Electrolyzer Testing Market (2026 - 2033) Size, Share & Trends Analysis Report By Technology (Proton Exchange Membrane, Alkaline Electrolyzers), By Testing Services, By Power Capacity, By Business Model, By End Use, By Region, And Segment Forecasts

Electrolyzer Testing Market Summary

The global electrolyzer testing market size was estimated at USD 1,539.4 million in 2025 and is projected to reach USD 4,228.3 million by 2033, growing at a CAGR of 13.6% from 2026 to 2033. The rapid demand for electrolyzer deployments from test to multi-MW projects is increasing the complexity and scope of testing requirements.

As project sizes grow, stakeholders demand more accurate factory and site acceptance testing to de-risk large capital investments. As electrolyzers are used more in industry, long-term reliability is now a major concern. End users are focusing more on testing for degradation, durability, and faster lifetime cycles to see how performance changes in real conditions. These tests support warranty claims, help plan maintenance, and make projects more attractive to investors. As a result, testing is shifting from single checks to ongoing performance monitoring over the equipment’s life.In addition, stronger safety rules and new hydrogen standards are having a big impact on the electrolyzer testing market. Now, governments, insurers, and financiers often require proof that projects meet safety and quality standards before they move forward. This has increased the need for standardized safety checks, certification, and independent testing as hydrogen infrastructure grows; testing driven by regulations is becoming a key and regular part of the market.

Digital tools, remote monitoring, and data-driven diagnostics are changing the way electrolyzer testing is done. Testing providers are moving away from one-time projects and toward recurring, subscription-based services that help track performance over time. This shift enables ongoing optimization, predictive maintenance, and faster fault detection. As a result, testing is becoming less of a one-off task and more of a regular support function in the hydrogen value chain.

Technology Insights

The alkaline electrolyzers (AEL) segment led the market and accounted for 28.4% of the global revenue in 2025, due to its reliable technology, low investment costs, and fit for green hydrogen projects supported by government renewable programs in regions. For instance, in February 2023, LONGi Hydrogen introduced its new ALK Hi1 series of alkaline electrolyzers. These units use as little as 4.3 kWh/Nm^3 of DC power at full load, and have been certified by third-party organizations such as Det Norske Veritas.

The anion exchange membrane (AEM) segment is expected to grow significantly over the forecast period. The market is driven by their lower costs, the absence of precious-metal catalysts, and their ability to combine the strengths of both alkaline and PEM designs compactly. For instance, in October 2025, Sumitomo Electric Industries, Ltd. was selected for an NEDO project to develop and test anion exchange membrane (AEM) electrolysis systems. The goal is to make hydrogen production more affordable by using AEM cell stacks with redox flow battery technology that do not require rare-resource catalysts or membranes.

Testing Services Insights

The performance & efficiency testing segment accounted for the largest market revenue share in 2025. As industries such as chemicals and transport grow, it becomes even more important to accurately assess efficiency. This helps ensure that solutions remain durable and cost-effective. For instance, in October 2024, Next Hydrogen Solutions Inc. finished a long-term durability test on its GEN2 electrolysis cells. The company now uses these GEN2 cells in its modular electrolysers, available in 0.75MW, 1.5MW, and 2.25MW sizes for commercial green hydrogen production.

The safety & certification testing segment is expected to grow considerably over the forecast period. Compulsory international standards for hydrogen infrastructure now require strict safety and certification tests for pressure tolerance, leak detection, and ways to prevent hazards in electrolyzers. For instance, in December 2024, DNV introduced the DNV-ST-J301 Electrolyser systems standard. This standard outlines safety requirements for designing, building, and operating electrolyser systems and their parts used to make hydrogen from water electrolysis.

Power Capacity Insights

The 1-2 MW segment accounted for the largest market revenue share in 2025. Testing in these settings helps make sure the equipment works well and can handle different loads. As renewable energy becomes cheaper and more companies set net-zero goals, there is more focus on prototyping and reliability testing in this range. This segment stands out for its scalability and flexibility, which are especially useful for commercial refueling stations.

