Nexans has recently inaugurated Stella Nova, its new Center of Excellence located in Hanover, Germany. The new site spans 9,000 m² and is dedicated to three strategic domains including superconducting cables that enable transmission 10 times faster compared to conventional cables with zero energy loss, minimal heat generation, and significantly reduced infrastructure footprint.
June 04, 2025
At a time when digital infrastructures and sustainability challenges are reshaping the global energy landscape, Nexans is investing to meet tomorrow’s critical demands. Nexans has recently inaugurated Stella Nova, its new Center of Excellence located in Hanover, Germany.
On this occasion, the Group also unveils a world-first demonstration: a test bench showcasing the benefits of superconducting cables for powering data centers using low-voltage alternating current (LV AC) and direct current (LV DC).
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The new industrial hub is located on the Panattoni Campus in Hanover. Nexans Stella Nova brings together more than 70 experts in engineering, research, and manufacturing. The new site spans 9,000 m² and is dedicated to three strategic domains: High-precision forming and welding machines for the energy and industrial sectors; cryogenic systems for safe transfer of cryogenic fluids such as hydrogen; superconducting cable and fault current limiter systems to transform electrical infrastructure.
As global electricity consumption by data centers could reach 10% of total energy demand by 2031 , Nexans is innovating to meet the critical challenges of capacity, efficiency, and sustainability.
Superconducting cable systems enable the transmission of up to 10 times more power compared to conventional cables, with zero energy loss, minimal heat generation, and significantly reduced infrastructure footprint. Great opportunities lie ahead with regards potential applications of superconducting technology. Nexans is already involved in multiple projects aiming at developing superconducting solutions beyond the data center industry.
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Commenting on the new development, Jérôme Fournier, Corporate VP Director of Innovation at Nexans, said, “With Stella Nova and this world-first demonstration, Nexans is addressing one of the critical challenges of tomorrow: ensuring the sustainable electrification of an increasingly digital world. Superconductivity offers a breakthrough solution to meet the massive power needs of next-generation data centers, while reducing their environmental footprint and accelerating the energy transition.”
