HyFlow developed a hybrid energy storage system that combines a high-power vanadium redox flow battery with a supercapacitor, advanced power converters and a highly flexible energy management system. The flow battery provides large, modular storage capacity, while the supercapacitor handles fast, high-power demands and extends the lifetime of the whole system.
Such a system can provide grid services such as frequency regulation and renewable balancing at low cost, without critical raw materials, and operates on time scales from milliseconds to days.
Results
- A 5 kW laboratory demonstrator and a 300 kW industry-scale demonstrator of the hybrid storage system.
- Material improvements to the flow-battery modules for higher power.
- Vanadium recycling strategies and a prototype vanadium extraction and recycling plant.
- An energy management system that controls the battery, supercapacitor and converters for a high degree of energy autonomy.
- A patent filing, a newly commercialised product and the follow-up Horizon Europe project SMHYLES.
Pinflow's Role
Pinflow took part as a beneficiary and contributed its expertise in kW-class vanadium flow-battery stacks with very low internal resistance, together with its laboratory cells and kW-scale test rigs for the electrochemical and hydrodynamic characterisation of stacks.
Consortium
The project was coordinated by the University of Applied Sciences Landshut (Germany) and brought together research institutes, universities and companies from Germany, Austria, Italy, Spain, Portugal and the Czech Republic. Learn more at hyflow-h2020.eu.