Installing monopile foundations with even less noise on Gode Wind 3 wind farm

The groundbreaking technology of Ørsted, Danish leader in offshore renewables, consists of a patented jetting technology attached to the monopile. This lowers the resistance of the surrounding sandy soil, allowing the foundation to sink into the seabed. The installation method thus completely removes the need for conventional impact hammering.

In close collaboration with Ørsted and Aarsleff, we successfully carried out the installation method on three monopiles on Gode Wind 3 last winter, with promising results. With a reduction of 34 decibels compared to the most commonly used installation method, noise levels were reduced by over 99%. Following other noise mitigation technologies applied on Gode Wind 3, such as bubble curtains and the Hydro Sound Damper net, Ørsted takes protecting marine life one step further. Something we are happy to contribute our knowledge and skills to.

So far, our heavy-lift vessel Les Alizés installed around 75% of the monopiles for Gode Wind 3 and Borkum Riffgrund 3. When operational, these wind farms will generate enough electricity to power 1.2 million German households.