General – Noise Reduction
Convinced of the need to take positive action to preserve the marine environment, Equinor, EDF Renouvelables and TotalEnergies have decided to join forces to support the development of this promising new solution by signing a Joint Industrial Partnership (JIP).
For the past 6 years, the French company GREENOV has been developing the SubSea Quieter, an underwater noise mitigation system designed to help coastal and offshore marine contractors reduce their impact on underwater ecosystems.
The development of the SubSea Quieter is supported by two European programs (LIFE, EIC Accelerator) and by the French organization ADEME (concours i-NOV). Reducing underwater noise: a priority for protecting our oceans!
Underwater noise travels 4 times faster than air, and much further. That’s why most marine species use sound to find their bearings, to find preys, and to communicate over long distances.
The SubSea Quieter system is an underwater noise mitigation system based on a multi-layer membrane into which a fine layer of air is injected to create a barrier to sound waves.
The system aims to reduce underwater noise generated by pile-driving operations and also helps limit the spread of turbidity during the works. Particular innovative, this system aims to provide acoustic reduction performance – between 10 and 35 decibels depending on frequencies – independent of water depth and within a wide range of water currents, thanks to a modular architecture made possible by its panel construction.