Introduction
The global hydrogen economy demands rigorous quality assurance mechanisms to accelerate commercialisation and build market confidence. The CLEANHYPRO project – an Open Innovation Test Bed for Electrolysis Materials for Clean Hydrogen Production funded by Horizon Europe- addresses this critical need through a comprehensive Quality Label scheme for electrolysers developed by Bureau Veritas.
This initiative represents a transformative step in standardising electrolyser certification across four key technologies: alkaline (AEL), proton exchange membrane (PEM), anion exchange membrane (AEM), and solid oxide electrolysis (SOEC). By establishing transparent, evidence-based testing protocols and governance structures, the CLEANHYPRO Quality Label scheme professionalises the hydrogen production sector while remaining responsive to rapid technological evolution. The scheme encompasses rigorous ex-situ component testing and in-situ cell-level assessment, culminating in an intuitive A-to-F grading system that communicates complex performance data to end-users.
A Comprehensive Framework for Performance Assessment
The Quality Label will operate as a rigorous, multi-stage verification framework designed to assess electrolyser performance comprehensively. Rather than relying on isolated measurements, the scheme evaluates devices through both component-level testing and integrated cell-level assessments, ensuring quality is maintained throughout the entire system. This dual approach captures both the reliability of individual materials and the real-world performance of complete units under operational stress conditions.
Transparency, Governance, and Trust
The certification process prioritises transparency and fairness through a robust governance structure involving accredited laboratories, independent certification bodies, and market representatives. This multi-stakeholder model prevents conflicts of interest while maintaining strict confidentiality protections for manufacturers. Detailed non-disclosure agreements ensure proprietary information remains protected throughout testing, fostering trust between all parties and encouraging participation from leading manufacturers.
Intuitive Grading for Complex Data
The Quality Label will ultimately express complex performance data through an intuitive A-to-F grading system, making certification outcomes immediately understandable to end-users. This visual simplicity masks sophisticated analysis across several integrated assessment blocks, ranging from manufacturer information to efficiency in hydrogen production. Each block reflects critical quality dimensions, weighted according to their influence on overall system performance. Manufacturers receive detailed scoring breakdowns alongside their letter grade, enabling continuous improvement while maintaining public simplicity.
Adapting to a Fast-Evolving Sector
Crucially, the scheme will incorporate dynamic renewal procedures, recognising that hydrogen technology remains rapidly evolving. Rather than becoming obsolete, the Quality Label will undergo periodic updates every three years, incorporating real-world performance data from certified units and the latest industry innovations. This adaptive approach ensures the label remains relevant and credible as technologies mature and market expectations shift.
Future Outlook: From Framework to European Standard
The Quality Label’s initial deployment through CLEANHYPRO Open Calls will generate valuable first-generation data, refining testing procedures and establishing baseline performance benchmarks. As more OEMs participate, the scheme will accumulate evidence about actual electrolyser performance, enabling increasingly accurate quality predictions. This growing dataset transforms the label from a theoretical framework into evidence-based certification grounded in practical experience.
Public release of the scheme promises to expand its impact substantially. Broader participation from accredited bodies and laboratories will democratise access to certification, reducing barriers for emerging manufacturers while maintaining rigorous standards. Over time, the Quality Label could evolve into a European standard that purchasers and regulators expect from commercial electrolyser deployments, fundamentally reshaping market dynamics and driving quality improvements across the sector.
Conclusion
The Quality Label represents a transformative approach to electrolyser certification, combining scientific rigour with market accessibility. By establishing transparent, technology-specific standards and maintaining dynamic governance structures, the scheme addresses a critical need in the emerging hydrogen economy.
More fundamentally, it demonstrates how standardisation can accelerate technology maturation without stifling innovation -certifying excellence while remaining responsive to industry evolution. As hydrogen production scales towards climate goals, such trusted quality assurance mechanisms become essential infrastructure for sustainable energy transitions.
Author(s):
Pablo Cortiguera Ruiz, Cristina Lucero Martínez , Rubén Pozo Baquero.
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