Nexans turns Lyon's AmpaCity into a DC microgrid
Nexans has commissioned the first phase of its DC microgrid pilot project at the AmpaCity innovation center in Lyon. The initiative aims to enhance building energy efficiency and resilience.
Nexans, a specialist in sustainable electrification, has commissioned the first phase of its direct current (DC) microgrid pilot project at its AmpaCity global innovation hub in Lyon. Developed with key ecosystem partners, the project represents a significant step in developing next-generation energy systems for buildings.
As electrification accelerates and buildings integrate increasing amounts of energy resources, electric vehicle charging, and electronic loads, traditional alternating current (AC) infrastructure faces limitations in efficiency, flexibility, and energy management. Direct current (DC) offers a compelling alternative, potentially providing better energy efficiency, increased resilience, reduced peak demand, and smoother integration of renewable energy sources. However, deploying a DC architecture within buildings requires innovative approaches to electrical design, interoperability, and safety.
To address these challenges, Nexans has transformed a section of its AmpaCity site into a fully operational DC-powered environment. This pilot project features a 700 VDC distribution bus supplying power to 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 utilizes Nexans' dedicated DC bus cable and is connected to the AC grid via an AC/DC converter integrated by Schneider Electric. A photovoltaic installation is planned for the second phase.
This pilot represents a key step in accelerating the adoption of DC systems in buildings. Collaborative work with partners like Schneider Electric and VINCI Energies allows for the testing and validation of DC architectures under real-world conditions. Nexans' DC Series cables are specifically designed for building applications, offering improved aging resistance, enhanced safety features, and full interoperability.
Andrea Quarteroni of Schneider Electric highlighted the collaboration's role in delivering integrated, future-ready systems. Eric Plumey of VINCI Energies noted that DC microgrids provide a concrete solution to increasing grid pressures.