Traditionally competent in energy storage

Together with VARTA, Siemens created a comprehensive concept to modernize energy generation. At the same time, the battery manufacturer's proven technology was to be integrated in order to achieve an innovative solution in combination. For this purpose, an overarching energy and load management system was set up. It regulates the systems on the basis of forecasts so that intensive grid use is guaranteed. A combined heat and power plant was installed, which produces 236 kilowatts of electricity for the customer. The new battery storage system from VARTA production has a capacity of 225 kilowatt hours and generates 125 kilowatts electrically. Intelligent load management controls the gensets and ensures, for example, that ventilation systems are switched off if there is insufficient power generation. All electrical and control systems were integrated into a holistic concept.

In addition to self-generated energy, flexible generators can be used in the future to secure favourable electricity prices on the volatile energy market and relieve the grids. Siemens installed the Navigator energy management system, the Desigo CC building management system and the Desigo PX building automation system in order to optimally control and document the systems and exploit their potential.

After just four years, VARTA's investment in the innovative energy generation and storage concept will have paid off. Energy costs of 210,000 euros will be saved per year, also because part of the demand will be covered by the new combined heat and power plant. VARTA now has more transparency about energy consumption and plant operation. A ten-year contract with Siemens ensures the necessary services and optimizations of the fully automated system. A Performance Assurance Manager ensures that electricity from the grid is used in the best possible way. This relieves the grid and at the same time optimally integrates renewable energies with flexible systems.