Posted in | Hydrogen Equipment

PEM Hydrogen Generators: 10 to 30 Nm³/h

The C Series water electrolysers from Nel Hydrogen use Proton Exchange Membrane (PEM) technology to generate up to 30 Nm3/hour of hydrogen gas at a purity of 99.9998%.

The electrolyzers are suitable for a range of industrial applications. They replace the requirement for liquid hydrogen storage or hydrogen tube trailers, decreasing operational safety hazards related to delivered hydrogen.


  • Pure hydrogen at process pressure – up to 30 barg (435 psig) hydrogen and 99.9998% purity
  • Cost-effective hydrogen supply – tracks electric costs
  • Increased safety – caustic chemicals are not used
  • Virtually zero stored hydrogen – removes the hazard of flooding the space
  • Small footprint – only a fraction of space needed compared to trailers or cylinders
  • Dependable supply of hydrogen – field-proven reliability
  • Quick and easy installation – normally up and running in a day
  • Automated – safe operation without manual involvement
  • Low maintenance – needs as little as 4 hours of annaual maintenance


Source: Nel Hydrogen

Specifications C10 C20 C30
Nominal Production Rate 10 Nm3/h 20 Nm3/h 30 Nm3/h
Production Capacity
Dynamic Range
0 to 100% 0 to 100% 0 to 100%
Power Consumption
by System1
6.2 kWh/Nm3 6.0 kWh/Nm3 5.8 kWh/Nm3
Purity 99.9998% 99.9998% 99.9998%
O2-Content in H2 <1 ppm v <1 ppm v <1 ppm v
H2O-Content in H2 <2 ppm v <2 ppm v <2 ppm v
Delivery Pressure 30 barg 30 barg 30 barg
Enclosure – L x W x H
Power Supply
Enclosure – L x W x H

2.5 m x 1.2 m x 2 m

1.7 m x 1 m x 2 m

2.5 m x 1.2 m x 2 m

1.7 m x 1 m x 2 m

2.5 m x 1.2 m x 2 m

1.7 m x 1 m x 2 m
Ambient Temperature 5 to 40 °C 5 to 40 °C 5 to 40 °C
Electrolyte Proton Exchange Membrane Proton Exchange Membrane Proton Exchange Membrane
Feed Water Consumption 0.9 l/Nm3 0.9 l/Nm3 0.9 l/Nm3


For reference only—specifications are subject to change. Customers can contact Nel Hydrogen for solutions that best fit their needs.

1Depends on configuration and operating conditions.

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