Global Water Electrolysers Research Report 2025 (Status and Outlook)
Report Overview:
Water electrolysers are devices designed to split water molecules into hydrogen and oxygen gases through the application of an electrical current. This process, known as water electrolysis, is fundamental to the production of clean hydrogen, which serves as an energy carrier, industrial feedstock, and a pathway to decarbonize various sectors. Electrolysers come in several configurations, such as alkaline electrolysers, proton exchange membrane (PEM) electrolysers, and solid oxide electrolysers, each offering unique advantages in terms of efficiency, scalability, operating conditions, and cost. Their adoption is closely tied to the availability of low-carbon electricity, as renewable-powered electrolysis is the key to producing green hydrogen, which is increasingly positioned as a cornerstone of the global energy transition.
In recent years, driven by both technological progress and market dynamics, the global electrolyser market has undergone significant transformation. Globally, and particularly in China, electrolyser prices have fallen sharply—nearly 50% over the past three years—primarily due to streamlined procurement, economies of scale from larger production capacities, and intense competition among an increasing number of domestic suppliers. This price decline has enhanced the cost competitiveness of green hydrogen projects, gradually approaching the cost of conventional fuels. At the same time, market competition is shifting from purely price-driven to a more strategic level, encompassing upstream innovations in core materials—such as low-platinum or platinum-free PEM catalysts, advanced membrane technologies, and anion exchange systems—as well as downstream capabilities in system integration, renewable energy coupling, and end-use applications. Companies that can provide full value-chain solutions from green electricity to hydrogen production, storage, and distribution are emerging as long-term winners, while those focused on single components face increasing pressure.
By 2024, the global water electrolyser market had reached USD 2,408.99 million and is expected to expand at a CAGR of 16.15% from 2025 to 2035, reaching USD 9,167.79 million. Large-scale government investments and national hydrogen strategies in major economies have established clear policy frameworks, with incentives, certifications, and carbon pricing mechanisms effectively transforming green hydrogen from an optional commodity to a compliance necessity. Regulatory support and rapid technological advancement are mutually reinforcing: besides the mature alkaline (ALK) technology, PEM electrolyser capacity and efficiency continue to improve, while anion exchange membrane (AEM) technology emerges as a promising non-precious metal alternative, and ongoing innovation in catalysts and materials is reducing unit costs. Meanwhile, substantial capital inflows, especially in China, are accelerating cost reductions and capacity expansion, although this temporarily creates overcapacity and price pressure. Additionally, the diversification of hydrogen applications—from industrial feedstock and deep decarbonization in chemical and steel production to transportation, energy storage, and building sectors—further strengthens market demand, with each new application broadening growth potential.
Segmented by type, water electrolysers include alkaline and PEM electrolysers, among others. Alkaline electrolysers, due to their mature technology, lower investment costs, and reliability, dominated the market in 2024 with a 63% share, making them the preferred choice for large-scale industrial applications. However, their growth rate is slightly lower than that of PEM electrolysers, with CAGRs of 14.8% and 17.8%, respectively. PEM technology is increasingly used in projects requiring high efficiency, fast response to renewable energy fluctuations, and high-purity hydrogen. Furthermore, policy support, declining renewable electricity costs, and growing ESG-driven demand from end-users are accelerating the adoption of PEM systems.
From an application perspective, the electrolyser market is diverse and rapidly growing across multiple end-use sectors, driven by decarbonization policies and the rising adoption of green hydrogen. By 2024, power plants are expected to account for 25% of the market, reflecting the use of electrolysers in renewable-heavy energy systems to balance grid fluctuations and provide long-term storage. Industrial applications such as steel plants and industrial gases collectively account for over 33% of the market, highlighting hydrogen’s critical role in reducing carbon intensity in hard-to-abate sectors. Driven by increasing mobility demand, decentralized energy systems, and seasonal storage needs, hydrogen refueling stations and power-to-gas solutions exhibit higher CAGRs of 17.7% and 18.7%, respectively.
From a geographic perspective, the electrolyser market shows significant regional variation in both current revenue and projected growth. Asia-Pacific dominates, with a projected 54% market share by 2024, largely driven by China’s proactive green hydrogen policies, abundant renewable resources, and substantial industrial demand, making it the main growth engine globally. Europe, while smaller in 2024 share, is expected to maintain the highest CAGR through 2035, exceeding 22%, reflecting aggressive decarbonization policies, localization requirements, and a regulatory framework encouraging industrial and transport deployment of electrolysers and integration of green hydrogen. North America shows moderate growth, constrained by limited policy-driven project momentum, though U.S. incentives such as the Inflation Reduction Act (IRA) provide support, particularly for industrial and transport applications.
