Three storage solutions are gaining traction: 1. Lithium-Ion Battery Systems Still the workhorse for short-duration storage (4-6 hours), with new thermal management systems adapted for Mediterranean climates. However,the annual growth rate slowed down to 15% in 2024,after three adoption varied across European countries in 2024. 0) Public Domain. Global investment in battery energy storage systems (BESS) is entering a new phase, moving from niche pilot projects to large-scale grid integration. The European Energy Storage Inventory is the first of its kind at European level to show all forms of clean energy. EU member states added 27. 1 GWh of new battery. Southern Europe is leading a renewable energy revolution, with countries like Spain, Italy, and Greece adopting cutting-edge energy storage systems.
Battery storage is no longer an optional add-on—it has become a strategic pillar of Europe's energy security. According to SolarPower Europe's European Market Outlook for Battery Storage 2025-2029, the region installed 21.9 GWh in 2024, setting a new all-time high. This brings total capacity to 61.1 GWh.
The European battery storage market grew by 15% in 2024, reaching 61.1 GWh of installed capacity. SolarPower Europe warns that, despite projecting to reach 400 GWh by 2029, the region needs at least 780 GWh to meet its energy flexibility goals.
Are batteries the key infrastructure for a secure and competitive energy system?
Batteries are the key infrastructure for a secure and competitive energy system, but we're not moving fast enough,” stresses Walburga Hemetsberger, CEO of SolarPower Europe. The report projects that storage capacity will grow sixfold to reach 400 GWh by 2029.
How big is the battery storage market?
This brought the total installed battery storage fleet to around 36 GWh by the end of the year. Such growth underscores how far the market has come, with adoption accelerating in multiple segments from residential systems to utility-scale batteries.