Containerized Alkaline Hydrogen Generators: 150 to 300 Nm³/h

Nel Hydrogen’s AC150 and AC300 containerized alkaline hydrogen generators wrap electrolyzer technology in containers, enabling quick and robust outdoor or indoor installations.

The A Series electrolyzers feature a cell stack power consumption down to 3.8 kWh/Nm3 of hydrogen gas produced, up to 2.2 MW per stack. They can generate up to 3,880 Nm3/hour of hydrogen or just above 8 ton per day. This advanced, compact design offers an excellent turnkey solution, delivering an output pressure of 30 barg/200 barg (435 psig/2,900 psig).

Common applications include on-site hydrogen gas supply for industrial processes and fueling stations.


  • Pure hydrogen at process pressure—up to 200 barg (2,900 psig) hydrogen and 99.99 to 99.999% purity
  • Cost-effective hydrogen supply – tracks electric costs
  • Virtually zero stored hydrogen – removes the hazard of flooding the space
  • Large capacity with minimal footprint – only a fraction of space needed compared to storing large volumes of gas or liquid hydrogen
  • Dependable supply of hydrogen – field-proven reliability
  • Containerized design – versatile plant configurations
  • Automated – safe operation without manual involvement


Source: Nel Hydrogen

Specifications AC150 AC300
Net Production Rate 150 Nm3/h 300 Nm3/h
Production Capacity Dynamic Range 15 to 100% of flow range 15 to 100% of flow range
Power Consumption at Stack1 3.8 to 4.4 kWh/Nm3 3.8 to 4.4 kWh/Nm3
Purity – with optional purification 99.99 to 99.999% 99.99 to 99.999%
O2-Content in H2 <2 ppm v <2 ppm v
H2O-Content in H2 <2 ppm v <2 ppm v
Delivery Pressure 30 barg/200 barg 30 barg/200 barg


Container 1 – W x D x H

Container 2 – W x D x H

Container 3 – W x D x H


12 m x 2.9 m x 3.6 m

9 m x 2.9 m x 3.2 m



13 m x 2.9 m x 3.6 m

9 m x 2.9 m x 3.2 m

9 m x 2.9 m x 3.2 m

Ambient Temperature -25 to 35 ⁰C -25 to 35 ⁰C
Electrolyte 25% KOH aqueous solution 25% KOH aqueous solution
Feed Water Consumption 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 requirements.

1 Depends on configuration and operating conditions.

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