About this picture: This type of biogas is comprised primarily of nitrogen, hydrogen, and carbon monoxide, with trace amounts of methane.
The gases methane, hydrogen and carbon monoxide can be combusted or oxidized with oxygen.
Air contains 21% oxygen.
This energy release allows biogas to be used as a fuel.
Biogas can be used as a low-cost fuel in any country for any heating purpose, such as cooking.
It can also be used in modern waste management facilities where it can be used to run any type of heat engine, to generate either mechanical or electrical power.
Biogas can be compressed, much like natural gas, and used to power motor vehicles and in the UK for example is estimated to have the potential to replace around 17% of vehicle fuel.
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