At the same time, despite expected explosive growth, the electrolyser market faces multiple interconnected development challenges that impede organic expansion. At the macro level, as green hydrogen remains more expensive than grey or blue hydrogen, the market is highly reliant on “external rationality,” with project economics dependent on subsidies, preferential tariffs, carbon pricing assumptions, or long-term policy commitments. This reliance, coupled with varying industry recognition of hydrogen’s value, inhibits true price discovery and leads to cyclical market fluctuations. System-level challenges further complicate market expansion: grids are not “hydrogen-friendly,” limiting access to low-cost surplus renewable electricity, while renewable intermittency creates technical and operational challenges affecting equipment lifetime and maintenance costs. Infrastructure limitations exacerbate these challenges, as hydrogen transport, storage, and refueling networks remain limited, creating a “chicken-or-egg” dilemma that requires highly coordinated capital investment across the value chain. Market maturation is slow and capital-intensive, while investor expectations change rapidly, resulting in structural mismatches that may cause overexpansion, confidence swings, and industry consolidation.
On the demand side, nominal electrolyser capacity is growing faster than actual project construction, leading to low utilization and a “hot but unconverted” market environment, exacerbating price pressure and profitability risks. Currently, planned capacity already exceeds actual demand by 15–20 GW, and if trends continue, supply-demand imbalance will persist for at least 2–3 years, leading to a severe market shakeout. Meanwhile, in November 2025, China’s Hydrogen Industry Branch of the Industry Development Promotion Association formally issued the “China Electrolyser Industry Healthy Development Initiative,” marking a turning point after a period of wild growth in capacity and price competition. Its core aim is to guide competition away from “price games” and toward “value creation,” encouraging companies to shift focus from unsustainable scale expansion and marketing hype to core technological breakthroughs, genuine product performance, and full lifecycle value—a milestone reminiscent of the photovoltaic industry’s maturation path.
Overall, the global water electrolyser market is at a critical turning point, shaped by rapid technological innovation, evolving policy frameworks, and shifting market dynamics. Despite strong growth potential, it still faces structural challenges such as overcapacity, limited infrastructure, and reliance on policy support, necessitating close coordination across the value chain. The market is transitioning from a phase of rapid expansion and price-driven competition to a more strategic, value-focused stage, where technological leadership, comprehensive value-chain solutions, and sustainability credentials will determine the long-term winners in the emerging green hydrogen economy.
Water Electrolysers Industry Chain Analysis
Key Development Trends
Increased Global Investment in Hydrogen Development
In recent years, with the continuous rise in greenhouse gas emissions and global temperatures, climate issues have become increasingly severe. To address these challenges, major countries around the world signed the Paris Climate Agreement in 2016 and have since formulated carbon reduction plans to mitigate the risks and impacts of climate change. Fossil fuels still account for a significant portion of end-use energy consumption worldwide. To achieve the 2050 goal of a global net-zero carbon economy, the global energy mix will undergo substantial transformation. According to ETC forecasts, under a zero-carbon scenario by 2050, direct electricity and hydrogen (and its derivatives) will become the two most important components of the global energy structure, accounting for 68% and 18% of total energy consumption, respectively. Hydrogen and its derivatives are expected to play a critical complementary role to direct electricity.
Following a round of hydrogen strategy adjustments, major countries and regions have now established clear and structured hydrogen development strategies and plans. In 2024, the EU, the U.S., Japan, and other regions significantly increased industrial support, deepening cross-regional collaboration. For example, the EU passed the “Hydrogen and Decarbonized Gas Market Package” in May to integrate hydrogen with existing natural gas infrastructure and ensure medium- and long-term carbon reduction targets. Key projects, such as the “European Hydrogen Backbone” (expected to connect 28 countries), have entered the planning and implementation stage, and the European Hydrogen Bank held its first auction, investing nearly €700 million to support six renewable hydrogen projects. In the U.S., seven regional hydrogen hubs were selected by the Department of Energy at the end of 2023, located in Texas, California, Oregon, etc., and received their first round of funding in 2024. In Japan, the government issued the “Hydrogen Society Promotion Act” in 2024, announcing JPY 3 trillion in subsidies for domestic and imported low-carbon hydrogen projects. At the same time, a global hydrogen trade network is emerging: the EU has signed long-term green hydrogen import agreements with Africa (Morocco, Namibia, Egypt) and the Middle East (UAE), while Japan and the EU are collaborating on international hydrogen standards to take a leading role in cross-border trade. However, economic considerations have also led to the cancellation or postponement of some projects, such as Denmark’s Orsted canceling a 55,000-ton green methanol project in Sweden, and Thyssenkrupp delaying its hydrogen-based green steel project in Duisburg, Germany.
