DEEP-CABLE: Demonstration of a new production method for high-voltage submarine cables that enables higher efficiency and lower costs for sea-based energy sources
- Post by: Tobias Larsson
- 22nd June 2025
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About
The project aims to demonstrate a unique, innovative production process for doubling the extrusion of XLPE, which will lead to the production of the world’s longest HVDC subsea cables. This length increases efficiency and reduces costs in the expansion of offshore energy
The Energy Agency’s support will strengthen the positioning of a strategically important and high-tech European industry that secures domestic access to technology in line with Sweden’s and the EU’s climate goals. The Project includes:
- Verify production at pilot scale and full operating conditions with the aim of achieving RL7.
- Perform product tests in a realistic environment with customer(s) and third party inspector.
- Demonstrate and validate that the new cable fulfils electrical and mechanical performance according to relevant standards.
- Disseminate the results of the project to target groups including clients, market, and relevant academia.
Project info
BTH project leader: Professor Tobias Larsson , co PhD candidate Alexander Barlo.
Funding: Total budget 125.4 MSEK ( 35.5 MSEK The Swedish Energy Agency)
Partners:
- BTH
- NKT HV Cables AB
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Tagged: ai, alexander barlo, andreas larsson, demo, mdd, nkt, pilot, production, SDD, tobias larsson