Jan De Nul moves into renewables

20 Dec 2011
The E.ON contract has moved Jan De Nul into the renewables industry Photo: E.ON

The E.ON contract has moved Jan De Nul into the renewables industry Photo: E.ON

The Jan De Nul Group has been awarded a project for the design, construction and installation of 16 concrete foundations for an E.ON offshore wind farm in the Baltic Sea.

Mr Pierre Tison, director international division, Jan De Nul Group, said to The MotorShip: "We also concentrate on the renewable market because it is closely related to our dredging and marine activities. It's a developing market with lots of opportunities and we intend to be a part of it."

Jan De Nul has already started work on the design of the foundations for the turbines – including fatigue calculations and physical modelling.

The foundations will be constructed in Zeebrugge from March 2012 onwards. It will take four months for the 10,000 cubic metres of concrete to be poured into the 24.5m high foundations and then set.

Each foundation will then be towed from Zeebrugge to Sweden from May 2012 onwards on superpontoons.

The dredging operations for the foundations will include a vessel mobilised to dredge a pit in the seabed onto which a rock layer will be placed by a stone dumping vessel. The foundations will be installed on top of this layer and ballasted every 50 years or so.

The civil and dredging works by Jan De Nul should be completed by Autumn 2012.

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