west islay tidal energy park environmental...
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West Islay Tidal Energy Park Environmental Statement
WEST ISLAY TIDAL ENERGY PARK
VOLUME 2 ENVIRONMENTAL STATEMENT
CONTENTS
SECTION 1: INTRODUCTION, POLICY, CONTEXT, EIA & DESCRIPTION
1. Introduction
2. Legislative & Policy Context
3. Site Selection Process and Alternatives Considered
4. The Environmental Impact Assessment, Environmental Statement & Consultation
5. Project Description
6. Physical Environment
SECTION 2: BIOLOGICAL ENVIRONMENT
7. Mammals
8. Benthic Ecology
9. Otters
10. Birds
11. Natural Fish
SECTION 3: HUMAN ENVIRONMENT
12. Commercial Fish
13. Archaeology
14. Shipping & Navigation
15. Landscape & Seascape Visual
16. Traffic & Transport
17. Recreation and Amenity
18. Socio-economic
19. Noise
20. EMF
SECTION 4: SUMMARY CONCLUSIONS, MITIGATION & MONITORING
21. Summary of Impacts, Mitigation and Monitoring
West Islay Tidal Energy Park Environmental Statement ________________________________________________________________
Preface 1 July 2013
Preface This Environmental Statement (ES) is prepared, by DP Marine Energy Ltd (DPME), in support of an application for statutory consents for West Islay Tidal Energy Park (the Project). The Project is being developed jointly by DPME and DEME Blue Energy (DBE) on the behalf of West Islay Tidal Energy Park Limited a special purpose Scottish Company which has been incorporated to build and operate the Project. The Project consists of the installation of 30MW of Tidal Energy Converters and associated infrastructure including the export cables to landfall on Islay The proposed array of tidal energy devices will be located approximately 6km (at its closest point) from the south west tip of the island of Islay in Argyll and Bute, Scotland. The proposed landfall for the associated electricity export cable will be located adjacent to Kintra Farm on the west coast of Islay. The Regulatory Authority responsible for assessing the application for consent is Marine Scotland. They will be supported in the assessment process by a number of environmental bodies including Scottish Natural Heritage (SNH). The Environmental Statement can be viewed during the statutory consultation period at the following locations: Islay Energy Trust, Custom House, Bowmore, Isle of Islay, PA43 7JJ Tel: 01496 810873
Portnahaven Post Office Portnahaven Isle of Islay PA47 7SH Tel: 01496 860264
Bowmore Post Office, Main Street, Bowmore, Isle of Islay, PA43 7JH Tel: 01496 810366
Port Ellen Post Office, 66 Fredrick Crescent Port Ellen, Isle of Islay, PA42 7BD Tel: 01496 30238
DP Marine Energy Ltd Mill House Buttevant County Cork Tel: +353 22 23955
Scottish Government Library, Victoria Quay, Edinburgh, EH6 6QQ
During the consultation period copies of the Environmental Statement can be purchased from DPME either on CD for a charge of £15 or in hard copy form for £400. Copies of the Non-Technical Summary are available free of charge and a downloadable version is also be available on the West Islay Tidal website: www.westislaytidal.com. Requests for CD and or hard copies of the ES can be made to the DPME address above or by email [email protected]
West Islay Tidal Energy Park Environmental Statement ________________________________________________________________
Preface 2 July 2013
Responsibility Job Title Name Date Signature
EIA Chapters
EIA Manager Clodagh McGrath
Monday, 22nd July 2013
Non EIA Chapters
Project Manager
Blair Marnie Monday, 22nd July 2013
Checked
Project Development Engineer
Damian Bettles
Monday, 22nd July 2013
Approved
Director (DPME)
Simon De Pietro
Monday, 22nd July 2013
Copyright: DPME © Document Reference:
West Islay Tidal Energy Park Environmental Statement
It should be noted that the NTS and ES has been prepared by DPME supported by DBE with significant input from external sub-consultants on specialist chapters. A review process for Quality Assurance was conducted on all chapters, whether produced by external consultants or internally by DPME. The ES has been prepared by DPME with all reasonable skill and care and whilst every effort has been made to ensure the accuracy of the material published in this and associated documents, West Islay Tidal Energy Park Ltd, DPME or DBE will not be liable for any inaccuracies. These documents remain the sole property of DPME. They are submitted to the Regulators and Local Authorities solely for their use in evaluating the Environmental Impact Assessment for the West Islay Tidal Energy Project. No part of this publication (hardcopy or CD-ROM) or any attachments, addenda and/or technical reports may be reproduced or copied in any form or by any means or otherwise disclosed to third parties without the express written permission of DPME, except that permission is hereby granted to the Regulators to evaluate this Environmental Statement in accordance with their normal procedures, which may necessitate the reproduction of this response to provide additional copies strictly for internal use. DPME would like to acknowledge the technical support provided by Siemens/MCT, Alstom/TGL and Bluewater/BlueTEC for their considerable assistance in enabling the design envelope to be defined. The licence numbers for proprietary data referenced in diagrams and maps can be found on individual figures. Copyright ©2013 DP Marine Energy Limited All rights reserved.
West Islay Tidal Energy Park Environmental Statement
- - i
Glossary of Terms: Agreement for Lease Agreement entered into between West Islay Tidal Ltd and The Crown Estate
for the rights to development on the seabed, named as West Islay Tidal, shown in Figure 5.1.
Dynamic positioning vessel
A Dynamic Positioning Vessel (DP) can safely maintain its position and heading in a tidal flow using a system of thrusters. DP vessels are able to work safely and efficiently in waters deeper than vessels using anchors.
Export cables Cables used to export power generated by the tidal turbines to the onshore infrastructure.
Gravity based structure (GBS)
A structure which uses ballast to sit securely on the seabed without needing to be stabilized by piles or anchors. The GBS is used to support a tidal turbine.
Monopile A single large diameter steel tube that is grouted into a hole bored into the seabed. The monopile is used to support a tidal turbine.
Nacelle The enclosure of the tidal turbine’s mechanical and electrical equipment. Pin pile The use of multiple small diameter steel tubes that are grouted into a hole bored
into the seabed. The pin piles are used to support a tidal turbine. Project For the purpose of this ES, the Project refers to the West Islay Tidal Energy Project. Remotely operated vehicle (ROV)
A Remotely Operated Vehicle (ROV) is an underwater vehicle able to undertake multiple subsea operations. ROVs are highly manoeuvrable and are controlled by operators on-board the DP vessel.
Tidal turbine A device that converts hydrodynamic energy in the tidal flow into electrical energy. Tidal turbine array Term used to describe a group of tidal turbines. Turbine support structure (TSS)
A turbine support structure is the structure placed on the seabed onto which a tidal turbine is installed.
Wet mate connector A device used to connect electrical and data cables underwater.
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Po
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Bio
logi
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val
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Pra
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Are
a
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Pri
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Ren
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West Islay Tidal Energy Park Environmental Statement
List of Tables: Number Title 1.1 Structure of Environmental Statement (Volume 2) 1.2 List of EIA Assessors 4.1 Project Design Criteria 4.2 Abridged Scoping Opinion 4.3 Responses to Cable Route Assessment Report 4.4 Key Stages of the EIA Process 4.5 Consequence of Impact 4.6 Definitions of Significance Rankings 4.7 Details of Projects Considered in Cumulative Impact Assessment 5.1 Co-ordinates of Proposed Development Area 5.2 Co-ordinates of Sub-sea Cable Route to Islay 5.3 Project Envelope Criteria 5.4 Depth and Spacing Parameters SeaGen S Mark 2 5.5 Depth and Spacing Parameters TGL 5.6 Foundation & Turbine Installation Vessel Options 6.1 Definition of the Shoreline Sensitivity to Erosion or Accretion 6.2 Definition of the Magnitude of Change 6.3 Criteria Matrix Used to Determine the Significance of Impacts from the
Turbine Array Area on the Physical Environment 6.4 Tidal Elevation (m) 6.5 Tidal Elevation (m) Extreme Water level Estimation at Tidal Site 6.6 Summary of Potential Impacts to the Shoreline Relating to Coastal
Processes 7.1 Summary of Legal Status of Species Occurring at the Project Site 7.2 Key Consultation Comments Relevant to Marine Mammals 7.3 Categories for Determining Sensitivity 7.4 Categories for Determining Magnitude 7.5 Matrix for Determining Consequence of Impact 7.6 Descriptions Used for Defining Overall Significance 7.7 Projects Relevant to Cumulative Impact Assessment for Marine Mammals 7.8 Project Parameters Relevant to Marine Mammals and Basking Sharks 7.9 A Summary of Species Considered Relevant for EIA, Based on Recorded
and Likely Occurrence at the Project 7.10 Species Considered in this EIA, According to Species Group 7.11 Summary of Potential Impacts to Marine Mammals and Basking Sharks 7.12 Zones of Influence of Noise on Marine Mammals (Richardson et al.,
1995). 7.13 Minimum Distance Between Potential Vessel Activities and the Nearest
Proposed Haul-out Sites within the West Highland Management Area 7.14 Summary of Estimated Annual Encounter Rates per Turbine Rotor for the
Most Commonly Encountered Marine Mammal Species at the Proposed Development Site
7.15 Estimated Annual Collision Levels for the Proposed Development, for Varying Assumed Avoidance Rates (see discussion for limitations in this
West Islay Tidal Energy Park Environmental Statement
Number Title method)
7.16 Projects Relevant to Cumulative Impact Assessment for Marine Mammals 7.17 Predicted collisions that are considered in consenting, relevant to PBR
thresholds (442 and 297 for harbour and grey seal, respectively). Note that these figures were not collected using a consistent methodology and so cannot be compared directly
7.18 Summary of Potential Impacts, Mitigation Measures and Overall Significance
8.1 Summary of stakeholder responses relevant to site benthic surveys. 8.2 Summary of previous studies & reviews in the vicinity of the proposed
Islay Tidal Energy Project. 8.3 Summary of site specific survey techniques employed 8.4 Criteria used for assigning magnitude scores to pressures. 8.5 Consequence of impacts 8.6 Rochdale envelope parameters defined for assessing impacts relating to
construction, operation and decommissioning of the tidal array and inter-array cables.
8.7 Biotopes assigned in and around the Tidal Site following analysis of the DDV images collected during subtidal survey work.
