Flexibility marketing of EEG generators and battery storage systems

E2m is the leading provider of decentralized negative Frequency restoration reserve (SRL) in Germany. This is also confirmed by the Bundeskartellamt’s latest report on the balancing power market: no other provider has prequalified more decentralized systems for the provision of negative SRL. That’s more than just a title – it’s a real advantage for e2m customers.

e2m launches new product for even more flexibility that automates curtailment in the event of negative prices in a smart way and makes it economically attractive – even for smaller PV systems. For a 2.1 MWp system, this means up to 6 percent additional yield – around €6,000 extra per year.

HoBohTec GmbH relies on e2m as a partner for the connection and marketing of its first own battery storage system. Thanks to lean processes and close coordination, the modular “Powerhouse” system was quickly integrated into the grid and optimally utilized – a pilot project that serves as a model for other systems.

In this interview, Kurt Kretschmer, Head of Legal & Compliance at e2m, explains why the economic pressure on solar system operators is likely to intensify further – and why flexible solutions such as Storage are the key to remaining profitable even in times of frequently negative electricity prices.

Following the prequalification of the first German offshore wind farm Borkum Riffgrund 1 for the provision of Frequency restoration reserve (aFRR), the wind farm has now been providing balancing energy continuously and reliably for over a year.

In an interview with our Regulatory Manager Sebastian Nitsche and Product Manager Filip Markert, we discuss how this path was shaped and what challenges Energy2market has to face in day-to-day balancing power operations.

The biomass package adopted at the end of January 2025 clearly focuses on making the plant portfolio more flexible for the second funding period. However, the demanding requirements in the legal text are also likely to lead to challenges in practice. You can find an overview here.