As Cuba accelerates its renewable energy transition, Havana has become a focal point for innovative energy storage solutions. This article explores existing power storage facilities, emerging technologies, and how they're reshaping the city's energy landscape. Havana's Energy Storage Landscape With. . On Saturday, Cuba initiated the installation of solar energy storage batteries at four electrical substations, marking a significant step in addressing its energy challenges. These Battery Energy Storage Systems (BESS), also referred to as "concentrator units," are being placed at Cueto 220, Bayamo. . Summary: The Havana Energy Storage Power Station project represents a critical opportunity in Cuba's renewable energy transition. REUTERS/Norlys Perez By. . Pumped hydroelectric storage is currently the only commercially proven large-scale (>100 MW) energy storage technology with over 200 plants installed worldwide with a total installed capacity of over 100 GW.