8.8 Receptor group found within the Site Survey Area of the Tidal Site 8.9 Summary of predicted pressures to be addressed in impact assessment
at the Tidal Site 8.10 Impact assessment summary of direct physical disturbance and
temporary substratum loss due to construction activities 8.11 Impact assessment summary of smothering (drill cutting release) 8.12 Impact assessment summary of introduction of MNNS 8.13 Impact assessment summary of long term substratum loss and
colonisation of introduced substratum 8.14 Impact assessment summary of decrease in water flow 8.15 Impact assessment summary of contamination 8.16 Impact assessment summary of potential facilitation of spread of MNNS 8.17 Summary of the Impact Assessment of the Tidal Site 8.18 Rochdale envelope parameters defined for assessing impacts relating to
construction, operation and decommissioning of the Western Export Cable Route
8.19 Subtidal biotopes identified along the Western Export Cable Route 8.20 Receptor Groups incorporating biotopes with similar biological and
physical characteristics considered in the EIA. 8.21 Summary of predicted pressures to be addressed in impact assessment
at the Western Export Cable Route 8.22 Impact assessment summary of direct physical disturbance 8.23 Impact assessment summary of increased suspended sediment and
deposition 8.24 Impact assessment summary of introduction of MNNS 8.25 Impact assessment summary of long term substratum loss and
recolonisation 8.26 Impact assessment summary of electromagnetic field effects 8.27 Impact assessment summary of facilitation of the spread of MNNS 8.28 Summary of the Impact Assessment of the Western Export Cable Route
West Islay Tidal Energy Park Environmental Statement
Number Title 9.1 Rochdale Envelope Parameters related to intertidal otter impacts 9.2 Summary of stakeholder responses relevant to intertidal otter
assessment 9.3 Approach to Identifying Sensitivity for Ecological Receptors 9.4 Criteria for Describing Magnitude (adapted from Percival 2007) 9.5 Criteria for Describing Reversibility of Effects 9.6 Consequence of Ecological Effects 9.7 9.8
Projects with Potential for Cumulative Impacts Summary of Potential Impacts on Otters
10.1 Technical Appendices Referenced by Ornithology Chapter 10.2 Summary of Rochdale Criteria Pertinent to Ornithological Assessment 10.3 Summary of Predicted Impacts, Mitigation and Residual Impacts 10.4 Key consultation comments relevant to birds 10.5 Species Vulnerability to Tidal Energy Converter Impacts Ordered by
Vulnerability Score. Based on Furness et al. 2012 10.6 Determining Factors for Nature Conservation Importance (NCI). 10.7 Criteria Used to Categorise Species Priority for EIA 10.8 Scales of Temporal Magnitude 10.9 Criteria for Assessing the Magnitude of Effects on Bird Populations 10.10 Criteria for Assessment of Sensitivity of Bird Populations 10.11 The Level of Significance of an Impact Resulting from each Combination
of Sensitivity and Magnitude 10.12 The estimated mean number of birds present in the development area
(DA) and development area buffered to 1 km (DA+1km) during the breeding season (see Appendix 3) compared to the assumed regional population. For fulmar, Manx shearwater and gannet the regional population is defined as south-west Scotland (Skye southwards) and Northern Ireland. For all other species the region is defined as Argyll & Bute and County Antrim. Population sizes are from Seabird 2000 census (Mitchell et al. 2004)
10.13 The estimated mean number of birds present in the development area (DA) and development area buffered to 1 km (DA+1km) during the autumn and winter compared to the assumed regional population. In the case of shag and black guillemot the regional population is assumed to be the same as the regional breeding population. For all other species the approximate regional autumn/winter population is derived from densities in Kober et al. 2010 multiplied by an area of 12,000 km2, the approximate seaward extent of NHZ14 and the coast of Northern Ireland.
10.14 Summary of EIA priority, Nature Conservation Importance (NCI) and status of bird species recorded in the development area during the breeding season
10.15 Summary of EIA priority, Nature Conservation Importance (NCI) and status of bird species recorded in the development area during the autumn and winter.
10.16 The potential for cumulative mortality impacts on regional populations of common guillemot and razorbill.
West Islay Tidal Energy Park Environmental Statement
Number Title 11.1 Technical Studies Referenced within the Natural Fish Chapter 11.2 EIA Chapters Relevant to the Natural Fish Chapter 11.3 Rochdale Envelope Parameters Relevant to the Natural Fish Chapter 11.4 PMFs Found Relative to the Tidal Site and Western Export Cable Route
During the Baseline Investigations and Surveys 11.5 Receptor Sensitivity Definitions used in the Assessment of Natural Fish
and Shellfish Resources 11.6 Impact Magnitude Definitions used in Assessment of Natural Fish and
Shellfish Resources 11.7 Summary of Assessed Potential Effects on Natural Fish and Shellfish
Species at the Tidal Site and Western Export Cable Route to Islay 12.1 Definition of Receptor Sensitivity 12.2 Definition of Magnitude of Impact 12.3 Assessment of Significance 12.4 Risk Matrix Description 12.5 Commercial Fisheries ‘Worst Case’ Scenario for the Islay Tidal Energy
Project 12.6 Details of Projects Considered for Cumulative Assessment 12.7 Summary of Assessed Potential Effects on Commercial Fisheries
Receptors for the Project, Construction Phase 12.8 Summary of Assessed Potential Effects on Commercial Fisheries
Receptors for the West Islay Tidal Project, Operational Phase 12.9 Summary of Assessed Cumulative Effects on Commercial Fisheries
Receptors for the Project, Construction Phase 12.10 Summary of Assessed Potential Effects on Commercial Fisheries
Receptors for the Project, Operational Phase 13.1 Cultural heritage asset impact description. 13.2 Rochdale principle realistic worst case 13.3 Definition of terms relating to the sensitivity to an effect. 13.4 Definition of magnitude of an effect upon receptors. 13.5 Criteria for assessment of sensitivity of a cultural heritage asset to
impacts on its setting. 13.6 Criteria for assessment of magnitude of an impact on the setting of a
cultural heritage asset. 13.7 The level of significance of an impact resulting from each combination of
sensitivity and magnitude. 13.8 NMRS records in the Immediate Study Area. 13.9 Anomalies with High Archaeological Potential in the Immediate Study
Area. 13.10 Anomalies with Medium Archaeological Potential in the Immediate Study
Area. 13.11 Assets Assessed for Setting Impacts. 13.12 13.13
Assets Assessed for Indirect Setting Impacts. Summary of Impacts
14.1 Rochdale Envelope Parameters for Shipping & Navigational Assessment 14.2 Summary of Commercial Shipping Scoping Responses (2009). 14.3 Gear Meshing Frequencies for SeaGen S
West Islay Tidal Energy Park Environmental Statement
Number Title 15.1 SLVIA Viewpoints 15.2 Landscape Sensitivity Criteria 15.3 Landscape Magnitude of Change Definitions 15.4 Visual Sensitivity Criteria 15.5 Visual Magnitude of Change Definitions 15.6 Assessment of Landscape Effects – Matrix 15.7 Assessment of Visual Effects - Matrix 15.8 Assessment of Visual Effects at Viewpoint 1 15.9 Assessment of Visual Effects at Viewpoint 2 15.10 Assessment of Visual Effects at Viewpoint 3 15.11 Assessment of Visual Effects at Viewpoint 4 15.12 Assessment of Visual Effects at Viewpoint 5 15.13 Assessment of Visual Effects at Viewpoint 6 15.14 Assessment of Visual Effects at Viewpoint 7 15.15 Effect upon the Rubha na Faing to Rinns Point SCU sub-type 15.16 Effect upon the Rubha na Faing to Machir Bay SCU sub-type 15.17 Effect upon the Lossit Bay SCU sub-type 15.18 Effect upon the Rinns Point to Port Charlotte SCU sub-type 15.19 Indirect Effect upon the Rocky Moorland LCT 15.20 Summary of Effects: Operational Phase 16.1 Ferries on the Kennacraig to Islay Service Operated by Caledonian
Macbrayne 17.1 Technical Studies 17.2 Evaluation of Impacts Criteria 17.3 Matrix of Sensitivity and Magnitude 17.4 Summary Impact on Tourism and Recreation Resources (Source:RTP
2012) 17.5 Summary of Tourism & Recreation Impacts and Residual Effects 18.1 Technical Studies 18.2 Evaluation of Impacts Criteria 18.3 Matrix of Sensitivity and Magnitude 18.4 Economic Benefits of Construction Scenario 18.5 Operation & Maintenance Economic Benefits by Scenario 18.6 Decommissioning Economic Benefits 18.7 Summary of Economic Benefits by Phase and Development Scenario 18.8 Cumulative Employment Impacts in Local and Wider Area 18.9 Summary of Potential Economic Impacts and Residual Effects 19.1 Noise Assessment Parameters 19.2 Measured noise levels between 90m and 140m away from a jack-up
barge with operating tugs and survey vessels in the vicinity 19.3 Predicted Installation Noise 21.1 Summary of Potential Impacts Before and After Adoption of Proposed
Mitigation
West Islay Tidal Energy Park Environmental Statement ________________________________________________________________
i
List of Figures:
Number Title Location
1.1 Site location Volume 3
3.1 UK Tidal Areas Meeting Selection Criteria Volume 3 3.2 Alternative Connection Route and substation locations Volume 3 4.1 Overview of EIA & HRA Main Steps Embedded
4.2 Projects Considered in Cumulative Impact Assessment Volume 3
5.1 Landfall Options Considered Embedded
5.2 Proposed Grid Connection Cable Route - For Information Embedded
5.3 Site Location Volume 3 5.4 Development Area Volume 3 5.5 Representation of the SeaGen Device Embedded
5.6 Strangford Lough TEC Crossarm Raised for Maintenance Embedded
5.7 Dimensions of SeaGen S Mark 2 Volume 3
5.8 Central Tower Visible During Operation Embedded
5.9 Representation of TGL Turbine Embedded
5.10 Representation of TGL TEC Embedded
5.11 Deleted Deleted 5.12 Deleted Deleted 5.13a Typical 15 Turbine Array Layout Volume 3
5.13b Typical 30 Turbine Array Layout Volume 3
5.14 Quadrapod Foundation Illustrating Temporary Top Beams Embedded
5.15 TGL Tripod Foundation Embedded
5.16 Bluetec Floating Platform Embedded
5.17 Bluetec Mooring System Embedded
5.18 Bauer Renewables BSD3000 Seabed Drill Embedded
5.19 Subsea Hub Embedded
5.20 Typical Cross Section of Double Armoured Cable Embedded
5.21 Ballasting with Stone Bags in Situ Embedded
5.22 Rock Bags Being Lowered Embedded
5.23 Different Applications of Rock Bag Installations Embedded
5.24 Cast Iron Cable Casings Embedded
5.25 Plough for Shallow Waters & Intertidal Zone Embedded
5.26 Onshore Cable Trenching Embedded
5.27 Tidal Zone Cable Plough Trenching Embedded
5.28 Port Locations Volume 3
5.29 Raising Template Following Location of Pin Piles Embedded
5.30 Lowering Pins of Tripod into Pre-piles Embedded
West Islay Tidal Energy Park Environmental Statement ________________________________________________________________
ii
Number Title Location
5.31 O&M Vessel Towing TGL Device Embedded
5.32 Installation Methodology TGL Embedded
5.33 Heavy Lift Shearleg Vessel – Rambiz Embedded
5.34 DP Jackup Vessel – Innovation Embedded
5.35 SeaGen S Raised Cross Arm for Maintenance Embedded
5.36 Bluetec Floating Platform Maintenance Embedded
5.37 Indicative Project Programme Embedded
6.1 Location of Video Camera Seabed survey Tracks Volume 3
6.2 Assessment Area Considered Volume 3
6.3 Location of amphidromic point near Islay Embedded
6.4 Current magnitude and vectors during spring ebb condition Embedded
6.5 Current magnitude and vectors during spring flood condition Embedded
6.6 Wave rose at the site (5539200N, 635700E) Embedded
7.1 Harbour seal haul-outs and at-sea density around the development site in the West Scotland (South) Seal Management Area.
