2460410: • the replacement (“restringing”) of the existing overhead line circuit conductor wires with a new higher capacity conductor • the strengthening of foundations at 7no. locations • shear block remedial works at 77no. locations • the strengthening of towers (i.e., member replacement) at 34no. locations • the replacement of 5.1km of earthwire • the painting of all structures • the replacement of insulating and ancillary hardware at structures • all associated works within the existing Kellis 220kV substation to accommodate the uprated 220kV OHL including uprating of the Great Island bay in Kellis 220kV substation • the installation of a temporary link between the Great Island – Kellis and Dunstown = Kellis 220kV OHLs to create a temporary circuit, which will include the erection of a temporary four-pole timber structure between the existing Angle Mast 191 on the Great Island- Kellis circuit and the existing Angle Mast 157 on the Dunstown – Kellis circuit • all associated temporary site development works to gain access to the existing structures including vegetation clearance and management, disassembly and reassembly of gate posts/piers and removal and reinstatement of existing fencing, and • other temporary associated and ancillary site development works required for the purpose of the uprate of the existing circuit, including construction compounds, silt traps, silt fences, vegetation clearance and management, stone tracks, ground protection mats, infrastructure crossing support systems (i.e., guard poles) and temporary watercourse crossings. Where required, an aerial catenary stringing system (ACSS) will be used to facilitate stringing operations over major obstacles, e.g., busy national roads, wide rivers, etc. A Natura Impact Statement will be submitted to the Planning Authority with the application. Please see Site Notice for full development description

Refusal reasons

Conditions

• 1Development to be carried out in accordance with approved plans (16/12/2024) and further information (14/04/2025).Compliance
• 2Permission limited to development described in public notices and approved plans.Compliance
• 3Implement all recommendations and mitigation from the Natura Impact Statement (16/12/2024) and Planning & Environmental Considerations Report (16/12/2024, amended 14/04/2025) in full.Environment Ecology
• 4Implement all archaeology/cultural heritage mitigation from Appendix E of the Planning & Environmental Considerations Report (14/04/2025). CEMP must detail archaeological constraints, impacts, and mitigation.Archaeology Heritage
• 5Comply with EPA 'Best Practice Guidelines for the Preparation of Resource & Waste Management Plans for Construction and Demolition Projects'.Construction Management
• 6(a) Do not impair existing land/roadside drainage. (b) No surface water to public road or adjoining properties. (c) Collect/dispose surface water to soakways/system per BS 8301:1985 and BRE Digest 365 with inspection manholes.Wastewater Drainage
• 7(a) Appoint Project Archaeologist for design through completion. (b) Liaise with NMS/Planning Authority on strategy. (c) Demarcate Exclusion Zones around Heritage Assets per Appendix E. (d) Use protective measures like ground protection matting.Archaeology Heritage
• 8(a) Engage licensed archaeologist to monitor clearance, stripping, groundworks, and preservation. (b) Use appropriate machinery. (c) Cease works if remains identified pending authority/NMS decision. (d) Facilitate recording and comply with further mitigation.Archaeology Heritage
• 9Submit final archaeological report detailing monitoring, investigative work, and post-excavation analysis to Planning Authority and NMS. Developer bears all costs.Archaeology Heritage
• 10(a) Obtain Road Opening Licence prior to public road/footpath works. (b) Liaise with Municipal District Office for temporary traffic management. (c) No spoil/debris on public road. (d) No damage to roadway/footpath; reinstate if damaged at developer's cost. (e) No staff/construction vehicle parking on public road.Traffic Access
• 11Submit Pavement Surface Condition Index (PSCI) rating for all haul routes pre- and post-construction. Developer bears cost of any required strengthening/resurfacing.Traffic Access
• 12(a) Submit Traffic Management Plan pre-commencement. (b) Provide direct contact for construction traffic management and public complaints to satisfaction of Roads Authority. Plan must comply with Traffic Signs Manual, Chapter 8.Traffic Access