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Flow batteries

Energy security push highlights need for long-duration storage Energy storage is essential to ensuring grid stability as demand grows for intermittent renewables, like solar PV. Different options are gaining traction, supported by international standards.

Adrian Pennington

14 hours ago

Manufacturing

Invinity supplies large-scale vanadium flow storage for Flexbase project in Switzerland The Flexbase Group is currently building a large data center for artificial intelligence in Laufenburg, along with a flow battery with a capacity of 800 MW and 1600 MWh. This vanadium flow battery will be supplied by the British-Canadian company Invinity.

May 22, 2026

Flow batteries

SoftBank to make next-gen zinc-halogen battery cells in Japan for AI data centers SoftBank's mobile arm is gearing up to scale the intriguing zinc-halogen battery cell chemistry to 1 GWh annual production.

May 11, 2026

Flow batteries

VRF long-duration batteries answer demands of electricifation: Eora Energy Sydney-headquartered vanadium redox flow battery company EORA Energy has launched in Australia with a pipeline of long-duration energy storage projects in mining, data centres and regional infrastructure.

Apr 09, 2026

R&D

Titanium emerges as a vanadium alternative for redox flow batteries A Japanese-Chinese team developed a titanium molten salt redox-flow battery using abundant titanium ions and molten salt electrolytes to enable high-voltage, fast, and stable grid-scale energy storage. The system demonstrates high efficiency of over 97%, strong cycling stability, and improved cost and scalability compared to vanadium-based batteries, with further optimization underway.

Emiliano Bellini

Apr 08, 2026

Grid-scale

Vanadium flow and lithium-ion combine in world’s largest grid-forming hybrid storage plant in China China brings online 300 MW/1,200 MWh grid-forming energy storage facility in Inner Mongolia, integrating lithium-ion and vanadium flow battery technologies.

Feb 27, 2026

Flow batteries

AVL partners with Sumitomo in bid for Western Australia’s 500 MWh vanadium battery project Perth-headquartered resources and technology company Australian Vanadium Limited’s subsidiary VSUN Energy will partner with Japanese manufacturer Sumitomo Electric Industries in its bid to develop Western Australia’s planned 500 MWh Kalgoorlie vanadium battery project.

Feb 23, 2026

pv magazine Focus 2026 announcement box

pv magazine Focus 2026

1-Day Conference

High-level discussions on solar and energy storage across Europe. Experts explore how to plan and execute bankable BESS projects, what quality and warranty factors matter, and how energy management systems optimize residential and C&I applications, including heat pumps, EV charging, and new market opportunities.

1:00 – 5:00 pm, CEST | June 24, 2026

The smarter E Europe, ICM Conference Center | Munich, Germany

Register For Free

pv magazine Awards 2026

pv magazine Awards 2026

Window is open now!

Entries open in seven categories: Modules, Inverters, BoS, BESS, Manufacturing, Sustainability, Projects.

April 01 – August 31, 2026

SunRise Arabia Update Announcement Box

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.

9:00 am – 6:00 pm, AST | September 30, 2026

Riyadh, Saudi Arabia

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All Flow batteries news

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

Flow batteries

Smoke and vanadium leak from Swiss home energy storage unit Vanadium redox flow energy storage manufacturer Prolux Solutions said 50 l of vanadium electrolyte leaked from a residential unit in Arbon but no fire occurred.

Sandra Enkhardt

Apr 09, 2025

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