Energy storage
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 -
Historic and forecasted megawatt installs of energy storage across Europe. Image: EASE / LCP Delta. A total of 11.9GW of energy storage across all scales and technologies was installed in Europe in 2024, bringing cumulative installations to 89GW.
Europe currently has 913 energy storage facilities in operation, with a combined capacity of 67 GW. The predominant technology is mechanical storage (54.6 GW) with pumped storage hydropower plants. However, electrochemical storage, including lithium - ion and flow batteries, is catching up, at 11 GW.
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 race to revolutionize energy storage stands at a critical turning point in 2024. As renewable energy adoption accelerates across Europe, the transformative potential of energy storage has never been more significant.
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