ESTMAP – Energy Storage Mapping and Planning

Europe’s energy system is in transition towards a low-carbon system. The increasing role of intermittent renewable energy sources such as solar and wind, implies the need for more flexibility in the energy system to accommodate variability in supply from these sources. Storage of energy could play an essential role in providing such flexibility for Europe’s future energy system.

The first objective of the ESTMAP project is to develop a geographical database with key characteristics of existing and potential future energy storage options in Europe. This includes above-surface energy storage options including LNG storage or pumped-hydro storage, as well as sub-surface storage options such as natural gas or thermal storage. The second objective of the project is to prepare this data on storage potential for performing energy system analysis and modelling. The project outcomes aim to help the European Commission in strategic analysis, planning and decision-making on the EU’s future energy system. The database and analyses will allow to better assess potential bottlenecks in our energy system and optimise the planning for energy production, storage and infrastructure.

Ecofys carries out this project in a consortium with TNO, BRGM, CGS and VITO. Ecofys is responsible for collecting and processing GIS-based data on existing and future above ground energy storage sites (i.e. pumped hydro, LNG and liquid air) in Europe. This encompasses information on capacity, costs and accessibility. On the basis of the geographical database and maps on sub- and above-surface storage options, Ecofys performs extensive modelling exercises to analyse the potential role of storage in the broader energy system. For example, we use our PowerFys model to assess detailed energy dispatch characteristics in an energy system including this storage potential for a three-country region in Europe.

ESTMAP Database - Online GIS-viewer: The ESTMAP project has investigated the distributed potential to deploy large-scale energy storage across Europe and demonstrates how this information can be used for analysing future energy scenarios. Please find a link to the viewer here.

More information on the project:


Edwin Haesen
Energy Systems and Markets
Hydropower plant  (c) thinkstock/Thomas Zsebok