PEM Electrolysis as a Mid-Term Focus
Compared with alkaline electrolysis systems, PEM electrolysis uses pure water rather than alkaline solution as the electrolyte, and can effectively separate hydrogen and oxygen at the cathode and anode, greatly simplifying system architecture. PEM electrolysis technology has matured and offers many advantages, including simple system structure, high hydrogen purity, high current density, high efficiency, safety, fast response, and good compatibility with wind and solar power, making it highly promising for future applications.
Water electrolysis technology is gradually shifting toward PEM. European countries are currently leading in this technology, while China is intensifying development efforts. Significant advances in PEM technology occurred from 2010 to 2022, primarily in Europe. The average unit capacity of PEM Electrolysers increased from 0.1 MW in 2000–2009 to 1.0 MW in 2015–2019, marking the transition from demonstration projects to commercial-scale applications. This scale-up creates economies of scale, reduces average hydrogen production costs, and expands the upstream hydrogen industry.
However, PEM Electrolysers operate in highly acidic and oxidative environments, requiring high reliance on precious metal catalysts such as iridium, platinum, and titanium. PEM systems also remain significantly more expensive than alkaline electrolysis, so most global renewable energy water electrolysis projects still rely on alkaline technology. Future cost reductions and increased hydrogen production capacity are crucial for the commercial scaling of PEM Electrolysers.
Significant Progress in AEM Technology
Anion exchange membrane (AEM) electrolysis technology is moving from the lab to commercialization, benefiting from the cost advantage of non-precious metal catalysts and the flexibility of solid-state electrolytes. Companies such as Enapter have achieved commercial production, while Chinese companies like Wenstone Hydrogen Energy and EVE Hydrogen Energy have quickly launched and delivered industrial-scale products with single-stack power of 1–2 MW, laying the engineering foundation for scalable applications.
Global AEM Electrolyser production is mainly represented by Enapter, Ansaldo Green Tech, and P2H2. Enapter was the first company to commercialize AEM Electrolysers and remains the only company with large-scale shipments, having developed the first modular commercial product, Electrolyser EL 2.1, in 2019, now upgraded to EL 4.0. In China, AEM projects have scaled from 5 kW in 2023 to 1.25 MW in 2024, marking a major leap forward. Wenstone Hydrogen Energy won the first global single-system 1.25 MW AEM electrolysis project, setting a record for the largest single-system AEM hydrogen project worldwide.
AEM technology has demonstrated its practical value. Deployed in renewable energy scenarios, kilowatt-to-hundred-kilowatt systems have achieved over 4,000 hours of stable operation, excellent dynamic response, and fully off-grid hydrogen production, showing potential for distributed and flexible green hydrogen systems. However, AEM must overcome two key challenges to become a mainstream alternative to alkaline and PEM routes: (1) long-term durability—megawatt-scale systems need validated lifetimes of tens of thousands of hours in real industrial conditions, and core component degradation mechanisms require ongoing R&D; (2) cost reduction—dependent on industrial chain maturity and scalable manufacturing.
Driving Factors
Investment by Major Global Economies
The expansion of the global water Electrolyser market is driven by more than just the replacement of conventional energy equipment; it signifies a broader industrial shift toward a new, renewable, and carbon-neutral energy carrier. This transition is not a simple patch to existing oil and gas systems but aims to establish a future energy architecture anchored on “green electricity” and “green hydrogen.” As of Q3 2025, 42 countries have announced hydrogen strategies, including the EU’s 2030 target of 100 GW and the Middle East’s 78 GW. Early subsidy policies focused on incubating technologies and demonstration projects, whereas current policies emphasize creating market rules that recognize, trade, and price green hydrogen premiums. Mechanisms such as the EU’s carbon border adjustment, green hydrogen certification under renewable energy directives, and the U.S. clean hydrogen production tax credits essentially internalize the “zero-carbon” externality into tradable assets. As industries such as steel, chemicals, and shipping are required by regulations or supply chain mandates to procure green hydrogen, demand for Electrolysers shifts from optional investment to compliance-driven expenditure, providing unprecedented market certainty and scale.
Technology and Capital Synergy
Single-unit hydrogen production capacity of water electrolysers is rapidly approaching the gigawatt scale, with large-scale deployment and material innovations steadily lowering unit costs. Simultaneously, forward-looking capital has surged into the sector. According to the IEA, global water electrolyser project investment in 2023 was three times that of 2022, with China showing particularly strong capacity growth—from 3 GW in 2021 to a projected 58 GW in 2025. As of August 2025, China’s cumulative signed and awarded water electrolyser orders totaled 4,380.65 MW, including 975.525 MW in awarded contracts and 3,405.125 MW in signed agreements. This investment-driven expansion accelerates cost reduction through scale effects and learning curves, bringing the green hydrogen economic tipping point closer. At the same time, the rapid capacity build-out ahead of immediate demand creates temporary oversupply, intensifying competition and lowering prices, which, while challenging manufacturers in the short term, removes a major barrier to downstream hydrogen applications.
