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kg CO2e


Click the expendable headlines to look at each step of the calculation. 

To calculate the greenhouse gas emissions, we have used the following data:

  • Distance between Frankfurt and Berlin , one way: 500 km
  • Average train occupancy: 90% 
  • Energy consumption of high-speed trains powered by electricity: 0.16 MJ per seat and kilometer (source: Fröidh, 2008).
  • Emissions from the average electricity mix in Germany: 98 g CO2e per MJ (source: Ember’s Yearly Electricity Data, refers to the year 2021).

The electricity consumption per seat for the whole trip is calculated by multiplying the total distance by the energy consumption per seat and kilometer.

500 km × 2 × 0.16 MJ per seat and km = 160 MJ per seat

The calculation shows that the electricity consumption amounts to 160 MJ per seat.

The electricity consumption per passenger is calculated by dividing the electricity consumption per seat by the average occupancy rate, which is a measure of how full the train is. An occupancy rate of 90% means an average of 0.90 passengers per seat.

160 MJ per seat/0.90 passengers per seat ≈ 178 MJ per passenger

The calculation shows that electricity consumption amounts to 178 MJ per passenger.

The emissions are calculated by multiplying the electricity consumption per passenger by the emission factor for electricity.

178 MJ per passenger × 98 g CO2e per MJ ≈ 17 kg CO2e per passenger

The calculation shows that the emissions amount to 17 kg CO2e, which has been rounded to 15 kg CO2e on the card.

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