Route Corridor Selection Study Report Beauly
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Route Corridor Selection Study Report Beauly – Blackhillock Reinforcement and Blackhillock – Kintore Reinforcement November 2016 CONTENTS GLOSSARY I EXECUTIVE SUMMARY I 1. INTRODUCTION 1 1.1 Project Background 1 1.2 Project Scope 1 1.3 Objectives 2 1.4 Structure of the Report 2 2. METHODOLOGY 4 2.1 Overview 4 2.2 Stage 1: Route Corridor Identification 5 2.3 Stage 2: Route Corridor Analysis 9 2.4 Stage 3: Consultation and Refinement of Preferred Route Corridor 10 2.5 Stage 4: Confirmation of Proposed Route Corridor 12 3. ENVIRONMENAL BASELINE CONDITIONS 13 3.1 Introduction 13 3.2 Section 1: Inverness South 13 3.3 Section 2: Nairn and Forres South 14 3.4 Section 3: Elgin South 16 3.5 Section 4: Huntly South West 17 3.6 Section 5: Kintore North 18 4. STAGE 1: ROUTE CORRIDOR IDENTIFICATION 20 4.1 Introduction 20 4.2 Northern Route Corridor 20 4.3 Central Route Corridor 21 4.4 Southern Route Corridor 21 5. STAGE 2: COMPARATIVE ANALYSIS OF ROUTE CORRIDORS 22 5.1 Introduction 22 5.2 Step 1: Comparison of Northern, Central and Southern Route Corridors 22 5.3 Step 2: Analysis of Route Corridors and Identification of Preferences 26 5.4 Step 3: Analysis of Preferred Route Corridor for Consultation and Identification of Key Issues for Detailed Routeing 32 6. STAGE 3: CONSULTATION AND REFINEMENT 34 6.1 Introduction 34 6.2 Consultation with the Statutory Stakeholder Forum 34 6.3 Community Consultation 37 7. STAGE 4: PROPOSED ROUTE CORRIDOR AND SUMMARY OF SENSITIVITIES 39 7.1 Proposed Route Corridor 39 7.2 Key Sensitivities Identified 39 7.3 Next Steps 39 Beauly – Blackhillock Reinforcement and Blackhillock – Kintore Reinforcement Route Corridor Selection Study Report ANNEXES Annex A: Figures Annex B: Environmental Constraint Sensitivity Annex C: Potential Transmission Infrastructure Rationalisation and Efficiency Opportunities Annex D: Assessment of Landscape Character Types Annex E: Review of Local Landscape Designations Annex F: Notes on Northern, Central and Southern Route Corridor Boundaries Annex G: Statutory Stakeholder Forum Meeting Minutes Annex H: Statutory Stakeholder Information Pack Beauly – Blackhillock Reinforcement and Blackhillock – Kintore Reinforcement Route Corridor Selection Study Report GLOSSARY 275 kV 275 kilovolt (275,000 volt) operating voltage electrical circuit 400 kV 400 kilovolt (400,000 volt) operating voltage of an electrical circuit AGLV Area of Great Landscape Value - areas identified by The Moray Council by virtue either as being large scale areas of regional importance for scenic quality, or as being small scale areas of local scenic and recreational value. They are afforded protection under Policy E7 of the Moray Local Plan 2008, and the proposed Moray Local Development Plan. AOD Above Ordnance Datum BGS British Geological Survey CAWL Core Areas of Wild Land – extensive areas of high wildness as defined by Scottish Natural Heritage. EIA Environmental Impact Assessment. A formal process set down in The Electricity Works (EIA) (Scotland) Regulations 2000 (as amended in 2008) used to systematically identify, predict and assess the likely significant environmental impacts of a proposed project or development. GDL Garden and Designed Landscape, as listed on the Inventory of Gardens and Designed Landscapes held by Historic Environment Scotland GSP Grid Supply Point GWDTE Groundwater Dependent Terrestrial Ecosystem HES Historic Environment Scotland Holford Rules A set of 7 rules, first developed in 1959 by Sir William Holford, which define the principles of route selection and which continue to inform transmission line routing in the UK IBA Important Bird Areas are designated by Birdlife as places of international significance for the conservation of birds and other biodiversity1. They are a non-statutory, international designation. LCT Landscape Character Type OHL Overhead line Planning application An application for planning permission under the Town and Country Planning (Scotland) Act 1997, as amended by the Planning etc. (Scotland) Act 2006. It should be noted that consent under section 37 of the Electricity Act 1989 usually carries with it deemed planning permission from the Scottish Ministers under Section 57 of the Town and Country Planning (Scotland) Act 1997. Preferred route corridor The route corridor option which is considered to represent the optimum balance between the various environmental considerations 1 www.birdlife.org Beauly – Blackhillock Reinforcement and Blackhillock – Kintore Reinforcement Route Corridor Selection Study Report Proposed route corridor The final route corridor within which alternative OHL route alignments will be defined and appraised. Route corridor A refined area of search within the larger Study Area, through