bubbling water

Proton Exchange Membrane (PEM)

PEM electrolyzers harness innovative proton exchange membrane to efficiently transform water into clean hydrogen fuel. With their high performance and flexibility, this cutting-edge technology will contribute for a sustainable energy future.

PEM (Proton Exchange Membrane) electrolyzers are devices that use an electrolytic process to split water into hydrogen and oxygen gases. They consist of a membrane, which acts as an electrolyte, and two electrodes. When an electric current, produced by a renewable source, is applied, water molecules are dissociated into oxygen and self-pressurized hydrogen gas. PEM electrolyzers are gaining prominence in the market for their high energy efficiency, fast response times, ability to operate at low temperatures and versatile deployment in various application, making them a promising technology for hydrogen production and energy storage.

Example of 2 x 2.5MW (up to 1000 Nm³/h H₂) PEM plant


Plug-and-play solution with modular containers

  • Scalable from 2.5 MW on
  • Production from: 250 Nm³/h up to 30 bar (without compression)
  • Fast dynamic response and broad operating range
  • High hydrogen purity
  • Smaller footprints enable a simple and fast placement of system
  • Standardized systems are easier for authority approvals.

2.5MW PEM module


What are the advantages of the PEM electrolyzer?

  • Stack operation just with water (no lye circulation)

  • Fast cold start-up

  • High outlet pressure.

Contact us
  • PEM Technical Data sheet PDF : 116 KB