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Beeston, United Kingdom
Positive sustainability aspect
Passage of aquatic species Recreational fishing is an important activity on the River Trent. By working with local communities and environmental organisations maintaining fish stocks was identified as a key concern for many stakeholders. To help to protect the environment and ecology of the river it was necessary for the developer to consider the impact of the project on the rivers fish population. The scheme employs an underwater acoustic system to provide a barrier to protect fish from the workings of the hydro generator. The 80 metre long acoustic screen provides a wall of sound at a frequency that fish dislike and guides them past the power scheme's turbines. The sound is contained in a curtain of air bubbles that create a guiding wall.
This scheme was built adjacent to a navigation weir on the River Trent in Nottinghamshire in the UK. It is a low head scheme, and has a rated capacity of 1.3 MW. It was built by a renewable energy company, Hyder, under the UK’s Non Fossil Fuel Obligation contract.
