The following primary energy sources can be used: Biogas or Biomethane; Natural Gas; Solar or Wind.

Biogas or Biomethane, or Natural Gas go through a thermochemical conversion called steam methane reform (SMR) which produces a reaction with steam and forms a synthetic gas that consists predominantly of hydrogen.



Natural gas, solar or wind as a primary energy source can be used to produce electricity, which then is used in a process called electrolysis to split water into hydrogen and oxygen.



Either of these processes produce hydrogen.

