Offshore Planning Application

Spiorad na Mara offshore windfarm has submitted its planning consent application for the offshore elements to the Scottish Government’s Marine Directorate – Licensing Operations Team.

The application covers the offshore infrastructure required to generate renewable electricity, including wind turbines, foundations, a potential offshore substation, array cables, and offshore export cables.

The submission follows several years of detailed technical assessments, environmental surveys, community and stakeholder engagement and extensive public consultation. The application is supported by a comprehensive Environmental Impact Assessment Report (EIAR), which evaluates potential effects which may arise from the development on the environment, people and local communities and details the measures which will be taken to avoid, minimise or offset any impacts.

The application and all associated documents are available to view on the Marine Directorate’s website: here and also by using the links below.

Between March 26^th and May 7^th, the planning application materials can also be viewed in person at the three venues listed below:

Location	Address	Hours
Stornoway Library	19 Cromwell Street, Stornoway Isle of Lewis, HS1 2DA	Tuesday – Friday: 10:00 – 17:00 Saturday 10:00 – 16:00
Horshader Community Development	Raebhat House, North Shawbost, Isle of Lewis, HS2 9BD	Monday – Thursday: 9:00 – 17:00 Friday 9:00 – 16:00 (please note that the venue will be closed for a pre-arranged community service on April 30th and the documents will not be available for viewing on that day)
Carloway Community Centre	Knock, Carloway, Isle of Lewis, HS2 9AU	Monday – Saturday 10:00 – 17:00 (please note that these are the core opening hours, but the venue may be open for longer periods some days)

Copies of the EIA report may also be obtained, at a cost of £10 (including post and packaging), on a pre-loaded USB stick by contacting Kathleen Milne, the Community Liaison Officer at kathleen.milne@northlandpower.com. Printed copies of the Non-Technical Summary may be obtained, free of charge (while stocks last) directly from Kathleen also.

Any representations should be made in writing to the Scottish Ministers by email to MD.MarineRenewables@gov.scot or by post to Marine Directorate – Licensing Operations Team, Scottish Government, 375 Victoria Road, Aberdeen, AB11 9DB, identifying the proposed development and specifying the grounds for the representation, not later than 7 May 2026.

Planning Documents

S36 Application letter	190KB
Transmission Marine Licence Application Form and Supporting Document	444KB
Generation Marine Licence Application Form and Supporting Document	444KB
Offshore Pre-Application Consultation report	223MB
Spiorad na Mara Offshore Wind Farm Planning Statement	1.22MB

Spiorad na Mara Offshore Environmental Impact Assessment Report (EIAR)

Volume 1 - Introductory Chapters

Reference	Title	File size
1a	Spiorad na Mara Non-Technical Summary	5.00MB
1a	Spiorad na Mara EIAR Chapter 1- Introduction	601KB
1b	Spiorad na Mara EIAR Chapter 1 Introduction – Figures	4.94MB
1c	Spiorad na Mara EIAR Appendix 1.1 – Glossary and Abbreviations	956KB
1c	Spiorad na Mara EIAR Appendix 1.2 – Competent Experts	278KB
2a	Spiorad na Mara EIAR Chapter 2 – Policy and Legislative Context	359KB
3a	Spiorad na Mara EIAR Chapter 3 – Project Description	1.47MB
3b	Spiorad na Mara EIAR Chapter 3 Project Description – Figures	7.15MB
3c	Spiorad na Mara EIAR Appendix 3.1 – Percussive Piling Installation Approach	3.59MB
3c	Spiorad na Mara EIAR Appendix 3.2 – Offshore Project Parameters	459KB
3c	Spiorad na Mara EIAR Appendix 3.3 – Offshore Project Coordinates	611KB
4a	Spiorad na Mara EIAR Chapter 4 – Consideration of Alternatives	422KB
4b	Spiorad na Mara EIAR Chapter 4 Consideration of Alternatives – Figures	7.85MB
5a	Spiorad na Mara EIAR Chapter 5 Approach to EIA	641KB
5c	Spiorad na Mara EIAR Appendix 5.1 – EIA Regulations Requirements	289KB
5c	Spiorad na Mara EIAR Appendix 5.2 – Response to Scoping Opinion	384KB
5c	Spiorad na Mara EIAR Appendix 5.3 – Cumulative Effects Assessment Shortlisted Developments	600KB
5c	Spiorad na Mara EIAR Appendix 5.4 – Offshore Stakeholder Consultation and Engagement	497KB

