Nexans has announced the commissioning of the first phase of its direct current (DC) microgrid pilot at the AmpaCity global innovation hub in Lyon, France. Developed in collaboration with key ecosystem partners, including Schneider Electric and VINCI Energies Building Solutions, the project forms part of the first Current/OS pilots deployed in France and marks a significant step forward in the development of next-generation building energy systems.
As electrification accelerates and buildings integrate increasing volumes of distributed energy resources, electric vehicle charging and electronics loads, traditional alternating current (AC) infrastructures are facing growing limitations in efficiency, flexibility and energy management. DC offers a compelling alternative, enabling higher energy efficiency, improved resilience, reduced peak demand and more seamless integration of renewable energy sources. However, deploying DC architecture at building level requires novel approaches to system design, interoperability and safety.
In response to these challenges, Nexans is transforming part of its AmpaCity facility into a fully operational DC-powered environment. This next-generation pilot includes a 700 VDC main distribution bus supplying office workstations via USB-C, lighting systems, a 14.4 kWh battery storage system and two 30 kW fast charging stations for electric vehicles. The system is connected by Nexans’ dedicated DC bus cable and linked to the AC network via an interlink converter integrated by Schneider Electric. A photovoltaic installation will be added in the second phase of the project.
“This pilot is a key milestone in our ambition to accelerate the adoption of direct current in buildings,” said Jérôme Fournier, VP Group Innovation at Nexans. “By working closely with partners such as Schneider Electric and VINCI Energies Building Solutions, we can test, validate and refine DC architectures in real-world conditions. This hands-on approach allows us to develop reliable, interoperable solutions that improve efficiency, performance and safety, while preparing our customers for the future of electrified infrastructure through industry-leading innovations.”