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adbm nmsVan Oord and AdBm Technologies have demonstrated the new AdBm Noise Mitigation System (NMS), with support from TNO. The NMS reduces underwater noise resulting from offshore pile driving wind turbine foundations. This means less disturbance for marine mammals near the construction site.
The NMS uses special acoustic resonators designed and produced by AdBm Technologies which reduce the noise from pile driving. As a result of this technology, specific frequencies can be targeted which produce the most noise. Furthermore, waves and currents have little or no effect on the NMS thanks to its open design. The NMS deployment system was designed and built at Van Oord. It works as it were window blinds that can be put up and down. The development of the system and the related trials were funded through a Renewable Energy Grant from RVO and supported by TKI Wind op Zee.
The test result showed that the NMS, in combination with a Big Bubble Curtain (BBC), meets the Dutch and Belgian standards for noise emissions at sea.
Van Oord will be commissioning the NMS during the installation of the Borssele offshore wind farm which lies approximately 20 kilometres of the coast of Walcheren in the Province of Zeeland, The Netherlands. The NMS will be used during the construction of plots 3, 4 and 5.
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