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Marine Civils by David Foxwell

HSS Turns on the Light at Samso Wind Farm

01 Mar 2003

Electricity produced by the recently completed offshore wind farm at Samso, Denmark, was connected to the national grid in Denmark for the first time last month, following the official handing over of the new facility by the contractors responsible for building it.

HSS and Dredging International used their purpose-built jack-up Vagrant to install the wind turbines on the Samso offshore wind farm.

The 23MW offshore wind farm was constructed by Hydro Soil Services (HSS) and Dredging International in Belgium, and specialist contractor Smet-Boring.

The total of eleven 2.3MW 'Bonus' type wind turbines installed - which are among the largest that are available - were installed on the project.

Construction of the new facility was completed in just two months, with ABB Group responsible for the cabling connecting the wind farm to the grid. The eleven wind turbines are installed in a straight line, 300m apart, between 3.5 and 7km offshore in water that is between 12m and 18m deep. To install the turbines, Dredging International and HSS used their newly built platform Vagrant, a jack-up with a leg length of 57.5m.

Samso wind farm is the sixth 'megawatt' wind farm to become operational off the coast of Europe. The others are:

Utgrunden (10.5 MW) and Yttre Stengrunden (10MW) in Sweden;

Middelgrunden (20MW) and Horns Rev (160MW) in Denmark;

and Blyth (4MW) in Great Britain.

Dredging International and HSS were also involved in the construction of three of these wind farms: Utgrunden, Horns Rev and Samso.