which a new transmission line could be located Section 37 (s37) application An application for development consent under section 37 of the Electricity Act 1989 SAC Special Area of Conservation - designated under Directive 92/43/EEC on the Conservation of Natural Habitats and of Wild Fauna and Flora (known as - The Habitats Directive) SEPA Scottish Environment Protection Agency SHE Transmission Scottish Hydro Electric Transmission plc SLA Special Landscape Area - areas identified by The Highland Council by virtue either as being large scale areas of regional importance for scenic quality, or as being small scale areas of local scenic and recreational value. They are afforded protection under Policy 61 of the Highland Wide Local Development Plan (Adopted 2012). SNH Scottish Natural Heritage SPA Special Protection Area – designated under Directive 2009/147/EC on the Conservation of Wild Birds (the Birds Directive) SSSI Site of Special Scientific Interest – designated by SNH under the Nature Conservation (Scotland) Act 2004 Study Area The widest area of land between the existing Beauly, Blackhillock and Kintore substations, within which the route corridor options are located. THC The Highland Council TMC The Moray Council WLA Wild Land Area, as classified by SNH (2014) ZTV Zone of Theoretical Visibility - the theoretical visibility of an object in the landscape Beauly – Blackhillock Reinforcement and Blackhillock – Kintore Reinforcement Route Corridor Selection Study Report EXECUTIVE SUMMARY Scottish Hydro Electric Transmission plc (‘SHE Transmission’) has identified a need to reinforce the electricity transmission system between the existing Beauly and Blackhillock substations and between the existing Blackhillock and Kintore substations (‘the Projects’). The Projects comprise national infrastructure. The need has arisen due to the significant growth in renewable energy generation in the north of Scotland. The forecast for renewable energy generation growth in the area is informed by generation with signed contracts for connection to the grid and the Future Energy Scenarios (FES) provided by the National Electricity Transmission System Operator (NETSO), NGET (National Grid Electricity Transmission). The existing SHE Transmission grid system network is divided by main system boundaries and the objective of the proposed reinforcements between Beauly, Blackhillock and Kintore is to increase the transfer capacity across the B1 boundary, which divides the network at Blackhillock substation. This route corridor selection study has been prepared on behalf of SHE Transmission and reports on the process of environmental analysis carried out to inform the selection of a proposed route corridor for a new 400 kV overhead line (OHL) between the Beauly, Blackhillock and Kintore substations. The objectives of this route corridor selection study are: • to identify potentially viable route corridors between the defined connection points that are 'technically feasible and economically viable' and 'which cause the least disturbance to the environment and to the people who live, work, visit and recreate within it', and to spatially define this corridor/or corridors; • to identify a preferred route corridor, based on consideration of relative environmental sensitivities; • to undertake consultation on the preferred route corridor, on the basis of the analysis presented in this report, and identify a proposed route corridor to be taken forward to detailed route selection; and • to identify key environmental issues associated with the proposed route corridor, which will inform the scope of environmental surveys to be completed to inform route selection within the proposed route corridor. A study area was identified to incorporate the maximum area under consideration for the Projects. This covered geographic locations which allowed a connection between the three identified substations. The boundaries of the study area are defined as follows: • The northern boundary is formed by the Moray Firth coastline, from Beauly as far east as Port Gordon, to the north of Blackhillock substation, as well as an area to the east of Huntly; • The eastern boundary is located approximately 10 km east of a direct line between Blackhillock and Kintore substations, in order to allow full consideration of this area; • The southern boundary is formed by the boundary of the Cairngorms National Park, as well as the location of site options for a new substation at Tomatin; • The western boundary is formed by the existing Beauly substation and Loch Ness, as well as the area along the western side of Loch Ness. The environmental analysis was undertaken in four stages. Stage 1 involved environmental baseline data gathering to identify existing environmental features and sensitivities across the study area, which