Despite the scale of the program, only four parks are currently planned to include energy storage systems: two in Havana, one in Holguín, and one in Granma. Each of those battery banks will have a capacity of 50 MW—insufficient to meet even the nighttime demand of a small. 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. With Cuba's renewable energy capacity growing at 12% annually (Global Energy Monitor 2023), Havana faces a critical challenge: storing solar and wind power effectively. Despite these advancements, power outages persist due to the lack of capacity in the electrical system. That. The Cabaiguán photovoltaic park, with a capacity of 21. 87 MW, located in the central province of Sancti Spíritus, began operations after just over two months of installation.