EIA topic


Change in project parameters (as applicable to each topic)


Potential for LFAC export cables


Key changes in effect/s footprint of habitat loss


There are differences in the effects on EMF from alternating current


Decommissioning


As above – limited changes in infrastructure to be removed at decommissioning


Marine Mammal Ecology Construction


As cables will be left in situ, the only additional impact is from the removal of one additional platform


There are limited changes in the infrastructure required – in the worst case one additional offshore platform.


Phasing would mean that piling activities would potentially be undertaken over a longer period


Phasing requires more vessel movements for construction


Operation


No relevant changes for operation


Under the worst case there is one additional platform, therefore a slight increase in magnitude of effect.


The period over which piling will occur will change.


Likely change in impact significance


impacts.


EMF effects will be limited under either the LFAC or HVDC solution, there will be no change in impact significance


As above, limited changes in magnitude of effect will not change the significance of impacts.


The windfarm capacity remains up to 1200MW therefore the worst case scenarios previously considered (in terms of piling hammer energy and number of piling events) are unchanged, impact significance will not change


There will be a greater risk of collisions with more vessel movements


None


Standard mitigation will apply the risk will not increase.


No change


The ES will update the assessment for the revised parameters.


Phasing will be discussed for construction impacts


The assessment will be updated to reflect any changes in piling timings (including potential cumulative impacts)


Comment


Phase III Report June 2015


East Anglia THREE Offshore Windfarm Page 23


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49