A construction of a special kind: 30 metres high and weighing 2400 tonnes – the offshore transformer platform Arcadis Ost

A key element for the connection of the Arcadis Ost 1 wind farm to the German high voltage grid of 50Hertz has been completed. In Aalborg, Denmark, over the past few months the electrical equipment has been installed in the Arcadis Ost offshore substation – the heart of the wind farm.

“We are pleased that the Ostwind 2 project continues to be well on schedule. This brings us another good step closer to the goal of climate neutrality,” says Dr Gerrit Mulert, General Project Manager Ostwind 2 at 50Hertz. 

“In the next few weeks, the transformer platform will be shipped to its installation site 19 kilometres east of Rügen. There, the platform will be assembled with the two other components, the so-called transition piece and  monopile components. Afterwards, the submarine export cable already laid by 50Hertz will be connected to the offshore substation. Several test operations will have to be successfully carried out before it is finally considered complete and can be put into operation,” says Matthias Wilhelm, Ostwind 2 Offshore Substation Project Manager at 50Hertz. 

“You can imagine the part up to the substation on land as a motorway slip road, so to speak, and from the substation onwards we are then on the highway with the green electricity in the direction of consumption centres,” adds Dr Gerrit Mulert. 

The Ostwind 2 grid connection project connects the two wind farms Arcadis Ost 1 and Baltic Eagle to the German high voltage grid. The Arcadis Ost 1 wind farm is being built by the Belgian company Parkwind. The Arcadis Ost offshore substation is a joint project of 50Hertz and Parkwind. It weighs around 2400 tonnes, including the technical equipment, and is 30 metres high.

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