The European Energy Storage Inventory is the first of its kind at European level to show all forms of clean energy storage solutions. Unlike existing databases that focus on specific storage types, this platform surveys and maps a full range of technologies.
It offers near real-time data on the deployment of storage facilities across Europe, including an interactive dashboard and map, and identifies all the technologies, from battery storage to pumped hydro, and emerging technologies like hydrogen storage and thermal storage.
Energy storage systems are key for balancing supply and demand, ensuring grid stability, and improving energy efficiency. By offering real-time energy storage data, this tool gives the best possible overview of the power storage in Europe.
How it works
By aggregating data from multiple sources, including internal databases and external commercial and non-commercial repositories, the inventory helps with energy system modelling and planning, and improves forecasting of storage deployment and capacity needs. EU policymakers and researchers can also download raw data for further research efforts.
Specifically, it provides:
- Comprehensive coverage of all clean energy storage forms
- Up-to-date key figures on energy storage deployment across the EU, showcasing total power by operating status (GW), storage power by country (GW), number of projects by status, and storage power by status and technology
- Interactive ways to visually compare data
- Dynamic maps with filtering options for various energy storage projects, pilot sites, and major commercial installations
- Near real-time operating status of the facilities
- Policy insights with the analysis of regulatory frameworks and market integration strategies
The importance of energy storage data
Energy storage helps balance supply and demand by storing surplus energy for use during low-production times, maintaining consistent energy delivery despite renewable generation variation.
It supports grid stability through rapid-response backup systems that regulate frequency and voltage, essential for renewable energy networks. It also reduces energy waste by capturing excess renewable energy, which increases system efficiency and cost performance.
Storage also reduces reliance on imported fossil fuels, improving energy independence, and promotes decentralised energy systems that are positioned closer to users, so improving infrastructure resilience and adaptability.
Expected growth
Europe’s current total operational power is around 66 GW, and planned projects mean this might double to 132 GW by 2035. According to findings from the inventory, Germany, Italy and Spain have the main relevant storage facilities among the member States. The main operational technology in terms of power is pumped hydro; however, future expectations are mainly for electromechanical technology, i.e. – batteries.
Background
The European Energy Storage Inventory is part of the REPowerEU Plan and the EU's broader goal of achieving climate neutrality. The inventory provides policymakers with up-to-date data to shape energy security strategies and the EU's revised Strategic Energy Technology Plan (SET Plan). The inventory also has the potential to feed into the Clean Energy Technology Observatory, ensuring that storage trends are considered in EU-wide energy technology assessments.
Related links
Details
- Publication date
- 20 March 2025
- Author
- Joint Research Centre
- JRC portfolios
