These are arithmetical, average CO₂ emissions calculated for a standard container (TEU) on the basis of a wide variety of theoretical factors. However, in actual vessel operation the CO₂ levels may diverge from the arithmetical values, for example due to meteorological conditions.
The figures shown above are based on full capacity utilization as measured in nominal capacity. You can apply an average utilization factor and an average distance factor in addition. CCWG recommends in this case a utilization factor of 70 % and a distance factor of 15 %. In order to apply an average utilization factor, divide the CO₂ figure by 0.7. In order to apply a distance factor, multiply the CO₂ figure by 1.15. This will give you a more realistic picture of the amount of CO₂ emitted as, on a global average, ships do not sail fully laden and usually do not connect the ports chosen on a direct service.
No guarantee is given for the completeness or correctness of the calculations. Any liability for the factors applied and the correctness of the calculation method is excluded. You will appreciate that copyright constraints do not permit the integration (“framing”) of the Carbon footprint calculator in external websites.