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Carbon base

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Principle

The emission factors of the Base Carbone® are determined on a "lifecycle" basis. This includes several phases linked to the activity associated with the emission factor. For example, the combustion of one liter of gasoline includes both the emissions linked to the combustion of this gasoline as well as those linked to its upstream phase (extraction, refining, transport and distribution). Another example: the emission factor linked to the transportation of 1 tonne per kilometer in a truck includes the emissions linked to the diesel (upstream and combustion), but also the amortization of the vehicle.

This breakdown per emission category is not used for all the elements of the Base Carbone®.

It is presented as follows:

Example of butcher's shop veal

 

The categories are homogeneous with respect to the scopes.

Fuel categories

Fuels in the Base Carbone® are all broken down into two categories:

  • A "combustion" category, corresponding to the emissions linked to the combustion of the fuel
  • An "upstream" category, corresponding to the emissions linked to the provision of this fuel (extraction, processing, refining, transportation and distribution).

 

Electricity categories

Likewise, the emission factors for electricity are broken down into two categories:

  • A "combustion in the power plant" category, corresponding to the GHG emissions linked to the combustion of fossil fuels for the thermal power plants in the grid
  • An "upstream" category, corresponding to the emissions linked to the upstream phase of fuels in the power stations, network losses and the amortization of the building of the power plants

 

Transport categories

The transport categories are as follows:

  • A "combustion" category, corresponding to the emissions linked to the combustion of the fuel
  • An "upstream" category, corresponding to the upstream phase of the fuels
  • An "amortization" category, corresponding to the emissions linked to the manufacturing of the vehicle spread over the vehicle service life This category is not yet assessed for all emission factors in the Base.

 

Goods categories

The elements in the "goods purchasing" category correspond to LCA-type "from cradle to door" emission factors. They include therefore all emissions generated for the manufacturing of the item, from the extraction of the raw material through to the item leaving the manufacturing plant.

These categories are as follows:

  • An "energy" category corresponding to the energy consumed to manufacture the goods
  • A "fugitive emissions" category linked to the emissions from the manufacturing process
  • An "inputs" category corresponding to the emissions generated for the manufacturing of the inputs required to manufacture the goods
  • A "transport" category corresponding to the routing of the inputs from plant (n-1) to plant (n).
  • An "amortization" category for the amortization of the machines and installations

 

Waste processing categories

The elements in the "goods purchasing" category correspond to LCA-type "from door to tomb" emission factors. They therefore include all the emissions generated at the end-of-life of waste, from its collection to its elimination.

These categories are as follows:

  • A "collection" category, corresponding to the emissions linked to the collection of the waste
  • An "operations" category corresponding to the consumption of energy linked to the waste treatment processes
  • A "fugitive emissions" category corresponding to the emissions linked to the particular waste treatment process (incineration, methanization, etc.)

 

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