On Saturday, 1st of August 2015, the DolWin beta platform sailed out from Haugesund (Norway) to the German sector of the North Sea.

Exactly one year ago, the platform arrived in Haugesund for outfitting of the topsides electrical processing equipment.

The Norwegian company Aibel in cooperation with the Swiss electricals supplier ABB installed the electrical systems and conducted all test procedures.

The DolWin beta platform, which was built at Drydocks World Yard in Dubai, is one of the largest converter platforms in the world with its 101 metres in length, 74 metres in width and 90 metres in height. The platform’s construction weighs over 23,000 tonnes.

After its positioning in the North Sea, the semi-submersible platform will be placed on the seabed and receive alternating current from wind farms. Afterwards the produced current will be converted into direct current and sent ashore via subsea cables.

The DolWin Beta platform will house the converter station for the DolWin2 HVDC link being executed by ABB.

The link between the platform and the land will have the capacity to transmit 916 megawatts (MW) of clean power into the German grid from three wind farms with a total of 240 turbines.

As stated by Tennet, the national electricity transmission system operator of the Netherlands, the DolWin2 system will connect Dong Energy’s Gode Wind 1 and 2 projects. They are currently under construction around 45 kilometres off the German coast and are expected to be connected by the end of 2016.