On July 30, the last suction bucket jacket foundation landed on the seabed at the Borkum Riffgrund 2 offshore wind farm in Germany. With this milestone, GeoSea completes the installation of 20 suction bucket jackets.
Borkum Riffgrund 2, owned by Ørsted and Global Infrastructure Partners, will feature 56 Vestas turbines of 8 MW and have a total capacity of 450 MW – enough to supply electricity to approximately 460,000 households.
GeoSea’s scope involved the transport and installation of 20 suction bucket jackets, each weighing 950 tonnes and having a height of 58 m.
This is the first time Ørsted has utilised this type of foundation at one of its wind farms on such a large scale. In 2014, GeoSea installed the first ever suction bucket jacket at Ørsted's wind farm Borkum Riffgrund 1.
The suction bucket structure becomes firmly embedded in the seafloor by vacuum pressure, eliminating the need for hammering and significantly reducing noise during installation.
GeoSea’s ‘Innovation’ is now being mobilised in Flushing to head to the Hornsea Project One wind farm in the UK, where GeoSea is currently installing 174 foundations.
About DEME Group
The Belgian dredging, environmental and marine engineering group DEME is an international market leader for complex marine engineering works.
Building on more than 140 years of experience and know-how, DEME has organically moved into several related sectors, such as the financing of marine engineering and environmental projects, executing complex EPCI related marine engineering projects including civil engineering works, the development and construction of renewable energy projects, providing services for the oil, gas and energy sector, the decontaminating and recycling of polluted soils and silts, the harvesting of marine resources, etc.
Thanks to an integrated company structure, DEME strongly emerges as a 'global solutions provider' which offers its clients overall solutions. DEME has the most modern, high-tech and versatile fleet.
DEME Group has 4,900 employees worldwide and achieved a turnover of 2.37 billion euros in 2017.