According to the 10th edition of the “European Energy Storage Market Monitoring” (EMMES) report jointly released by the European Energy Storage Association and the energy transition consulting firm LCP Delta, as of the second quarter of 2026, the cumulative installed capacity of energy storage systems deployed in Europe has exceeded that of nuclear power plants. In 2025, Europe deployed a record 13.5 GW/26.4 GWh of energy storage systems; in the third quarter of 2025, the cumulative installed capacity of residential energy storage systems, industrial and commercial (C&I) energy storage systems, and grid-side (utility-scale) energy storage systems had exceeded 100 GW.
The report indicates that by the end of 2025, the cumulative installed capacity of energy storage systems deployed in Europe had reached 102.7 GW. Since then, continuous deployment has continued, and as of the second quarter of this year, the total installed capacity has exceeded approximately 105 GW of nuclear power facilities. By the end of 2025, approximately half (53.3 GW) of the total installed capacity of energy storage systems deployed in Europe were traditional pumped hydroelectric power facilities, while almost all of the rest were electrochemical energy storage systems (48.7 GW), with lithium-ion batteries dominating. Additionally, there were approximately 400 MW of large thermal energy storage systems and 300 MW of other energy storage systems.
The EMMES report aims to comprehensively review the energy storage market dynamics in EU member states, the United Kingdom, Switzerland and Norway, covering both operational energy storage projects and those scheduled to be connected to the grid by 2026, and to release market forecasts up to 2030. At the time of the report’s release, European energy storage industry players are gathering at the Smarter E exhibition and the ees Europe energy storage special conference held in Munich this week.
According to the EMMES 9.0 report released in March 2025, the new energy storage capacity added in Europe in 2024 was 11.9 GW/21.1 GWh. In that year, the new annual energy storage installations in Europe and the United States simultaneously exceeded the 10 GW mark for the first time.
The energy storage systems deployed in Germany, Italy and the United Kingdom all exceed 10 GW.
In the newly added energy storage systems, the growth of user-side (BTM) energy storage systems has led the European market, followed by grid-side (FTM) battery energy storage systems. This is in stark contrast to the US market – where the deployment of grid-side energy storage systems is predominant, while the scale of user-side energy storage systems is relatively smaller. It is worth noting that the report indicates that in 2024, the installed capacity of new grid-side energy storage systems in Europe surpassed that of user-side systems for the first time, but this trend reversed again in 2025.
Currently, Germany, Italy and the United Kingdom are the top three energy storage markets in Europe, with the installed capacity of new energy storage systems exceeding 10 GW each; Spain, France and Poland follow closely behind, with the installed capacity of new energy storage systems ranging from 5 GW to 10 GW.
By the end of 2025, the cumulative installed capacity of various battery energy storage systems deployed in Europe is as shown in the table below:
The European Energy Storage Association and LCP Delta Company stated that due to the continuous growth of the energy storage market activities, they have significantly raised their 2030 forecast. It is expected that by the end of 2030, 153 GW/485 GWh of energy storage systems will be added. In the EMMES 9.0 released in the spring of 2025, the predicted increase was 128 GW/300 GWh.
From the perspective of specific fields, the prediction made by EMMES 10.0 for the year 2030 is as shown in the following table:
Although the current deployment speed and the growth prospects until 2030 are encouraging, the report emphasizes that so far, European countries have not fully realized the potential of energy storage deployment.
Jacopo Tosoni, the policy director and deputy secretary-general of the European Energy Storage Association, stated that the European energy storage market is entering a new phase, and breaking through the 100GW installation threshold is an important milestone. However, he also pointed out: “There will still be more opportunities in the future. European countries have not yet fully exploited the potential of energy storage deployment, and the electrification, deployment of renewable energy, and demand for the power system are still continuously increasing. To unleash this potential, it is necessary to ensure fair competition of energy storage in the power market. Clear investment signals, technology-neutral market designs, faster approval and grid connection processes, as well as more convenient access to flexibility, stability, and capacity mechanism support, will be the key to achieving the scale of energy storage systems required for the future energy system in Europe.”