Flow Battery Market Report 2026

The flow battery market size has grown rapidly in recent years. It will grow from $0.83 billion in 2025 to $0.93 billion in 2026 at a compound annual growth rate (CAGR) of 12%. The growth in the historic period can be attributed to growth in renewable energy installations, early grid stabilization requirements, limitations of lithium-ion batteries for long duration storage, increasing research funding for alternative batteries, pilot-scale deployment of vanadium flow batteries.

The flow battery market size is expected to see rapid growth in the next few years. It will grow to $1.41 billion in 2030 at a compound annual growth rate (CAGR) of 10.9%. The growth in the forecast period can be attributed to rising demand for long duration energy storage, expansion of grid-scale energy storage projects, declining cost of flow battery components, increasing focus on grid resilience and reliability, supportive government policies for energy storage. Major trends in the forecast period include utility-scale long duration energy storage deployment, integration of flow batteries with renewable energy systems, advancements in electrolyte chemistry and stack design, rising adoption of modular and scalable energy storage solutions, growing focus on safe and non-flammable battery technologies.

The growth of the flow battery market is expected to be propelled by the increasing adoption of solar and wind power. This trend is driven by the global demand for sustainable energy solutions to combat climate change and reduce dependence on fossil fuels. Flow batteries offer significant advantages for storing solar and wind energy, including scalability, long cycle life, and the ability to store energy over extended periods, thereby supporting grid stability and efficient integration of renewable energy sources. For example, the Energy Information Administration reported in January 2024 that solar power generation in the United States is forecasted to increase by 75%, reaching 286 billion kilowatt hours (kWh) by 2025, up from 163 billion kWh in 2023. Thus, the rising adoption of solar and wind power is a key driver for the flow battery market.

Leading companies in the flow battery market are focusing on the development of advanced solutions such as energy storage systems designed to store and discharge electrical energy. Energy storage solutions refer to technologies and systems that capture and store energy to balance supply and demand within energy systems, improving the reliability and efficiency of power distribution. For example, in September 2024, Delectrik Systems Private Limited, an India-based manufacturer specializing in decentralized electricity systems, introduced a 10 MWh vanadium flow battery-based energy storage system (ESS). This technology is well-suited for large energy sector developers, as it can generate approximately 200 MWh of energy per acre and has a capacity of 2 MW/10 MWh over a five-hour duration. This product could play a key role in grid stabilization, enhancing energy management, and supporting the transition to a more sustainable energy future.

In December 2023, AMG Critical Materials, based in the Netherlands, acquired vanadium redox flow battery (VRFB) assets from the Voith Group, a German technology company, for an undisclosed sum. This acquisition positions AMG Critical Materials strategically by diversifying into energy storage solutions, enhancing its portfolio with innovative technology, and capitalizing on the growing market demand for grid-scale energy storage solutions.

Major companies operating in the flow battery market are Lockheed Martin Corporation, Sumitomo Electric Industries Ltd., Stryten Energy, SCHMID Group, Imergy Power Systems, Largo Inc., Primus Power, VoltStorage, ViZn Energy Systems, VRB Energy, CellCube Energy Storage Systems Inc., Kemiwatt, EnSync Energy Systems, Elestor, Enervault, H2 Inc., Invinity Energy Systems, JenaBatteries GmbH, Redflow Limited, ESS Inc., Prudent Energy.

Note that the outlook for this market is being affected by rapid changes in trade relations and tariffs globally. The report will be updated prior to delivery to reflect the latest status, including revised forecasts and quantified impact analysis. The report’s Recommendations and Conclusions sections will be updated to give strategies for entities dealing with the fast-moving international environment.

Tariffs have influenced the flow battery market by increasing costs for imported components such as membranes, electrolytes, and power conditioning systems, impacting overall system pricing and deployment timelines. These effects are most visible in utility-scale and industrial energy storage projects, particularly in regions dependent on cross-border supply chains such as Asia-Pacific and Europe. Higher tariffs have slowed some large-scale installations while encouraging manufacturers to localize component production. In the long term, tariffs are supporting domestic manufacturing capabilities and strengthening regional flow battery supply ecosystems.

The flow battery market research report is one of a series of new reports that provides flow battery market statistics, including flow battery industry global market size, regional shares, competitors with a flow battery market share, detailed flow battery market segments, market trends and opportunities, and any further data you may need to thrive in the flow battery industry. This flow battery market research report delivers a complete perspective of everything you need, with an in-depth analysis of the current and future scenario of the industry.

A flow battery is a rechargeable battery type that stores energy in liquid electrolytes held in external tanks, enabling scalable energy storage solutions. These batteries function by circulating electrolytes through electrochemical cells to generate electricity, offering flexibility in capacity and power output suitable for diverse applications such as grid energy storage and renewable energy integration.

The main types of flow batteries are redox and hybrid. Redox flow batteries store electrical energy in chemical solutions housed in tanks and release it through a chemical reaction. Key components include membranes, power conditioning systems (PCS), heat exchangers, graphite felt, bipolar plates, among others. Materials used include vanadium redox flow batteries, zinc-bromine flow batteries, iron flow batteries, and zinc-iron flow batteries. These batteries support both compact and large-scale storage solutions and find applications across utility, automotive, residential, industrial, and energy storage sectors.North America was the largest region in the flow battery market in 2025. Asia-Pacific is expected to be the fastest-growing region in the forecast period. The regions covered in the flow battery market report are Asia-Pacific, South East Asia, Western Europe, Eastern Europe, North America, South America, Middle East, Africa. The countries covered in the flow battery market report are Australia, Brazil, China, France, Germany, India, Indonesia, Japan, Taiwan, Russia, South Korea, UK, USA, Canada, Italy, Spain.

The flow battery market consists of sales of polysulfide-bromide flow batteries, hydrogen-bromine flow batteries, sodium-sulfur flow batteries, lithium-ion flow batteries, and hybrid flow batteries. Values in this market are ‘factory gate’ values, that is, the value of goods sold by the manufacturers or creators of the goods, whether to other entities (including downstream manufacturers, wholesalers, distributors, and retailers) or directly to end customers. The value of goods in this market includes related services sold by the creators of the goods.

The market value is defined as the revenues that enterprises gain from the sale of goods and/or services within the specified market and geography through sales, grants, or donations in terms of the currency (in USD unless otherwise specified).

The revenues for a specified geography are consumption values that are revenues generated by organizations in the specified geography within the market, irrespective of where they are produced. It does not include revenues from resales along the supply chain, either further along the supply chain or as part of other products.

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