Volume 3
7.2 Grey seal haul-outs and at sea density around the development area in the West Highland Management Area.
Volume 3
8.1 Locations of DDV sample stations at the Tidal site Volume 3
8.2 Locations of DDV, grab and epibenthic sample stations at the Western Cable Route
Volume 3
8.3 Biotopes present at the Tidal Site plotted onto UKSeaMap 2010 data
Volume 3
8.4 Biotopes present at the Tidal Site plotted onto Geophysical data Volume 3
8.5 Biotopes present on the Western Cable Route plotted onto UKSeaMap 2010 data
Volume 3
8.6 Biotopes present on the Western Cable Route plotted onto Geophysical survey data
Volume 3
9.1 Islay Intertidal Otter Survey Area Kintra landfall Volume 3
10.1 Site Location Volume 3
12.1 West Islay Tidal Project Commercial Fisheries Study Areas Volume 3
12.2 West Islay Tidal Project Salmon and Sea Trout Study Areas Volume 3
12.3 Landings Values by Species (Average 2006-2010) by in the National Study Area
Volume 3
12.4 Landings Values by Species (Average 2006-2010) in the Regional Study Area
Volume 3
12.5 Landings Values by Method (Average 2006-2010) in the Regional Study Area
Volume 3
12.6 Landings Values by Vessel Category (Average 2006-2010) in the Regional Study Area
Volume 3
12.7 Landings Values (Average 2006-2010) by Licensing Authority within the British Isles
Volume 3
12.8 Creel Grounds in the Vicinity of the Project Volume 3 12.9 King Scallop Landing Values (Average 2006 – 2010) in the
National Study Area Volume 3
12.10 Distribution of Scallop Grounds Based on VMS Data (>15m Volume 3
West Islay Tidal Energy Park Environmental Statement ________________________________________________________________
iii
Number Title Location
vessels only) in the Islay Area, 2011
12.11 Scallop Grounds in the Vicinity of the Project Volume 3 12.12 Annual Reported Salmon, Grilse & Sea Trout Catch (Average no.
individuals, 2002-2011) by District in the Regional & Local Study Areas
Volume 3
12.13 Annual Reported Catch (Average no. individuals, 2002-2011) by Method & District in the Regional & Local Study Areas
Volume 3
12.14 Annual (average 2002 to 2011) Net Fisheries Catch by Region & Distribution of Fisheries in Scotland (2009)
Volume 3
13.1 Site Overview and Study Areas Volume 3
13.2 Geophysical Targets and Recorded Wrecks and Obstructions Volume 3
13.3 Headland archaeology setting Volume 3
15.1 Zone of Theoretical Visibility with viewpoint locations Volume 3
15.2a Viewpoint 1. View south west from Portnahaven (Queen St.) - wireframe
Volume 3
15.3a Viewpoint 2. View west from Port Wemyss - wireframe Volume 3
15.4a Viewpoint 3 View south from Local Road, Claddach - wireframe Volume 3
15.5a Viewpoint 4. View south west from A847 - wireframe Volume 3
15.6a Viewpoint 5 View south from Local Road, Ben Cladville - wireframe
Volume 3
15.7a Viewpoint 6. View south west from Lossit Bay - wireframe Volume 3
15.8a Viewpoint 7. View west from Americal Monument, Mull of Oa - wireframe
Volume 3
15.2b Viewpoint 1. View south west from Portnahaven (Queen St.) - Photomontage
Volume 3
15.3b Viewpoint 2. View west from Port Wemyss.) - Photomontage Volume 3
15.4b Viewpoint 3 View south from Local Road, Claddach.) - Photomontage
Volume 3
15.5b Viewpoint 4. View south west from A847.) - Photomontage Volume 3
15.6b Viewpoint 5 View south from Local Road, Ben Cladville.) - Photomontage
Volume 3
15.7b Viewpoint 6. View south west from Lossit Bay.) - Photomontage Volume 3
15.8b Viewpoint 7. View west from Americal Monument, Mull of Oa.) - Photomontage
Volume 3
15.9 Cumulative ZTV: 15km Volume 3
15.10a Viewpoint 1. View from Portnahaven (Queen St.) Cumulative Wireframe
Volume 3
15.10b Viewpoint 1. View from Portnahaven (Queen St.) Cumulative Wireframe
Volume 3
15.11a Viewpoint 3 View south from Local Road, Claddach Cumulative Wireframe
Volume 3
15.11b Viewpoint 3 View south from Local Road, Claddach Cumulative Wireframe
Volume 3
16.1 Potential locations for Turbine shipping Volume 3
17.1 Map of Argyll Embedded
Chart 17.1 Impact of local business prospects Embedded
Chart 17.2 Impact on Argyll and Bute tourism prospects Embedded
19.1 Schematic Showing Measurement and Modelling Interaction Embedded
West Islay Tidal Energy Park Environmental Statement ________________________________________________________________
iv
Number Title Location
19.2 Drifting Ears Hydrophone Schematic and Photo of deployment Embedded
19.3 Tracks for Drifting Ears Hydrophones Embedded
19.4 Jack-up barges at Thorton Banks, Belgium Embedded
19.5 Rambiz HLV installing MCT SeaGen at Strangford Lough Embedded
19.6 North Sea Giant DP Vessel installing foundation Voith Turbine Embedded
19.7 Bauer Renewables BSD 3000 Seabed Drill Embedded
19.8 Power Spectral Density of a 50s Sample (blue) and averaged sample (red)
Embedded
19.9 Estimated Third Octave Levels (TOLs) of underwater noise for range of vessels fully underway in open waters.
Embedded
19.10 Typical time history of measured noise levels between 90 m and 140 m away from a jack-up barge with operating tugs and survey vessels in the vicinity.
Embedded
19.11 Frequency content of time history shown in Figure 19.9. Embedded
West Islay Tidal Energy Park Environmental Statement
- - i
List of Technical Appendices:
5.1 Fluids Tables - MCT
5.2 Materials Data Sheets - MCT
5.3 Materials Data Sheets – TGL
5.4 Fluids Tables - TGL
5.5 Rock Bag Specification
6.1 Metocean Tables
7.1 Baseline Report West Islay Tidal Energy Project
7.2 Baseline Condition Survey
7.3 Encounter Modelling
7.4 Acoustic Modelling Report 1 MCT
7.5 Acoustic Modelling Report 2 TGL
7.6 DP Energy Deal Telemetry Report
7.7 Summary of SMRU Seal Counts and Telemetry Tracks in the Islay Area
7.8 Baseline Noise Assessment SRSL
7.9 HRA Report
8.1 Islay Benthic Video Survey Report
8.2 Islay Tidal Benthic Baseline
10.1 Summary of Bird Surveys Technical Report.
10.2 HRA Ornithology Screening Report
11.1 DPE Natural Fish Baseline Report
12.1 DP Tidal Energy Comm Fish Baseline
12.2 DPE Salmon and Sea Trout Baseline
13.1 Archaeology - Baseline Report
14.1 Preliminary Hazard Analysis
15.1 SLVIA Baseline Report
17.1 SocioEconomic and Recreation and Amenity Baseline Report
17.2 Consultations and Issues Raised
18.1 Consultations and Issues Raised
West Islay Tidal Energy Park Environmental Statement
Chapter 21: Summary 1 June 2013
West Islay Tidal Energy Park Environmental Statement
Chapter 21: Summary 2 June 2013
21.0 Summary, Mitigation, Monitoring & Conclusions ................................. 3
21.1 Introduction .................................................................................. 3
21.2 Habitat Regulations Appraisal (HRA) ............................................... 3
21.3 Summary of Key High Level Mitigation and Best Practice Measures .. 4
21.4 Environmental Impact Assessment - Summary of Impacts ............... 4
21.5 Environmental Monitoring Plan (EMP) ........................................... 17
21.5.1 Introduction ............................................................................. 17
21.5.2 Proposed EMP .......................................................................... 17
21.6 Conclusion .................................................................................. 19
West Islay Tidal Energy Park Environmental Statement
Chapter 21: Summary 3 June 2013
21.0 Summary, Mitigation, Monitoring & Conclusions
21.1 Introduction DPME are submitting an application for consent to build and operate a 30MW tidal energy project, the West Islay Tidal Energy Park, off the south-west corner of Islay in Argyll and Bute in Scotland. The scope of application includes:
Tidal turbines;
Marshalling hub; Inter-array Cabling; and Export Cables to high water mark.
Excluded from the application are the following:
Onshore cabling (overhead or underground);
Sub-station and cable connection infrastructure; Sub-sea cable from Islay to Kintyre; and Service/monitoring Facilities.
The project, which is technology neutral, features a design envelope for the technology and turbine locations. The likely impacts of the Project have been identified in each chapter of the ES in relation to those key issues identified during the EIA process. As discussed in Chapter 2 – Legislative and Policy Context, the impact of the Project on the environment has been assessed against a set of baseline criteria. The significance criteria of the impacts are specific to each chapter and so defined individually therein. Impacts of a “Major” or “Major/Moderate” significance are considered to be “significant” in EIA terms.
21.2 Habitat Regulations Appraisal (HRA) In line with the requirements of the Conservation of Habitats and Species Regulations 2010, and the Conservation (Natural Habitats, &c.) Regulations 1994 (the Habitats Regulations) (‘the Habitat Regulations’), HRA was undertaken to evaluate the likely significant effects arising from the Project. This is provided in a separate report addressing Special Areas of Conservation for marine mammals, along with Special Protection Areas for birds (Technical Appendix 7.9). Based on the results presented in the report, for marine mammals it is concluded that there are no likely significant effects arising from the development, either alone, or in-combination with other plans or projects, and therefore appropriate assessment is not required.
West Islay Tidal Energy Park Environmental Statement
Chapter 21: Summary 4 June 2013
The HRA screening report (Appendix 10.2) concluded that there is no potential for the development to have a likely significant effect (LSE) on any qualifying ornithological feature at a Natura site. SNH advised that, through applying their screening criteria, there is potential for LSEs on breeding auk qualifying features (guillemot, razorbill and puffin) at six Natura sites. These potential LSEs will require to be examined in more detail through the process of Appropriate Assessment by the regulator. In the case of guillemot SNH advised that potential for LSE should be concluded for Ailsa Craig SPA, Canna and Sanday SPA, Mingulay and Berneray SPA, Rum SPA (all rated as low theoretical connectivity), North Colonsay and Western Cliffs SPA and Rathlin Island SPA (both rated as moderate theoretical connectivity). In the case of razorbill SNH advised that potential for LSE should be concluded for Rathlin Island SPA (rated as low/moderate theoretical connectivity). In the case of puffin SNH advised that potential for LSE should be concluded for Canna and Sanday SPA, Mingulay and Berneray SPA (both rated as low theoretical connectivity) and Rathlin Island SPA (rated as moderate theoretical connectivity).
21.3 Summary of Key High Level Mitigation and Best Practice Measures A number of key mitigation and best practice measures have been proposed throughout the ES spanning a number of receptors and/ or a number of different impacts. These are as follows: Development of an Environmental Management Plan (EMaP) to be agreed
with SNH and Marine Scotland, following submission of this ES. The EMaP will be a working document detailing the environmental actions highlighted in the ES, all activities to be carried out on site, responsibilities for those activities, environmental risks and the management protocols to be put in place to control these, as well as identification of personnel responsible for each element of the EMaP;
An Environmental Monitoring Programme (EMP), to be agreed with Marine Scotland (MS) and Scottish Natural Heritage (SNH);
A detailed Construction Method Statement (CMS) and a Pollution Control and Spillage Response Plan to be prepared and agreed with SEPA, SNH and MS-LOT prior to commencement of construction;
All work will be undertaken to an overarching Health, Safety and Environmental Management System (HSEMS), which will include the CMS, the PIRP and the EMaP. The project will be supervised in accordance with the Construction Design and Management Regulations (2007); and
Pollution Control and Spillage Response Plans to be developed and included in the EMaP;
21.4 Environmental Impact Assessment - Summary of Impacts
West Islay Tidal Energy Park Environmental Statement
Chapter 21: Summary 5 June 2013
The following information in Table 21.1 summarises the impact assessments carried out under each topic, mitigation measures proposed (where considered necessary) and the residual impact. The commitment to implement the proposed mitigation measures in association with recognised knowledge gaps will assist in informing the proposal to undertake environmental monitoring during construction and operation.
