Nexans celebrates 40 years since commissioning of the Skagerrak interconnector submarine link
With four Nexans high-voltage direct current mass impregnated cables, total power of link between Denmark and Norway is 1,700 Megawatts, enabling additional renewable energy in the mix
Paris, March 30, 2017 – For decades, high-voltage direct current (HVDC) mass impregnated (MI) cables have been the preferred solution for long-distance submarine transmission. This year, Nexans, a worldwide leader in the cable industry, is celebrating 40 years since its HVDC MI cables were first put into commercial service at the Skagerrak Interconnector submarine HVDC link between Denmark and Norway. In 1977, the Skagerrak link, which is owned and operated by Energinet.dk in Denmark and Statnett SF in Norway, represented the first time high-voltage cables were installed for such a long distance sea crossing (130 kilometers) at a water depth of 550 meters.
In operation, the links of the Skagerrak Interconnector enable additional renewable energy to be integrated into the power mix and more efficient use of electricity by connecting the Norwegian grid, which is largely hydroelectric based, with the Danish grid, which is primarily thermal and wind power based. With 40 years of service and counting, the Skagerrak Interconnector’s HVDC MI cable systems from Nexans have definitely proven their strong reliability and longevity.
Nexans’ Skagerrak 1 and 2 HVDC MI cables are operating at 250 kilovolts, and each cable has a power rating of 250 megawatts (MW). As the demand for energy between the countries increased, additional power transmission has been installed. Today, four cables have a total power rating of 1,700 MW, which represents the energy needs of nearly 25 000 typical Scandinavian households.
HVDC MI cables from Nexans are used for transmission links worldwide including the Skagerrak line and other interconnectors such as Sweden-Finland (Fenno-Skan) and Estonia-Finland (EstLink 2). They also are being used for the upcoming HVDC links between Italy and Montenegro (Mon.Ita), Norway and Germany (NordLink) and Norway and the United Kingdom (NSL).
“Through decades of research and development in design, materials, testing, manufacturing processes and installation techniques, Nexans has been able to push the limits for voltage levels, power transmission capacity and installation depth for MI cable systems. Ongoing research and development activities for MI cable systems focus on even higher voltage levels and increased transmission capacity, resulting in new possibilities for bulk transmission of vast amounts of electrical energy over long distances,” says Vegar Syrtveit Larsen, Technical DirectorNexans Norway. We are proud to say that as of today, Nexans has more than 2,600 kilometers of MI cables in service, and with the upcoming links, this figure will be almost doubled by the end of 2021.
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As a global leader in advanced cabling and connectivity solutions, Nexans brings energy to life through an extensive range of best-in-class products and innovative services. For over 120 years, innovation has been the company’s hallmark, enabling Nexans to drive a safer, smarter and more efficient future together with its customers. Today, the Nexans Group is committed to facilitating energy transition and supporting the exponential growth of data by empowering its customers in four main business areas: Building & Territories (including utilities, smart grids, emobility), High Voltage & Projects (covering offshore wind farms, submarine interconnections, land high voltage), Telecom & Data (covering data transmission, telecom networks, hyperscale data centers, LAN), and Industry & Solutions (including renewables, transportation, Oil & Gas, automation, and others). Corporate Social Responsibility is a guiding principle of Nexans’ business activities and internal practices. In 2013 Nexans became the first cable provider to create a Foundation supporting sustainable initiatives bringing access to energy to disadvantaged communities worldwide. The Group’s commitment to developing ethical, sustainable and high-quality cables drives its active involvement within several leading industry associations, including Europacable, The National Electrical Manufacturers Association (NEMA), International Cablemakers Federation (ICF) or CIGRE to mention a few. Nexans employs more than 26,000 people with industrial footprint in 34 countries and commercial activities worldwide. In 2017, the Group generated 6.4 billion euros in sales. Nexans is listed on Euronext Paris, compartment A. For more information, please consult: www.nexans.com