Berlin, 26.11.2024 – Construction has begun on a large-scale lithium iron phosphate battery storage facility in Untersteinach (Kulmbach district) in, Bavaria. With a capacity of 10.35 MW, the facility’s output is comparable to that of a 10-hectare solar farm or three medium-sized wind turbines. The facility is scheduled to be connected to the grid in mid-2025.
Each new large-scale battery storage facility marks a step forward in Germany's energy transition. As renewable energy generation from wind and solar continues to grow, the electricity mix becomes increasingly volatile. Batteries are essential to store excess energy when production exceeds demand and to release energy when renewable sources fall short. Battery storage systems also provide grid-supportive services by stabilizing the electricity grid during frequency fluctuations with their reserve capacity. In this case, the facility will help prevent power outages caused by instability in Bayernwerk Netz's local medium-voltage grid.
The municipality of Untersteinach is leading the way and supporting the energy transition. The community also benefits from a tax reform, under which 90% of business tax revenues remain with the municipality where the facility is located.
The project in Untersteinach is part of a series of large-scale battery storage systems developed by terralayr, which will be integrated into terralayr’s digital trading platform after their grid connection. Through this innovative "flexibility platform," electricity producers, grid operators, and businesses looking to store energy without direct access to physical storage can fulfill their needs by accessing a virtual storage system backed by a portfolio of physical batteries like the one in Untersteinach. For storage investors like terralayr, this model offers the advantage of higher and more stable returns.
The batteries used in the project were manufactured by SunGrow and have a capacity of 10.35 MW with an energy output of 22.36 MWh. The LFP technology employed is especially safe and meets the highest fire safety standards. The system is also designed to be exceptionally quiet and comfortably complies with all noise protection regulations. Facilities are always constructed at a sufficient distance from residential areas.
terralayr partnered with FBS-Systems for project development, while the implementation is being carried out by be.storaged.
The Untersteinach project highlights be.storaged's expertise in simplifying energy integration. With a technology- and manufacturer-independent approach, the company delivers tailored solutions spanning planning, procurement, construction, operation, and maintenance (O&M). This comprehensive coordination ensures seamless execution, enabling innovative utility-scale battery systems to actively contribute to Germany’s energy transition.
"Our thanks go to our project partners at be.storaged, FBS-Systems, and especially Bayernwerk Netz, which has taken a pioneering role in large-scale battery storage as a distribution grid operator in Germany. We would also like to extend our heartfelt thanks to the municipality of Untersteinach and Mayor Volker Schmiechen for the excellent collaboration on this project," said Valerie Mahar, VP Asset Development at terralayr.
About terralayr
terralayr is a fully integrated energy flexibility provider. terralayr addresses the massive global need for energy storage by aggregating own as well as third party battery storage assets. A cloud-like software platform makes energy flexibility accessible „as-a-service” to many customer groups, including power producers, grid operators and large consumers of power such as data centers. terralayr develops and operates a portfolio of own battery storage assets, with currently one asset operational, several assets in construction and a total development pipeline of over 5GW in Germany. The company’s leadership team is composed of industry experts from companies like Limejump, RWE, Fluence, Next Kraftwerke and Pexapark.
About be.storaged
be.storaged offers comprehensive utility-scale energy solutions, seamlessly guiding projects from initial development through full EPC (Engineering, Procurement, and Construction) to O&M (Operations and Maintenance). Founded in 2017 as a subsidiary of EWE AG, the company combines proven know-how and extensive market expertise to provide innovative, sustainable energy management systems. With a technology- and manufacturer-independent approach, be.storaged delivers flexible, tailored solutions that maximize efficiency and returns throughout the project lifecycle.