Calculation methodology validated by ADEME
Calculation methodology
The calculator contains flights operated by Air France, KLM, their regional partners (BritAir, Cityjet, Régional, Airlinair, CCM Airlines or KLM CityHopper) or Transavia.com France.
Calculation methodology for Air France and its regional partners flights :
- CO2 emissions are directly proportional to the quantity of fuel consumed (3.15 tons of CO2 produced by the combustion of 1 Ton of kerosene).
- The calculation is based on the actual operating data recorded on each flight of last calendar year:
- the type(s) of aircraft operated on the route,
- the actual fuel consumption on each route,
- the number of passengers carried on each route,
- the weight of baggage and goods carried on each route.
To affect to passenger and freight the exact CO2 emissions they are accountable for, two calculations are performed:
- Most of our aircraft carry both passengers and freight. The quantity of fuel is divided between passengers and freight according to their respective weight (cabin equipment included)
- Several aircraft can be used on the same O&D. The fuel consumption on an O&D os calculated by averaging all fuel consumption on the line during the year, all type of aircraft included.
For new destinations on which we have no real registered data, the amount of CO2 was calculated on the basis of the distance to destination, the average consumption of the aircraft type assigned to the flight and the average load factor on the network.
For more details : see the detailed methodology
Calculation methodology for KLM flights : see KLM website
The current calculator will be updated in order to take into account changes to our operations. The databases (aircraft types, fuel consumptions, passengers transported, …) will be regularly updated with real operational data.
Méthode validée par l'ADEME
L'Agence de l'Environnement et de la Maîtrise de l'Energie (ADEME) est un établissement public à caractère industriel et commercial, placé sous la tutelle conjointe des ministères en charge de l'Ecologie, du Développement et de l'Aménagement durables et de l'Enseignement Supérieur et de la Recherche.
Elle suscite, anime, coordonne, facilite ou réalise des opérations ayant pour objet la protection de l'environnement et la maîtrise de l'énergie.
L'agence met ses capacités d'expertise et de conseil à la disposition des entreprises, des collectivités locales, des pouvoirs publics et du grand public et les aide à financer des projets dans les domaines de l'énergie, l'air, le bruit, les déchets, les sites et sols pollués et le management environnemental.
Chiffres calculés en application de la méthode vérifiée par KPMG Audit, département de KPMG SA, dans son attestation du 18 mai 2008
