The world's longest high-voltage direct current (HVDC) cable, Viking Link, is now online, connecting Denmark and the UK. After almost four years of development and a $1.92 billion (DKK 13 billion) investment, the cable, spanning an impressive 765 km (475 miles), enables the direct transfer of electricity between the two nations. This marks the first physical connection between their separate energy systems, fostering the production and balance of renewable energy over a vast geographical area in northern Europe.

The ambitious project, undertaken by Danish system operator Energinet in collaboration with the UK's National Grid, saw the transmission of power from Danish wind turbines to English consumers on December 29th. The use of HVDC technology was essential for covering such extensive distances, with the power being converted onshore to alternating current (AC). Thomas Egebo, CEO of Energinet, emphasized the significance of Viking Link, stating that it is not only the world's longest cable connection but also crucial for creating a green electricity system for the future.

Egebo highlighted that Viking Link opens up opportunities for Danish producers to sell and export electricity to neighboring countries, contributing to a more balanced and stable energy grid. Additionally, the cable facilitates the import of electricity when demand is higher on the other side of the North Sea. This strategic energy connection plays a vital role in mitigating the inherent intermittency of wind power, particularly with the prevailing wind patterns in the region.

While some may question the project's cost, Egebo asserted its unique value, emphasizing that the benefits of enhancing energy resilience and sustainability outweigh the expenses. Looking ahead, the cable's capacity is set to increase as more wind turbines come online in the region by 2025, further solidifying Viking Link's role in shaping the future of European energy distribution.

Source: cleantechnica.com