Published on 31st March 2023
Hydrogen is a key component of the clean energy transition.
A major challenge of the global energy revolution is to ensure large-scale availability of hydrogen for low-carbon chemical and fuel production, as well as green steel production and energy supply.
Hydrogen electrolyzers are indispensable for producing low-cost, high-quality hydrogen used in a wide variety of applications.
Continue reading to learn more about the global leaders in hydrogen electrolyzer manufacturing.
Table of Contents
Global Top 20 Hydrogen Electrolyzer Manufacturers 
China Shipbuilding Heavy Industry Corporation’s 718th Research Institute (PERIC)
Green Hydrogen Systems
Haldor Topsøe A/S
ITM Power PLC
MAN Energy Solutions
Ohmium International, Inc.
Plug Power Inc.
Siemens Energy AG
Sungrow Power Supply Co., Ltd.
Blackridge Research & Consulting – Global Electrolyzer Market Report
Here are the world’s leading hydrogen electrolyzer manufacturers (listed alphabetically):
Location: San Jose, California, United States
Bloom Energy is a green energy company that manufactures and markets solid oxide fuel cells for producing electricity on-site.
Leveraging decades of solid oxide experience, the company has developed “the world’s most efficient hydrogen electrolyzer” (source: company website) with a modular design that allows for continuous operations and concurrent maintenance.
In addition, Bloom Energy ensures a robust supply chain base with over 2 GW of electrolyzer production capacity. Moreover, the absence of oxygen in the hydrogen stream eliminates the need for deoxygenation units.
Location: Handan, Hebei Province, China
Purification Equipment Research Institute of CSIC (PERIC) is a state-level R&D institute with integrated capabilities in R&D, design and manufacture, and H2 generation service.
PERIC also has a huge manufacturing base for alkaline and PEM water electrolysis. Its wide product portfolio includes hydrogen-rich water generator, containerized-type H2 generator, and PEM-type H2 generator.
Location: Columbus, Indiana, United States
Cummins’ HyLYZER® - 1000 is an exceptionally compact, modular water electrolyzer system based on PEM water electrolysis technology and is compliant with the highest safety standards.
As part of its commitment to furthering the green hydrogen economy globally, Cummins Inc. will supply a 2.5-megawatt electrolyzer to HysetCo—a hydrogen joint venture established by Air Liquide, Idex, STEP, and Toyota. The electrolyzer will support HysetCo’s ambitious project to develop and operate the world’s first large-scale hydrogen mobility platform.
Location: Crespina Lorenzana (PI), Italy
Enapter has developed plug-and-play electrolyzers for manufacturing at scale and deploying across the world in various green hydrogen projects. Enapter’s modular and stackable electrolyzers cover all hydrogen needs-from deploying single modules to combining many electrolyzers.
Enapter AEM Electrolyzer EL 4.0’s key features include:
Location: Kolding, Syddanmark, Denmark
Green Hydrogen Systems (GHS) designs and manufactures electrolyzers for green hydrogen production. While HyProvide™ A-Series alkaline electrolyzers (for projects up to 4.5 MW) are available in modular and standardized configurations, the HyProvide™ X-Series is optimized for large-scale applications (above 4.5 MW and beyond 100 MW).
As part of a wind-to-hydrogen project, a GHS HyProvide™ A-Series electrolyzer is connected to a Siemens Gamesa 3 MW wind turbine near Brande, Denmark, for island-mode production of hydrogen.
Location: Lyngby, Denmark
Formerly known as “Haldor Topsøe A/S,” Topsoe is a trusted name in energy-efficient technologies, which offers a wide range of hydroprocessing, chemical processing, and air emission control solutions.
The TOPSOE™ SOEC (solid-oxide electrolysis cell) electrolyzer is a compact stack built from bountiful, low-cost ceramic materials. The SOEC unit’s auto-response capability and a high degree of automation ensure convenient, efficient on-site hydrogen production and supply.
In addition, the electrolyzer provides greater green-hydrogen output and maximizes the plant’s production capacity, while mitigating technical risks across the entire solution life-cycle.
Location: Lübeck, Germany
H-TEC SYSTEMS develops electrolysis stacks and PEM electrolyzers for producing green hydrogen. It also draws on the expertise of MAN Energy Solutions in the areas of industrial compressors, plant EPC, and reactors.
The company’s electrolyzer portfolio includes:
H-TEC PEM Electrolyzer ME450: The electrolyzer is a turn-key solution for efficient H2 production with hydrogen production capacity of 450 kg/d to refuel 90 cars daily.
H-TEC PEM Electrolyzer HCS: The H-TEC SYSTEMS Hydrogen Cube System (HCS) is a modular system designed for mult-megawatt scale green hydrogen production with an electrolysis capacity of 4-10 MW or more.
Location: Porsgrunn, Norway
HydrogenPro ASA (HydrogenPro) designs and supplies advanced hydrogen production plants, which are adaptable for seamless integration, scalable to site requirements, and tailored to clients’ needs.
While the company supplies modular and scalable-to-need electrolyzer systems requiring minimal floor space, it offers powerful units for large-scale hydrogen plants. In addition, HydrogenPro’s high-pressure electrolysis system is known for outstanding energy efficiency.
Location: Sheffield, United Kingdom
ITM Power PLC is a clean fuel and an energy storage company that designs, manufactures, and integrates electrolyzers to produce green hydrogen using renewable electricity and tap water.
