Which values does the emissions calculation provide?

Calculation according to HBEFA

 

• Group 1 (well-founded measurement programs)
  

  CO (carbon monoxide), HC (hydrocarbons), NO₂ (nitrogen dioxide), NOx (nitrogen oxide), PN (particle matters), fuel (fuel consumption) CO₂ (carbon dioxide total and fossil)
  

  Note: In addition, the greenhouse gas potential (CO2 equivalent, CO2e or GWP [Global Warming Potentials]) is calculated. The CO2e value is calculated using CO2 (carbon dioxide total [factor 1]), N2O (dinitrogen monoxide; nitrous oxide [factor 298]) and CH4 (methane [Factor 25]).
  Example:
  CO2 total 255.56 kg, N2O 22.19 g, CH4 0.37 g
  Factors: CH4 x25, N2O x298
  Calculation: CO2e = 255.56 kg + (22.19 g x 298) + (0.37 g x 25) = 256.22 kg
  

• Group 2 (supplementary measurement programs and literature research)

  Pb (lead), SO2 (sulphur dioxide), CH4 (methane), NMHC (non-methane), C6H6 (benzene), C7H8 (toluene), C8H10 (xylene)

• Group 3 (indicative literature references)

  NH3 (ammoniac), N2O (nitrous oxide)

Calculation according to EN 16258

Note: Please note that for the calculation of emissions in accordance with EN 16258 the emission of CO₂e is determined.

 

Element	Description
Energy - WTW	WTW (Well to Wheel) Energy consumption in megajoules from the source up to and including the journey.
Emissions - WTW	WTW (Well to Wheel) CO2e emissions in kilograms from the source up to and including the journey.
Energy - TTW	TTW (Tank to Wheel) Energy consumption of the journey in megajoules.
Emissions - TTW	TTW (Tank to Wheel) CO2e (in kilograms) produced during the journey.
Energy - WTT	WTT (Well to Tank) Energy consumption in megajoules from the source up to the journey.
Emissions - WTT	WTT (Well to Tank) CO2e (in kilograms) produced up until the journey.

Calculation in accordance with decree no. 2017-639

 

Element	Description
Emissions - WTW	WTW (Well to Wheel) Emissions of CO2 in kilograms from the source up to and including the journey.
Emissions - TTW	TTW (Tank to Wheel) CO2 (in kilograms) produced during the journey.
Emissions - WTT	WTT (Well to Tank) CO2 (in kilograms) produced up until the journey.

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