Increased power transmission capacity by up to 15 percent and higher grid reliability

Energy management: Prysmian reaches double technology milestone in the field of power transmission. Highest ever voltages of 700 kV (PPL) and 600 kV (XLPE) reached for HVDC cable systems.

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Power transmission: Prysmian Group, a provider of energy and telecom cable systems, has reached two record-breaking milestones in the field of power transmission. It announces the successful development and testing of its new 700 kV MI-PPL (Mass Impregnated) and 600 kV extruded (XLPE) cable systems for high voltage direct current (HVDC) applications.

“It is the first time in the cable industry that voltages at these high levels have been achieved”, stated Massimo Battaini, Senior Vice President Energy Projects at Prysmian Group. “These are also the first developments in cable technology that enable HVDC power transmission systems beyond 3 GW per cable bipole, and as such, are capable of more than double the power transmission capability of DC cable systems currently in service”, he added.

These achievements prove the robustness and reliability of both XLPE and mass impregnated PPL technologies for HVDC applications to the highest voltage levels, the latter emphasizing the intrinsic potential of the Group’s PPL proprietary technology.

The voltage upgrades resulting from such achievements also allow increasing the power transmission capability by up to 15% beyond the previously highest voltage 525 kV XLPE technology and beyond that currently achieved with high performance PPL technology at voltage level of 600 kV, respectively.

These milestone achievements follow the Group’s recent announcement of the successful testing of the 525 kV DC XLPE and 525 kV P-Laser cable solutions in December 2015 and March 2016 respectively and are further recognition of the clear commitment and leading role Prysmian has towards innovation in cable technology.

For these new voltage classes Prysmian leveraged its extensive and in-depth knowledge of materials and its understanding and ability to improve manufacturing approach, to successfully address the challenges of optimising reliable industrial processes with strict technological parameters and providing complete systems of cable and accessories with the best dielectric properties.

HVDC cable links are key components in delivering sustainable energy systems for the bulk transmission of electrical power over long distances, whether across or between countries. Prysmian Group has always been at the forefront in the development of innovative technological solutions for power grids, with the provision of cable systems for HVDC applications. In achieving these important milestones the Group is now able to offer the most advanced technologies and provide Transmission System Operators engaged in developing, extending and upgrading their power grids with real options for the design and implementation of performance optimized and cost efficient high power grid links and interconnectors.

Prysmian Group
Prysmian Group is world leader in the energy and telecom cables and systems industry. With almost 140 years of experience, sales of about €7.5 billion in 2015, over 19,000 employees across 50 countries and 88 plants, the Group is strongly positioned in high-tech markets and offers the widest possible range of products, services, technologies and know-how. It operates in the businesses of underground and submarine cables and systems for power transmission and distribution, of special cables for applications in many different industries and of medium and low voltage cables for the construction and infrastructure sectors. For the telecommunications industry, the Group manufactures cables and accessories for voice, video and data transmission, offering a comprehensive range of optical fibres, optical and copper cables and connectivity systems. Prysmian is a public company, listed on the Italian Stock Exchange in the FTSE MIB index.

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