Key Players
Competitive Landscape
The key players covered include Nel Hydrogen, Asahi Kasei, Siemens Energy, ITM Power, Plug Power, Thyssenkrupp nucera and ANDRITZ.
The market includes separate contracts for stacks, complete systems and plant execution. Nel's Hydrasun agreement keeps PEM stack production in Wallingford while assigning balance-of-plant assembly and integration to Aberdeen. ANDRITZ's Salzgitter scope covers a complete alkaline hydrogen plant, while Thyssenkrupp nucera supplies major Shell and Stegra programmes. These different scopes change the revenue and delivery responsibility captured by each supplier. Public project capacity and company orders do not establish company market shares. The market counts the completed equipment sale once, without adding embedded stack or balance-of-plant resales again.
Table 7: Electrolyzer Market Company Developments and Commercial Implications, 2026 to 2036
| Evidence | Commercial effect | Buyer action |
|---|---|---|
| Plug reported 100 MW installed at Galp in January 2026, before commissioning. | Equipment delivery and hydrogen revenue occur at different milestones. | Tie the refinery hydrogen-supply start date to completion of commissioning. |
| Stegra completed all 37 module installations in April 2026. | A large delivery programme moves into integration and commissioning work. | Contract the remaining pre-commissioning and commissioning work after module delivery. |
| Nel launched its pressurised alkaline platform in May 2026. | A new product broadens the equipment choice without providing a mature operating record immediately. | Negotiate duty-specific output and warranty commitments for a first order of the pressurised alkaline platform. |
Source: Future Market Insights, Electrolyzer Market Report, 2026 to 2036.
How are the companies positioned?
Nel supplies alkaline and PEM equipment; Asahi Kasei has an operating alkaline reference at Fukushima; Siemens Energy supplies industrial PEM systems; and ITM's Hydropulse is pursuing a build, own and operate refinery project with an investment decision targeted in 2027. ANDRITZ's Salzgitter contract extends to a complete alkaline plant, placing plant engineering and execution within its offer.
What matters when a customer qualifies a supplier?
Operating duty and contractual remedies have a documented cost. DOE treats efficiency, durability and cost as separate objectives. ITM's year ended April 2026 included GBP 3.5 million of revenue constrained for component replacements and liquidated damages. Qualification therefore needs evidence for the promised duty and the supplier's obligations if output or component performance falls short, rather than a rated-capacity comparison alone.
Which capabilities distinguish the product offers?
Integration scope distinguishes the offers alongside technology. Siemens Energy lists industrial PEM references; ANDRITZ's Salzgitter scope includes a complete alkaline hydrogen plant. Under Nel's Hydrasun arrangement, the stack and surrounding balance of plant come from different production locations. This makes the scope supplied by each party relevant to both price and responsibility for plant performance.
How does geographic reach affect competition?
Cross-border supply does not require every production step to move with the customer. Nel's Hydrasun agreement retains stack manufacturing in Connecticut while developing assembly and balance-of-plant integration in Aberdeen. The IEA's Chinese-stack import comparison likewise retains European equipment and construction around the imported stack. Regional integration capability therefore remains a competitive role even where the electrochemical core is manufactured overseas.
Representative Company Overview
Table 8: Electrolyzer Market Representative Company Overview, 2026 to 2036
| Company | Positioning | Verified activity |
|---|---|---|
| Nel Hydrogen | Alkaline and PEM electrolyzer supplier. | Commercially launched its pressurised alkaline platform in May 2026. |
| Asahi Kasei | Alkaline electrolysis technology and operating references. | Reports operation of its 10 MW Fukushima pilot since March 2020. |
| Siemens Energy | PEM equipment for industrial hydrogen projects. | Lists a 200 MW Normand'Hy project in its portfolio. |
| ITM Power | PEM equipment with a developing hydrogen-supply model. | Hydropulse signed refinery project heads of terms in October 2026, with FID targeted in 2027. |
Source: Future Market Insights, Electrolyzer Market Report, 2026 to 2036.
Research Methodology
The assessment draws on IEA deployment and investment-decision evidence, official hydrogen support frameworks, engineering assessments and company equipment disclosures, with analyst market assessment. Values use USD billion for calendar-year water-electrolysis hardware and direct equipment-integration revenue, with 2025 as the preceding reference and 2026 to 2036 as the forecast period. Completed equipment sales are counted once. Technology covers alkaline, PEM, solid oxide and AEM; capacity refers to the completed system; applications follow principal immediate contracted use. Steelmaking and other non-ammonia industry remain within industrial processing, while power-to-gas and energy storage remain within the power/grid application. Physical capacity and project status are distinct from annual equipment revenue. Competitive positions describe evidenced supplier roles, without implying numerical company shares or new primary interviews.