W
est
Isl
ay T
idal Energ
y P
ark
Environm
enta
l Sta
tem
ent
Chapte
r 21:
Sum
mary
6
June 2
013
Table
21.1
: Sum
mary
of
Pote
ntial Im
pact
s Befo
re a
nd A
fter
Adoption o
f Pro
pose
d M
itig
ation
Ch
ap
ter
Po
ten
tia
l Im
pa
cts
S
ign
ific
an
ce
M
itig
ati
on
Me
asu
re
R
esid
ua
l Im
pa
cts
Bio
logic
al Environm
ent
7 -
Mam
mals
Inju
ry
and
dis
turb
ance
due
to
nois
e
and pre
sence
of
const
ruct
ion vess
els
and a
ctiv
itie
s
n/a
N
o m
itig
ation d
eem
ed n
ece
ssary
, although a
Marine M
am
mal O
bse
rver
(MM
O)
may b
e u
sed d
uring c
onst
ruct
ion a
ctiv
itie
s to
halt o
pera
tions
if
marine m
am
mals
(or
bask
ing s
hark
s) a
re o
bse
rved w
ithin
clo
se r
ange
of th
e c
onst
ruct
ion a
ctiv
itie
s.
Min
or
- in
signific
ant
6.1
.1.1
D
ispla
cem
ent
leadin
g
to
habitat
excl
usi
on a
nd b
arr
ier
effect
s
N
o m
itig
ation d
eem
ed n
ece
ssary
. N
eglig
ible
6.1
.1.2
Colli
sion w
ith o
pera
ting t
urb
ines
6.1
.1.3
N
o m
itig
ation is
deem
ed n
ece
ssary
. To t
he e
xte
nt
feasi
ble
at
this
site,
DPM
E c
om
mit t
o u
ndert
akin
g m
onitoring s
tudie
s to
ass
ess
the a
ctual
level of im
pact
arisi
ng f
rom
the W
est
Isl
ay T
idal Energ
y P
ark
.
Modera
te
6.1
.1.4
Colli
sion w
ith m
ain
tenance
vess
els
Appro
priate
m
itig
ation
measu
res
will
re
duce
th
e
risk
to
m
arine
mam
mals
fr
om
in
tera
ctio
n w
ith vess
els
or
pro
pelle
rs (incl
udin
g th
e
‘cork
scre
w’ se
al is
sue)
to a
n a
ccepta
ble
level
Min
or
6.1
.1.5
Ele
ctro
magnetic
Fie
lds
(EM
F)
N
o m
itig
ation d
eem
ed n
ece
ssary
. N
eglig
ible
6.1
.1.6
Acc
identa
l re
lease
of
conta
min
ants
No m
itig
ation d
eem
ed n
ece
ssary
. M
inor
6.1
.1.7
In
direct
im
pact
s of
changes
to
pre
y
reso
urc
e
N
o m
itig
ation d
eem
ed n
ece
ssary
. N
eglig
ible
8 –
Benth
ic E
colo
gy
Tid
al
Site
Const
ruct
ion (a
nd
deco
mm
issi
onin
g)
Direct
physi
cal
dis
turb
ance
and
tem
pora
ry s
ubst
ratu
m loss
N
ot
signific
ant
No m
itig
ation d
eem
ed n
ece
ssary
N
ot
signific
ant
Sm
oth
ering (
rele
ase
of drill
cutt
ings)
N
ot
signific
ant
No m
itig
ation d
eem
ed n
ece
ssary
N
ot
signific
ant
Intr
oduct
ion
of
Marine
Non
Native
Speci
es
Not
signific
ant
No m
itig
ation d
eem
ed n
ece
ssary
N
ot
signific
ant
Tid
al
Site
–
Opera
tional
Long
term
su
bst
ratu
m
loss
and
colo
nis
ation o
f in
troduce
d s
ubst
ratu
m
Not
signific
ant
No m
itig
ation d
eem
ed n
ece
ssary
N
ot
signific
ant
Decr
ease
in w
ate
r flow
N
ot
signific
ant
No m
itig
ation d
eem
ed n
ece
ssary
N
ot
signific
ant
Conta
min
ation
Not
signific
ant
No m
itig
ation d
eem
ed n
ece
ssary
N
ot
signific
ant
Pote
ntial
faci
litation of
the sp
read of
MN
NS
Not
signific
ant
No m
itig
ation d
eem
ed n
ece
ssary
N
ot
signific
ant
West
ern
Cable
route
–
Direct
physi
cal
dis
turb
ance
and
tem
pora
ry
subst
ratu
m
loss
on
all
Not
signific
ant
No m
itig
ation d
eem
ed n
ece
ssary
N
ot
signific
ant
W
est
Isl
ay T
idal Energ
y P
ark
Environm
enta
l Sta
tem
ent
Chapte
r 21:
Sum
mary
7
June 2
013
Ch
ap
ter
Po
ten
tia
l Im
pa
cts
S
ign
ific
an
ce
M
itig
ati
on
Me
asu
re
R
esid
ua
l
Imp
acts
Const
ruct
ion
rece
pto
rs
Incr
ease
d
susp
ended
sedim
ent
and
deposi
tion o
n a
ll re
cepto
rs
Not
signific
ant
No m
itig
ation d
eem
ed n
ece
ssary
N
ot
signific
ant
Intr
oduct
ion
of
Marine
Non-N
ative
Speci
es
(MN
NS)
on a
ll re
cepto
r N
ot
signific
ant
No m
itig
ation d
eem
ed n
ece
ssary
N
ot
signific
ant
West
ern
Cable
route
–
Opera
tional
Long
term
su
bst
ratu
m
loss
and
colo
nis
ation o
f in
troduce
d s
ubst
ratu
m
Not
signific
ant
No m
itig
ation d
eem
ed n
ece
ssary
N
ot
signific
ant
Ele
ctro
magnetic
field
s on a
ll re
cepto
rs
Not
signific
ant
No m
itig
ation d
eem
ed n
ece
ssary
N
ot
signific
ant
Faci
litation
of
the
spre
ad
of
Marine
Non N
ative S
peci
es
Not
signific
ant
No m
itig
ation d
eem
ed n
ece
ssary
N
ot
signific
ant
9. O
tters
Const
ruct
ion (a
nd
deco
mm
issi
onin
g)
Dis
pla
cem
ent
and
loss
of
indiv
iduals
thro
ugh co
nst
ruct
ion nois
e,
vib
ration,
incr
ease
d tr
aff
ic or
beco
min
g tr
apped
in e
xca
vations.
Not
signific
ant
Best
pra
ctic
e w
ill b
e f
ollo
wed.
Not
signific
ant
Opera
tional
Dis
pla
cem
ent
thro
ugh
dis
turb
ance
cause
d
by
incr
ease
d
hum
an
act
ivity
during m
ain
tenance
act
ivitie
s.
Not
signific
ant
Best
pra
ctic
e w
ill b
e f
ollo
wed.
Not
signific
ant
10. Birds
Const
ruct
ion
Vess
el dis
turb
ance
of se
abirds
N
eglig
ible
si
gnific
ance
N
ot
required,
but
good p
ract
ice w
ill b
e f
or
pro
ject
vess
els
to s
tick
to
the d
efined r
oute
s and a
dopt
a v
olu
nta
ry s
peed lim
it o
f 15km
/hr.
N
eglig
ible
si
gnific
ance
Direct
habitat
loss
N
eglig
ible
signific
ance
None.
Neglig
ible
signific
ance
Opera
tional
Vess
el dis
turb
ance
of se
abirds
N
eglig
ible
signific
ance
Not
required,
but
good p
ract
ice w
ill b
e f
or
pro
ject
vess
els
to s
tick
to
the d
efined r
oute
s and a
dopt
a v
olu
nta
ry s
peed lim
it o
f 15km
/hr.
Neglig
ible
signific
ance
Seabird
dis
pla
cem
ent
from
, and
att
ract
ion t
o, m
arine h
abitats
N
eglig
ible
si
gnific
ance
Ensu
re t
hat
all
pote
ntial perc
hin
g loca
tions
are
safe
for
birds.
N
eglig
ible
si
gnific
ance
Colli
sion r
isk t
o d
ivin
g s
eabirds.
N
eglig
ible
signific
ance
Should
th
ere
be
evid
ence
of
colli
sion
mort
alit
y,
measu
res
will
be
consi
dere
d t
hat
aim
to p
revent
it o
ccurr
ing.
Neglig
ible
signific
ance
Marine p
ollu
tion a
nd c
onta
min
ation
Neglig
ible
signific
ance
Ensu
re t
hat
all
pote
ntial perc
hin
g loca
tions
are
safe
for
birds.
N
eglig
ible
signific
ance
Deco
mm
issi
onin
g
Vess
el dis
turb
ance
of se
abirds
N
eglig
ible
si
gnific
ance
N
ot
required,
but
good p
ract
ice w
ill b
e f
or
pro
ject
vess
els
to s
tick
to
the d
efined r
oute
s and a
dopt
a v
olu
nta
ry s
peed lim
it o
f 15km
/hr.
N
eglig
ible
si
gnific
ance
Habitat
rein
state
ment
Neglig
ible
signific
ance
Good p
ract
ice g
uid
ance
on h
abitat
rein
state
ment
pre
vaili
ng a
t th
e t
ime
will
be f
ollo
wed.
Neglig
ible
signific
ance
11 –
Natu
ral Fis
h
W
est
Isl
ay T
idal Energ
y P
ark
Environm
enta
l Sta
tem
ent
Chapte
r 21:
Sum
mary
8
June 2
013
Ch
ap
ter
Po
ten
tia
l Im
pa
cts
S
ign
ific
an
ce
M
itig
ati
on
Me
asu
re
R
esid
ua
l
Imp
acts
Const
ruct
ion (a
nd
deco
mm
issi
onin
g)
Flu
id/c
onta
min
ation
rele
ase
fr
om
const
ruct
ion
and
deco
mm
issi
onin
g
act
ivitie
s.
Neglig
ible
N
o m
itig
ation d
eem
ed n
ece
ssary
. H
ow
ever,
a P
roje
ct E
nvironm
enta
l M
anagem
ent
Pla
n (P
EM
P)
will
put
in pla
ce to
pro
vid
e co
ntr
ols
fo
r
avoid
ance
or
clean-u
p o
f su
ch s
pill
s, a
long w
ith t
he p
rovis
ion o
f sp
ill
kits.
O
nly
ce
rtifie
d co
nst
ruct
ion te
chniq
ues
will
be use
d and re
gula
r m
ain
tenance
check
s w
ill b
e c
arr
ied o
ut
to p
revent
spill
s. I
n a
dditio
n,
low
toxic
ity h
ydra
ulic
oils
and l
ubrica
nts
will
be u
sed,
com
plia
nt
with
national
and i
nte
rnational
standard
s, w
hic
h a
re a
lso b
iodegra
dable
in
most
case
s.
Not
Sig
nific
ant
Lig
ht
Pollu
tion d
uring c
onst
ruct
ion a
nd
deco
mm
issi
onin
g a
ctiv
itie
s
Neglig
ible
W
here
pra
ctic
al
it
may
be
poss
ible
to
lim
it
lighting
to
the
levels
re
quired (i.e
., not
over
light)
although noting th
e need to
m
ain
tain
lighting levels
for
the s
afe
ty o
f th
e o
pera
tions
bein
g c
onduct
ed a
t th
e
tim
e.
Not
Sig
nific
ant
Nois
e
and
vib
ration
during
const
ruct
ion
and
deco
mm
issi
onin
g
act
ivitie
s
Neglig
ible
N
o m
itig
ation d
eem
ed n
ece
ssary
. N
ot
Sig
nific
ant
Incr
ease
in
su
spended
sedim
ents
during
const
ruct
ion
and
deco
mm
issi
onin
g a
ctiv
itie
s
Neglig
ible
N
o m
itig
ation d
eem
ed n
ece
ssary
. N
ot
Sig
nific
ant
Inst
alle
d
Life
(fro
m
Const
ruct
ion
thro
ugh
to
Deco
mm
issi
onin
g)
Flu
id/c
onta
min
ation
rele
ase
d
from
devic
es
during
inst
alla
tion,
opera
tion
and/o
r deco
mm
issi
onin
g
Neglig
ible
N
o
mitig
ation
deem
ed
nece
ssary
.
