Series Starts -

Difference between M3 and NM3 -

1 m3 biogas and 1 Nm3 biogas are both units of measurement for biogas, but they differ in their reference conditions:

1 m3 biogas:

- Represents a volume of biogas at atmospheric pressure (1013 mbar) and ambient temperature (typically around 20°C)

- Actual volume of biogas at site conditions

1 Nm3 biogas:

- Represents a volume of biogas at standard reference conditions: 0°C (32°F), 1 atm (1013 mbar), and dry gas

- Normalized volume of biogas, independent of site conditions

Key differences:

- Temperature: 1 m3 biogas is at ambient temperature, while 1 Nm3 biogas is at 0°C

- Pressure: 1 m3 biogas is at atmospheric pressure, while 1 Nm3 biogas is at 1 atm (1013 mbar)

- Water content: 1 m3 biogas may contain water vapor, while 1 Nm3 biogas is dry gas