Construction begins on offshore grid connection DolWin3

27.05.2014
Aerial view of the future converter station in Dörpen.
Photo: Heinz Rolfes; Matthäi

The transmission grid operator TenneT and the technology company Alstom are beginning construction work on the new converter station in Dörpen West. The project will implement the third grid connection in the DolWin cluster, using a 900 MW high-voltage direct current (HVDC) transmission line.

As part of the grid connection project DolWin3, construction work on a land-based converter station is now beginning in Dörpen West (Heede). A total of 83 km of submarine cable as well as 79 km of underground cable on land will be laid for DolWin3, which will form the third connection of the DolWin cluster. The alternating current generated in the offshore wind farms will be converted into DC electricity using Voltage Source Converters at the converter platform DolWin gamma, which will be constructed soon, and then transmitted through the submarine cable to the land-based converter station Dörpen West. There, the electricity will be converted back into AC current and fed into the German transmission grid via the substation, going mainly towards consumption priorities in western and southern Germany.

"The land-based station is an essential element of the 900 MW high-voltage direct current (HVDC) grid connection, which will connect large wind farms in the southwestern part of the German North Sea area. DolWin3 is an important building block to ensure that offshore wind energy can make a significant contribution to the energy supply of the future," said Wilfried Breuer, managing director for offshore activities at TenneT.

Tanja Peschel

Further article:

Alstom implements DolWin3 offshore grid connection

Similar Entries

Throughout the past weeks, European Energy has grid connected eight solar farms with a total capacity of 70 MW. The solar farms are located at Lolland, Falster, Læsø, Bornholm, near Holbæk and near Hjørring.

Schaeffler and ZF use jointly developed expert models to analyze and predict the condition of wind turbine gearboxes based on the actual loads that occur during operation

ZF Friedrichshafen and Schaeffler are collaborating to develop new solutions for predicting the operating life of wind turbine gearbox components based on the actual loads that occur during operation. Since September, the first wind turbine gearboxes equipped with sensors and condition monitoring systems have been supplying operating data to a cloud-to-cloud solution to enable this to happen.

DHYBRID, the leading German solution provider for PV hybrid, energy storage and smart-grid projects, has announced its partnership with QOS Energy, the data intelligence cloud specialist, to monitor PV hybrid and energy storage plants. DHYBRID will benefit from the versatility of QOS Energy’s monitoring software, which is unique in its ability to aggregate data from all types of energy sources onto one single analytics platform.

Innogy Renewables UK Ltd. is pleased to announce that all 28 turbines at Brechfa Forest West Wind Farm are now operational and exporting renewable energy to the National Grid. With an installed capacity of 57.4MW, Brechfa Forest West can generate enough renewable energy to meet the equivalent energy needs of approximately 38,800 average UK homes; that is almost half of all the households in Carmarthenshire.