Volume 2 - Offshore Technical Aspects

Reference	Title	File size
6a	Spiorad na Mara EIAR Chapter 6 – Socio-economics	1.78MB
6b	Spiorad na Mara Chapter 6 Socio-Economics – Figures	10.4MB
6c	Spiorad na Mara EIAR Appendix 6.1 Social and Economic Baseline	1.11MB
6c	Spiorad na Mara EIAR Appendix 6.2 – Focus Group Summary Report	454KB
7a	Spiorad na Mara EIAR Chapter 7 – Climate Resilience	742KB
7c	Spiorad na Mara EIAR Appendix 7.1 – Climate Change Vulnerability Assessment	352KB
8a	Spiorad na Mara EIAR Chapter 8 – Greenhouse Gases	1.07MB
9a	Spiorad na Mara EIAR Chapter 9 – Physical and Coastal Processes	1.38MB
9b	Spiorad na Mara EIAR Chapter 9 Physical and Coastal Processes – Figures	32.4MB
9c	Spiorad na Mara EIAR Appendix 9.1 – Physical and Coastal Processes Modelling Calibration & Validation Report	1.975MB
9c	Spiorad na Mara EIAR Appendix 9.2 – Physical and Coastal Processes Modelling Results Report	4.389MB
10a	Spiorad na Mara EIAR Chapter 10 – Marine Sediment and Water Quality	0.98MB
10b	Spiorad na Mara EIAR Chapter 10 Marine Sediment and Water Quality – Figures	6.22MB
10c	Spiorad na Mara EIAR Appendix 10.1 – Water Framework Directive – Assessment and Technical Report	883KB
10c	Spiorad na Mara EIAR Annex 10.1.1 – Water Framework Directive Water Body Data	491KB
11a	Spiorad na Mara EIAR Chapter 11 – Benthic and Intertidal Ecology	887KB
11b	Spiorad na Mara EIAR Chapter 11 Benthic and Intertidal Ecology – Figures	2.56MB
11c	Spiorad na Mara EIAR Appendix 11.1 – Subtidal Environmental Baseline Survey, Technical Report	30.531MB
12a	Spiorad na Mara EIAR Chapter 12 – Fish Ecology	2.47MB
12b	Spiorad na Mara EIAR Chapter 12 Fish Ecology – Figures	2.61MB
12c	Spiorad na Mara Appendix 12.1 Fish Ecology Baseline	6.08MB
12c	Spiorad na mara EIAR Annex 12.1.2 eDNA Report	1.152MB
12c	Spiorad na Mara EIAR Annex 12.1.3 – Fish Tracking Study (Atlantic Salmon Fish Tagging Survey)	2.54MB
12c	Spiorad na Mara EIAR Appendix 12.2 – Consultation on Atlantic salmon underwater noise assessment and associated data analysis	3.293MB
12c	Spiorad na Mara Appendix 12.3 – Overview of Percussive Piling Fish Ecology Mitigation	693KB
13a	Spiorad na Mara EIAR Chapter 13 – Marine Mammals	3.64MB
13b	Spiorad na Mara EIAR Chapter 13 Marine Mammals – Figures	25.8MB
13c	Spiorad na Mara EIAR Appendix 13.1 – Digital Aerial Bird and Marine Megafauna Surveys	134MB
13c	Spiorad na Mara EIAR Appendix 13.2 – Passive Acoustic Monitory Survey Report	2.66MB
13c	Spiorad na Mara EIAR Appendix 13.3 – Underwater Noise Modelling Assessment	2.47MB
13c	Spiorad na Mara EIAR Appendix 13.4 Marine Mammal Population Modelling	1.33MB
14a	Spiorad na Mara EIAR Chapter 14 – Marine and Nearshore Ornithology	1.107MB
14b	Spiorad na Mara EIAR Chapter 14 Marine and Nearshore Ornithology – Figures	7.93MB
14c	Spiorad na Mara EIAR Appendix 14.1 – Baseline Characterisation Report	5.64MB
14c	Spiorad na Mara EIAR Annex 14.1.1 Apportioned Abundance Estimates Array plus Buffers	2.22MB
14c	Spiorad na Mara EIAR Annex 14.1.2 – Unapportioned Abundance Estimates Array plus Buffers	2.84MB
14c	Spiorad na Mara EIAR Annex 14.1.3 – Survey Distribution Figures	11.3MB
14c	Spiorad na Mara EIAR Annex 14.1.4 – MRSea Modelling Report	698KB
14c	Spiorad na Mara EIAR Annex 14.1.4.A – MRSea Unapportioned Abundance Estimates	1.53MB
14c	Spiorad na Mara EIAR Annex 14.1.4.B – MRSea Apportioned and Corrected Abundance Estimates	1.64MB
14c	Spiorad na Mara EIAR Annex 14.1.4.C – MRSea Model Abundance Confidence Limits and Coefficient of Variation	1.60MB
14c	Spiorad na Mara EIAR Annex 14.1.4.D – MRSea Model Diagnostics	8.46MB
14c	Spiorad na Mara EIAR Annex 14.1.5 – Colonies in Regional Breeding Population	2.538MB
14c	Spiorad na Mara EIAR Appendix 14.2 – Displacement Report	591KB
14c	Spiorad na Mara EIAR Annex 14.2.1 – Ornithology Displacement Data	407KB
14c	Spiorad na Mara EIAR Annex 14.2.2 – SeabORD Report	697KB
14c	Spiorad na Mara EIAR Appendix 14.3 – Collision Risk Model Technical Report	1.01MB
14c	Spiorad na Mara Appendix 14.4 Migratory Collision Risk Modelling Report	846KB
