Neoen Commissions 92 MW BESS in France with RTE Grid-Forming Retrofit
French renewable energy developer Neoen has officially commissioned the Breizh Big Battery, a significant 92 MW/183 MWh battery energy storage system (BESS) located in Pleyber-Christ, Brittany. This marks the company's fourth operational BESS in France, highlighting its continued commitment to the French energy transition.
The construction and assembly of the facility were executed by Huawei and Equans, completed within an impressive 18-month timeframe. Beyond its substantial capacity, the Breizh Big Battery is at the forefront of technological innovation in grid stability.
Pioneering Grid-Forming Technology
The facility is actively participating in a pilot project led by the French transmission system operator (TSO), RTE. The primary objective of this initiative is to transition the battery's inverters from a traditional grid-following mode to an advanced grid-forming mode through a software update, entirely without the need for hardware modifications.
Grid-forming systems are crucial for the future of energy grids, as they establish their own voltage and frequency references, effectively stabilizing the grid and supporting the integration of intermittent renewable energy sources.
This software retrofit pilot demonstrates how existing and newly commissioned assets can be upgraded to provide essential system services, ensuring grid resilience as France continues to phase out fossil fuels and expand its renewable energy footprint. The successful deployment of the Breizh Big Battery sets a promising precedent for future BESS projects across the European Union.
Neoen's global battery portfolio currently totals 3.5 GW/10.6 GWh in operation and construction, underscoring its scale in the European market. The ability to provide grid-forming capabilities via software is particularly vital for regions like Brittany, which historically relies on long-distance power transmission. By establishing local voltage and frequency references, the Breizh Big Battery reduces the strain on the national grid and enhances local energy security. Furthermore, the collaboration between Neoen, RTE, Huawei, and Equans showcases the synergistic approach required to modernize Europe's energy infrastructure. As the EU targets higher renewable penetration, such software-driven retrofits will become standard practice, allowing battery storage to act as a virtual synchronous machine.
Source: PV Magazine
This article was assisted by AI analysis. Please refer to the original source for official information.