Chart 4: Life-time CO2 savings of the use phase for selected vehicle examples
Life-time CO2 savings [t/100 kg]
Long distance bus
High speed passenger train
freight train freight train
Source: IFEU 2002 from various sources Remark: Error ranges signify the sensitivity to uncertainties in basic data
Road vehicles increase their CO2 saving potentials in comparison to the primary energy savings in our scenario. This is due to the share of nuclear and hydro power, which create almost no CO2 emissions in comparison with energy derived from fossil fuels. For the life-time CO2 savings in Chart 4 it is also assumed that the electricity mix and the emission factors will remain at their current level over the whole life-time of the vehicle. A steady reduction in the CO2 emission factor by 50 % over the life-time of the vehicle means that only 75 % of the CO2 savings stated in Chart 4 will be achieved. While all figures for road vehicles in Chart 4 are calculated for fossil fuels, the share of bio-diesel and other alternative fuel options may be changing as well.