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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.

Jan 14, 2026

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

pv magazine Global Winter Edition 2025

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Battery Business & Development Forum 2026

Connect with Europe’s energy storage leaders at the Battery Business & Development Forum 2026 in Frankfurt and gain insights into evolving business models, financing strategies, and market trends. Register by November 27 to secure the Early Bird rate.

March 31 – April 1, 2026 | In Person Event

SunRise Arabia Conference 2026

SunRise Arabia Clean Energy Conference 2026

Saudi Arabia is accelerating its clean energy transition. Join the third SunRise Arabia Clean Energy Conference in 2026 to explore how solar PV and energy storage are powering the Kingdom’s growing digital economy, including data centers. Policymakers, investors, and innovators will share insights on technology, deployment strategies, and long-term value creation in Saudi Arabia’s evolving energy landscape.

April 22, 2026 | Riyadh, Saudi Arabia

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All Flow batteries news

Flow batteries

Testing begins on 20 MWh, ‘Europe’s largest’ vanadium redox flow battery Fraunhofer ICT says the pilot facility has demonstrated how clean energy can feed the grid regardless of weather conditions.

Pilar Sanchez Molina

Jul 01, 2025

Tenders

Invinity flow batteries selected for nine 400 MWh-plus UK storage bids Of 171 bids, nine included flow batteries from Invinity Energy Systems, each with a 400 MWh or more capacity.

Jun 24, 2025

Opinion & Analysis

How organic flow batteries could erase the need for critical-mineral dependency Vanadium flow and lithium-ion batteries both require materials described as critical by the US Department of Energy (DOE).

Jun 05, 2025

Flow batteries

Swiss developer breaks ground on 1.6 GWh redox flow storage project The redox flow project has enormous storage capacity, expected to be finished in mid-2028.

Sandra Enkhardt

May 23, 2025

Flow batteries

Organic flow batteries launch in US data center deployment Prometheus Hyperscale and XL Batteries partner to roll out long-duration, lithium-free energy storage for a Wyoming data center.

May 15, 2025

Flow batteries

Flow battery startup VFlowTEch banks $20.5M as ramp up continues The Singaporean company is working on long duration storage and received wide backing from a variety of investors.

May 14, 2025

Supply chain

Dutch manufacturer makes switch from bromine to iron flow batteries due to ‘geopolitical turbulence’ Netherlands-based Elestor has announced it will move from hydrogen-bromine to hydrogen-iron flow batteries because of the worsening geopolitical situation.

May 07, 2025

Flow batteries

Scientists in UK build solar redox flow battery with 9.54% solar-to-chemical efficiency The PV-driven redox flow battery can reportedly achieve a maximum solar-to-output electricity efficiency (SOEE) of 3.11% during a 36-hour period. The system incorporates a 25 sq cm heterojunction (HJT) photovoltaic device and is based on a neutral-pH aqueous iodine-bromine redox couple.

Emiliano Bellini

May 06, 2025

Flow batteries

XL Batteries launches grid-scale organic flow battery project With no rare metals or fire risk, the Massachusetts startup is pushing a new model for long-duration energy storage.

Apr 10, 2025

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