The 2-5 MW segment is expected to observe notable growth over the forecast period. The market is driven by factors such as large green hydrogen projects that work with offshore wind and utility-scale power-to-X systems need thorough testing for thermal management and overload conditions. For instance, in November 2025, Bosch started operating its first self-run 2.5 MW hydrogen electrolyzer. The system uses two proton exchange membrane (PEM) electrolysis stacks and makes renewable hydrogen using renewable electricity at the same time and within the same price zone.

Business Model Insights

The project-based test campaigns segment held the largest market share of the global revenue in 2025. The market is growing because of the rise in large-scale green hydrogen projects and demonstration efforts around the world, as they require custom, one-time validation to test how prototypes perform and scale in real-world settings. Upcoming improvements in PEM and AEL systems are driving growth in this field as costs drop and power capacities increase, and developers need tests for each project to check durability.

The subscription segment is expected to exhibit a robust CAGR over the forecast period. The market is driven by the company's need for ongoing, long-term monitoring of its equipment. As green hydrogen infrastructure develops and businesses focus on predictive maintenance to reduce downtime, these services become more valuable. Lower electrolyzer costs and wider use, especially of PEM types with many units in operation, help create steady revenue through remote diagnostics and performance optimization.

End Use Insights

The electrolyzer OEMs segment accounted for the largest market revenue share in 2025. Electrolyzer OEMs drive the electrolyzer testing market through the need to validate designs, optimize performance, and ensure durability for commercial scalability. Rising investments in green hydrogen production are pushing OEMs to rigorously test alkaline, PEM, and solid oxide electrolyzers for efficiency gains and cost reductions. For instance, in August 2025, Thermax announced a strategic partnership with HydrogenPro ASA to indigenise alkaline water electrolysis solutions for large-scale green hydrogen projects in India.

The utilities & energy companies segment is projected to grow significantly over the forecast period. The market is anticipated to be driven by large-scale hydrogen integration for grid stability and energy storage. Decarbonization mandates and the pairing of renewable energy with electrolyzers necessitate testing of utility-scale electrolyzer efficiency and long-term operation. For instance, in April 2025, VNG announced the start of test operations for its 30-MW electrolyser as the facility generates green hydrogen from local wind power to supply the Leuna chemicals and oil park, with TotalEnergies as the primary customer.

Regional Insights

The electrolyzer testing industry in North America is poised to depict the fastest CAGR over the forecasted period. North America leads the global market due to strong investments in green hydrogen infrastructure by the U.S. government and private sectors. Technological innovation by companies in the U.S. and Canada, combined with stringent emissions regulations, is accelerating demand for advanced testing systems. Industrial applications in energy storage and fuel cells further boost growth, supported by collaborations between national labs and manufacturers.

U.S. Electrolyzer Testing Market Trends

The U.S. electrolyzer testing industry is progressing due to strong demand for federal funding, like the DOE's hydrogen shot initiative, which targets cost reductions, focuses on domestic manufacturing under Buy American policies, and encourages testing for quality assurance. Automotive and aerospace sectors push for high-performance testing amid FCEV adoption goals. Supply chain localization reduces import dependency, heightening in-house testing demands.

Europe Electrolyzer Testing Market Trends

The electrolyzer testing industry in Europe has received an impetus from EU Green Deal targets and national hydrogen strategies in Germany, France, and the UK. The rapid deployment of gigawatt-scale electrolysis parks demands accurate testing to ensure grid stability and durability. Collaborative R&D through Hydrogen Valleys and cross-border initiatives promotes innovation in AEM and SOEC testing.

Asia Pacific Electrolyzer Testing Market Trends

The electrolyzer testing industry in the Asia Pacific dominated the market with 33.4% revenue share in 2025, due to China's and India's green hydrogen missions alongside Japan and South Korea's hydrogen societies. Key drivers include rapid industrialization, urbanization, and government policies such as China's 14th Five-Year Plan for renewables. Massive investments in solar-wind hybrid projects are fueling electrolyzer scaling, driving the need for advanced testing to improve efficiency. Private-sector expansions in manufacturing hubs like Gujarat and coastal China are accelerating testing infrastructure.

