The project includes six battery energy storage systems of varying capacities – from 20 to 50 MW each – connected to the Ukrainian power grid. 11, 2025 (GLOBE NEWSWIRE) -- Fluence Energy B. (NASDAQ: FLNC) (“Fluence”), a global market leader delivering intelligent energy storage systems, services, and asset optimization software, has energised Ukraine's largest battery-based energy. DTEK's Fluence Gridstack battery units at one of six energy storage sites across Ukraine, part of the country's largest battery energy storage project announced on July 10, 2025. The project was announced on September 11, 2025, marking a. As part of this collaboration, they have announced the implementation of one of the largest energy storage projects in Ukraine.