- In Spain, ENGIE is acquiring two Battery Energy Storage Systems (BESS) projects totaling 278 MW.
- In France, the Group is starting construction of its first BESS facility, with a capacity of 110 MW.
- With 700 MW of projects already in operation or under construction, the Group reaches more than 1 GW of BESS capacity in Europe.
ENGIE is accelerating the development of Battery Energy Storage Systems in two key European countries and reaffirms the essential role of flexibility in its strategy. These new projects will enhance grid stability, support the 24/7 integration of renewable energy, and strengthen the complementarity between key technologies at the heart of the energy transition.
Acquisition of Spain’s largest battery project
ENGIE announces the acquisition of two BESS projects in Spain, totaling 278 MW / 1.1 GWh. These projects, which will enable the storage of up to four hours of energy, are the largest currently under development in the country. Nationally, the Group already operates 1.8 GW of renewable capacity.
These two standalone storage projects are located in Andalusia, in Álora (78 MW / 312 MWh) and Tarifa (200 MW / 800 MWh). They are equipped with synchronous condensers, a technology that helps stabilize the grid by providing inertia and enabling the absorption or injection of reactive power. Construction will begin in 2027, with progressive commissioning in 2028.
First battery energy storage project in France
ENGIE has just started construction of its first BESS project in France, where the Group is already the leader in solar and onshore wind with 5.3 GW of installed capacity.
Located in the municipality of Castelnau d’Aude, in the Aude department, in southern France, the site covers 2 hectares near a grid connection point. It will consist of 51 modules for a total capacity of 110 MW / 220 MWh. Once commissioned - scheduled for summer 2027 - it will store and release up to 2 hours of electricity.
More than 1 GW of battery storage capacity in Europe
With these new projects and 700 MW already in operation or under construction, the Group now has more than 1 GW of BESS capacity in Europe, in eight counties. In addition to Spain and France, ENGIE is developing projects in Belgium, Germany, Italy, the Netherlands, Romania and the United Kingdom.
These developments support ENGIE’s ambition to reach 95 GW of renewable and storage capacity by 2030. With 57.2 GW of installed capacity at the end of 2025, the Group is well on track to reach this objective.
' These storage projects address a key challenge of the energy transition: combining growth in renewable energy with the stability of the electricity system. They strengthen ENGIE’s ability to provide its customers with reliable, decarbonized and affordable electricity' said Paulo Almirante, ENGIE Senior Executive Vice President in charge of Renewable & Flexible Power.
Source: Engie