Although
it
is
note
d
that
the
desi
gners
are
sele
ctin
g l
ow
toxic
ity o
ils a
nd lubrica
nts
to n
ational and
inte
rnational st
andard
s, w
hic
h a
re a
lso b
iodegra
dable
in m
ost
case
s.
Not
Sig
nific
ant
Loss
of sp
aw
nin
g g
rounds
Neglig
ible
N
o m
itig
ation d
eem
ed n
ece
ssary
N
ot
Sig
nific
ant
Loss
of nurs
ery
gro
unds
Neglig
ible
N
o m
itig
ation d
eem
ed n
ece
ssary
N
ot
Sig
nific
ant
Rem
oval/altera
tion of
habitats
due to
pre
sence
of new
devic
es/
cable
s
Neglig
ible
N
o m
itig
ation d
eem
ed n
ece
ssary
N
ot
Sig
nific
ant
Anti-f
oulin
g c
om
pounds
Neglig
ible
Anti-f
oulin
g
pain
ts
meeting
reco
gnis
ed
inte
rnational
and
national
standard
s th
at
do not
require additio
nal
treatm
ent
during opera
tion
are
bein
g s
ele
cted a
t th
e d
esi
gn s
tage.
MIN
OR
-
Not
Sig
nific
ant
Barr
iers
to fis
h s
peci
es
movem
ent
Neglig
ible
N
o m
itig
ation d
eem
ed n
ece
ssary
N
ot
Sig
nific
ant
W
est
Isl
ay T
idal Energ
y P
ark
Environm
enta
l Sta
tem
ent
Chapte
r 21:
Sum
mary
9
June 2
013
Ch
ap
ter
Po
ten
tia
l Im
pa
cts
S
ign
ific
an
ce
M
itig
ati
on
Me
asu
re
R
esid
ua
l
Imp
acts
Opera
tional
Colli
sion R
isk
Neglig
ible
N
o m
itig
ation d
eem
ed n
ece
ssary
N
ot
Sig
nific
ant
Opera
tional nois
e a
nd v
ibra
tion
Neglig
ible
N
o m
itig
ation d
eem
ed n
ece
ssary
N
ot
Sig
nific
ant
New
ele
ctro
magnetic
field
s in
troduce
d
to t
he T
idal Site
Neglig
ible
For
the d
evic
es,
tra
nsf
orm
er
and p
ow
er
conditio
nin
g e
quip
ment
have
been d
esi
gned i
nte
rnally
, hence
reduci
ng f
ield
eff
ect
s exte
rnal
to t
he
devic
e.
Extr
a h
eavy a
rmoure
d c
able
is
bein
g s
ele
cted f
or
the e
xport
cable
s,
whic
h
has
hig
her
levels
of
insu
lation
(com
pare
d
to
less
arm
oure
d c
able
).
Min
or
- N
ot
Sig
nific
ant
Changes
in t
idal flow
s N
eglig
ible
Consi
dering t
he s
mall
tota
l am
ount
of
energ
y t
aken o
ut
of
the e
xis
ting
extr
em
ely
energ
etic
conditio
ns,
the o
vera
ll co
nse
quence
of
impact
is
consi
dere
d n
eglig
ible
. N
o f
urt
her
managem
ent
act
ions
are
pro
pose
d,
noting t
hat
the d
evic
es
are
bein
g d
elib
era
tely
space
d (
see C
hapte
r 5
Pro
ject
D
esc
ription se
ctio
n 5.6
) w
hic
h ta
kes
acc
ount
of
flow
s and
pre
dic
ted w
ake e
ffect
s.
Neglig
ible
-
Not
Sig
nific
ant
Opera
tional lig
ht
pollu
tion
Neglig
ible
The lig
hting b
y n
atu
re is
desi
gned f
or
horizo
nta
l ill
um
ination,
with t
he
light
base
s als
o
pro
vid
ing
som
e
shie
ldin
g
again
st
dow
nw
ard
illum
ination
Min
or
- N
ot
Sig
nific
ant
Hum
an E
nvironm
ent
12 –
Com
merc
ial Fis
hin
g
Const
ruct
ion
Tem
pora
ry
Loss
of
Fis
hin
g
Gro
unds,
Cre
el Fis
hery
: W
est
ern
Cable
Route
Modera
te
Const
ruct
ion m
anagem
ent
pla
n ca
ble
burial/ro
ck pla
cem
ent,
sa
fety
zones,
Kin
gfish
er
Info
rmation S
yst
em
Min
or
Tem
pora
ry
Loss
of
Fis
hin
g
Gro
unds,
Loca
l Sca
llop
Fle
et:
W
est
ern
Cable
Route
Modera
te
Const
ruct
ion m
anagem
ent
pla
n ca
ble
burial/ro
ck pla
cem
ent,
sa
fety
zones,
Kin
gfish
er
Info
rmation S
yst
em
Min
or
Tem
pora
ry
Loss
of
Fis
hin
g
Gro
unds,
Vis
itin
g
and
Nom
adic
Sca
llop
Fle
et:
West
ern
Cable
Route
Min
or
Not
Required
Min
or
Safe
ty
Issu
es
For
Fis
hin
g
Vess
els
:
Tid
al Site
Bro
adly
Acc
epta
ble
N
ot
Required
Bro
adly
Acc
epta
ble
Safe
ty
Issu
es
For
Fis
hin
g
Vess
els
:
Inte
r arr
ay c
able
s
Tole
rable
w
ith
Additio
nal Contr
ols
See
Chapte
r 14:
Ship
pin
g
and
Navig
ation.
Cable
burial/ro
ck
pla
cem
ent,
safe
ty z
ones,
Kin
gfish
er
Info
rmation S
yst
em
Tole
rable
w
ith
Monitoring
Safe
ty
Issu
es
For
Fis
hin
g
Vess
els
: Tole
rable
w
ith
See
Chapte
r 14:
Ship
pin
g
and
Navig
ation.
Cable
burial/ro
ck
Tole
rable
w
ith
W
est
Isl
ay T
idal Energ
y P
ark
Environm
enta
l Sta
tem
ent
Chapte
r 21:
Sum
mary
10
June 2
013
Ch
ap
ter
Po
ten
tia
l Im
pa
cts
S
ign
ific
an
ce
M
itig
ati
on
Me
asu
re
R
esid
ua
l
Imp
acts
West
ern
Cable
Route
Additio
nal Contr
ols
pla
cem
ent,
safe
ty z
ones,
Kin
gfish
er
Info
rmation S
yst
em
M
onitoring
Incr
ease
d S
team
ing T
imes:
Tid
al Site
Bro
adly
Acc
epta
ble
N
ot
Required
Bro
adly
Acc
epta
ble
Incr
ease
d
Ste
am
ing
Tim
es:
W
est
ern
Cable
Route
Tole
rable
w
ith
Additio
nal Contr
ols
See
Chapte
r 14:
Ship
pin
g
and
Navig
ation.
Cable
burial/ro
ck
pla
cem
ent,
safe
ty z
ones,
Kin
gfish
er
Info
rmation S
yst
em
Tole
rable
w
ith
Monitoring
Inte
rfere
nce
to F
ishin
g A
ctiv
ity:
Tow
ed
Gear
Bro
adly
Acc
epta
ble
N
ot
Required
Bro
adly
Acc
epta
ble
Inte
rfere
nce
to F
ishin
g A
ctiv
ity:
Sta
tic
Gear
Tole
rable
w
ith
Additio
nal Contr
ols
See C
hapte
r 14:
Ship
pin
g a
nd N
avig
ation.
Const
ruct
ion M
anagem
ent
Pla
n
Tole
rable
w
ith
Monitoring
Dis
pla
cem
ent
of
Fis
hin
g V
ess
els
, C
reel
Fis
hery
: W
est
ern
Cable
Route
Modera
te
Const
ruct
ion m
anagem
ent
pla
n ca
ble
burial/ro
ck pla
cem
ent,
sa
fety
zones,
Kin
gfish
er
Info
rmation S
yst
em
Min
or
Dis
pla
cem
ent
of
Fis
hin
g V
ess
els
, L
oca
l
Sca
llop F
leet:
West
ern
Cable
Route
M
odera
te
Const
ruct
ion m
anagem
ent
pla
n ca
ble
burial/ro
ck pla
cem
ent,
sa
fety
zones,
Kin
gfish
er
Info
rmation S
yst
em
Min
or
Dis
pla
cem
ent
of
Fis
hin
g
Vess
els
,
Vis
itin
g
and
Nom
adic
Sca
llop
Fle
et
West
ern
Cable
Route
Min
or
Not
Required
Min
or
Opera
tional
Perm
anent
Loss
of
Fis
hin
g
Gro
unds,
Cre
el Fis
hery
: W
est
ern
Cable
Route
M
odera
te
Cable
burial/ro
ck p
lace
ment,
Kin
gfish
er
Info
rmation S
yst
em
M
inor
Perm
anent
Loss
of
Fis
hin
g
Gro
unds,
Loca
l Sca
llop
Fle
et:
W
est
ern
Cable
Route
Modera
te
Cable
burial/ro
ck p
lace
ment,
Kin
gfish
er
Info
rmation S
yst
em
M
inor
Perm
anent
Loss
of
Fis
hin
g
Gro
unds,
Vis
itin
g
and
Nom
adic
Sca
llop
Fle
et:
West
ern
Cable
Route
Min
or
Not
Required
Min
or
Safe
ty I
ssues
For
Fis
hin
g V
ess
els
: Tid
al
Site
Bro
adly
Acc
epta
ble
N
ot
Required
Bro
adly
Acc
epta
ble
W
est
Isl
ay T
idal Energ
y P
ark
Environm
enta
l Sta
tem
ent
Chapte
r 21:
Sum
mary
11
June 2
013
Ch
ap
ter
Po
ten
tia
l Im
pa
cts
S
ign
ific
an
ce
M
itig
ati
on
Me
asu
re
R
esid
ua
l
Imp
acts
Safe
ty
Issu
es
For
Fis
hin
g
Vess
els
:
Inte
r arr
ay c
able
s
Tole
rable
w
ith
Additio
nal Contr
ols
Cable
burial/ro
ck p
lace
ment,
Kin
gfish
er
Info
rmation S
yst
em
Tole
rable
w
ith
Monitoring
Safe
ty
Issu
es
For
Fis
hin
g
Vess
els
:
West
ern
Cable
Route
Tole
rable
w
ith
Additio
nal Contr
ols
Cable
burial/ro
ck p
lace
ment,
, K
ingfish
er
Info
rmation S
yst
em
Tole
rable
w
ith
Monitoring
Incr
ease
d S
team
ing T
imes:
Tid
al Site
Bro
adly
Acc
epta
ble
N
ot
Required
Bro
adly
Acc
epta
ble
Incr
ease
d
Ste
am
ing
Tim
es:
W
est
ern
Cable
Route
Tole
rable
w
ith
Additio
nal Contr
ols
Cable
burial/ro
ck p
lace
ment,
Kin
gfish
er
Info
rmation S
yst
em
Tole
rable
w
ith
Monitoring
Inte
rfere
nce
to F
ishin
g A
ctiv
ity:
Tow
ed
Gear
Bro
adly
Acc
epta
ble
N
ot
Required
Bro
adly
Acc
epta
ble
Inte
rfere
nce
to F
ishin
g A
ctiv
ity:
Sta
tic
Gear
Tole
rable
w
ith
Additio
nal Contr
ols
Opera
tional M
anagem
ent
Pla
n
Tole
rable
w
ith
Monitoring
Dis
pla
cem
ent
of
Fis
hin
g V
ess
els
, C
reel
Fis
hery
: W
est
ern
Cable
Route
M
odera
te
Cable
burial/ro
ck p
lace
ment,
Kin
gfish
er
Info
rmation S
yst
em
M
inor
Dis
pla
cem
ent
of
Fis
hin
g V
ess
els
, L
oca
l
Sca
llop F
leet:
West
ern
Cable
Route
Modera
te
Cable
burial/ro
ck p
lace
ment,
Kin
gfish
er
Info
rmation S
yst
em
M
inor
Dis
pla
cem
ent
of
Fis
hin
g
Vess
els
,
Vis
itin
g
and
Nom
adic
Sca
llop
Fle
et:
W
est
ern
Cable
Route
Min
or
Not
Required
Min
or
13 -
Arc
haeolo
gy
Const
ruct
ion
Direct
im
pact
on
arc
haeolo
gy
and
cultura
l herita
ge due to
in
stalla
tion of
infr
ast
ruct
ure
and c
ablin
g
Majo
r-
modera
te
signific
ance
Tem
pora
ry e
xcl
usi
on z
ones
will
be im
ple
mente
d a
nd infr
ast
ruct
ure
will
be m
icro
-sited t
o p
revent
invasi
ve a
ctiv
itie
s.
