ENGIE Romania aims to develop two major battery energy storage projects in Galați and Sibiu counties, contributing to the modernization of the national energy system and supporting ENGIE’s global target of reaching 95 GW of renewable and storage installed capacity by 2030.
The first project will be implemented within the ENGIE’s operational 50 MW wind farm located in Băleni commune, Galați county.
Construction works are planned to start in the first quarter of next year. Once operational in the summer of 2026, the battery system will have a power output of 5 MW and a storage capacity of 10 MWh, enabling renewable electricity delivery into the grid for two hours at full capacity.
The system will use LFP (lithium iron phosphate) technology. The configuration will also allow the delivery duration to be extended from 2 to 4 hours, depending on future grid requirements.
It is designed to absorb surplus energy when production exceeds grid capacity and to mainly provide system services (frequency regulation, balancing, etc.) as well as balancing services for the wind farm.
The second project will be located in Șelimbăr, Sibiu county. ENGIE Romania recently acquired the project rights, with building works scheduled to begin in November 2025.
With an installed power of 80 MW and a storage capacity of 160 MWh, the project represents a significant investment in the central region of the country. The system will be located on a land area of approximately 2 hectares and will use LFP technology. ENGIE is also considering a potential future extension of the battery’s capacity from 2h to 4h.
The project is “Ready-to-Build”, with all permits in place for construction, and commercial operation is expected to begin in the fourth quarter of 2026.
“Flexibility solutions such as battery energy storage become essential for the stability and resilience of the energy system. These two projects strengthen ENGIE’s position as a reliable partner in the energy transition and reaffirm our commitment to a sustainable and decarbonized future. In addition, we plan initiatives that will bring our total installed battery capacity to approximately 300 MW by 2030,” said Cristian Buzan, Vice President of ENGIE Romania.