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train in the EU



kg CO2e


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

The following data have been used to calculate the emissions from the consumption of electricity.

  • Commuting distance, one way: 12 km every working day (this value refers to the average commuting distance for trips to/from school/work by car and/or public transport according to a Swedish Travel Survey from 2017)
  • Number of working days per year: 235 (5 days per week, 47 working weeks per year)
  • Train occupancy: 100% 
  • Energy consumption of commuter trains powered by electricity: 0.17 MJ per seat and km
  • Emissions from the average electricity mix in the EU: 73 g CO2e per MJ (source: Ember’s Yearly Electricity Data, refers to the year 2021)

The electricity consumption per seat for all commuting trips in a year is calculated by multiplying the total commuting distance by the energy consumption per seat and kilometer.

24 km per day × 235 days per year × 0.17 MJ per seat and km = 959 MJ per seat per year

The calculation shows that the electricity consumption amounts to 959 MJ per seat. Since we have assumed that the train is full, this electricity consumption corresponds to the electricity consumption per passenger. 

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

959 MJ per passenger × 73 g CO2e per MJ ≈ 70 kg CO2e per passenger

The calculation shows that the emissions amount to 70 kg CO2e.

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