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RE-WATCH THE EVENT HERE!

SEE YOU IN BUDAPEST IN JUNE 2026!

The 15th edition of the International Flow Battery Forumtook place from 24 to 26 June in Vienna, Austria, at the Intercontinental Hotel, supported by CellCube and Flow Batteries Europe!
Over three days, and with the participation of 350 delegates including the leading experts of the flow battery sector, the conference featured talks, panel sessions, open discussions, networking breaks, a poster session, a conference dinner and a local site visit.
The International Flow Battery Forum (IFBF®) is the leading event for the flow battery community. The IFBF promotes the most recent developments in the science, technology and commercialisation of flow batteries. Our conferences cover a broad range of interests in the research and commercial aspects of flow batteries.
In 2026, the International Flow Battery Forum (IFBF®) will host its 16th edition in the city of Budapest, Hungaria, in the month of June. Exact dates will be announced soon. 

THE PROGRAMME

This year, we returned to Vienna since our first edition in 2010, where we have been hosted by Cellcube. Christoph Stelzer, their COO welcomed us and introduced Cellcube’s flow battery strategy.
Commissioner David Hochshild, Chair of the California Energy Commission, has accepted our invitation to address the IFBF. He explained the background to California’s Long Duration Energy Storage initiative and the need to have diversity in energy storage systems, with 6 different non-lithium long duration technologies under development and demonstration. Under the CEC’s guidance, California has one of the boldest programmes in the world for supporting new energy technologies. 
We also had a keynote address from Viktor Horváth, Deputy State Secretary for the Energy Transition of Hungary, on the topic of diverse energy storage technologies for the energy transition.
Users and operators of storage including Verbund, Energie Burgenland, EDF and EDP Renewables talked about the role of flow batteries and energy storage in their operations, and we also heard from Rongke Power on the challenges and operational performance of their flow batteries in China. Going back to Europe, Flexbase, expanded on their plans for a 100 MW plus flow battery in Switzerland.
But energy storage is also diverse and can be distributed, so we also included smaller scale installations, and a range of technology types. With our eyes on the skies, we closed with a report on flow batteries in space by Fraunhofer UMSICHT, and the news of a programme funded by the German Space Agency.
Do you want to watch the video recordings and download PPT presentations, book of papers, posters in PDF, list of delegates, and much more? Click here if you are already registered or purchase your post-event ticket here!
See you in Budapest in June 2026 for the 16th edition of the IFBF!

Sponsors and exhibitors

IFBF conferences are an ideal opportunity for sponsors and exhibitors to promote their products and services, develop contacts and create new business. Sponsors gain increased visibility before and during the conference. Exhibitors will be on display in our dedicated exhibition area throughout the conference.

Are you interested in sponsoring and/or exhibiting at the next conference? Write us at info@flowbatteryforum.com or visit the sponsors and exhibitors page for more information.

 

IFBF 2025 Sponsors

IFBF 2025 Supporters

IFBF 2025 Media Partners

Don’t just take our word for it

One session, on operational projects and the latest research, stood out. Five of the six presenters were women and several of them PhD students, which tells a possible story of openness and academic interest in an industry with a future.

BEST Magazine, IFBF 2023

Thank you for putting on such a great conference. For a week, it truly becomes the global center of our corner of the energy storage market. I met with people that would have taken me months if I were to travel around.

Larry Zulch, CEO Invinity Energy Systems, IFBF 2023

IFBF events are a unique opportunity to interact with EVERYONE involved in flow batteries: users, manufacturers, suppliers of materials, and the research community are all there. If you are interested in flow batteries, an IFBF event is like attending 5 other conferences at once.

Bret Adams, Kainos Consulting, IFBF 2022

First time attendee. Really enjoyed the community. Good mixture of science, companies, suppliers etc. for a broad band of topics. Looking forward to next year.”

Flow Battery Manufacturer, IFBF 2019

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