The company’s electrolyzer portfolio comprises:
Location: Seraing, Belgium
John Cockerill Hydrogen offers a full range of pressurized alkaline electrolysers and pressurized and gas treatment equipment. John Cockerill’s electrolyzers are used in a wide range of industries (chemicals, steelmaking, power plants, etc.) and are designed for friendly O&M and fast and easier installation.
According to the company, John Cockerill’s 5 MW single stack pressurized electrolyzer is the “largest on the market” and is “a must for low CAPEX and OPEX.”
The company also builds hydrogen refueling stations with ranges from 100 to 1,000 kg (capacity)—suitable for light and heavy-duty applications, such as buses and trucks.
The LONGi Group is China’s solar giant. LONGi Hydrogen—a subsidiary of LONGi Green Energy Technology Co., Ltd.—has produced a large-scale alkaline water electrolysis hydrogen production system.
According to LONGi Hydrogen, its ALK Hi1 electrolyzer can “produce hydrogen with an energy content of 4.3 kWh per normal cubic meter.” The company is committed to becoming a globally leading company in hydrogen equipment technology.
Location: Augsburg, Germany
MAN Energy Solutions is a subsidiary of the German carmaker “Volkswagen Group.” The company was established from the merger of MAN Diesel and MAN Turbo. MAN Energy Solutions plans to invest in its subsidiary “H-TEC SYSTEMS” to make it a mass-producer of PEM electrolyzers.
H-TEC SYSTEMS is expected to benefit not only from its parent organization’s industry experience and global sales network but also from the expertise and extensive experience of the Volkswagen Group, particularly in areas like production scaling.
Location: Grenoble, France
McPhy offers a wide range of electrolyzers meeting customers’ needs in terms of output pressure and pureness. McPhy’s electrolyzers are ideal for light applications like gold-smithing and various multi-MW applications (such as heavy industry and mobility).
McPhy’s electrolyzers are available in the following variants:
Location: Oslo, Norway
Nel ASA has been pioneering renewable hydrogen for almost a century, catering to power-to-gas, power-to-industry markets, and more. The company manufactures electrolyzers and provides hydrogen fueling stations.
Nel ASA is a globally recognized leader of alkaline and PEM (Proton Exchange Membrane) water electrolysis technologies and makes electrolyzers for industry, Power-to-X, transport, and other applications.
Nel ASA offers the following electrolyzers:
Location: Incline Village, Nevada, United States
Ohmium International, Inc. (Ohmium) is a hydrogen electrolyzer company with centers of excellence for manufacturing and R&D in India and the U.S. Ohmium’s electrolyzer products are ideal for industrial, mobility, and Power-to-X applications. The company also provides O&M field services for hydrogen electrolyzer systems.
Key advantages of the Ohmium Lotus™ Mark 1 and Mark 2 PEM Hydrogen Electrolyzers include:
Location: Latham, New York, United States
Plug Power Inc. (Plug) develops hydrogen fuel cell systems that replace conventional batteries used in electricity-powered equipment and vehicles. The company has facilities across the U.S. and has built a strategic network with well-established companies to create extended enterprise capabilities.
Plug provides plug-and-play electrolyzer products (based on PEM stack technology) and custom-engineered integrated solutions to meet any demand—including mission-critical life-support in NASA spacecraft.
Location: Munich, Germany
Siemens Energy AG is an energy company founded as the spin-off of the former Gas & Power division of the Siemens Group. Siemens Energy is relying on PEM electrolysis to develop a powerful PEM electrolyzer product line optimized for a variety of applications. In this context, the Silyzer product family combines high efficiency and high power density and harnesses volatile energy generated from solar and wind.
Location: Dresden, Germany
Sunfire GmbH (Sunfire) is a globally recognized industrial electrolysis company. Sunfire’s electrolyzers produce renewable hydrogen and syngas from renewable electricity, water steam, and captured CO2.
The company’s electrolysis solutions help climate-conscious businesses and energy-intensive industries decarbonize entire value chains.
Sunfire’s hydrogen electrolysis solutions comprise:
Location: Hefei, Anhui, China
Sungrow Power Supply Co., Ltd. provides efficient, safe, and smart green hydrogen production systems and solutions, which include:
Location: Dortmund, Germany
thyssenkrupp nucera’s vision is to be the “#1 provider for hydrogen and chlorine technologies.” The company’s large-scale solutions for green value chains are instrumental in achieving climate-neutrality and creating a new industry ecosystem.
thyssenkrupp nucera’s experience in the chlor-alkali business forms a solid foundation for alkaline water electrolysis technology and scale-up. In addition, the company’s large-scale water electrolysis technology can meet the highest market demands.
Other significant players include AquaHydrex, Elogen, Shandong Saikesaisi, and Suzhou Jingli Hydrogen (SJH).
Blackridge Research & Consulting’s Global Electrolyzer Market report helps you gain a better understanding of diverse electrolyzer technologies, as well as market growth, trends, and outlook.
The report provides a rigorous market analysis across multiple regions.
In addition, you can leverage forward-looking insights into the competitive landscape, market opportunities, market drivers and restraints, key industry players, JVs, M&A developments, and more.
With advanced hydrogen electrolyzer technologies, manufacturers are introducing products with multiple design options, excellent spare parts availability, and high plant availability.
Hydrogen electrolyzer manufacturers are crucial for meeting the world’s energy demands, while protecting the environment and reducing the cost of clean hydrogen for a sustainable future.