Denmark’s NKT has signed a contract with Energinet to deliver an HVDC power cable system for the offshore interconnector linking the Bornholm Energy Island to the power grid on Zealand.

A press release said that Energinet, a Danish transmission system operator (TSO), selected NKT to provide the 525 kV high-voltage direct current (HVDC) on- and off-shore power cable systems for the Danish connection to the Bornholm Energy Island. The contract, valued at approximately $757 million, includes the design, manufacture and installation of a power cable system that includes a 200 km offshore route and a 16.8 km onshore route.

NKT will produce the power cables at its high-voltage factory in Karlskrona, Sweden, and is located close to the installation site. Bornholm Energy Island is a landmark renewable energy project located in the Baltic Sea, designed to receive up to 3.8 GW of offshore wind power from planned offshore wind farms. The energy will be transmitted to Germany and Denmark via two HVDC offshore interconnector systems.

With this award from Energinet, NKT will connect the energy island to both the Danish and German power grids. This follows the turnkey contract awarded to NKT in 2023 as part of a large framework agreement with German TSO 50Hertz to connect the island to the German grid.

“Bornholm Energy Island is a key project for Europe to enhance energy security and the exchange of renewable energy,” said NKT President and CEO Claes Westerlind “With this award, we reaffirm our strong commitment to building the sustainable and secure energy infrastructure Europe needs, and demonstrate our proven high-voltage power cable capabilities.”

Offshore installation is planned to be carried out by the new vessel, NKT Eleonora, which is currently under construction. Once operational in 2027, the vessel will be one of the most advanced and fuel-efficient cable layers in the industry.