Calculate the carbon dioxide equivalent quantity of an F gas
Find out how to express the mass of a fluorinated greenhouse gas (F gas) in terms of CO2 so that you comply with EU regulations on F gases.
Some EU requirements for fluorinated greenhouse gases (F gases) have size thresholds.
The size thresholds are expressed in terms of carbon dioxide (CO2) equivalent. That takes into account how much a gas contributes to global warming, relative to carbon dioxide.
Calculate the carbon dioxide equivalent of a quantity of F gas
You calculate the carbon dioxide equivalent of a quantity of F gas by multiplying the mass of the gas (in tonnes), by the gas’ global warming potential (GWP).
You’ll usually find the mass of an F gas expressed in kilograms (kg) on product labels etc. To convert the mass to tonnes, divide by 1,000.
Global warming potentials for F gases are listed in the table of F gases regulated by the EU.
You can also find global warming potentials for the gases which have record keeping requirements under the EU regulation.
The amount in tonnes of CO2 equivalent is the mass (in tonnes) of F gas multiplied by the GWP of that F gas.
For example the global warming potential of HFC 404A is 3,922. Therefore the tonnes CO2 equivalent of 10kg of HFC 404a is calculated as follows:
- Mass (in tonnes) of F gas multiplied by GWP of F gas
- = (10/1,000) * 3,922
- = 39.2 tonnes CO2 equivalent
Table of CO2 equivalent thresholds for common F gases
For some common F gases, this table lists:
- global warming potentials
- the quantities that are equivalent to CO2 size thresholds used in the EU regulation
|F gas||global warming potential||mass, in kg, equal to 5 tonnes CO2||mass, in kg, equal to 40 tonnes CO2||mass, in kg, equal to 50 tonnes CO2||mass, in kg, equal to 500 tonnes CO2|