Containerized PEM Hydrogen Generators: 246 to 492 Nm³/h

In situations where plant space is at a premium, customers may want to site their electrolysers outside. At other times customers may want to configure an electrolyser for a more turnkey operation. To satisfy those needs, we suggest containerization. The M Series MC250 and MC500 units are delivered and sited in free standing containers for maximum flexibility.

Containerized M Series electrolysers can produce up to 492 Nm3/h of hydrogen gas at 99.9995% purity on-demand. Typical applications include renewable energy storage, industrial process gas, and hydrogen fueling.


  • Pure hydrogen at process pressure – up to 30 barg (435 psig) hydrogen and 99.9995% purity
  • Economical hydrogen supply – tracks electric costs
  • Increased safety – no caustic chemicals
  • Virtually zero stored hydrogen – eliminates the risk of flooding the space
  • Large capacity at minimum footprint – fraction of space needed compared to large volume gas or liquid hydrogen storage
  • Reliable supply of hydrogen – field-proven reliability
  • Containerized design – flexible plant configurations
  • Automated – safe, unattended operation

Specifications – Containerized Design

Source: Nel Hydrogen

Specifications MC250 MC500
Net Production Rate 246 Nm3/h 492 Nm3/h
Production Capacity Dynamic Range 10 to 100% 10 to 100%
Average Power Consumption at Stack1 4.5 kWh/Nm3 4.5 kWh/Nm3

Purity – with optional high purity dryer

99.9995% 99.9995%
O2-Content in H2 < 1 ppm v < 1 ppm v
H2O-Content in H2 < 5 ppm v < 5 ppm v
Delivery Pressure 30 barg 30 barg

Electrolyser Container2 – W x D X H

Rectifier Transformer Container2 – W x D X H

12.2 m x 2.5 m x 3 m

6.1 m x 2.5 m x 2.6 m

12.2 m x 2.5 m x 3 m

Two: 6.1 m x 2.5 m x 2.6 m

Ambient Temperature

-20 to 40⁰C

-20 to 40⁰C
Electrolyte Proton Exchange Membrane Proton Exchange Membrane
Feed Water Consumption 0.9 l/Nm3 0.9 l/Nm3


For reference only – specifications are subject to change. Please contact Nel Hydrogen for solutions to best fit your needs.

1 Dependent upon configuration and operating conditions.

2 Plus vent and rooftop equipment, site specific.

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