What PEM Electrolysis Is
Proton Exchange Membrane (PEM) electrolysis splits water into hydrogen and oxygen using DC electricity. In a PEM electrolyser, water is fed to the anode side, where it is split; protons pass through the membrane while electrons travel through the external circuit, recombining at the cathode to form hydrogen
What a PEM Electrolyser Produces
A PEM electrolyser produces hydrogen and oxygen simultaneously as part of normal operation. Depending on your intended use, plumbing and gas routing can be configured so the system outputs hydrogen only, oxygen only, or a mixed gas stream (configuration dependent).
Where PEM Electrolysis Fits
PEM electrolysis is commonly used anywhere you need on-demand hydrogen at small-to-medium scale—R&D, lab supply, demonstration systems, and hydrogen feed for appropriately matched fuel cells or processes. Cost and performance are strongly influenced by electricity price and system configuration (stack + balance-of-plant)
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Example of Typical SENZA PEM Specs
For example, SENZA’s SZPE-300 product listing states hydrogen production of 300 mL/min, max hydrogen purity 99.995%+, and output pressure 0–0.5 MPa, and lists included components such as a power supply, separator bottle, water tank, water pump, and toolkit (package contents vary by model/config)
