AqualisBraemar LOC Gets to Work on DolWin5

London-based consultancy AqualisBraemar LOC has secured a contract to provide marine warranty services for the export cable installation of the DolWin5 offshore grid connection project in Germany.


The scope of work covers all marine transportation and installation operations relating to the laying of export cables, as well as the suitability surveys of all construction and support vessels relating to the warranted operations.

AqualisBraemar LOC’s office in Hamburg has been appointed under a framework agreement with TenneT, awarded in autumn 2020, making the UK company pre-vetted providers of marine warranty services to support the realization of a several offshore grid connection projects.

With DolWin5, TenneT implements an HVDC transmission system in the German part of the North Sea.

The platform will connect the Borkum Riffgrund 3 offshore wind farm to the extra-high-voltage grid onshore. The cable route runs about 100 kilometers offshore through the North Sea, Nearshore Area and Ems Wadden Sea and a further 30 kilometers onshore.

Once commissioned, DolWin5 will deliver 900 MW of electricity.