Large-scale battery storage in Karstädt ensures grid stability and market revenues

With the stand-alone battery storage facility in Karstädt, engira Group (formerly Obton A/S) strengthens the regional grid stability while also benefiting from market-optimised flexibility trading. The BESS has a power capacity of 20.7 MW and an energy capacity of 35 MWh. Trading is carried out jointly with our partner enspired. In this collaboration, we combine enspired’s algorithmic trading and optimization expertise with Entelios’ virtual power plant (VPP), market integration capabilities and experience in ancillary services. This enables the asset to be deployed efficiently across the relevant short-term and ancillary services markets.

Thanks to its medium-voltage grid connection (20 kV) and its geographical location in the 50Hertz control area, the storage facility is optimally integrated into the German electricity grid. The focus is on data-based cross-market optimisation, which allows the available flexibility to be used specifically where it offers the highest added value – for the grid, the market and the operator.