There are five mobile combustion calculation methods to choose from:
Actual fuel consumption uses your fuel type (e.g. petrol or diesel) and consumption. This is our recommended calculation method as it provides the most accurate results.
Average fuel consumption | Distance driven uses the average fuel consumption of your vehicles and the distance driven.
Distance uses the distance driven, vehicle type (e.g. van, truck, motorcycle, bike) and fuel type (e.g. petrol or diesel).
Distance and mass transported uses the distance travelled, the vehicle type (van or truck), and mass transported. This calculation method is suited for data related to the transportation of goods, but should only be used for transportation using company-operated vehicles. For other transportation, please categorise these as Scope 3 Category 4, Upstream Transportation and Distribution, or Scope 3 Category 9, Downstream Transportation and Distribution.
Bring Your Own Emissions allows you to upload your own pre-calculated emissions to the Plan A platform. For more information, see here.
We recommend calculation methods based on their accuracy but ultimately you should choose a calculation method that fits the data you have access to.
Note: For hybrid vehicles (PHEV) combustible fuel (i.e. diesel or petrol) and electricity readings must be separated out. Data relating to petrol or diesel should be accounted for in Scope 1 Mobile Combustion, whereas and data related to electricity should be accounted for in Scope 2 Purchased Electricity.
Similarly, electric vehicles (BEV) should be accounted for in Scope 2 Purchased Electricity alone.
For more information on how to choose a calculation method, read the Choose a Calculation Method article.