Innovative Battery Power Plant in Bordesholm

The battery power plant of Versorgungsbetriebe Bordesholm (VBB) has been in operation since 13 May 2019 and serves as a prime example of a sustainable and decentralised energy supply throughout Germany. With an output of 15 MW and a capacity of 15 MWh, the power plant is in normal operation in the balancing energy markets and on the spot and intraday markets. In the event of a failure of the upstream transmission grid, the battery power plant for Bordesholm enables a self-sufficient, off-grid and black-start capable supply from 100% renewable energies from PV, biogas plants and CHP units. On 30 November 2019, the storage system was successfully tested in a real-life island grid operation, when the municipality of Bordesholm with its approximately 4,800 households was temporarily completely decoupled from the European grid. The storage facility has been marketed by Entelios in cross-market optimisation since May 2024. This includes all short-term EPEX spot markets and balancing energy products (FCR, aFRR) for grid stabilisation and frequency maintenance. Entelios markets the balancing energy fully automatically via its own KRITIS-certified infrastructure. The project impressively demonstrates how the storage system contributes to ensuring security of supply and supporting the energy transition. It positions itself as a pioneering example of the successful integration and storage of renewable energies. Quote: VBB Managing Director Frank Günther:

“With Entelios, we have an experienced and innovative partner that fully exploits the potential of our battery storage system. Thanks to their cross-market optimisation and automated control reserve marketing (incl. aFRR), we generate revenues on all relevant markets. This has significantly increased the profitability of our storage system. This partnership brings us an important step closer to a sustainable and secure energy supply.”