Europe added a record 13.5 gigawatts (GW)/26.4 gigawatt-hours (GWh) worth of battery energy storage in 2025, helping to push the total installed capacity of all types of storage technology over the 100GW mark and edge up to rival Europe’s nuclear capacity.
The latest European Market Monitor on Energy Storage (EMMES), published by LCP Delta and Energy Storage Europe this week, analysed energy storage across all 27 European Union countries as well as Great Britain, Switzerland, and Norway.
A total of 13.5GW/26.4GWh worth of “electrochemical” storage was added in 2025, bringing the total capacity for EMMES-monitored countries to 48.7GW. When including all forms of storage, including pumped-hydro, cumulative capacity exceeded 102 GW, putting it just behind the approximately 105 MW worth of nuclear capacity in the same 30 countries at the end of 2025.
And according to this 30-country definition of “Europe”, energy storage overtook nuclear capacity in the second quarter of 2026 and should be 10GW ahead by the middle of the year.
By 2030, LCP Delta and Energy Storage Europe expect cumulative installed electrochemical storage to exceed 202GW, with 153GW/485GWh of electrochemical storage expected to be added to European grids over the remainder of the decade.
