Europe's energy storage fleet surpassed 100 gigawatt in 2025, marking a major milestone as the region strengthens support for a growing renewable power system, Energy Storage Europe said Monday.
The region added a record 13.5 GW and 26.4 GWh of electrochemical storage last year, lifting total installed storage capacity across all technologies to 102.7 GW, the report added, citing data from European Market Monitor on Energy Storage.
The study, which covers the European Union, UK, Norway, and Switzerland, said storage demand continues to grow as countries add renewable energy capacity and increase electricity use across transport, heating, and industry.
Germany, Italy, the Netherlands, Austria, and the UK drove behind-the-meter storage growth, lifting installed electrochemical capacity to 30.2 GW and 46.2 GWh by the end of 2025. Solar-plus-storage systems, dynamic tariffs, and electrification supported demand.
Capacity markets in the UK, Italy, Poland, and Belgium drove utility-scale battery growth, raising front-of-the-meter storage capacity to 18.5 GW and 34.4 GWh. Support programs also encouraged deployment in Italy, Bulgaria, Poland, and Spain.
The report raised its utility-scale battery outlook by 25% from last year's forecast, citing expanded project pipelines and improved market conditions that strengthen confidence in future storage demand.
Storage capacity will continue growing through 2030, with Germany and Italy expected to remain the largest behind-the-meter markets and UK and Italy leading utility-scale deployment.
"Reaching over 100 GW of installed storage capacity is a remarkable achievement, but the greatest opportunity still lies ahead. No European country has yet reached its storage potential, while electrification, renewable deployment, and system needs continue to grow," Jacopo Tosoni, Deputy Secretary-General and Head of Policy at Energy Storage Europe, said.