Key Electrolyzer Testing Company Insights

Some key companies in the Electrolyzer testing industry are DNV, Intertek, iASYS Technology Solutions, and TUV SUD, among others.

• iASYS Group delivers test and validation solutions that combine hardware, software, facilities, and automation for the automotive and energy sectors. Their platforms include BRIX, which uses AI for product validation management, and Orbit, which helps automate engineering tasks. These tools handle various data formats and support complex engineering work. iASYS also offers modular testing for hydrogen fuel cells and electrolysers, from single cells to full stacks, along with engine, vehicle, and motor testing.

• Intertek provides Assurance, Testing, Inspection, and Certification (ATIC) services to industries worldwide. With a focus on science-based expertise, the company helps clients address quality, safety, and sustainability issues. Intertek delivers more than just standard testing by offering full quality assurance for operations and supply chains. These services support clients in managing risk, building resilience, meeting compliance requirements, and reaching independent certification and sustainability targets.

Recent Developments

• In April 2025, McPhy Italy strengthened its position in the clean hydrogen sector by significantly upgrading its electrolyzer testing infrastructure. The company expanded its testing capabilities to support systems ranging from 100 kW to 1 MW, enabling more accurate performance validation under industrial operating conditions. This advancement is designed to accelerate technology development, enhance material qualification, and reduce the time for next-generation electrolyzers.

• In March 2025, HyCentA Research GmbH partnered with AVL List GmbH to advance hydrogen technology testing through the ReMET (Revolutionary Measurement and Testing Technologies) project. The partnership develops next-generation measurement, testing, and diagnostic solutions for key hydrogen systems, including electrolyzers, fuel cells, and storage technologies. This partnership is expected to establish new industry standards and accelerate the adoption of high-performance hydrogen technologies in both the industrial and mobility sectors.

Electrolyzer Testing Market Report Scope

Global Electrolyzer Testing Market Report Segmentation

This report forecasts revenue growth at global, regional, and country levels and provides an analysis of the latest industry trends in each of the sub-segments from 2021 to 2033. For this study, Grand View Research has segmented the global electrolyzer testing market report based on technology, testing services, power capacity, business model, end use, and region.

• Technology Outlook (Revenue, USD Million, 2021 - 2033)

  • Proton Exchange Membrane (PEM)

  • Alkaline Electrolyzers (AEL)

  • Solid Oxide Electrolyzers (SOEC)

  • Anion Exchange Membrane (AEM)

  • Hybrid / Novel Technologies

• Testing Services Outlook (Revenue, USD Million, 2021 - 2033)

  • Performance & Efficiency Testing

  • Degradation Testing

  • Safety & Certification Testing

  • System-Level Testing

  • Others

• Power Capacity Outlook (Revenue, USD Million, 2021 - 2033)

  • 0.5-1 MW

  • 1-2 MW

  • 2-5 MW

• Business Model Outlook (Revenue, USD Million, 2021 - 2033)

  • Pay-Per-Test

  • Project-Based Test Campaigns

  • Subscription

  • Others

• End Use Outlook (Revenue, USD Million, 2021 - 2033)

  • Electrolyzer OEMs

  • Hydrogen Project Developers

  • EPCs & Engineering Firms

  • Utilities & Energy Companies

  • Hydrogen Mobility Providers

  • Research Institutes & Universities

  • Government Agencies

  • Others

• Regional Outlook (Revenue, USD Million, 2021 - 2033)

  • North America

    • U.S.

    • Canada

    • Mexico

  • Europe

    • UK

    • Germany

    • France

  • Asia Pacific

    • China

    • Japan

    • India

    • South Korea

    • Australia

  • Latin America

    • Brazil

  • Middle East and Africa (MEA)

    • KSA

    • UAE

    • South Africa