The Fraunhofer Institute for Wind Energy Systems (IWES) recently conducted a boulder detection campaign in the Baltic Sea on behalf of Baltic Power, focusing on the foundations for planned wind turbines. Utilising the Manta Ray G1 measuring system, IWES not only detected boulders up to 100 meters below the seafloor but also surveyed shallower objects along cable corridors for the first time.Baltic Power, a joint venture between Orlen and Northland Power, aims to install an offshore wind farm with a total capacity of up to 1.2GW, comprising 76 wind turbines and two offshore substations (OSS). The Manta Ray G1 system includes a towed array equipped with special seismic sensors (hydrophones) and positioning systems, enabling the detection of rocks in the sub-seafloor through sound wave reflection and diffraction.
(© image: Frank S. Bauer)
