Recently, SolarPower Europe, the European solar photovoltaic industry association, released the “European Battery Storage Market Outlook 2026-2030”. This report delves deeply into the trends and predictions of residential, commercial and industrial (C&I) as well as utility-scale battery market segments, providing an in-depth insight into the current state of the European energy storage industry. The report not only presents the record growth in 2025 but also provides the latest forecast until 2030, and highlights the key market drivers, regional development dynamics, and important policy recommendations.
The “European Battery Storage Market Outlook 2026–2030” is based on data up to 2025, analyzing the current status of battery storage systems (BESS) across Europe and providing market forecasts for 2030 for three scenarios. The report covers key market trends, particularly focusing on the transition to utility-scale storage, the continuous growth of residential and commercial installations, and the evolving role of battery storage in supporting Europe’s clean energy goals.
The report includes detailed market data for major countries, analyzes the regulatory and economic drivers behind deployment rates, and highlights the differences between various markets. Additionally, the report outlines the main challenges faced by the battery storage industry, including an imperfect policy framework and investment barriers.
The report concludes with five policy recommendations aimed at accelerating the deployment of battery storage and ensuring that the energy system is prepared to integrate high proportions of renewable energy.
Summary: In 2025, Europe’s installed capacity of battery storage systems (BESS) reached 36 GWh, marking the 12th consecutive year of record annual new installation capacity since the start of this data series. These new installations have pushed the total operational capacity of battery storage systems in Europe to exceed 100 GWh by the end of the year.
After a slowdown in 2024, the annual growth rate in 2025 rebounded to 48%.
This initial slowdown was expected, as the abnormal expansion that occurred between 2021 and 2023 was largely driven by the residential sector in response to the energy price crisis. The strong growth in the utility sector in 2024 offset this slowdown, and this year marked a turning point in the battery market – changes in electricity price dynamics, support frameworks, and financing conditions all occurred, which were beneficial for the deployment of utility-level batteries.
In 2025, these fundamental dynamics had a substantial impact. Utility-level batteries accounted for more than half of the total deployment volume for that year. Their expansion reflected an increase in system flexibility requirements, stronger revenue synergies, a decline in technology costs, the expansion of solar-plus-battery storage hybrid systems, and an increase in investor confidence.
Focusing on the market of the 27 countries of the European Union, 27 GWh of battery energy storage systems (BESS) were installed in this region in 2025, accounting for 75% of the new total in Europe. Therefore, by the end of that year, the cumulative deployed battery energy storage capacity in the European Union had approached 80 GWh.
The European battery market continued to expand, but Germany, the United Kingdom, and Italy still dominated; the new installed capacity in Ukraine and Bulgaria increased to approximately 3 GWh.
Germany: 6.6 GWh (household use slowed down, grid-level doubled), UK: 5.2 GWh (policy benefits rebounded by 64%), Italy: 5.0 GWh (subsidy delays led to a 18% decline), Ukraine: 2.9 GWh (driven by energy security during wartime), Bulgaria: 2.7 GWh (EU funding, fastest growth rate in Europe). The five countries account for 62% in total, but the trend of market diversification is obvious. Ukraine has lost over 20 GW of generating capacity in recent years, and energy storage has shifted from an investment opportunity to a key energy security asset. In 2025, about 1 GW will be added, with the flagship project DTEK-Fluence at 200 MW/400 MWh (investment of approximately 125 million euros). Energy storage has been deployed in key facilities such as water plants, hospitals, and schools, proving that it is no longer just an energy clean tool but also a necessary facility for ensuring the normal operation of society.
With the popularization of utility-scale energy storage, the total installed capacity of batteries in Europe has exceeded 100 GWh.
By 2030, the annual battery market size in Europe is projected to increase to 138 GWh, which is four times the current level.
By 2030, the total installed capacity of batteries in Europe will approach 600 GWh.
Since 2021, the installed capacity has increased by 10 times, and since 2016, it has grown by 100 times. The total investment has reached 17 billion euros, with a year-on-year growth of 20%.
Three major market segments: 1. Grid-level energy storage: 19 GWh was added, doubling year-on-year, accounting for 53% of the total for the year, and becoming the dominant force; 2. Household energy storage: 12.3 GWh was added, an increase of 3%; the EU has seen a continuous decline for two years, but the total number of household photovoltaic and energy storage systems installed across Europe has exceeded 540,000 units; 3. Industrial and commercial energy storage: 4.7 GWh was added, a surge of 77%, and the share rose to 13%, reaching a new high.
Forecast (Medium Scenario) for 2026-2030: 2026: Over 50 GWh will be added (+44%), with a cumulative total of over 150 GWh; 2030: 138 GWh will be added, with a cumulative total of approximately 580 GWh (EU 470 GWh); The compound annual growth rate (CAGR) for 2026-2030 will be 28%.
Structural Changes: Grid-level energy storage will account for 67% of the cumulative installed capacity in 2030 (392 GWh), household storage will drop to 21% (121 GWh), and industrial and commercial storage will remain at 12% (68.7 GWh).
Key Drivers: Increasing electricity price volatility (negative electricity prices rose from less than 0.5% before 2022 to 3.4% in 2025, with a significant expansion of intraday price differences), a 37% reduction in the cost of lithium iron phosphate systems from 2022 to 2025, improved policy framework (energy storage auctions, support plans, simplified licensing), and enhanced investor confidence.
Target Gap and Policy Call: Despite the rapid growth, the EU still struggles to achieve its 2030 targets. Rystad Energy estimates that at least 600 GWh is needed to support a high proportion of renewable energy, and the medium scenario only provides 470 GWh, only approaching this level in the high scenario (593 GWh).
The report calls for the urgent introduction of the “Battery Energy Storage Action Plan”, focusing on three aspects: releasing the value of flexibility through reasonable grid electricity price structures, ensuring full market access for energy storage, and guaranteeing long-term policy consistency and transparency.
Emerging Highlight Markets: The Netherlands, Spain, Austria, Belgium, Greece, Poland, and Romania are accelerating deployment. Greece has approved a large amount of grid-level capacity through multiple energy storage auctions; Romania is expected to double its market size for two consecutive years. By 2030, Germany, the United Kingdom, and Italy will still rank in the top three, and Spain and the Netherlands are expected to enter the top five.
Continuous Challenges: Grid access bottlenecks, lengthy licensing procedures, regulatory uncertainty, and limited revenue sources. The rate of photovoltaic power storage integration in industry and commerce is still low, but it has risen to 20% for commercial and 10% for industrial by 2026.
The report concludes that the “missing piece” of battery energy storage has finally begun to fit in. However, the target itself does not automatically bring flexibility – policymakers, regulators, and market participants must work together to ensure that low-cost energy storage releases all the value for Europe’s energy security, competitiveness, and climate ambition.
