Positive
Project advancing - milestone achieved
Medium Impact
Significant progress or notable issue
Before HelWin1 entered service, Siemens’ consortium partner Prysmian had supplied and laid in bundle the two high-voltage direct current export cables for the project, each about 130 km long and designed for 250 kV DC operation. The route comprises roughly 85 km of subsea cable across the North Sea and 45 km of underground cable to the onshore converter station at Büttel, forming the complete transmission link between the HelWin Alpha offshore platform and the German mainland grid and leaving the cables ready for final connection and commissioning.