Writt
en S
chem
e o
f In
vest
igation (
WSI)
and P
roto
col fo
r Arc
haeolo
gic
al
Dis
coveries
(PAD
) w
ill
be
pre
pare
d
for
the
appro
val
of
His
toric
Sco
tland a
nd A
rgyll
and B
ute
Counci
l to
mitig
ate
const
ruct
ion e
ffect
s in
th
e
event
of
any
unexpect
ed
arc
haeolo
gic
al
dis
coveries
during
inst
alla
tion.
Neglig
ible
si
gnific
ance
W
est
Isl
ay T
idal Energ
y P
ark
Environm
enta
l Sta
tem
ent
Chapte
r 21:
Sum
mary
12
June 2
013
Ch
ap
ter
Po
ten
tia
l Im
pa
cts
S
ign
ific
an
ce
M
itig
ati
on
Me
asu
re
R
esid
ua
l
Imp
acts
These
measu
res
will
form
part
of th
e C
EM
P
Indirect
im
pact
on
arc
haeolo
gy
and
cultura
l herita
ge
due
to
physi
cal
pro
cess
es
Neglig
ible
si
gnific
ance
W
ritt
en S
chem
e o
f In
vest
igation (
WSI)
and P
roto
col fo
r Arc
haeolo
gic
al
Dis
coveries
(PAD
) w
ill
be
pre
pare
d
for
the
appro
val
of
His
toric
Sco
tland a
nd A
rgyll
and B
ute
Counci
l to
mitig
ate
const
ruct
ion e
ffect
s in
th
e
event
of
any
unexpect
ed
arc
haeolo
gic
al
dis
coveries
during
inst
alla
tion.
Neglig
ible
si
gnific
ance
Opera
tional
Indirect
im
pact
on
se
ttin
g
of
arc
haeolo
gy a
nd c
ultura
l herita
ge s
ites
due t
o s
itin
g o
f in
frast
ruct
ure
Min
or
to N
eglig
ible
si
gnific
ance
N
one.
Min
or
to N
eglig
ible
si
gnific
ance
Indirect
im
pact
on
arc
haeolo
gy
and
cultura
l herita
ge
due
to
physi
cal
pro
cess
es
Neglig
ible
si
gnific
ance
W
ritt
en S
chem
e o
f In
vest
igation (
WSI)
and P
roto
col fo
r Arc
haeolo
gic
al
Dis
coveries
(PAD
) w
ill
be
pre
pare
d
for
the
appro
val
of
His
toric
Sco
tland a
nd A
rgyll
and B
ute
Counci
l to
mitig
ate
const
ruct
ion e
ffect
s in
th
e
event
of
any
unexpect
ed
arc
haeolo
gic
al
dis
coveries
during
inst
alla
tion
Neglig
ible
si
gnific
ance
Deco
mm
issi
onin
g
Direct
im
pact
on
arc
haeolo
gy
and
cultura
l herita
ge
due
to
rem
oval
of
infr
ast
ruct
ure
Neglig
ible
si
gnific
ance
Sam
e a
s co
nst
ruct
ion
Neglig
ible
si
gnific
ance
Indirect
im
pact
on
arc
haeolo
gy
and
cultura
l herita
ge
due
to
physi
cal
pro
cess
es
Neglig
ible
si
gnific
ance
Sam
e a
s co
nst
ruct
ion
Neglig
ible
si
gnific
ance
14 –
Ship
pin
g &
Navig
ation
Ris
ks
to
navig
ation
from
th
e
cable
layin
g
and
devic
e
inst
alla
tion
opera
tions
Tole
rable
w
ith
Additio
nal Contr
ols
Applic
ation of
risk
co
ntr
ols
as
are
id
entified in
th
e N
SRA (T
ech
nic
al
Appendix
14.1
) w
ith re
gard
to
pre
venting vess
els
fr
om
ente
ring th
e
pro
ject
are
a are
im
ple
mente
d
in ord
er
to ensu
re th
at
the risk
is
reduce
d
Tole
rable
w
ith
monitoring
The r
isk t
o n
avig
ation a
risi
ng f
rom
the
pro
pose
d
cleara
nce
depth
s over
the
roto
rs o
f th
e M
CT S
eaG
en a
nd A
lsto
m-
TG
L d
evic
es
Tole
rable
w
ith
Additio
nal Contr
ols
Applic
ation of
risk
co
ntr
ols
as
are
id
entified in
th
e N
SRA (T
ech
nic
al
Appendix
14.1
) w
ith re
gard
to
pre
venting vess
els
fr
om
ente
ring th
e
pro
ject
are
a are
im
ple
mente
d
in ord
er
to ensu
re th
at
the risk
is
reduce
d
Tole
rable
w
ith
monitoring
The r
isk f
rom
vess
els
drift
ing i
nto
the
site
is
consi
dere
d a
s su
ffic
iently low
as
to b
e c
onsi
dere
d
Tole
rable
w
ith
Additio
nal Contr
ols
Ris
k is
suffic
iently low
giv
en t
he v
ess
el tr
affic
levels
and t
he n
um
bers
of re
cord
ed inci
dents
fro
m R
NLI
and M
AIB
data
.
Bro
adly
Acc
epta
ble
The
develo
pm
ent
are
a
should
be
chart
ed
appro
priate
ly
as
a
“Marine
Lim
it
in
Genera
l,
imply
ing
physi
cal
obst
ruct
ions
Tole
rable
w
ith
Additio
nal Contr
ols
This
does
not
excl
ude
navig
ation
but,
alo
ng
with
appro
priate
annota
tion
show
ing
that
limitin
g
depth
s apply
(e
ither
again
st
the
indiv
idual
devic
es
or
as
a ch
art
note
), pro
vid
es
the m
ariner
with
adequate
info
rmation o
n t
he h
aza
rds
pre
sente
d b
y t
he p
roje
ct.
Bro
adly
Acc
epta
ble
Ris
k to
su
ch sm
all
vess
els
due to
th
e
Tole
rable
w
ith
Whils
t pela
gic
and d
em
ers
al fish
ing a
ctiv
itie
s do n
ot
take p
lace
in t
he
Tole
rable
w
ith
W
est
Isl
ay T
idal Energ
y P
ark
Environm
enta
l Sta
tem
ent
Chapte
r 21:
Sum
mary
13
June 2
013
Ch
ap
ter
Po
ten
tia
l Im
pa
cts
S
ign
ific
an
ce
M
itig
ati
on
Me
asu
re
R
esid
ua
l
Imp
acts
pote
ntial
for
gear
enta
ngle
ment
when
reco
vering o
r la
yin
g s
tatic
gear
Additio
nal Contr
ols
are
a o
r its
imm
edia
te v
icin
ity, cr
eelin
g v
ess
els
do o
pera
te o
ff t
he R
inns
in t
he l
oca
l are
a.
This
would
require t
he i
mposi
tion o
f a “
No F
ishin
g”
are
a co
inci
dent
with th
e ch
art
ing of
the are
a as
a “M
arine Lim
it in
Genera
l co
nta
inin
g haza
rds”
is
im
pose
d fo
llow
ing co
nsu
ltation w
ith
loca
l fish
ing inte
rest
s and M
arine S
cotland
monitoring
The e
xport
cable
pre
sents
a h
aza
rd t
o
scallo
p d
redgin
g a
ctiv
itie
s betw
een t
he
site
and K
intr
a
Tole
rable
w
ith
Additio
nal Contr
ols
The c
able
route
is
chart
ed a
nd info
rmation o
n its
posi
tion p
rovid
ed t
o
Kin
gfish
er
Bro
adly
Acc
epta
ble
The
indiv
idual
devic
es/
sub
arr
ays
require
to
be
chart
ed
appro
priate
ly
subje
ct to
th
e lim
itations
of
the sc
ale
of
the
chart
and
the
need
to
avoid
co
ngest
ion o
f in
form
ation
Tole
rable
w
ith
Additio
nal Contr
ols
The indiv
idual devic
es/
sub a
rrays
are
chart
ed a
ppro
priate
ly s
ubje
ct t
o
the
limitations
of
the
scale
of
the
chart
and
the
need
to
avoid
congest
ion o
f in
form
ation
Bro
adly
Acc
epta
ble
The
sub-s
ea
devic
es
may
not
be
adequate
ly indic
ate
d b
y t
he lig
hting
Tole
rable
w
ith
Additio
nal Contr
ols
Where
the e
xte
nt
of
the s
ub-s
ea d
evic
es
is n
ot
adequate
ly i
ndic
ate
d
by th
e lig
hting and m
ark
ing applie
d to
any su
rface
devic
es
in th
e
arr
ay,
the a
rea s
hall
be m
ark
ed w
ith b
uoys
meeting t
he r
equirem
ents
of th
e I
ALA M
BS
Bro
adly
Acc
epta
ble
15 –
Landsc
ape &
Seasc
ape V
isual
Rec
epto
r
Cum
ula
tive S
LVIA
Rubha
na
Fain
g
to R
inns
Poin
t
Effect
s on
Seasc
ape
Chara
cter
Unit
Sub T
ypes
Not
signific
ant
Sig
nific
ant
cum
ula
tive e
ffect
s w
ould
be p
rim
arily
ass
oci
ate
d w
ith v
iew
s of
the p
ropose
d I
slay O
ffsh
ore
Win
d F
arm
. T
he p
ropose
d W
est
Isl
ay
Tid
al
Energ
y Pro
ject
w
ould
have very
lim
ited cu
mula
tive in
fluence
/
incr
em
enta
l eff
ect
.
Not
Sig
nific
ant
Rec
epto
r
Cum
ula
tive S
LVIA
Rubha
na
Fain
g
to M
ach
ir B
ay
Effect
s on
Seasc
ape
Chara
cter
Unit
Sub T
ypes
Not
signific
ant
The p
ropose
d W
est
Isl
ay T
idal
Energ
y P
roje
ct w
ould
have n
eglig
ible
in
crem
enta
l eff
ect
. N
ot
signific
ant
Loss
it B
ay
Effect
s on
Seasc
ape
Chara
cter
Unit
Sub T
ypes
Not
signific
ant
Sig
nific
ant
cum
ula
tive e
ffect
s w
ould
be p
rim
arily
ass
oci
ate
d w
ith v
iew
s
of
the p
ropose
d I
slay O
ffsh
ore
Win
d F
arm
. The p
ropose
d W
est
Isl
ay
Tid
al
Energ
y Pro
ject
w
ould
have very
lim
ited cu
mula
tive in
fluence
/
incr
em
enta
l eff
ect
.
