C-Energy, a member of the AKU-BAT association, was the first in the Czech Republic to receive certification for its large-scale battery storage enabling to provide balancing services. The battery with a power of 4MW and a capacity of 2.5MWh was supplied by another member of AKU-BAT, Siemens. The testing confirmed the ability of the battery to provide the required services to ensure and maintain safety and stability. Read more in the C-Energy press release (in Czech).