14c	Spiorad na Mara EIAR Appendix 14.5 – EIA Population Viability Analysis Report	6.58MB
14c	Spiorad na Mara EIAR Appendix 14.6 – EIA Ornithology Consultation	701KB
15a	Spiorad na Mara EIAR Chapter 15 – Offshore Archaeology and Cultural Heritage	1.28MB
15b	Spiorad na Mara EIAR Chapter 15 Offshore Archaeology and Cultural Heritage – Figures	10.9MB
15c	Spiorad na Mara EIAR Appendix 15.1 – Marine Archaeology Desk Based Assessment	902KB
15c	Spiorad na Mara EIAR Annex 15.1.1 – Historic Environment Gazetteer	318KB
15c	Spiorad na Mara EIAR Annex 15.1.2 – Archaeological Assessment of Geophysical and Hydrographic Data	9.710MB
15c	Spiorad na Mara EIAR Annex 15.1.3 – Stage 1 Geoarchaeological Review of Geotechnical Data	995KB
15c	Spiorad na Mara EIAR Appendix 15.2 – Outline Cultural Heritage Settings Assessment	4.851MB
15c	Spiorad na Mara EIAR Annex 15.2.1 – Heritage Wirelines	5.67MB
16a	Spiorad na Mara EIAR Chapter 16 – Shipping and Navigation	1.284MB
16b	Spiorad na Mara EIAR Chapter 16 – Shipping and Navigation – Figures	21.686MB
16c	Spiorad na Mara EIAR Appendix 16.1 – Navigational Risk Assessment	13.767MB
17a	Spiorad na Mara EIAR Chapter 17 – Military and Civil Aviation	975KB
17b	Spiorad na Mara EIAR Chapter 17 Military and Civil Aviation – Figures	7.42MB
17c	Spiorad na Mara EIAR Appendix 17.1 – Airspace Analysis and Radar Modelling	39.755MB
17c	Spiorad na Mara EIAR Appendix 17.2 – Instrumental Flight Procedures	1.505MB
18a	Spiorad na Mara EIAR Chapter 18 – Seascape Landscape and Visual Impact Assessment	2.581MB
18c	Spiorad na Mara EIAR Appendix 18.1 – SLVIA Methodology	843KB
18c	Spiorad na Mara EIAR Appendix 18.2 – Assessment of Effects on Viewpoints	1.293MB
18c	Spiorad na Mara EIAR Appendix 18.3 – Assessment of Effects on Coastal Character	777KB
18c	Spiorad na Mara EIAR Appendix 18.4 – Assessment of Effects on Special Landscape Qualities	1.277MB
18c	Spiorad na Mara EIAR Appendix 18.5 Visibility of Aviation Warning Lights	1.521MB
18c	Spiorad na Mara Appendix 18.6 SLVIA Figures & Photomontage Visualisations (in three parts below)	2.82GB
	PART 001 Appendix 18.6 SLVIA Figures & Photomontage Visualisations, volume 2c	943.4MB
	PART 002 Appendix 18.6 SLVIA Figures & Photomontage Visualisations, volume 2c	1.442GB
	PART 003 Appendix 18.6 SLVIA Figures & Photomontage Visualisations, volume 2c	379.225MB
19a	Spiorad na Mara EIAR Chapter 19 – Offshore Airborne Noise	1.44MB
19b	Spiorad na Mara EIAR Chapter 19 Offshore Airborne Noise – Figures	2.43MB
19c	Spiorad na Mara EIAR Appendix 19.1 – Policy, Guidance and Legislative Context	465KB
19c	Spiorad na Mara EIAR Appendix 19.2 – Noise Modelling and Prediction	892KB
19c	Spiorad na Mara EIAR Appendix 19.3 – Baseline Noise Survey	5.58MB
19c	Spiorad na Mara EIAR Appendix 19.4 – Wind Shear Correction	317KB
19c	Spiorad na Mara EIAR Appendix 19.5 – Baseline Noise Conditions – All Wind Directions	2.04MB
19c	Spiorad na Mara EIAR Appendix 19.6 – Baseline Noise Analysis Comparison – Option 1 vs Option 2	1.32MB
19c	Spiorad na Mara EIAR Appendix 19.7 – Baseline Noise Conditions – Directional Split	4.28MB
19c	Spiorad na Mara EIAR Appendix 19.8 – Existing Wind Turbine Contribution Check	1.11MB
19c	Spiorad na Mara EIAR Appendix 19.9 – Modelled Receptor Noise Levels	529MB
19c	Spiorad na Mara EIAR Appendix 19.10 – Noise Limits	2.01MB
19c	Spiorad na Mara EIAR Appendix 19.11 – Cumulative Wind Turbine Noise Assessment	1.51MB
20a	Spiorad na Mara Chapter 20 Other Sea Users and Recreation	2.56MB
21a	Spiorad na Mara EIAR Chapter 21 – Commercial Fisheries	2.129MB
21b	Spiorad na Mara EIAR Chapter 21 Commercial Fisheries- Figures	21.544MB
21c	Spiorad na Mara EIAR Appendix 21.1 – Commercial Fisheries Baseline Characterisation Report	132.8MB
22a	Spiorad na Mara Chapter 22 Offshore Human Health	1.11MB
23a	Spiorad na Mara EIAR Chapter 23 – Combined Effects Assessment	983KB
24a	Spiorad na Mara EIAR Chapter 24 – Summary of Likely Significant Residual Effects	1.458MB
25a	Spiorad na Mara EIAR Chapter 25 – Summary of Offshore Mitigation_Statement of Offshore EIA Commitments	715KB

