What the HXS-30 is for, how it looks, its specifications, and the terms used in this handbook.
On this pageIntended use
Intended use#
The HXS-30 is a stand-alone 46-cell, 30 kW AEM water electrolysis stack. It makes hydrogen once integrated with your DC power, electrolyte circulation, gas-liquid separation and safety systems. Everything before and after the stack is in your design scope.
Product view#
Specifications#
The specifications below are the same values as the product page and datasheet. They are beginning-of-life values unless stated otherwise.
- H₂ production
- 6,900 NL/h (15 kg/day · design)
- Outlet pressure
- Up to 10 barg on the H₂ side
- Efficiency (HHV)
- 46-cell, 30 kW full-stack design 84% · approx. 47 kWh/kg-H₂
- Recommended operating condition
- 0.1 M KOH · 50 °C (adjustable)
- Operating temperature
- Up to 80 °C
- DC input
- 80 V · 360 A (28.8 kW)
- Water consumption
- 6.1 L/h measured (360 A; 18.5 h continuous run, 22–23 September 2026; includes water carried out with the product gas) · electrolysis theory 5.6 L/h
- 46-cell continuous run
- 360 A constant current · 93.6 h without interruption (as of 26 September 2026, 13:08 KST; latest figures in the 46-cell technical note)
- Number of cells
- 46
- Electrode area · reference active area
- Anode electrode area 600 cm² · cathode active area 512 cm²
- Dimensions
- 570 × 400 × 330 mm
- Weight
- 120 kg
- Structure
- Anode-side electrolyte circulation
- Instrument calibration
- Flow and gas analysers calibrated under KOLAS
- End plate
- SUS316L
- Bipolar plate
- Nickel-based metallic plate
- Material change
- Yes · we confirm the operating window and validation scope together
Terms#
| Term | Meaning |
|---|---|
| AEM | Anion exchange membrane: a membrane that passes hydroxide ions (OH⁻). |
| KOH | Potassium hydroxide, used as a 0.1 M solution for the electrolyte. |
| DI water | Deionised water. Quality is judged by conductivity (µS/cm at 25 °C). |
| MEA | Membrane electrode assembly: the electrodes and membrane that make up the heart of a cell. |
| BoP | Balance of plant: everything around the stack, such as power, pumps, tank, heat exchanger, piping, sensors and controls. |
| barg | Gauge pressure in bar, relative to atmosphere. |
| NL/h | Gas volume per hour in litres at standard conditions (0 °C, 1 atm). |
| BOL | Beginning of life. Specifications are BOL values unless stated otherwise. |
| SDS | Safety data sheet. Check it before handling KOH. |
Manufacturer#
- Manufacturer
- HydroXpand Inc.
- Address
- 3F, 59 Dongtansandan 6-gil, Hwaseong-si, Gyeonggi-do 18487, Republic of Korea
- Contact
- +82 70-4110-1201 · [email protected] · hydroxpand.com
What this chapter is based on
- HXS-30 datasheetPDF · 504 KB
- HXS-30 exterior STEP modelOn request
- HXS-30 user manualPDF · 4.8 MB
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