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11.3.3 Embedded Mitigation Specific to Fish and Shellfish Ecology 9. Where relevant, mitigation measures are incorporated as part of the project design process and are referred to as “Embedded mitigation”. In order to minimise the potential impacts of the proposed East Anglia THREE project on fish ecology, EATL has committed to the following:





The inter-array, HVAC export cables between collector and converter stations and the HVDC export cables would be armoured, and buried in the sea bed where practicable from 0.5m to 5m in depth. Appropriate cable protection methods would be used where burial is not possible.





During construction, overnight working practices would be employed so that construction activities would be 24 hours, thus reducing the overall period for potential impacts to fish communities near the East Anglia THREE site.





Soft start pile driving would be implemented to enable mobile species to move away from the area of highest noise impact.


11.4 Assessment Methodology


11.4.1 Guidance 10.


The assessment of potential impacts on fish and shellfish ecology has been undertaken with specific reference to the relevant National Policy Statement (NPS). Those relevant to the proposed East Anglia THREE project are as follows:


• • 11. 12.


Overarching NPS for Energy (EN-1) (Department of Energy and Climate Change (DECC) 2011a); and


NPS for Renewable Energy Infrastructure (EN-3), July 2011.


The specific NPS (EN-3) assessment guidance relevant to fish and shellfish ecology are summarised in Appendix 11.2


In addition to the NPS guidance, the following documents have been used to inform the assessment of potential impacts of the East Anglia THREE project on fish and shellfish ecology:


• •


Review of Cefas monitoring programs;


Guidelines for ecological impact assessment in Britain and Ireland: Marine and coastal. IEEM (2010);


Preliminary Environmental Information May 2014


East Anglia THREE Offshore Windfarm


Chapter 11 Fish and Shellfish Page 18


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