Volume 3 - Offshore Management Plans

Title	File size
Spiorad na Mara EIAR Outline Offshore Environmental Management Plan	4.06MB
Spiorad na Mara EIAR Fisheries Mitigation Monitoring and Communication Plan	1.75MB
Spiorad na Mara EIAR Volume 3 Appendix A Outline Protocol for Archaeological Discoveries	551KB
Spiorad na Mara EIAR Outline Offshore Written Scheme of Investigation	482KB
Spiorad na Mara EIAR Marine Pollution Contingency Plan	463KB
Spiorad na Mara EIAR Offshore Invasive Non-Native Species Management Plan	508KB
Spiorad na Mara EIAR Outline Marine Mammal Mitigation Protocol	482KB
Spiorad na Mara EIAR Outline Navigational Safety and Vessel Management Plan	553KB
Spiorad na Mara EIAR Outline Lighting and Marking Plan	495KB
Spiorad na Mara EIAR Outline Offshore Operation and Maintenance Plan	371KB

Accompanying Information

Reference	Title	File size
RIAA	Spiorad na Mara Offshore Wind Farm – Report to Inform Appropriate Assessment	7.633MB
RIAA	Spiorad na Mara RIAA Appendix A – Confirmed Screening Conclusions	1.066MB
RIAA	Spiorad na Mara RIAA Appendix B – Information on Designated Sites	3.729MB
RIAA	Spiorad na Mara RIAA Appendix C – Consultation	954KB
RIAA	Spiorad na Mara RIAA Appendix D – Offshore Ornithology Apportioning	1.083MB
RIAA	Spiorad na Mara RIAA Annex D.1 – Individual Colony Apportionment (Breeding season)	785KB
RIAA	Spiorad na Mara RIAA Appendix E – HRA Population Viability Analysis Report	15.536MB
RIAA	Spiorad na Mara RIAA Appendix F – Environmental Impact Assessment Definitions	294KB
RIAA	Spiorad na Mara RIAA Appendix G – Ornithology In-Combination Data Tables	6.859MB
Derogation	Spiorad na Mara Offshore Project: HRA Derogation Case	1.30MB
Derogation	Spiorad na Mara Offshore Project: HRA Compensation Plan Roadmap	795KB

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