On August 6, 2025, Spain's Ministry for the Ecological Transition and the Demographic Challenge (MITECO) approved €148. 5 million in funding for 199 pioneering solar-plus-storage projects, firmly establishing battery energy storage systems (BESS) as a mandatory component. . Spain has launched an ambitious €700 million (around $796 million) program to increase its energy storage capacity. It includes pumped hydro, thermal energy storage, and battery systems. The goal is to improve how Spain uses renewable energy. . Global energy storage capacity was estimated to have reached 36,735MW by the end of 2022 and is forecasted to grow to 353,880MW by 2030. Endurance Motive, a Valencian firm specializing in lithium batteries, has closed the sale of its first 5. 015 kWh megabattery, the first manufactured entirely on the peninsula and. . The article will explore top 10 energy storage manufacturers in Spain including e22 energy storage solutions, Iberdrola, Cegasa, HESSte, Uriel Renovables, Matrix Renewables, Gransolar Group, Grenergy Renovables, Landatu Solar, Power Electronics.