high) and electrical plant to provide for connection to the electricity transmission system, and (v) all ancillary development, including lightening mast protection, perimeter fencing with access gates, landscaping, lighting, car parking, internal access roads and all civil engineering works for the disposal of foul and surface water. The development includes for construction of a new entrance and access road to the facility from the R446 with associated signage from the new entrance to the ESS facility. Permission is sought for 10 years. An EIAR has been prepared and accompanies this planning application

The development comprises 275MWe reserve gas-fired generator to boost and back up the power system and will include the following elements (a) 5no. open cycle gas turbine (OCGT) modules (each module being c 1042sqm) and complete with lube oil coolers, generators, air intake vents, continuous emissions monitoring (CEMS) technology, selective catalytic reduction (SCR) units and c.30m high stacks, (b) 1no two-storey administration building (32.615m long x 13m wide x 9.33m high) which contains a control room, offices, storage meeting room workshop and double height warehouse (c) 2no. 2,400m3 capacity bunded secondary fuel storage tanks (each with a diameter of 17.6m and height of 10m), (d) a fenced above ground installation (AGI) compound containing gas pipework, a regulator house enclosure, instrument kiosk, boiler house enclosure and analyzer kiosk, (e) 1no. fuel pump and filter unit, (f) 1no. containerised water treatment module (12.192m long x 2.438m wide x 2.896m high), (g) 1no. 10m3 purified water storage tank (2.75mm high and 2.27m diameter), (h) 2no. containerised black start diesel generators (2.438m x 12.192m long x 2.896m high) with integrated stacks(4.755m high), (i) 1 no 50m3 ammonia storage tank (9.360m high and 3.16m diameter, (j) fire pump skid building (9.23m long x 6.98m wide x 4.6m high), (k) 1 no. 500m3 capacity water tank (7.597m high x 10m diameter, (l) 1 no. single storey IPP building (20m long x 10m wide and 6.853m high, (m) 1 no. low voltage (LV) bunded house transformer (1.914m high), (n) 5 no. medium voltage (MV) bunded step-up transformers (6.287 m high) 1no. high voltage (HV) customer compound containing 2no. bunded transformers (9m high) connected to electrical equipment, (o) 1no air compressor building (8.33m long x 4.73m wide x 4.517m high) and (p) all ancillary development including new access road, internal roads, 2.65m high fencing and gates securing the main reserve generator site, and associated engineering works to provide for the connection of site services and for the treatment and disposal of foul wastewater and surface water. The development includes for construction of a new entrance to the site from the R446 with associated signage and an access road from the new entrance to the reserve gas-fired generator. The development also includes for the demolition and removal of a farm shed, farm workshop, feed silo and a silage clamp, permission for a period of 10 years EIAR and Industrial Emissions licence included.

Development which will consist of (i) the construction of a new Administration/Control Building at a new location within the site in lieu of the IPP Building granted under planning Ref. No. 21/515, (ii) the construction of a new Workshop Building at a new location within the site in lieu of the Administration/Workshop Building granted under Planning Ref. No. 21/515, and (iii) associated minor changes to internal roads, civil engineering, drainage, landscaping, lighting, car parking, and site works. The development alterations are with respect to Planning Ref No. 21/515, which is a development that is for the purpose of an activity requiring an Industrial Emissions Licence from the Environmental Protection Agency (EPA)

Development which will consist of alterations to the development consented under Westmeath Planning Case Ref. 21/515 (parent permission) and are as follows: (i) reconfiguration of structures and pipework within the above ground installation (AGI) compound, (ii) increase the size of gas oil (secondary fuel) storage tanks and bund and realignment of tanks within the bund, (iii) remove one consented emergency diesel generator from the development layout and reposition of the second consented emergency diesel generator alongside an LV switchroom, (iv) reposition palisade fence associated with ancillary equipment compound approximately 15m to the west, (v) reconfigure and reposition fuel pumps (polishing and forwarding), MCC equipment, fire water pump, fire water tank and air compressor adjacent to the southern side of the secondary fuel storage bund, (vi) remove water treatment module and ammonia storage tank from the development layout, (vii) remove two distribution transformers from the development layout and reposition the remaining three consented distribution transformers to the ancillary equipment compound to the west, (viii) remove five gas turbine selective catalytic reduction (SCR) units and associated ancillary components (fans), (ix) reposition of two high voltage (HV) transformers within the HV transformer compound and installation of a third HV transformer in lieu of the HV transformer consented under Planning Permission Ref. 21/532, and (x) associated minor changes to internal roads, civil engineering, drainage, landscaping, lighting, car parking, and site works. The development alterations relate to Westmeath Planning Case Ref. 21/515, which is a development that is for an activity requiring an Industrial Emissions Licence from the Environmental Protection Agency (EPA)

Retention of existing extension to the front and rear to include on ground floor, kitchen, dining, living area, utility, hot press, boiler, bathroom, bedroom with wardrobe and stairs and on the first floor two bedrooms, bathroom, landing and storage area with 4 velux windows and two chimneys with all ancillary site works