The consortium of German group Siemens and Spanish fabrication yard Dragados Offshore has been awarded a contract for the construction of converter stations for the offshore wind farm BorWin5 being developed by energy company TenneT in the German North Sea. The contracts for the DC underground and submarine cables have been awarded to NKT HV Cables AB. Commissioning of the 900-MW connection is scheduled for 2025.
BorWin5 is the 15th offshore grid connection system to be developed by TenneT in the German North Sea and also the 12th direct current connection. Compared to the predecessor project DolWin5, TenneT said it was able to achieve a significant cost reduction for the offshore converter stations. One reason is that for BorWin5 the smart platform concept is being used for the first time. This not only keeps the costs for the platform construction manageable, but also allows the company to extend the intervals for maintenance and servicing to once a year.