Not
signific
ant
Kilc
hia
ran B
ay
Effect
s on
Seasc
ape
Chara
cter
Unit
Sub T
ypes
Not
signific
ant
The
pro
pose
d
West
Is
lay
Tid
al
Energ
y
Pro
ject
w
ould
have
no
incr
em
enta
l eff
ect
.
Not
signific
ant
Rin
ns
Poin
t to
Port
Charlott
e
Effect
s on
Seasc
ape
Chara
cter
Unit
Sub T
ypes
Not
signific
ant
The p
ropose
d W
est
Isl
ay T
idal
Energ
y P
roje
ct w
ould
have n
eglig
ible
in
crem
enta
l eff
ect
. N
ot
signific
ant
Rock
y
Moorland
Indirect
Effect
s on
Landsc
ape
Not
signific
ant
The p
ropose
d W
est
Isl
ay T
idal
Energ
y P
roje
ct w
ould
have n
eglig
ible
N
ot
signific
ant
W
est
Isl
ay T
idal Energ
y P
ark
Environm
enta
l Sta
tem
ent
Chapte
r 21:
Sum
mary
14
June 2
013
Ch
ap
ter
Po
ten
tia
l Im
pa
cts
S
ign
ific
an
ce
M
itig
ati
on
Me
asu
re
R
esid
ua
l
Imp
acts
LCT
Chara
cter
Types
incr
em
enta
l eff
ect
.
Are
a
of
Panora
mic
Qualit
y
Indirect
Effect
s on
Landsc
ape
Desi
gnations
Not
Sig
nific
ant
Sig
nific
ant
cum
ula
tive e
ffect
s w
ould
be p
rim
arily
ass
oci
ate
d w
ith v
iew
s of
the p
ropose
d I
slay O
ffsh
ore
Win
d F
arm
. T
he p
ropose
d W
est
Isl
ay
Tid
al
Energ
y Pro
ject
w
ould
have very
lim
ited cu
mula
tive in
fluence
/
incr
em
enta
l eff
ect
.
Not
signific
ant
Port
nahaven
Vis
ual
Effect
s Experience
d
by
Resi
dents
within
Sett
lem
ents
Not
Sig
nific
ant
Sig
nific
ant
cum
ula
tive e
ffect
s w
ould
be p
rim
arily
ass
oci
ate
d w
ith v
iew
s
of
the p
ropose
d I
slay O
ffsh
ore
Win
d F
arm
. T
he p
ropose
d W
est
Isl
ay
Tid
al
Energ
y Pro
ject
w
ould
have very
lim
ited cu
mula
tive in
fluence
/
incr
em
enta
l eff
ect
.
Not
signific
ant
Port
Wem
yss
Vis
ual
Effect
s Experience
d
by
Resi
dents
within
Sett
lem
ents
N
ot
Sig
nific
ant
Sig
nific
ant
cum
ula
tive e
ffect
s w
ould
be p
rim
arily
ass
oci
ate
d w
ith v
iew
s of
the p
ropose
d I
slay O
ffsh
ore
Win
d F
arm
. T
he p
ropose
d W
est
Isl
ay
Tid
al
Energ
y Pro
ject
w
ould
have very
lim
ited cu
mula
tive in
fluence
/
incr
em
enta
l eff
ect
.
Not
signific
ant
Resi
dents
w
ithin
10km
in
cludin
g:
Win
dyedge,
Port
-
a-R
eid
hle
inn,
Poll
a
Chappuil,
Cla
ddach
,
Bro
okfield
, An
Sabia
l,
the
Old
Sch
ool
House
, Bally
meanach
,
and f
arm
steads
at
Cla
dvill
e
and
Loss
it
Vis
ual
Effect
s Experience
d
by
Resi
dents
within
Dis
pers
ed P
ropert
ies
Not
Sig
nific
ant
Sig
nific
ant
cum
ula
tive e
ffect
s w
ould
be p
rim
arily
ass
oci
ate
d w
ith v
iew
s
of
the p
ropose
d I
slay O
ffsh
ore
Win
d F
arm
. T
he p
ropose
d W
est
Isl
ay
Tid
al
Energ
y Pro
ject
w
ould
have very
lim
ited cu
mula
tive in
fluence
/
incr
em
enta
l eff
ect
.
Not
Sig
nific
ant
A847
Vis
ual Effect
s Experience
d b
y M
oto
rist
s and O
ther
Road U
sers
N
ot
Sig
nific
ant
Sig
nific
ant
cum
ula
tive
eff
ect
s fr
om
lo
calis
ed
sect
ions
of
the
route
w
ould
be
prim
arily
ass
oci
ate
d
with
vie
ws
of
the
pro
pose
d
Isla
y
Off
shore
Win
d F
arm
. T
he p
ropose
d W
est
Isl
ay T
idal
Energ
y P
roje
ct
would
have v
ery
lim
ited c
um
ula
tive influence
/ incr
em
enta
l effect
.
Not
Sig
nific
ant
Port
nahaven
to
Port
Charlott
e via
Kilc
hia
ran
Vis
ual Effect
s Experience
d b
y M
oto
rist
s
and O
ther
Road U
sers
Not
Sig
nific
ant
Sig
nific
ant
cum
ula
tive e
ffect
s w
ould
be p
rim
arily
ass
oci
ate
d w
ith v
iew
s
of
the p
ropose
d I
slay O
ffsh
ore
Win
d F
arm
. T
he p
ropose
d W
est
Isl
ay
Tid
al
Energ
y Pro
ject
w
ould
have very
lim
ited cu
mula
tive in
fluence
/
incr
em
enta
l eff
ect
.
Not
Sig
nific
ant
Min
or
road
to
Cla
ddach
Vis
ual Effect
s Experience
d b
y M
oto
rist
s and O
ther
Road U
sers
N
ot
Sig
nific
ant
Sig
nific
ant
cum
ula
tive e
ffect
s w
ould
be p
rim
arily
ass
oci
ate
d w
ith v
iew
s of
the p
ropose
d I
slay O
ffsh
ore
Win
d F
arm
. T
he p
ropose
d W
est
Isl
ay
Tid
al
Energ
y Pro
ject
w
ould
have very
lim
ited cu
mula
tive in
fluence
/
Not
Sig
nific
ant
W
est
Isl
ay T
idal Energ
y P
ark
Environm
enta
l Sta
tem
ent
Chapte
r 21:
Sum
mary
15
June 2
013
Ch
ap
ter
Po
ten
tia
l Im
pa
cts
S
ign
ific
an
ce
M
itig
ati
on
Me
asu
re
R
esid
ua
l
Imp
acts
incr
em
enta
l eff
ect
.
Rec
epto
r
Cum
ula
tive S
LVIA
Pic
nic
site a
t Port
Wem
yss
Vis
ual
Effect
s Experience
d
by
Recr
eational Rece
pto
rs
Not
Sig
nific
ant
The
pro
pose
d
West
Is
lay
Tid
al
Energ
y
Pro
ject
w
ould
have
no
incr
em
enta
l eff
ect
.
Not
Sig
nific
ant
Core
Path
(Port
nahaven
to
Port
-a-R
eid
hle
inn)
Vis
ual
Effect
s Experience
d
by
Recr
eational Rece
pto
rs
Not
Sig
nific
ant
Sig
nific
ant
cum
ula
tive e
ffect
s w
ould
be p
rim
arily
ass
oci
ate
d w
ith v
iew
s
of
the p
ropose
d I
slay O
ffsh
ore
Win
d F
arm
. T
he p
ropose
d W
est
Isl
ay
Tid
al
Energ
y Pro
ject
w
ould
have very
lim
ited cu
mula
tive in
fluence
/
incr
em
enta
l eff
ect
.
Not
Sig
nific
ant
Core
Path
(Cla
ddach
)
Vis
ual
Effect
s Experience
d
by
Recr
eational Rece
pto
rs
Not
Sig
nific
ant
Sig
nific
ant
cum
ula
tive e
ffect
s w
ould
be p
rim
arily
ass
oci
ate
d w
ith v
iew
s
of
the p
ropose
d I
slay O
ffsh
ore
Win
d F
arm
. T
he p
ropose
d W
est
Isl
ay
Tid
al
Energ
y Pro
ject
w
ould
have very
lim
ited cu
mula
tive in
fluence
/
incr
em
enta
l eff
ect
.
Not
Sig
nific
ant
Core
Path
(Port
nahaven
to
Oct
ofa
d)
Vis
ual
Effect
s Experience
d
by
Recr
eational Rece
pto
rs
Not
Sig
nific
ant
Sig
nific
ant
cum
ula
tive e
ffect
s w
ould
be p
rim
arily
ass
oci
ate
d w
ith v
iew
s
of
the p
ropose
d I
slay O
ffsh
ore
Win
d F
arm
. T
he p
ropose
d W
est
Isl
ay
Tid
al
Energ
y Pro
ject
w
ould
have very
lim
ited cu
mula
tive in
fluence
/
incr
em
enta
l eff
ect
.
Not
Sig
nific
ant
Sum
mit
of
Ben
Cla
dvill
e
Vis
ual
Effect
s Experience
d
by
Recr
eational Rece
pto
rs
Not
Sig
nific
ant
The p
ropose
d W
est
Isl
ay T
idal
Energ
y P
roje
ct w
ould
have n
eglig
ible
cum
ula
tive e
ffect
.
Not
Sig
nific
ant
Beach
at
Loss
it
Bay
Vis
ual
Effect
s Experience
d
by
Recr
eational Rece
pto
rs
Not
Sig
nific
ant
Sig
nific
ant
cum
ula
tive e
ffect
s w
ould
be p
rim
arily
ass
oci
ate
d w
ith v
iew
s
of
the p
ropose
d I
slay O
ffsh
ore
Win
d F
arm
. T
he p
ropose
d W
est
Isl
ay
Tid
al
Energ
y Pro
ject
w
ould
have very
lim
ited cu
mula
tive in
fluence
/
incr
em
enta
l eff
ect
.
Not
Sig
nific
ant
Sum
mit
of
Bein
n
Tart
a’ M
hill
Vis
ual
Effect
s Experience
d
by
Recr
eational Rece
pto
rs
Not
Sig
nific
ant
The p
ropose
d W
est
Isl
ay T
idal
Energ
y P
roje
ct w
ould
have n
eglig
ible
cu
mula
tive e
ffect
. N
ot
Sig
nific
ant
Cultoon
Sto
ne
Circl
e
Vis
ual
Effect
s Experience
d
by
Recr
eational Rece
pto
rs
Not
Sig
nific
ant
The p
ropose
d W
est
Isl
ay T
idal
Energ
y P
roje
ct w
ould
have n
eglig
ible
cum
ula
tive e
ffect
.
Not
Sig
nific
ant
Rec
epto
r
Cum
ula
tive S
LVIA
The
Geara
ch
hunting e
state
Vis
ual
Effect
s Experience
d
by
Recr
eational Rece
pto
rs
Not
Sig
nific
ant
The p
ropose
d W
est
Isl
ay T
idal
Energ
y P
roje
ct w
ould
have n
eglig
ible
cum
ula
tive e
ffect
.
Not
Sig
nific
ant
Core
Path
(Kilc
hia
ran
to
Mach
ir B
ay)
Vis
ual
Effect
s Experience
d
by
Recr
eational Rece
pto
rs
Not
Sig
nific
ant
The p
ropose
d W
est
Isl
ay T
idal
Energ
y P
roje
ct w
ould
have n
eglig
ible
cum
ula
tive e
ffect
.
