Zurich, Switzerland: Hitachi Energy, a global technology leader focused on a sustainable energy future, has secured a significant order to supply four high-voltage direct current (HVDC) converter stations for the groundbreaking subsea electricity interconnection project between France and Spain.

The project will boost the power exchange capacity between the two countries by 2,000 megawatts (MW) and support the integration of emission-free energy sources.

The joint venture of Electricity Interconnection France-Spain (Inelfe), responsible for cross-border connections, awarded Hitachi Energy the contract to construct and commission the HVDC link, which will span the Biscay Gulf. The ambitious project, labeled as a project of common interest (PCI) at the European level, will comprise two HVDC links with converter stations at each end, effectively providing a 400-kilometer connection capable of delivering electricity at 400 kilovolts (kV).

By supplying electricity equivalent to the consumption of over two million households, the subsea interconnection will revolutionize the regional power infrastructure. Most of the interconnection will run underwater, except for a short section that avoids the deep Capbreton Canyon by returning to land. The project will not only enhance the security and reliability of power supply but also generate cost savings that will benefit consumers and contribute to the energy goals of Europe.

Niklas Persson, Managing Director of Hitachi Energy’s Grid Integration business, emphasized the importance of cross-border interconnections in Europe’s increasingly interconnected grid. He highlighted the pivotal role of Hitachi Energy’s pioneering HVDC technology in supporting Inelfe’s pursuit of sustainability goals, fortifying electricity supply between France, Spain, and the broader European network.

Established following the Zaragoza Agreement in 2008, Inelfe aims to bolster electricity exchange between France and Spain. The new infrastructure will double the current interconnection capacity from 2,800 MW to 5,000 MW. This strategic enhancement aligns with Hitachi Energy’s Purpose to champion a clean energy transition through innovation and collaboration.

Hitachi Energy will collaborate with VINCI, a leading industry player in energy and construction, to deliver an advanced solution for the Biscay Gulf project. Combining their expertise in engineering, power technologies, and construction, the two companies will leverage their core competencies to ensure the project’s success and provide a best-in-class solution.

Hitachi Energy’s HVDC solution incorporates cutting-edge technology, including HVDC converter valves, the MACH™ digital control platform, converter power transformers, and high-voltage switchgear. With over 70 years of experience in commercial HVDC projects, Hitachi Energy has a proven track record, having delivered more than half of the world’s HVDC installations.

As Hitachi Energy works toward its mission of advancing a sustainable energy future, the subsea electricity interconnection between France and Spain marks a significant milestone in Europe’s energy landscape. By enabling the integration of emission-free electricity and enhancing the reliability of power supply, this project paves the way for a greener and more interconnected future.

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