Less power and electrode area for the same hydrogen output
Hydrogen where you need it with HXB-V1
Relying on cylinder deliveries? Explore on-site production with a 2 kW AEM electrolyzer for research and pilot projects.
How the technology lowers hydrogen cost

Now available: the 30 kW stack
A 46-cell AEM electrolysis stack.
What it takes to put one HXB-V1 on site
What comes in the unit, and what the site has to provide.
- Integrated 2 kW stack, power, electrolyte circulation, temperature control and safety logic
- Desktop control app and an MQTT over Ethernet interface
- Dimensional data and an exterior STEP model for installation planning
- 200–240 V AC single phase (approx. 2.4 kW)
- Feed water at ASTM D1193 Type II or better
- H₂ and O₂ outlet piping, ventilation and site hydrogen safety
From turnkey systems to stacks and electrodes
Choose from an integrated system, a stack for your own BoP, or cells and electrodes for research.

2 kW system
Power, circulation, separation, pressure control and safety are integrated in one rack.
500 L/h · 1 kg/dayView HXB-V1 →
30 kW stack
A 46-cell full stack, supplied with measured i-V curves and cell-to-cell voltage data.
6,900 NL/h (design)View HXS-30 →
2 kW stack
A 2 kW AEM stack designed for integration into your own BoP.
500 L/h · 1 kg/dayView HXS-2 →


Research cells and electrodes
Extend electrode and MEA evaluation from a single cell to a short stack.
1–25 cm² · 1–20 cellsView research products →Commercial products already at work in customer projects
See why customers chose HydroXpand at three different levels: complete systems, stacks and electrodes.
Explore all applications →
On-site green-hydrogen production for micro-mobility refuelling
- Customer need
- Hydrogen generation for a micro-mobility refuelling setup
- What we supplied
- HXB-V1 2 kW system · performance evaluation support
- What this enables
- HXB-V1 integrated into the hydrogen-generation section; EFLOW handles storage, compression and dispensing.

A cell development engineer chose it as the platform for their own materials
- Customer need
- A cell-development platform for their own materials
- What we supplied
- HXS-2 stack
- What this enables
- Component dimensions and assembly guidance for preparing their own materials to fit the stack.

The fixed electrode for evaluating their own membrane
- Customer need
- Consistent electrodes for comparing membranes
- What we supplied
- HXP-an anode and HXP-ca cathode
- What this enables
- Repeat supply of electrodes made to the same process and specification for membrane comparisons.
Our public network spans companies, universities, research institutes and channel partners.
View all customers and partners →






































Technical notes and press coverage
Our own measurement records and articles written about HydroXpand.
View all insights →One material platform, widened from a single cell to megawatt scale
The electrodes and cell architecture stay the same. Active area and cell count grow at each step.
- Single cellAvailableHXS-0 →
Configurable electrolysis cell for catalyst, electrode and membrane evaluation.
- StackAvailableHXS-2 →
A 2 kW-class stack for customers integrating their own power, circulation, separation and control.
- SystemAvailableHXB-V1 →
An integrated system delivering 500 NL/h at 10 barg in a single unit.
- 30 kW-class stackAvailable nowHXS-30 →
The 46-cell full stack is available now.
- MW-scaleRoadmap
Modular scale-up architecture.
Four things that set the cost of clean hydrogen
Lower costs require better performance and durability, lower stack cost, and manufacturing that can scale.
Slower efficiency loss and fewer replacements
Lower core CAPEX for hydrogen production
More capacity with consistent quality
Tell us your project requirements
Send your target output and pressure, BoP integration scope, or the material and MEA conditions you want to evaluate. We will reply with the product and supply scope that fit.

