Assemblin has signed a deal with construction company Skanska for installations at NKT's upcoming extrusion tower in Karlskrona, Sweden.

This project marks Assemblin's continued collaboration with NKT, having contributed to the company's second tower completed in 2022.

The Swedish business areas of Assemblin will be involved in the development of NKT's third and reportedly tallest extrusion tower.

Construction for the new tower commenced in May 2023, with the foundation reaching 15m below ground. Once completed, the structure will stand approximately 200m tall and is claimed to become Sweden's second-tallest building.

The collaborative effort between Skanska and Assemblin is scheduled for completion by early 2026.

NKT is aligning its operations to this timeline, aiming for the plant to be fully operational in 2027, when the delivery of cables to end customers is expected to begin.

The extrusion tower is designed to manufacture both submarine and terrestrial high-voltage cables, connecting to offshore wind farms.

NKT HV solutions Karlskrona managing director and EVP Darren Fennell said: “We are building the world’s largest high-voltage submarine cable factory. The third tower will produce the highest voltage cable in the industry. In this project, it is therefore a matter of course for us to use NKT’s own high-quality installation cables and solutions to the greatest extent possible.”

NKT, headquartered in Denmark, is engaged in the design, manufacture, and installation of energy transmission solutions across low-, medium-, and high-voltage applications.

Assemblin, a part of Assemblin Caverion Group, is an installation and service partner and operates predominantly in Sweden and Norway.

Earlier this month, Assemblin obtained a project comprising an upgrade to AstraZeneca’s Gärtuna production plant in Södertälje, Sweden.