HYScale AEM electrolyser stacks and systems
CENmat’s AEM electrolyser stack platform, built without critical raw materials on CENmat’s own membranes, ionomers and electrodes. A 6 kW short stack is validated; the 100 kW stack is currently being commissioned, and the architecture is designed to scale to 0.5–1 MW.
what it is
HYScale is CENmat’s AEM electrolyser technology, re-engineered from the materials up. It needs no critical raw materials, uses an economical cell design and relies on stable, PFAS-free AionFLX™ membranes and ionomers with OXYGN and H2GN electrodes.
The electrodes have been validated at 400 cm² active area and in a 6 kW short stack, with the same performance in single cell and stack. A 4-cell short stack showed a stable stack voltage. The 100 kW stack is currently being commissioned.
HYScale is designed for 2 A/cm² at 2 V, and the stack architecture is designed to scale to the 0.5–1 MW class. Efficiency data for the 100 kW system will be published after acceptance testing. HYScale is aimed at customers who need more than coupon samples: short stacks, paid pilots and, as the platform scales, systems.
HYScale shares its name with the EU-funded HYScale project, coordinated by CENmat, which scales the technology towards a 100 kW system validated in an industrially relevant environment.
Applications
- Green hydrogen production for industry and energy storage
- Paid pilots and demonstrators with AEM stacks
- Integrators looking for a CRM-free stack platform
- Research infrastructure for AEM stack testing
Formats and supply
- Short stacks for evaluation (up to 5 cells, 400 cm² cells)
- Paid pilots and demonstrators (project-specific)
- Systems towards the 0.5–1 MW class (on request)
key specifications
6 kW
short stack validated
100 kW
stack currently being commissioned
0.5–1 MW
scalable stack architecture
| Parameter | Value |
|---|---|
| Technology | AEM water electrolysis with PFAS-free AionFLX™ membranes and CRM-free OXYGN/H2GN electrodes in dilute KOH |
| Cell active area | 400 cm² |
| Validated | 6 kW short stack; same performance in single cell and stack |
| Short-stack testing | 4-cell stack with stable stack voltage |
| 100 kW stack | Currently being commissioned |
| Current density at 2 V | 2 A/cm² |
| System CAPEX | < 400 €/kW |
| Scale | Architecture designed to scale to 0.5–1 MW |
| Efficiency (kWh/kg) | Published after 100 kW acceptance testing |
Performance depends on operating conditions. Full datasheet on request.
how to qualify
- Share your hydrogen demand, site conditions and timeline in the qualification form below.
- We align on stack size, operating window and scope (stack, module or system).
- Start with a short stack or paid pilot to validate performance in your environment.
- Scale up to modules and systems with agreed delivery and service terms.
qualify your project
Tell us your hydrogen demand, application and site. We check whether a short stack, pilot, module or system fits and reply personally with the next steps.
Required fields are marked *.
thank you – qualification request received
We will review your project details and reply personally by email with the next steps.
AEM qualification pack
Product overview, recommended test protocol and spec summary as a PDF.
frequently asked questions
What size are HYScale stacks?
A 6 kW short stack has been validated and the 100 kW stack is currently being commissioned. The architecture is designed to scale to 0.5–1 MW. Short stacks are available for evaluation and pilots.
Does HYScale need platinum-group metals?
No. HYScale is PGM-free and CRM-free, using OXYGN and H2GN electrodes and PFAS-free AionFLX™ membranes and ionomers.
What is the link to the EU project HYScale?
CENmat coordinates the Horizon Europe project HYScale (grant 101112055), which scales the technology towards a 100 kW system validated at TRL 5.
How do I get a quote?
Use the quote form with your required capacity and timeline. We reply personally; prices are on request.
related products
AEM membranes
AionFLX™ anion-exchange membranes
PFAS-free anion-exchange membranes for AEM electrolysers; wet or dry assembly.
Learn more →CRM-free anodes for AEM
OXYGN catalysts and electrodes (AEM)
CRM-free oxygen-evolution catalyst and coated anodes.
Learn more →CRM-free cathodes for AEM
H2GN catalysts and electrodes
CRM-free hydrogen-evolution catalyst and coated cathodes for AEM cells.
Learn more →AEM ionomers and binders
AionFLX™ ionomers
Matched PFAS-free binder for AEM catalyst layers, electrodes and inks.
Learn more →EU research projects with CENmat participation
Next step
Paid samples. Prices on request. We reply personally. All products · AEM vs PEM iridium calculator