Innovative hybrid storage system for decentralized energy supply

In the BiFlow project, KIT researchers and partners are developing an advanced hybrid storage system for the STAGE76 student residence in Bruchsal. The system combines lithium-ion and vanadium redox flow battery technologies to efficiently supply electricity and heat. Vanadium redox flow technology offers advantages such as scalability, long service life and high operational reliability, while lithium-ion batteries are known for their high energy density, efficiency and low acquisition costs. An innovative aspect of the project is the recovery of waste heat from the vanadium redox flow battery, which increases the overall efficiency of the system. The additional use of the battery electrolyte tanks as heat storage enables effective electricity-heat coupling. The hybrid storage system in STAGE76 uses local photovoltaic systems for power supply and storage and uses surplus solar power to supply heat. In this way, it supplies students on site with green electricity and sustainable heat, reducing their dependence on the electricity and heating grid. Extensive measurement technology analyzes the system operation and provides important data for the energy transition. In addition, the project is developing an intelligent energy management system that supports the optimization of self-consumption and efficiently combines electricity and heat supply. BiFlow aims to shape the future of decentralized energy supply and maximize economic and ecological benefits.

Further information:

• Press release of KIT

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