International Flow Battery Forum 2025
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International Flow Battery Forum 2025

Let's talk flow batteries!
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See you in Budapest in June 2026 for the International Flow Battery Forum

The 15th edition of the International Flow Battery Forum took 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.  

VIRTUAL HUB AND NETWORKING PLATFORM
On the IFBF networking platform, both in-person and virtual IFBF participants can connect with the other delegates, find information on the IFBF sponsors and exhibitors, read the programme, follow the live streaming and video recordings, download posters and slides of the presentations, and more...

The IFBF Virtual Hub is available to registered participants until 24 September 2025!
Join the Virtual Hub: https://www.accelevents.com/e/International-Flow-Battery-Forum-2025/portal
Purchase a Post-Event ticket: https://www.accelevents.com/e/u/checkout/International-Flow-Battery-Forum-2025/tickets/order


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!



OUR SPONSORS and EXHIBITORS









Show up and Stand out!  IFBF 2025 brings together 300+ industry professionals from around the world, along with 20 exhibition booths featuring key players in the sector. IFBF is your chance to get noticed and make connections.

Do you want to sponsor and/or exhibit in 2026? Download our Sponsorship Brochure from 2025 to have an idea and contact us!

Official website: 
For more information on the International Flow Battery Forum, please visit its official website: www.flowbatteryforum.com 



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Official website: 
For more information on the International Flow Battery Forum, please visit its official website: www.flowbatteryforum.com 




CLERENSOrganizer of International Flow Battery Forum 2025

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