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SEALENCE · Project

Low-Cost Underwater Noise Reduction System for Marine Construction and Energy Projects

environmentPilotedTRL 7

Imagine putting a giant, air-filled bubble wrap sleeve around a construction pile before hammering it into the ocean floor. This special fabric skin traps the loud noise and keeps mud from spreading, protecting whales and fish. It works like a soundproof muffler for the ocean, making heavy construction much quieter for marine life.

By the numbers
220dB
Maximum underwater noise level from pile driving
5 to 10
Times cheaper than existing NMS
3
Number of patents
5
Years of R&D investment
The business problem

What needed solving

Pile driving for offshore wind and harbors creates noise up to 220dB, killing marine life and triggering fierce opposition from NGOs and fishing associations. Existing mitigation tools are too expensive, complex, and inefficient to be widely adopted.

The solution

What was built

A 3D PVC coated inflatable membrane system available as a long-term 'Blue Shield' wall or a short-term 'Pile Driving' sock.

Audience

Who needs this

Offshore wind farm developersMarine civil engineering companiesPort and harbor authoritiesEnvironmental compliance officers
Business applications

Who can put this to work

Offshore Wind Energy
enterprise
Target: Wind farm developers

If you are a wind farm developer dealing with strict noise regulations and NGO opposition — this project developed the SSQ Pile Driving system that is up to 5 to 10 times cheaper than existing noise mitigation systems.

Maritime Civil Engineering
mid-size
Target: Harbor construction firms

If you are a construction firm dealing with long-term harbor works that disturb local fisheries — this project developed the SSQ Blue Shield which creates a protective wall to confine noise for several months.

Environmental Consulting
SME
Target: Marine impact assessment firms

If you are a consultant dealing with the New European Biodiversity Strategy for 2030 — this project developed a 3D PVC fabric membrane that reduces noise levels which can otherwise reach 220dB.

Frequently asked

Quick answers

How does the cost compare to existing solutions?

The SSQ Pile Driving system is designed to be up to 5 to 10 times cheaper than existing Noise Mitigation Systems.

Is the technology protected by intellectual property?

Yes, the technology is 3 times patented.

Can this be deployed at scale in difficult ocean conditions?

The system is designed for adaptability to severe site conditions, including waves, currents, and depth, without requiring extra vessels or cranes.

Which regulations drive the need for this product?

The system addresses the MSFD from 2008 and the New European Biodiversity Strategy for 2030.

How is the system integrated into the construction process?

It uses a clever manutention system to deploy the membrane as a sock closest and around the pile for a couple of hours during driving.

Consortium

Who built it

The project is led by GREENOV-ITES, a French SME, with a small 2-partner consortium consisting entirely of SMEs. This lean structure suggests a high degree of agility and a direct focus on commercialization rather than academic research, with a 50% industry ratio.

How to reach the team

Contact GREENOV-ITES in France for licensing or procurement of SSQ systems.

Next steps

Talk to the team behind this work.

Contact us to find similar low-cost acoustic mitigation technologies for marine energy.

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