Not
Sig
nific
ant
Boat
trip
s fr
om
Port
Elle
n t
o L
och
In
daal
Vis
ual
Effect
s Experience
d
by
Recr
eational Rece
pto
rs
Not
Sig
nific
ant
Not
Sig
nific
ant
Not
Sig
nific
ant
W
est
Isl
ay T
idal Energ
y P
ark
Environm
enta
l Sta
tem
ent
Chapte
r 21:
Sum
mary
16
June 2
013
Ch
ap
ter
Po
ten
tia
l Im
pa
cts
S
ign
ific
an
ce
M
itig
ati
on
Me
asu
re
R
esid
ua
l
Imp
acts
Saili
ng a
nd f
ishin
g
vess
els
fr
om
Port
nahaven
and
Port
Wem
yss
Vis
ual
Effect
s Experience
d
by
Recr
eational Rece
pto
rs
Not
Sig
nific
ant
Sig
nific
ant
cum
ula
tive e
ffect
s w
ould
be p
rim
arily
ass
oci
ate
d w
ith v
iew
s of
the p
ropose
d I
slay O
ffsh
ore
Win
d F
arm
. The p
ropose
d W
est
Isl
ay
Tid
al
Energ
y
Pro
ject
w
ould
ty
pic
ally
have
very
lim
ited
cum
ula
tive
influence
/ incr
em
enta
l eff
ect
on t
he v
iew
experience
d b
y p
ass
engers
at
dis
tance
s of appro
xim
ate
ly 2
km
or
more
fro
m t
he p
ropose
d T
ECs.
Not
Sig
nific
ant
Am
erica
n
Monum
ent,
M
ull
of O
a
Vis
ual
Effect
s Experience
d
by
Recr
eational Rece
pto
rs
Not
Sig
nific
ant
The p
ropose
d W
est
Isl
ay T
idal
Energ
y P
roje
ct w
ould
have n
eglig
ible
cum
ula
tive e
ffect
.
Not
Sig
nific
ant
16
– T
raff
ic &
Tra
nsp
ort
. N
o m
ajo
r onsh
ore
vehic
le m
ovem
ent
ass
oci
ate
d w
ith t
he p
roje
ct. O
ffsh
ore
vess
el im
pact
s co
vere
d u
nder
chapte
r 12 a
nd 1
4 a
bove.
17 –
Recr
eation a
nd A
menity
Tourism
& R
ecr
eation V
isual Im
pact
s
Min
or
Where
appro
priate
w
ork
s w
ill
be
pro
gra
mm
ed
to
avoid
peak
tourist
ro
ute
s at
peak
vis
itor
tim
es
to
min
imis
e
pote
ntial
congest
ion a
nd/o
r dis
ruption.
Tem
pora
ry in
terr
uption of
recr
eation ro
ute
s during ca
ble
ro
ute
const
ruct
ion (
where
applic
able
) w
ill b
e c
are
fully
managed a
nd a
ny
div
ers
ions
clearly s
ign-p
ost
ed.
During t
he t
em
pora
ry c
able
route
work
s, s
creenin
g m
easu
res
may
be i
mple
mente
d t
o r
educe
im
pact
s on p
ass
ing r
ecr
eational
use
rs
or
from
recr
eational fo
cal poin
ts
Min
or
Tourism
Acc
om
modation I
mpact
s
18 S
oci
o-e
conom
ic
Const
ruct
ion
2-3
Full
Tim
e E
quiv
ale
nt
Jobs
Min
or
Soci
o-e
conom
ic m
itig
ation w
ould
only
apply
as
a r
esu
lt o
f th
ere
bein
g
a
num
ber
of
national,
regio
nal
and
loca
l in
itia
tives
involv
ing
the
Sco
ttis
h G
overn
ment,
re
gio
nal
and lo
cal
develo
pm
ent
agenci
es
with
the a
im o
f pro
vid
ing e
nhance
d s
kill
s tr
ain
ing,
supply
chain
pro
vis
ion,
and s
upport
for
busi
ness
im
pro
vem
ent
work
ing in t
he o
ffsh
ore
marine
devic
es
indust
ry,
in t
he W
est
of
Sco
tland.
These
will
not
act
to r
educe
negative im
pact
s, as
no su
ch im
pact
s have been id
entified in
th
e
ass
ess
ment.
H
ow
ever,
they w
ould
ass
ist
in r
ealis
ing a
nd m
axim
isin
g
the
opport
unitie
s in
th
e
study
are
a
and
where
appro
priate
th
e
applic
ants
will
support
these
initia
tives
Min
or
Opera
tion
&
main
tenance
2-5
Full
Tim
e E
quiv
ale
nt
Jobs
Min
or
Min
or
Deco
mm
issi
onin
g
13 F
ull
Tim
e E
quiv
ale
nt
Jobs
Modera
te
Modera
te
19
-
No
ise –
Pote
ntial im
pact
s addre
ssed in c
hapte
r 7 –
Marine M
am
mals
& C
hapte
r 11 N
atu
ral Fis
h
20
– E
MF -
– P
ote
ntial im
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West Islay Tidal Energy Park Environmental Statement
Chapter 21: Summary 17 June 2013
21.5 Environmental Monitoring Programme (EMP)
21.5.1 Introduction Currently there are no arrays of tidal turbines operating anywhere in the world as tidal energy devices are an emerging technology, with limited operational developments upon which to base aspects of assessment. Where devices have been operating and potential environmental interactions have been monitored, the results to date indicate no significant adverse environmental impacts (Strangford Lough for example). However, it is appreciated that the potential interactions of an array of devices is to some extent unknown, and assessments must be necessarily based on data for single devices from expert judgement based on knowledge of potential receptors and current understanding of the potential effects of single devices extrapolated to encompass an array. In the rapidly developing tidal energy sector, research and environmental monitoring works are either on-going, or planned, at a number of locations in the UK and internationally. In this evolving climate, there is no significant benefit to proposing detailed monitoring plans, the details and premise of which may require considerable revision in the light of new knowledge expected post consent. The knowledge gained from environmental monitoring at tidal array sites will have some elements which are specific to individual sites, elements which are specific to individual technologies, however, much of the data collected will be widely applicable to, and of benefit to, developers in the wider tidal energy sector. It would be perverse, therefore, for the burden of such monitoring to fall solely on the handful of developers who have well developed technology and sites, while benefits from that monitoring are available to other, less pioneering developers. For this reason, national government support for aspects of environmental monitoring at early tidal sites is essential if the burden of knowledge collection is to be fairly shared. An Environmental Monitoring Programme (EMP) will be developed through discussion with the regulatory authorities to ensure that the purpose of the monitoring is agreed; that objectives are set according to consensus on the ability to detect change attributable to the development; and that this is considered according to a reasonable cost / scale of studies, proportionate to the level of risk identified. This will be programme defined over an appropriate timescale, with defined reporting intervals.
21.5.2 Proposed EMP Based on the findings of the EIA Chapters which are summarised in table 21.1 above, marine mammals and basking sharks and birds have been identified as possibly requiring further monitoring to better understand the potential impacts of the array of devices and to confirm the assumptions made in determining the level of potential impact to be attributed.
West Islay Tidal Energy Park Environmental Statement
Chapter 21: Summary 18 June 2013
21.5.2.1 Marine Mammals
DPME propose to undertake detailed statistical analysis based on the occurrence of species at the site and the scale of change anticipated, to determine feasible monitoring strategies at the site. Noting that the site is an open ocean location, with low densities of marine mammal species and basking sharks, it will be relevant to consider the feasibility, and associated cost of detecting changes attributable to the development. The results of this study will then need to be discussed relative to the anticipated risks at the site to determine the precise scope of the on-going monitoring strategy. The development of an environmental monitoring programme for the West Islay Tidal Energy Park will most likely be undertaken by SRSL who propose to use the latest information gathered from the baseline studies in high energy locations combined with lessons from other marine industries to design an environmental monitoring framework that can be applied to across the tidal-stream sector. The approach will involve a thorough, scientific design phase, to consider the specific tools required for monitoring impacts to marine mammals (and other receptors), including existing techniques and development of new techniques. The statistical power needed to detect change at the project site will be closely investigated, to ensure that experimental design is effective and cost-efficient. This will address the development of EMPs that can assess with a known degree of certainty levels of impact to marine mammals and whether re-design, mitigation or site adjustment are required / effective. DPME recognise that monitoring of effects from tidal arrays is challenging and complex, considering the scale of impacts ranging from impacts upon individuals at the array site, and population level effects. For the regulator to accurately determine and assign effects at a project and sector level, and considering the commitments to do so through strategic assessment, etc, DPME support discussion on where collaborative effort may be initiated, so that collective resources are used efficiently. This would ensure cost-effective gains in evidence of impacts to support development of the sector. For example, resources may be contributed to large scale population level studies such as improving the annual haul-out studies currently undertaken by SMRU. Additionally, certain project locations will be more amenable (more likely to demonstrate effects at reasonable cost) than others where it may be impossible to do so. Experience at Strangford Lough is helpful in demonstrating the level of investment and study required to provide evidence of effects occurring, and considering this relative to an open ocean tidal system will be relevant to determining likely costs and feasibility. In this regard, it may be considered appropriate for developers to share costs of undertaking monitoring at particular sites which are comparable to the proposed project.
West Islay Tidal Energy Park Environmental Statement
Chapter 21: Summary 19 June 2013
21.5.2.3 Birds
None of the Project’s potential effects on birds are deemed to be of more than minor significance, however, current good practice suggests that an appropriately detailed monitoring programme be agreed and implemented. The two-year bird survey programme was designed to give data that would form a suitable baseline against which to compare future monitoring data. Collection of boat-based survey data using the same method during the installation and operational phases would potentially provide a means to measure the extent of any seabird displacement response to the development. Future monitoring should focus on the species rated as having or medium EIA priority (guillemot and razorbill, no species merited a rating of high priority) and SPA qualifying species for which potential LSE has been identified (guillemot, razorbill and puffin). Nevertheless, monitoring should only be embarked upon if it can be shown (for example by a statistical power analysis) that there is a realistic possibility of showing a significant displacement effect, something that may be unlikely given the generally low encounter rates of auk species during the baseline surveys. The surveys noted above should be conducted during installation and in years 1 to 3, 5 and 10 of the Project’s 25 year operation period. However, flexibility will be retained to cancel this monitoring programme if it is clear that useful information is not being collected. Monitoring the response of diving auks to turbine rotors and provide data on collision risk would also be desirable. However, at this stage it is not clear how this may be practically achieved. The exposed offshore location of the Project means that compared to some other tidal energy developments (e.g., Sound of Islay Demonstration project and MCT Strangford Lough project) this development is a naturally poor candidate for research aimed at better understanding the collision risks posed to diving birds by TECs.
21.6 Conclusion The Environmental Impact Assessment (EIA) has been carried out by DPME in accordance with relevant EU, UK and Scottish regulations and has robustly assessed the potential environmental impacts of the proposed Project. The EIA has assessed the worst-case scenario that would have the greatest effect on the environment. This approach results in a maximum impact assessment, giving security and confidence to the consenting authorities that the environmental impact will be no greater than that which is set out within the Environmental Statement and in fact may be considerably less. The initial array will provide information on the interactions between the array and the environment, increasing the knowledge for the remaining phases of the Project and the tidal stream industry as a whole.
West Islay Tidal Energy Park Environmental Statement
Chapter 21: Summary 20 June 2013
The West Islay Tidal Energy Park represents an important development step for tidal stream technology in terms of the scale of development and in the transition from prototype technology to full development. The development of marine renewables is a key objective for Scotland and the Project represents a key part of the Scottish and UK renewable energy strategies.