Bavaria's largest power bank launched: Immenstadt is driving the energy transition!
Immenstadt has opened Bavaria's largest battery storage facility, which is crucial for the energy transition, and Kempten is planning further storage capacities.

Bavaria's largest power bank launched: Immenstadt is driving the energy transition!
In the idyllic town of Immenstadt, which is picturesquely located in the Allgäu region, a remarkable step has been taken towards the energy transition. Bavaria's largest battery storage system has officially started operations and is proudly described as the "largest power bank in Bavaria". Loud Mercury The system, which was built by green flexibility in collaboration with the Allgäu energy supply company AÜW, will play a crucial role in ensuring future stable power supply.
The Bavarian State Minister Eric Beißwenger emphasized the importance of this plant for the energy transition. The innovative storage technology is intended primarily to compensate for fluctuations in the power grid and thus support the use of renewable energies. The project, which consists of eight overseas containers with an output of around 15 megawatts and a capacity of 33 MWh, cost a total of around 15 million euros and was completed faster than planned.
The future of energy supply
The newly founded operating company is responsible for the project, with the city of Immenstadt making the land available under a lease model. The Oberallgäu district has clear goals to achieve climate neutrality by 2025. With this impressive step into the future, the region could be exemplary when it comes to sustainable energy production and storage.
It is also exciting that another ambitious project is already in the starting blocks in nearby Obergünzburg. Green Flexibility is planning a battery storage facility there with a capacity of 90 MWh and an output of 40 MW, which will replace the system in Immenstadt as the largest in southern Swabia. The construction of this large storage project will cost around 35 million euros and is scheduled to be commissioned at the end of 2026 b4bschwaben. Mayor Lars Leveringhaus confirmed the need for additional storage capacity, as the region has invested more intensively in photovoltaic and wind energy in recent years.
A look into the future of the market
The developments in Immenstadt and Obergünzburg are part of a larger trend that will also affect Germany by 2025. The battery storage system (BESS) market is experiencing continued growth, driven by strong policy support and increasing investor interest. Figures show that in 2023 alone, around 85% of new installations will be in the home storage sector. The projected growth rate for industrial storage is estimated at an impressive 9% by 2032 EY.
The trend towards large-scale battery storage systems, such as those being built in Immenstadt and Obergünzburg, offers enormous potential. These systems will not only contribute to the stability of the grid, but also help to overcome the upcoming integration challenge of renewable energy. With every new battery system, a further step is taken towards a more sustainable energy future that not only benefits the environment, but also society.