The new extrusion tower, equivalent in height to the length of two football fields, has been built to meet the growing global demand for high-voltage power cables essential for the transition to renewable energy. Located at NKT's Swedish facility in Karlskrona the tower will be capable of producing power cables of up to 640 kV. A single pair of these can transmit enough electricity to supply three million households.
- During construction, we received a delivery of concrete every hour, enabling the tower to grow by approximately 2.6 meters per day. This is the third tower at our facility, and the expansion results from the record-high order backlog we have received to strengthen and expand the global power grids. Our site in Karlskrona will become the world's largest manufacturing site for offshore cables, and NKT plays a crucial role in electrifying large parts of the world. We hope the tower will become a symbol of this important transition, says Darren Fennell, Executive Vice President and Head of HV Solutions Karlskrona at NKT.
The construction of the tower is part of NKT's extensive investment plan, which also includes a new cable-laying vessel. As a result, NKT plans to hire around 500 new employees in Karlskrona by 2027.
- NKT is not only a major employer in Karlskrona but also a key player in the global energy transition. Through our investments, we contribute to building a sustainable and robust power grid for both Sweden and Europe. As one of the few companies worldwide capable of producing advanced power cables for electrification and offshore wind farms, our presence in Karlskrona will play a vital role in building Europe's future energy infrastructure, says Darren Fennell.
Facts: The tower
- The tower will be used as part of the production process for power cables with voltage levels of up to 640 kV.
- The tower’s total height is 200 meters, equivalent to approximately 20 stories.
- It is taller than many well-known European landmarks, including Big Ben in London (96 meters) and the Leaning Tower of Pisa (56 meters). The NKT Tower ranks 57th among Europe’s tallest structures.
- The tower has a base of 23x23 meters.
- The height of the tower is crucial for the cooling of cable insulation, as the cables need to hang vertically for proper cooling during production.