Technology developmenteuropean energy storage

What is the European energy storage inventory?

In March 2025, the Commission launched the European Energy Storage Inventory, a real-time dashboard that displays energy storage levels across different European countries. It is the first European-level tool of its kind and offers energy storage data across a full range of technologies.

How does energy storage work in the EU?

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.

What are Europe's next-generation storage technologies?

Research institutions across Europe are developing next-generation storage technologies, including advanced flow batteries, compressed air energy storage, and hydrogen-based systems.

Why should energy storage technologies be deployed?

An appropriate deployment of energy storage technologies is of primary importance for the transition towards an energy system. For that reason, this database has been created as a complement for the Study on energy storage - contribution to the security of the electricity supply in Europe. The database includes three different approaches:

How did energy storage technology evolve in the 20th century?

The 20th century witnessed remarkable progress in energy storage technologies, driven by the rise of electricity-dependent societies. Lead-acid batteries evolved into more efficient designs, while new technologies like nickel-cadmium and lithium-ion batteries emerged.

Is energy storage the future of energy storage?

As renewable energy adoption accelerates across Europe, the transformative potential of energy storage has never been more significant. Beyond traditional lithium-ion batteries, breakthrough technologies like solid-state cells, hydrogen fuel systems, and gravity-based storage are reshaping how we capture and distribute power.