ENGIE has accelerated its battery energy storage expansion across Europe with new projects in Spain and France, pushing its total Battery Energy Storage Systems (BESS) capacity in the region beyond 1 GW.
In Spain, ENGIE has acquired two standalone BESS projects with a combined capacity of 278 MW / 1.1 GWh, marking the largest battery storage developments currently underway in the country. The projects are located in Álora (78 MW / 312 MWh) and Tarifa (200 MW / 800 MWh), and are designed to store up to four hours of electricity. Equipped with synchronous condensers, the systems will enhance grid stability by providing inertia and reactive power support. Construction is scheduled to begin in 2027, with phased commissioning expected in 2028.
In France, ENGIE has commenced construction of its first BESS project in the country. The 110 MW / 220 MWh facility is being developed in Castelnau d’Aude and will feature 51 modules across a 2-hectare site. Once operational in summer 2027, the project will deliver up to two hours of electricity storage, supporting grid flexibility and renewable integration.
With these additions and approximately 700 MW already operational or under construction, ENGIE now holds over 1 GW of battery storage capacity across eight European countries, including Belgium, Germany, Italy, Netherlands, Romania, and the United Kingdom.
The expansion aligns with ENGIE’s broader strategy to strengthen grid stability and enable round-the-clock renewable energy integration. The company is targeting 95 GW of renewable and storage capacity by 2030, building on its installed capacity of 57.2 GW as of end-2025.
Commenting on the development, Paulo Almirante, Senior Executive Vice President for Renewable & Flexible Power at ENGIE, stated that these projects address a critical challenge of the energy transition by balancing renewable growth with system reliability while delivering affordable, decarbonized electricity.
