NKT’s solution consists of 220 kV (kilovolt) HVAC (high-voltage alternating current) cable systems between the offshore transformer platforms and connections to shore. The advanced solution enables the integration of 600 MW (megawatt) into the mainland grid, and brings green energy to 600,000 Danish households. Design, testing and production of the submarine cable system were conducted in NKT’s world-class facilities in Karlskrona, Sweden. NKT was also responsible for installation, cable-laying and pull-in operations for the three-core submarine cables. This approach significantly reduces interface risk thanks to NKT’s in-depth understanding of both cable systems and installation methodology.
NKT’s experience and expertise ensure reliable transmission of electrical energy. The offshore cable laying, platform connection and land installation were successfully performed with the state-of-the-art cable-laying vessel NKT Victoria. The vessel is built specifically for handling and laying submarine cables. The performance was excellent, with regards to both speed and accuracy, and the mission was completed within the scheduled time. This grid connection has a total length of about 100 km, of which 11 km is between platforms and 44 km is from each of these platforms to shore, the project was massive and called for smooth execution.
As a supplier of the cable system and installation, NKT provided its expertise throughout the value chain, which enables a safer and more predictable project execution, both in terms of liabilities and costs. The cable system was put into service in 2019.