Nexans converts AmpaCity research center into DC microgrid

Nexans, a global player in sustainable electrification, has commissioned the first phase of its direct current (DC) microgrid pilot at its AmpaCity global innovation hub in Lyon, France. Developed in collaboration with key ecosystem partners, including Schneider Electric and VINCI Energies Building Solutions, the project marks a step forward in developing 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 face limitations in efficiency and energy management. DC offers higher energy efficiency, improved resilience, and seamless integration of renewable energy sources. However, deploying DC architecture at the building level requires new approaches to system design and interoperability.

To address 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 Series cables and linked to the AC network via an interlink converter integrated by Schneider Electric. A photovoltaic installation will be added in the second phase.

The initiative reinforces Nexans’ position as a pioneer in DC electrification and the first cable manufacturer to integrate a DC microgrid within its own R&D facilities. It also strengthens the company’s DC Series cable portfolio, offering dedicated low-voltage DC cable solutions designed for commercial and residential buildings, public infrastructure, and data centers, paving the way for future standards in 700–800 V DC architecture.