EU Battery Storage Capacity Soars 45% to 27.1 GWh in 2025
In 2025, European Union member states installed 27.1 GWh of new battery energy storage capacity—a 45% increase over 2024—marking the twelfth consecutive year of record-breaking growth,
Despite this surge, SolarPower Europe said the continent is not on track to deploy the 780GWh of battery storage it claimed will be needed to ensure flexibility, reliability and decarbonisation of the energy sector in line with policy targets by 2030.
The main energy storage method in the EU is by far 'pumped storage hydropower', which works by pumping water into reservoirs when there is an electricity surplus in the grid - for example on a sunny or windy day - and releasing it when more energy is needed.
The report also found that if market growth continues along the lines of current trends, Europe is on course for 400GWh of cumulative stationary battery storage deployments by 2029, including 344GWh by the 27 EU Member States, approximating a compound annual growth rate (CAGR) of about 45%.
“If Europe has already entered the solar age, the battery storage age is just beginning,” SolarPower Europe CEO Walburga Hemetsberger said. SolarPower Europe is allied with EASE, WindEurope and VC investor Breakthrough Energy in the Energy Storage Coalition, which collectively advocates for European action to promote storage.
In 2025, European Union member states installed 27.1 GWh of new battery energy storage capacity—a 45% increase over 2024—marking the twelfth consecutive year of record-breaking growth,
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