Prysmian Group will develop about 550 km of underground cable for TenneT for an around 270 km portion of the HVDC line – SuedOstLink. The P-Laser cable system allows a transmittable power of 2GW on a single system.
December 22, 2021
Prysmian Group has produced the first 20 km of underground cable for the SuedOstLink – one of Germany’s most important High-Voltage Direct Current (HVDC) lines. The power lines are being developed for easily transporting wind power from the Northern to Southern regions.
The cables have been manufactured as per international standards and the Dutch-German transmission system operator – TenneT TSO GmbH. The first lots of cables – a total of 9 drums, each with 1,750 m of underground cable and weighing 83 tonnes each is being transported to an intermediate storage area.
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The worldwide leader in the energy and telecom cable systems industry will produce a total of around 550 km of underground cable for TenneT for an approximately 270 km long section of the SuedOstLink. In this project, two HVDC underground cables will be laid in one trench.
Detlev Waimann, Powerlink Chief Commercial Officer, Prysmian Group, remarks, “The innovative P-laser cable technology together with Prysmian Group’s long-lasting experience in the installation will allow higher sustainability and reduction of local community impact.”
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The P-Laser cable system allows a transmittable power of 2GW on a single system. The ±525 kV HVDC underground cable system uses extruded cables at the highest voltage level. The copper cables, along with the innovative P-Laser insulation technology enable particularly high transmittable power with minimal environmental impact. It is the first 100 percent recyclable, environmentally friendly high-performance cable technology based on HPTE (High-Performance Thermoplastic Elastomer).
Prysmian’s ±525 kV HVDC underground cable is a cable system designed with large conductor cross-sections for high transmittable power over long distances. Its particular advantage is minimised space consumption – the ±525 kV technology allows a reduced amount of cable to transmit the same power compared to 380 kV systems.
