Environmental Statement
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Environmental Statement INFORMATION SHEET Project name: Beatrice Wind Farm Demonstrator Project DTI Project Reference: D/2875/2005 Type of project: Demonstration of offshore wind farm Undertaker name: Talisman Energy (UK) Limited Address: 163 Holburn Street Aberdeen AB10 6BZ Licensees/Owners: Talisman Energy (UK) Limited Anticipated commencement of works: May 2006 Short description of project: Proposed installation and operation of two stand- alone wind turbine generating units (WTGs) to provide electrical power to the Beatrice platforms. The WTGs will be supported on small steel jackets piled into the seabed, and will be 88m high with blades 63m long. The WTGs will be linked to the Beatrice AP platform by a buried umbilical containing the electrical cable. Date and reference number of any Beatrice Decommissioning Programme earlier Statement related to this RDBF/003/00006C-01 and 02 project: December 2004 Significant environmental impacts Underwater noise from piling identified: Potential interaction with birds at sea Statement prepared by: Talisman Energy (UK) Limited – 1– TALISMAN ENVIRONMENTAL STATEMENT ACKNOWLEDGEMENTS Talisman is grateful for the support, advice and comments received from all organisations and individuals during the consultation programme. Thanks are due to the Moray Firth Partnership for help in organising major stakeholder meetings, and to the University of Aberdeen Lighthouse Field Station for access to unpublished data. This Environmental Statement was prepared with support from BMT Cordah Limited. Design and production by The Big Picture. – 2– CONTENTS CONTENTS 1 NON-TECHNICAL SUMMARY . .9 1.1 Introduction . .9 1.2 Description of proposed project . .10 1.3 Environmental setting for the proposed WTGs . .11 1.4 Consultation programme . .12 1.5 Scoping the potential impacts of the Beatrice Wind Farm Demonstrator Project . .13 1.6 Effects on marine mammals of underwater noise from piling . .13 1.7 Effects of the presence of the WTGs on birds . .15 1.8 Visual impact of Demonstrator Project on landscape and seascape . .16 1.9 Effects on the seabed . .20 1.10 Effects on aviation and telecommunications . .21 1.11 Collision risk to commercial vessels and fishing boats . .22 1.12 Effects of electromagnetic fields . .24 1.13 Overall effects of the proposed Demonstrator Project on Natura 2000 sites . .25 2 INTRODUCTION . .31 2.1 Background . .31 2.2 Scope of the Environmental Impact Assessment and Environmental Statement . .32 2.3 Purpose of the Environmental Statement . .33 2.4 Structure of the Environmental Statement . .33 2.5 Legislation . .36 2.6 The Demonstrator Project, its purpose and potential benefits . .37 2.7 Alternatives to the Demonstrator Project . .38 3 DESCRIPTION OF THE DEMONSTRATOR PROJECT . .41 3.1 Site selection . .41 3.2 Components of the WTGs . .43 3.3 Installation of the umbilicals and WTGs . .50 4 DESCRIPTION OF THE ENVIRONMENTAL SETTING . .65 4.1 Designated sites and environmental sensitivity . .65 4.2 Physical and chemical environment . .73 4.3 Seabed environment . .83 – 3– TALISMAN ENVIRONMENTAL STATEMENT 4.4 Pelagic environment . .87 4.5 Finfish and shellfish . .88 4.6 Marine mammals . .95 4.7 Seabirds . .101 4.8 Bird monitoring programme at the Beatrice platform . .108 4.9 Socio-economic environment . .121 4.10 Shipping and fishing vessel activity . .128 4.11 Oil and gas developments . .128 4.12 Other commerce and users of the sea . .128 4.13 Tourism and leisure . .132 5 PROJECT CONSULTATION . .135 5.1 Introduction . .135 5.2 Preliminary scoping study . .135 5.3 Consultation programme . .135 6 SCOPING POTENTIAL ENVIRONMENTAL IMPACTS . .153 6.1 Introduction . .153 6.2 Method used to scope potential impacts . .153 6.3 Results of the risk assessment . .154 6.4 Summary of the risk assessment . .154 6.5 Justification of “not significant” risks . .157 7 EFFECTS OF ASSEMBLY AT ONSHORE LOCATION . .169 7.1 Status of the site . .169 7.2 Potential impacts and main receptors . .169 7.3 Magnitude of effects . .170 7.4 Mitigation and monitoring . .170 7.5 Further research proposed . .170 8 EFFECTS ON THE SEABED AND MARINE ECOSYSTEMS . .175 8.1 Effects on sediments and benthic communities . .175 8.2 Effects of electromagnetic fields . .177 8.3 Effects on commercial stocks of fish and shellfish . .180 – 4– CONTENTS 9 POTENTIAL IMPACTS OF UNDERWATER NOISE AND VIBRATION . .185 9.1 Introduction . .185 9.2 Sources of underwater noise from the Demonstrator Project and key receptors . ..