cumulative impacts are considered to be broadly acceptable for the East Anglia THREE site and therefore within ALARP parameters with no residual impacts.
50.
Transboundary impacts are considered within the assessment, although given the inherently international nature of shipping, this is integral to the assessment to some degree. It is noted that a number of transboundary routes stay within the established shipping routes and therefore are not impacted by the proposed project. There is potential for transboundary ports to be impacted by offshore developments, however due to the distance from the coastline and the assessment of routes transiting through the East Anglia THREE site impacts are considered to be within tolerable limits.
30.2.10 51.
Chapter 16 Aviation and MOD
The aviation interests considered of relevance to the East Anglia THREE project include those of the United Kingdom (UK) Civil Aviation Authority (CAA), Ministry of Defence (MoD), regional airports, local aerodromes and NATS (that currently comprises NATS (En-Route) plc [NERL] and NATS (Services) Limited [NSL]), other UK aviation stakeholders and, where necessary, overseas authorities. The assessment includes a description of the potential effects on aviation activities with respect to effects on radar and physical effects in both UK and overseas airspace.
52. No significant impacts were identified for the construction and decommissioning phases following implementation of appropriate mitigation (i.e. ensuring that charting, marking and lighting of all wind turbines is consistent with UK regulations). Potential impacts include those upon helicopter operations whereby embedded mitigation and pilot compliance with CAA regulations would negate any potential impact. Wind turbines would cause permanent interference on civil and military radars during the operational phase and therefore the assessment recommends that a technical solution for those radar facilities will be required at-source in order to mitigate the impact fully.
53.
Potential for cumulative impacts with other UK offshore and onshore windfarms were considered. The proposed East Anglia FOUR project would be subject to the same at-source mitigation as East Anglia THREE to mitigate the impact fully. Due to the distances between other project and the East Anglia THREE site, there would be no other cumulative impacts on radar. Impacts upon receptors such as helicopter operations would be avoided through embedded mitigation and compliance with CAA regulations.
54.
Transboundary impacts with the Netherlands were considered and the assessment concludes that there would be no significant impacts.
Preliminary Environmental Information May 2014
East Anglia THREE Offshore Windfarm
Chapter 30 Summary and Conclusion Page 12
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