Dutch survey specialist Fugro has secured a contract from German transmission system operator 50Hertz to survey and clear unexploded ordnance along the routes of two offshore wind grid connections in the North Sea.
The contract covers the LanWin3 and LanWin6 high-voltage direct current links, each designed to transmit up to 2GW of offshore wind power to Germany’s electricity grid, providing a combined capacity of 4GW.
Offshore surveys are scheduled to begin in the second quarter of 2027, covering 200 m-wide corridors along both cable routes.
Fugro will deploy two Geowing magnetic gradiometer systems, each equipped with ten sensors, to detect potential unexploded munitions and other objects on or beneath the seabed. The resulting data will identify targets requiring further investigation before cable installation.
Follow-up activities in 2028 will include remotely operated vehicle inspections, identification of suspicious objects, and debris removal. Fugro will also support the clearance and disposal of confirmed unexploded ordnance.
Ronny Bøhn, Fugro’s director of marine geophysics for Europe and Africa, said early seabed investigations would help 50Hertz better understand potential hazards and manage risks throughout the cable installation programme.
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Bojan Lepic
Bojan is an English language professor turned journalist with years of experience covering the energy industry with a focus on the oil, gas, and LNG industries as well as reporting on the rise of the energy transition. Previously, he had written for Navingo media group titles including Offshore Energy Today and LNG World News. Before joining Splash, Bojan worked as an editor for Rigzone online magazine.
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