Water Electrolysis Market Report 2025, Size, Share, Opportunities


What Is the Current Size and Annual Growth Rate of the Water Electrolysis Market?
The water electrolysis market size has grown strongly in recent years. It will grow from $8.46 billion in 2025 to $9.26 billion in 2026 at a compound annual growth rate (CAGR) of 9.4%. The growth in the historic period can be attributed to expansion of industrial hydrogen demand, availability of grid-connected electricity, early adoption of alkaline electrolysis technology, growth of chemical and refining industries, initial renewable energy integration.

The water electrolysis market size is expected to see strong growth in the next few years. It will grow to $13.16 billion in 2030 at a compound annual growth rate (CAGR) of 9.2%. The growth in the forecast period can be attributed to rising investments in hydrogen economy, increasing government decarbonization targets, expansion of renewable power capacity, growing adoption of hydrogen in mobility and storage, continuous reduction in electrolyzer costs. Major trends in the forecast period include expansion of green hydrogen production projects, rising adoption of pem and alkaline electrolyzers, growing integration with renewable energy sources, increasing focus on electrolyzer efficiency improvements, deployment of large-scale industrial electrolysis systems.

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Which Market Forces Are Stimulating Growth in the Water Electrolysis Market?
The rising demand for hydrogen production is expected to propel the growth of the water electrolysis market going forward. Hydrogen production refers to the process of generating hydrogen gas through various methods such as electrolysis, steam methane reforming, and biomass gasification. Hydrogen production is driven by the growing global emphasis on reducing carbon emissions and transitioning to cleaner energy sources. Water electrolysis helps in hydrogen production by using electricity to split water into hydrogen and oxygen, providing a clean and sustainable way to generate hydrogen fuel, especially when powered by renewable energy sources. For instance, in October 2024, according to the International Energy Agency (IEA), a France-based intergovernmental organization, global hydrogen production reached 97 million tonnes in 2023, of which less than 1% was produced through low-emissions pathways. The IEA also reported that installed water-electrolyser capacity rose to 1.4 GW by the end of 2023 and is expected to reach 5 GW by the end of 2024, with China accounting for nearly 70% of the committed additions. Therefore, the rising demand for hydrogen production is driving the growth of the water electrolysis market.

How Is the Water Electrolysis Market Categorized Based on Key Segments?
The water electrolysis market covered in this report is segmented –

1) By Product Type: Alkaline Electrolyzer, Proton Exchange Membrane (PEM) Electrolyzer, Solid Oxide Electrolyzer Cell (SOEC), Anion Exchange Membrane (AEM) Electrolyzer
2) By Input Power: Below 2 kW, 2 kW - 5 kW, Above 5 kW
3) By Hydrogen Production: Below 500 L/hr, 500 – 2000 L/hr, Above 2000 L/hr
4) By End-User Applications: Ammonia Production, Methanol Production, Refining Industry, Power and Energy Storage, Transportation Or Mobility Industry, Other End User Applications

Subsegments:
1) By Alkaline Electrolyzer: Liquid Alkaline Electrolyzers, Pressurized Alkaline Electrolyzers, High-Temperature Alkaline Electrolyzers
2) By Proton Exchange Membrane (PEM) Electrolyzer: Low-Temperature PEM Electrolyzers, High-Temperature PEM Electrolyzers, Compact PEM Electrolyzers
3) By Solid Oxide Electrolyzer Cell (SOEC): Intermediate Temperature SOEC, High-Temperature SOEC, SOEC with Integrated Heat Recovery
4) By Anion Exchange Membrane (AEM) Electrolyzer: AEM Electrolyzers for Water Splitting, High-Performance AEM Electrolyzers, AEM Electrolyzers with Improved Durability

What Are the Most Prominent Trends Impacting the Water Electrolysis Market?
Major companies operating in the water electrolysis market are prioritizing the development of innovative products, such as proton exchange membrane (PEM) water electrolyzers to enhance hydrogen production efficiency and reduce energy consumption. Proton exchange membrane (PEM) water electrolyzers refer to devices that use a solid polymer electrolyte to separate water into hydrogen and oxygen through an electrochemical process, offering high efficiency and flexibility in hydrogen production. For instance, in March 2024, Sungrow Power Supply Co. Ltd., a China-based manufacturing company, launched 300Nm³/h PEM Water Electrolyzer. The 300Nm³/h PEM Water Electrolyzer generates 300Nm³ of hydrogen per hour with high efficiency, consuming less than 4.15kWh/Nm³. It is designed for flexible hydrogen production using renewable energy sources, ensuring optimal operation in dynamic scenarios.

Who Are the Established and Emerging Companies Competing in the Water Electrolysis Market?
Major companies operating in the water electrolysis market are Robert Bosch GmbH, ThyssenKrupp AG, Siemens Energy AG, Linde AG, Toshiba Energy Systems & Solutions Corporation, Cummins Inc., Sungrow Power Supply Co. Ltd., LONGi Green Energy Technology Co. Ltd., Plug Power Inc., Sunfire GmbH, Nel ASA, Ohmium International Inc., Shandong AUYAN New Energy Technology Co. Ltd., HydrogenPro ASA, Ceres Power Holdings plc, McPhy Energy SA, Horizon Fuel Cell Technologies Pte Ltd, ITM Power PLC, Giner ELX Inc., SES Hydrogen, Enapter AG, Elogen SAS, Next Hydrogen Solutions Inc., CAPLINQ Corporation, GreenH Electrolysis

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Which Region Is Expected to Dominate the Water Electrolysis Market During the Forecast Period?
Europe was the largest region in the water electrolysis market in 2025. North America is expected to be the fastest-growing region in the forecast period. The regions covered in the water electrolysis market report are Asia-Pacific, South East Asia, Western Europe, Eastern Europe, North America, South America, Middle East and Africa.

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