nuclear-news

‘Millions of fish could die’ under current Hinkley Point C plan

Environmental advocates demand EDF takes action

By Lewis Clarke, Somerset Live , 22nd Oct 2024

A solutions-focussed, scientifically backed answer to the critical environmental situation at Hinkley Point C has been released by a coalition of scientists, engineers, and innovators, showing that the Acoustic Fish Deterrent (AFD) is both a necessary and feasible requirement for the builders of Hinkley Point C – EDF Energy – to apply.

An AFD Delivery Report, launched on October 16, gives evidence that the AFD can be installed safely and effectively in the Severn Estuary. It highlights the innovations in technical ability, technology, logistics, and science which will reduce maintenance times from 72 days per year down to just 19. The report debunks common misconceptions about noise levels, diving time, and more with scientifically backed evidence, and urges EDF to ensure the system is installed, tested, and operational before the station starts to abstract cooling water.

In light of the critical environmental situation at Hinkley Point C, a parliamentary debate led by Sir Ashley Fox MP was held last week on Wednesday 9th October 2024. During the debate, Sir Ashley Fox addressed that EDF Energy’s mosaic of mitigation measures, specifically the proposed saltmarsh plans, are a completely illogical choice.

The saltmarsh plans are a proposed alternative to the Acoustic Fish Deterrent (AFD), a system designed to protect aquatic life by deterring fish from entering the cooling systems of the power plant, and was included in the initial design plans of Hinkley Point C.

The AFD system remains mandated in the Development Consent Order (DCO). It is also considered best practice for screening estuarine intakes in the UK by the Environment Agency, and has been scrutinised by a Welsh Government Report (2021), a Public Inquiry (2022), and the ruling by Secretary of State Kwasi Kwarteng (2022) which all stated that the AFD must be installed. EDF Energy has been working to remove this vital environmental protection measure for nearly eight years, arguing on the grounds of health and safety concerns, noise pollution and effect on mammals, and further delay of the completion of Hinkley Point C.

The AFD Delivery Report provides a solution to the current impasse, but without the AFD, it has been warned by the Welsh Government Commission that approximately 182 million fish would be killed annually, including sensitive species like shad, sprat, Atlantic salmon, and herring.

In the AFD Delivery Report, Professor Mark Everard, University of West of England says “There can in my scientific view be no justification for removal of AFD. It makes absolutely no sense to permit very substantial damage to marine biodiversity and hope then that modest mitigation entailing a degree of recruitment only of species reliant on the saltmarsh can offset it.

“Cost reduction is cited by EDF as one element of its plan to remove the mandated AFD and would appear to be its principal consideration, but one that obviously overlooks the vital purpose of deflecting fish from the intake. Ideally, saltmarsh restoration should be implemented ADDITIONALLY to the AFD to mitigate the still substantial likely entrainment of multiple life stages of fish and invertebrates, even with deflection from the intake.”

South Gloucestershire Council understands that EDF will make another application to the Secretary of State to remove the requirement for an AFD in the new year, and so has written to the Secretary of State for Energy, Security & Net Zero, the Rt Hon Ed Milliband, requesting that he upholds the existing requirement to install an AFD.

Councillors Maggie Tyrrell and Ian Boulton, said in their letter to the Secretary of State: “We are writing to express our gravest concern regarding the scale of impact on the migratory fish populations of the Severn Estuary Special Area of Conservation (SAC) which will result from the massive water abstraction at Hinkley Point C of 120,000 litres of seawater a second for 60 years once the power station is operational.

“This impact would be made significantly worse by the proposed application for a change to the 2013 Development Consent Order to remove the required Acoustic Fish Deterrent (AFD).

“A Welsh Government report on the AFD cites evidence that removal of the AFD would capture at least 182 million fish per year, a significant proportion of which would be killed. Put simply, removing the AFD would cause critical levels of wildlife destruction.”

The council is also concerned that EDF are approaching local landowners about a plan to create new salt marshes, which they would propose as alternative compensation habitat for fish in place of the AFD. It is understood that local landowners are deeply concerned about the idea, which has been turned down in other areas when raised by EDF, and experts query EDFs claims that new saltmarshes would offer suitable habitat for fish killed by the water intake of the new power station.

The council’s letter also highlighted that even with the AFD, that compensation will still be needed as some fish will still be drawn into the intake and killed. Alongside the letter, the Secretary of State was also provided with information about priorities to deliver improvements for fish passage in the Bristol Avon river and Coastal Catchments……………………
https://www.somersetlive.co.uk/news/somerset-news/millions-fish-could-die-under-9641529

October 24, 2024 - Posted by Christina Macpherson | oceans, UK