Battery Charts is a development of the two institutes ISEA and PGS at RWTH Aachen University.

With this website, we offer an automated evaluation of battery storage from the public database (MaStR) of the German Federal Network Agency. For simplicity, we divide the battery storage market into home storage (up to 30 kilowatt hours), industrial storage (30 to 1,000 kilowatt hours), and large-scale storage (1,000 kilowatt hours and above).
With Battery Charts, we offer interactive graphics on storage capacity, performance, number of installations, monthly additions, technologies, and regional distribution as detailed graphical analyses.

ISEA is working with enspired GmbH to develop an index for the German battery market that will transparently map the revenue potential for large-scale storage facilities with regard to grid services.

The index takes into account spot markets (day-ahead auction, intraday auction, intraday continuous trading) and reserve markets (FCR, aFRR). With this index, we want to help increase market transparency and provide a basis for investors, project developers, and traders to better assess potential revenues. The index is intended to create comparability, but not to reflect the actual maximum achievable revenues. Rather, the index should be designed to be simple so that it remains comprehensible and reproducible.

The Institute for Power Electronics and Electrical Drives (ISEA) operates the M5BAT (Modular Multi-Megawatt Multi-Technology Medium-Voltage Battery Storage) large-scale battery storage facility in Aachen with a power capacity of approximately 5 MW.

In the M5BAT 4.0 project phase, continuous plant operation in the frequency containment reserve market and intraday trading will be replaced by cross-market optimization, and the battery storage facility will be upgraded on the battery side. This will enable further research and comparison of technologies relating to battery aging and performance in the future.

Mobility Charts is a project run by ISEA and PGS at RWTH Aachen University that comprehensively documents Germany’s electric mobility.

The platform continuously analyzes sales figures and the current stock of electric cars and plug-in hybrids in Germany. Key figures, including battery capacity of the vehicle fleet and theoretical AC and DC charging capacities, are provided. The aim is to use this freely accessible database to provide politicians, industry, and researchers with well-founded information on developments in the transport transition.