Hydrogen Applications Across Multiple Sectors
The core driver of the water electrolysers market is the continuous expansion of hydrogen end-use scenarios, each adding incremental slopes to the demand curve and opening new growth space. Hydrogen is evolving from a chemical feedstock-dominated application to multi-sector development across transport, energy, industry, and buildings. Globally, hydrogen applications currently focus on chemical production, with smaller shares in renewable energy storage and fuel cell-based energy networks. Falling green hydrogen costs, stricter carbon regulations, and technological advancements are expected to drive profound structural change, positioning hydrogen as a key carrier for deep decarbonization. Industrial applications focus on hard-to-electrify, energy-intensive processes, with green hydrogen replacing fossil-based hydrogen for ammonia, methanol, and refining, while hydrogen-based metallurgy could reduce ironmaking emissions nearly to zero. In transport, fuel cell vehicles are emerging as the main application, with global FCV stock nearing 70,000 units by the end of 2022, concentrated in Korea, China, the U.S., and Japan. Building sector applications include hydrogen-based combined heat and power systems and pipeline blending, while wind- and solar-coupled hydrogen storage solutions enhance large-scale, long-duration energy storage economically.
Global Water Electrolysers Market: Market Segmentation Analysis
The research report includes specific segments by region (country), manufacturers, Type, and Application. Market segmentation creates subsets of a market based on product type, end-user or application, Geographic, and other factors. By understanding the market segments, the decision-maker can leverage this targeting in the product, sales, and marketing strategies. Market segments can power your product development cycles by informing how you create product offerings for different segments.
Key Company
PERIC
Cummins
Nel Hydrogen
Siemens
Suzhou Jingli Hydrogen Equipment
Jiangsu Guofu Hydrogen Energy Equipment
SUNGROW
Trina Green
LONGi Hydrogen
TianJin Mainland
Hygreen Energy
CIMC Hydrogen
Ally Hi-Tech Co.,Ltd
ITM Power
Sany Group
Shanghai Electric
McPhy Energy
Kobelco Eco-Solutions
Shuangliang Group
Others
Market Segmentation (by Type)
Alkaline Electroliser
PEM Electroliser
Others
Market Segmentation (by Application)
Power Plants
Steel Plant
Electronics and Photovoltaics
Industrial Gases
Hydrogen Refueling Stations
Power to Gas
Others
Geographic Segmentation
North America
Europe
Asia-Pacific
South America
Middle East and Africa
Key Benefits of This Market Research:
• Industry drivers, restraints, and opportunities covered in the study
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• Recent industry trends and developments
• Competitive landscape & strategies of key players
• Potential & niche segments and regions exhibiting promising growth covered
• Historical, current, and projected market size, in terms of value
• In-depth analysis of the Water Electrolysers Market
• Overview of the regional outlook of the Water Electrolysers Market:
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Chapter Outline
Chapter 1 mainly introduces the statistical scope of the report, market division standards, and market research methods.
Chapter 2 is an executive summary of different market segments (by region, product type, application, etc), including the market size of each market segment, future development potential, and so on. It offers a high-level view of the current state of the Water Electrolysers Market and its likely evolution in the short to mid-term, and long term.
Chapter 3 makes a detailed analysis of the Market's Competitive Landscape of the market and provides the market share, capacity, output, price, latest development plan, merger, and acquisition information of the main manufacturers in the market.
Chapter 4 is the analysis of the whole market industrial chain, including the upstream and downstream of the industry, as well as Porter's five forces analysis.
Chapter 5 introduces the latest developments of the market, the driving factors and restrictive factors of the market, the challenges and risks faced by manufacturers in the industry, and the analysis of relevant policies in the industry.
Chapter 6 provides the analysis of various market segments according to product types, covering the market size and development potential of each market segment, to help readers find the blue ocean market in different market segments.
Chapter 7 provides the analysis of various market segments according to application, covering the market size and development potential of each market segment, to help readers find the blue ocean market in different downstream markets.
Chapter 8 provides a quantitative analysis of the market size and development potential of each region and its main countries and introduces the market development, future development prospects, market space, and capacity of each country in the world.
Chapter 9 details the production of products in major countries/regions and provides the production of major countries/regions.
Chapter 10 introduces the basic situation of the main companies in the market in detail, including product sales revenue, sales volume, price, gross profit margin, market share, product introduction, recent development, etc.
Chapter 11 provides a quantitative analysis of the market size and development potential of each region in the next five years.
Chapter 12 provides a quantitative analysis of the market size and development potential of each market segment (product type and application) in the next five years.
Chapter 13 is the main points and conclusions of the report.
