Baltic Storage Platform, a joint venture (JV), has broken ground on two new 200MW/400MWh battery energy storage systems (BESS) in Estonia. The JV between Estonian energy company Evecon, French solar PV developer Corsica Sole, and asset manager Mirova will develop the 2-hour duration systems, with. A unique 400 MWh battery complex is taking shape in Estonia, marking one of Europe's largest energy storage projects. When it comes to energy, compact Estonia thinks big. The country, aiming for a full-fledged green transition, is building unique infrastructure to bring this moment closer. Planned battery storage park of 200 MW and 400 MWh of storage ca city equivalent to 90 000 households" official permit and construction can go ahead. With this cooperation, Zero Terrain is.