Redox flow batteries (RFBs) offer promising solutions for safe and durable stationary energy storage; however, high capital expenditures (CAPEX) hinder their commercialization.
Neil Young – Live 2025
I listen to this legend’s music now for over 30 years. Finally I could see Neil Young live this year and it is amazing what music a 79 year old person can play!
Vienna concert
IFBF Vienna 2025 Meetings
Met a good old friend again. Sascha Berthold and I started laboratory work at Fraunhofer Gesellschaft on Flow Batteries in 2007 in the Fraunhofer internal project “MaVo AES”. Sascha is co-founder of Volterion and Redox One and now working with FlexBase.

Successful start to test operation at Fraunhofer ICT: renewable energy stored in a large-scale battery is introduced into the power grid on demand.
Europe’s largest vanadium redox flow battery – located at the Fraunhofer Institute for Chemical Technology – has achieved an important research milestone: In a controlled test, it was possible to successfully demonstrate for the first time how renewable energies such as wind and solar power can be fed into the power grid in a targeted and predictable manner, regardless of current weather conditions.