Author

Petra Hannen

Articles written by Petra Hannen

Markets

Germany approves rules for storage, bidirectional charging Germany’s Federal Network Agency (Bundesnetzagentur) has approved rules for the market integration of electricity storage systems and charging points (MiSpeL), allowing batteries to combine renewable and grid electricity while preserving support for eligible renewable power.

Oct 02, 2026

Revenue streams

Vattenfall to market 285 MW German battery portfolio Vattenfall has signed long-term marketing agreements for four German battery energy storage systems (BESS) totaling 285 MW, three already under construction, which will trade in wholesale and balancing markets.

Sep 30, 2026

Grid-scale

German study sees potential for 60 GW of additional energy storage via smarter use of substations Intelligently controlled battery storage systems could significantly improve the utilization of existing medium- and high-voltage transformers, says a Fraunhofer IEE study.

Sep 21, 2026

Markets

Germany records 574 GW of battery storage requests in 2025 German grid operators received 18,158 requests to connect battery storage systems in 2025, totaling 573.5 GW of power and 1,583 GWh of capacity. Grid operators issued connection commitments for 54.2 GW and 142.4 GWh, up sharply from the previous year.

Aug 26, 2026

Projects & Applications

Alpiq acquires 103 MW/238 MWh BESS from Eco Stor Swiss energy company Alpiq has acquired the project company behind the 103 MW/238 MWh Bollingstedt battery energy storage system (BESS) in Germany from Eco Stor.

Petra Hannen, Sandra Enkhardt

Aug 25, 2026

Projects & Applications

Capac, Eos unveil 22 MWh German zinc-bromine BESS, sign 2 GWh deal Capac Energy plans to deploy a 5 MW/22 MWh zinc-bromine battery project in Germany, while signing an exclusive deal with US-based Eos Energy covering 2 GWh of storage capacity across Germany, Austria and Switzerland through 2031.

Jun 23, 2026

Revenue streams

BESS design can more than double co-location revenue potential A new study by German energy trading specialist Suena Energy shows that revenue potential from solar-plus-storage projects can vary sharply depending on how PV arrays and battery systems are configured.

Jun 23, 2026

Markets

Engie, Flower sign 126 MW BESS flexibility deal in Germany Engie and Sweden's Flower have entered into a seven-year deal covering 126 MW of battery storage capacity in Germany.

Jun 22, 2026

Grid-scale

Kyon Energy to build 146.5 MW battery storage project in Germany Kyon Energy is expanding its battery storage portfolio with a new project in northwestern Germany that is scheduled to enter operation in 2027.

Jun 03, 2026

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