The EU installed a record-breaking 27. 1 GWh of new battery energy storage system (BESS) capacity in 2025, with Germany and Italy topping the chart again, while Bulgaria emerged as the fastest-growing market. . A new interactive platform delivers real-time clean energy storage insights as Europe shifts toward sustainable energy sources. The European Energy Storage Inventory is the first of its kind at European level to show all forms of clean energy. . 27. 0) Public Domain. . EU member states added 27.
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