This business case shows the advantages of a hybrid battery energy storage system combined with a power-to-heat (PTH) solution. The installed thermal PTH system, which is already used for additional applications, provides negative power which is usually limited to the secondary reserve market. By combining both systems, the capacity of the thermal storage adds up to the installed BESS capacity. In this case only 600 kWh instead of 1000 kWh battery capacity is required. Overall this results in a reduced CAPEX of 30 - 40%.
By combination of a battery energy storage system with a thermal storage the investor gets two advantages:
Today's battery market prices vary between 500€ and 1400€. With the combined battery energy storage & power-to-heat concept, less batteries are required which results in a lower investment and faster payback times. If you consider a battery price of 600€ the payback period of systems with power-to-heat will be 5 years instead of 8.4 years without it.
As a long-term expert in battery and power conversion technology AEG Power Solutions provides a comprehensive solution based on the following systems and services: