Prysmian Group has successfully completed testing of the first 525kV extruded submarine full cable system for High Voltage Direct Current (HVDC) applications.
This will enable a massive increase of the maximum transmission capacity of bi-pole systems up to more than 2.5GW, which is more than double the value achieved with 320kV DC systems currently in service, Prysmian said.
The one-year prequalification testing was carried out per international standards including CIGRE TB-496 and witnessed by a third-party certification body, it added.
Prysmian Group chief executive Valerio Battista said: “Prysmian Group has always been at the forefront in the development of innovative and advanced technological solutions for power grids, namely land and submarine cable systems for HVDC applications.
“This new milestone confirms our commitment and prominent role in the development of power grids infrastructure, key for the energy transition.”
HVDC cable links are key components of sustainable energy systems, to transmit large bulks of electricity over long distances, often across or between countries.
This achievement will put Prysmian Group in a unique position to support the forthcoming tenders for submarine interconnectors aimed at granting efficiency, flexibility and reliability of power grids, the company said.