Alt Daber 2 MWh
Battery Energy Storage System (BESS)
The energy storage Alt Daber is located in close proximity to one of the largest solar plants in Germany. The storage project was funded by the ERDF and the State of Brandenburg and has been in operation since October of 2014. The plant is part of Upside Group’s inventory and is prequalified for the provision of primary control reserve (PCR), as well as automatic frequency restoration reserve (aFRR).
Location
The former military airbase Alt Daber in northwestern Brandenburg was converted for new utilization in 2011. On an area of around 147 ha one of Germany’s largest solar parks was built with a power of 67.8 MWp. During the construction of the energy storage system, a concept for hybrid utilization was implemented, making it one of the most innovative projects in Germany that has ever been realized. Such hybrid applications of wind power or photovoltaics combined with large-scale energy storage system can be extremely useful in areas with weak grids, as well as providing ancillary services for grid stabilization.
Performance
The energy storage Alt Daber is designed using a hybrid controller for the interaction with renewable energy power plants, so that it can also be used in weak grid areas as well as alternatively in order to compensate for fluctuations in the volatile energy supply of a neighboring wind or solar power plant. In the recent past, deployment has focused on the provision of ancillary services like PCR and aFRR.
Technology
The energy storage system Alt Daber is based on a holistic systemic approach of an “Energy Buffer Unit”. The lead-acid battery cells, which have been adjusted to be utilized in mass storage systems, are the backbone of the robust system architecture. All system components are designed for permanent use in wind or solar power plants as well as the provision of ancillary services. The container design allows for quick and easy installation even in areas with poor infrastructure.
