Plans to safeguard marine life near the Hinkley Point C nuclear power plant have taken a creative turn, with EDF Energy proposing a groundbreaking underwater acoustic deterrent system, affectionately dubbed the “fish disco.” This initiative is expected to prevent around 90% of fish from being drawn into the plant’s water intake pipes, at a cost of approximately £700 million.
A Novel Approach to Marine Protection
Research conducted by Swansea University has indicated that the acoustic deterrent system, which utilises over 300 underwater speakers to emit sound pulses, effectively keeps fish away from the plant’s water intake. This innovative solution aims to mitigate the environmental impact of the facility, which will draw water from the River Severn to cool its reactors.
EDF Energy, the company behind the Hinkley Point C project in Somerset, stated that this initiative represents a significant commitment to marine conservation, projecting the preservation of around 44 tonnes of fish per year. This figure is comparable to the annual catch of a small fishing vessel.
Financial Implications
The anticipated £700 million expenditure for the fish disco constitutes about 1.5% of the overall budget for the £46 billion project, which is set to be the first new nuclear power plant in the UK in a generation. Although this is a substantial investment, EDF has clarified that the costs will be absorbed by the company rather than passed on to consumers through electricity bills, thanks to a set return agreement under its subsidy contract.
In the past, EDF had suggested alternative measures to protect marine life, such as constructing salt marshes. However, the success of the acoustic deterrent system means that the company may not need to pursue these alternatives, which would have required the creation of 900 acres of salt marsh as environmental compensation.
Encouraging Results from Research
The initial findings from the study are promising. Dr David Clarke, a fisheries scientist and marine ecologist at Swansea University, noted that the deterrent system is performing even better than anticipated. His research indicated that only one of the tagged twaite shad fish approached the intake pipes when the system was active, compared to 14 fish that came close when the deterrent was off. Further good news has emerged regarding salmon populations, which appear to largely avoid the plant’s intake area.
Chris Fayers, head of environment at Hinkley Point C, expressed optimism about the system’s effectiveness, stating that it allows the project to fulfil all planning obligations related to marine life protection.
Regulatory Review Ahead
As the research progresses, the findings will be submitted to the Marine Management Organisation for regulatory evaluation later this year. EDF Energy remains committed to ensuring that Hinkley Point C not only generates reliable, low-carbon electricity but also prioritises the protection of the local ecosystem.
Why it Matters
This innovative approach to fish protection at Hinkley Point C sets a significant precedent for future energy projects, highlighting the importance of integrating environmental considerations into industrial development. By investing heavily in technologies that protect marine life, EDF Energy is not only enhancing the sustainability of its operations but also contributing to broader conservation efforts. This initiative could inspire similar projects around the world, promoting a harmonious balance between energy production and environmental stewardship.
