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Technologies

Dutch long-duration energy storage project targets sub-€50/kWh costs with innovative technologies The SLDBatt project brings together TRL 7 battery technologies – including molten sodium‑salt, saltwater acid–base flow, and hydrogen–iron flow batteries – to deliver an innovative and cost-effective long-duration energy storage solution.

16 hours ago

Flow batteries

Cambridge startup claims its electrolytes can triple flow battery energy density A startup led by Cambridge University scientists and the former chair of Oxford PV is attempting to commercialize flow battery electrolytes with greater energy density than vanadium-based batteries. Kodiaq Technologies claims its electrolytes can be deployed as a drop-in solution for redox flow batteries.

Jan 07, 2026

Flow batteries

China connects world’s largest vanadium flow battery project Gigawatt-hour scale long-duration energy storage (LDES) project is expected to reduce curtailment in Xinjiang, a region of China with high solar and wind generation, and transmission bottlenecks. The flow battery installation is co-located with a PV plant.

Jan 07, 2026

Supply chain

What’s next for battery technology in 2026 Longer-duration storage, safety-driven procurement and Foreign Entity of Concern (FEOC) compliance in the United States compliance are starting to push alternative chemistries closer to scale.

Jan 02, 2026

Flow batteries

Prolux Solutions recalls vanadium redox flow home storage systems and switches to LFP Germany's Prolux Solutions is recalling all its Storac home energy storage systems and phasing out vanadium redox flow technology. The company will instead rely on lithium iron phosphate in the future.

Dec 05, 2025

Flow batteries

Western Australia plans 10-hour flow battery to boost power reliability The Western Australia government is looking to deploy a vanadium flow battery energy storage system with up to 10 hours of discharge capacity to help improve regional power reliability in the state’s Goldfields region.

Nov 27, 2025

Flow batteries

Australian 1.2 GWh vanadium flow battery project moves ahead with China’s Enerflow as supplier China’s Enerflow will partner with Australia’s JENMI to jointly develop a 350MW/1,200MWh long-duration storage project, marking a major step for vanadium flow technology in the Australian grid.

Nov 25, 2025

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All Flow batteries news

Flow batteries

US startup unveils zinc-polyiodid redox flow battery with energy density of 320 Wh/L BESSt announced that its new redox flow battery technology delivers 20 times the energy density of conventional vanadium flow storage systems. The battery is based on a zinc–polyiodide redox flow chemistry developed by the Pacific Northwest National Laboratory.

Emiliano Bellini

Sep 29, 2025

Flow batteries

Swiss membrane-free redox flow battery company lands $17m early-stage funding Thalwil-based Unbound Potential has secured a €14.4 million ($16.9 million) funding package for its nascent technology which includes €8 million of public grants.

Sep 22, 2025

Finance

New wave of funding powers US battery tech and projects XL Batteries has secured backing to commercialize flow battery systems which use an organic electrolyte, rather than vanadium, and two utility-scale developers have landed extensive credit lines.

Sep 19, 2025

Grid-scale

Storage investment: Standalone batteries changing the market Redelfi has placed standalone battery energy storage systems (BESS) at the center of its development model, abandoning the renewable energy community (CER) business. pv magazine Italia discussed that decision – and Redelfi's market vision – with a company that wants 1 GW of capacity greenlit by next year.

Lara Morandotti

Sep 10, 2025

Flow batteries

German iron-salt battery business Voltstorage to close The company's principal technologist said the technology delivered but 'market adversity, investment cycles, and strategic decisions' prompted the move.

Sandra Enkhardt

Aug 29, 2025

Flow batteries

Sumitomo Electric supplies flow battery for AI-led smart energy trial in Japan Sumitomo Electric Industries has installed a vanadium redox flow battery at Osaka Metropolitan University as part of a trial to optimize solar use and energy storage with AI. The project combines the battery with Kansai Electric Power’s cloud-based control platform.

Brian Publicover

Aug 06, 2025

Flow batteries

US bets on fire-resilient batteries in latest $15m storage awards Non-lithium chemistry stands out as an attractive option for fire-resilient devices.

Jul 10, 2025

Flow batteries

China completes world’s largest vanadium flow battery plant A giant solar-plus-vanadium flow battery project in Xinjiang has completed construction, marking a milestone in China's pursuit of long-duration, utility-scale energy storage.

Jul 04, 2025

R&D

US DOE awards $14m for unique energy storage systems for critical facilities and infrastructure The US Department of Energy's (DoE) Critical Facility Energy Resilience (CiFER) fund will back an organic quinone flow battery and an iron and sodium long duration energy storage (LDES) system in California, plus a lithium battery with a novel cathode material in New York state.

Jul 04, 2025

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