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Prysmian Group’s new 525 kV cable system for HVDC applicationsdoubles capacity, for more efficient and cost-effective grids.

Prysmian Group has reached an important technology break through in the field of power transmission, with the successful development and testing of the new 525 kV cable system for HVDC applications. Testing of the new cable system, witnessed by a third-party certification body, was carried out according to Cigré testing protocols. A breakthrough innovation in cable technology, this achievement will enable a massive increase in the maximum transmission capacity of bi-pole systems of up to more than 2.6 GW – more than double the value reached using the 320 kV DC systems currently in service. Such doubling of capacity will enable more efficient and cost-effective power transmission grids.

We’re proud to be able to offer the most advanced technologies for power transmission, including proprietary 600 kV MI PPL insulation technology, a high-performance cable system reaching up to 3.3 GW, to important customers, such as transmission system operators. According to Massimo Battaini, Senior Vice President Energy Projects at Prysmian, “This important milestone confirms the Group’s commitment and prominent role in the sector of cutting-edge technologies for innovative HVDC power transmission solutions.” HVDC cable links are key components of sustainable energy systems, transmitting large amounts of electricity over long distances, often across or between countries. This achievement will put Prysmian in a good position to support the forthcoming tenders for cable system undergrounding projects along HVDC corridors, such as those being developed in Germany.

World-class Focus on and world-first projects

Over the years Prysmian Group has successfully developed, tested and delivered the world’s first 200 kV and 320 kV HVDC projects, utilising extruded insulation cable technology. The Group is also achieving world records thanks to the implementation of 9 cable projects for voltage classes up to 320 kV, including the Transbay Terminal in San Francisco, the France-Spain and Italy-France underground interconnections, and large offshore wind cluster interconnections off the coast of Germany.