Top Redox Flow Battery Companies

The primary driver of growth for the global redox flow battery market is the greater integration of renewable energy sources like solar and wind into the grid, increasing the need for flexible and scalable energy storage. Redox flow batteries can provide long duration energy storage, which aids grid stability and greater use of renewable energy sources, while also addressing needs for grid modernization and the increasing focus on decarbonization.

Industry Overview

According to SkyQuest Technology “Redox Flow Battery Market By Type (Vanadium Redox Flow Battery (VRFB), Hybrid Redox Flow Battery), By Application (Utility Services, Renewable Energy Integration), By Storage Duration, By Power Rating, By End-User, By Region - Industry Forecast 2025-2032,” Global Redox Flow Battery Market is projected to grow at a CAGR of over 18.6% by 2032, on account of urgent need for automating quantified data. Increasing government support for clean energy adoption and collective investments in energy storage projects for renewables combine to offer support for market growth. Lastly, redox flow batteries have advantages that lead them to be increasingly preferred over traditional lithium-ion batteries in various applications such as industrial, utility, and renewable energy, including longer cycle life, safety, design flexibility, and minimal degradation.

Top 10 Global Redox Flow Battery Companies

1. Sumitomo Electric Industries, Ltd. (Japan)

Sumitomo Electric has been an industrial technology company since its establishment in 1897 and is headquartered in Osaka, Japan. The company is one of the oldest and most multifaceted industrial technology companies in the world. It has taken on a pioneering role in the advancement and commercialization of vanadium redox flow battery (VRFB) technology for large scale energy storage.

2. Rongke Power Co., Ltd. (China)

Founded in 2008 and located in Dalian, China, Rongke Power is a world leader in VRFB manufacturing and operates as a subsidiary of the Dalian Bolong Holding Group. The company has constructed some of the largest battery energy storage facilities in the world, including the 200 MW/800 MWh Dalian Flow Battery Energy Storage Peak-shaving Power Station, which continues to be among the largest VRFB projects worldwide.

3. ESS Tech, Inc. (USA)

Founded in 2011 and located in Wilsonville, Oregon, ESS Tech, Inc. specializes in iron-flow battery technology, which is sustainability-based technology that serves as an alternative to lithium-ion and vanadium based systems. Its patented all-iron electrolyte system enables low-cost, long-duration energy storage in an adjustable 4–12 hour system that is ideal for utilities, microgrids and commercial sites.

4. Invinity Energy Systems plc (UK)

Invinity was established in 2020 from the merger of Avalon Battery (USA) and redT Energy (UK). The company is headquartered in London and operates in North America and Canada, producing modular VFBs for commercial and industrial applications.

5. VRB Energy Inc. (Canada/China)

VRB Energy is a major producer of vanadium redox batteries that started in Canada but is now primarily based in China. VRB designs and installs energy storage solutions for renewable energy, microgrids, and for industrial projects. 

6. Primus Power Corporation (USA)

Primus Power is located in California and specializes in zinc-bromine long-duration flow batteries (up to 10 hours) that provide high reliability and safety features. Founded in the mid-2000s, the EnergyPod is used for grid support, renewable integration, and microgrid applications.

7. Enerox GmbH (CellCube) (Austria)

Enerox GmbH (operating under the brand name CellCube) is in Austria and develops vanadium redox flow energy storage systems aimed at the commercial, industrial, and grid-scale sectors. The CellCube is among the very first flow battery products with over 20 years of operation experience.

8. UniEnergy Technologies (UET) (USA)

Founded in 2012 and located in Washington State, UET acompany that develops sophisticated vanadium flow batteries for grid and renewable energy applications. UET's flagship product, the ReFlex Energy Storage System is engineered to last 20 + years in operation, and maximize roundtrip efficiency while minimizing degradation.

9. Largo Clean Energy Inc. (Canada)

Largo Clean Energy, a wholly owned subsidiary of Largo Resources, aims to incorporate vanadium mining, electrolyte production, and VRFB energy storage systems. It is a relatively new company, founded in early 2020 and much of its operations are based in Toronto. Largo's business model is aimed at having complete control over the supply chain, using vanadium ore to make finished flow battery products. Largo Clean Energy offers a VCHARGE battery system for utility and industrial end users, based on sustainability and a circular-energy based solution.

10. Redflow Ltd (Australia)

Redflow Ltd was founded in 2005 and is based in Brisbane, Australia. The company focuses on zinc-bromine flow batteries designed for commercial, telecom, and off-grid applications. Redflow's latest product, the ZBM3 battery and the ZCell system, is characterized by high safety rate, the ability to deeply discharge electricity, and robustness under hot temperature conditions. Redflow's modular systems have been adopted throughout Asia-Pacific, North America, and Africa and have been growing in usage telecommunications and remote renewable applications.

Other Leading Global Redox Flow Battery Companies

• SCHMID Group
• H2, Inc.
• StorEn Technologies Inc.
• VoltStorage GmbH
• HydraRedox Iberia S.L.
• Avalon Battery Corporation
• JenaBatteries GmbH
• ViZn Energy Systems
• Vionx Energy Corporation
• CMBlu Energy AG
• EverFlow Energy GmbH
• Ashlawn Energy LLC

Conclusion

In summary, the global redox flow battery market is set to grow significantly given the global urgency to transition to sustainable and resilient energy systems. Its benefits of scale, long lifespan, and ability to provide stable energy storage for renewable variable sources will make it an important technology in the modern energy power system infrastructure. The continuing advances in electrolyte chemistry, material innovation, and system efficiency will further improve performance and lower costs, with solid government policies to support renewable energy investment, and in response to the global objective to achieve carbon neutrality. The drivers are expected to accelerate the adoption of Redox Flow Batteries in the utility, industrial, and commercial markets in the years ahead.