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GBM Works and Ecowende action silent monopiles installation Hollandse Kust West

4C Offshore | Mark Casey
By: Mark Casey 12/04/2024 Ecowende

GBM Works and Ecowende have signed a contract for the installation of three monopiles in the Hollandse Kust West (HKW) Site VI offshore wind farm using GBM’s noise reducing technology, the Vibrojet®.

This innovative technique is based on the combination of vibrations on the top of the monopile with GBM’s patented jetting technology inside of the monopile. This combination of vibrations and jetting reduces resistance, making the installation more efficient and more silent, minimizing the impact to marine life. Ecowende confirms its position as supporter and front runner of innovative techniques, on its mission to build the most ecological wind farm yet.

Arnold Reijnders, Engineering Manager at Ecowende said, We are enthusiastic to work closely together with GBM to develop their fixed Vibrojet® system for actual use during the construction of our windfarm. We hope we are able to deliver an important contribution in making the next generation windfarms more eco-friendly.

Besides the ecological benefit of being more silent, there are several operational benefits. In comparison to the traditional impact hammer, the Vibrojet® allows monopiles to be installed quicker. In comparison to the Vibro-hammer only, the Vibrojet® allows monopiles to be installed deeper.

Marcelo Werneck, Business Development Director at GBM Works added, Hollandse Kust West represents our entrance to the offshore installation market and we are proud to contribute to Ecowende on its ecological ambitions. By installing the three monopiles, we will prove the value of Vibrojet® installations, an important step towards broader application of the technology on future projects.”

For more information about offshore wind farm projects across the globe, click here.


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