France, April 8 -- 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 stor...