nquiry About Freight Emission Factors and Active Energy Intensity

Thanks for your questions.

Electric vehicles are not currently included on the freight emissions sheet. We will consider that for the next update at least for the medium duty trucks.

One of the challenges in for freight emissions is that factors beyond just the fuel and engine factor into the energy requirements. For example for trucks, the route can have have a huge impact of the fuel consumed, elevation changes, speeds etc. The active energy consumption for trucks is an estimate from some Canadian data and it can be adjusted by the user if actual data is available by using the energy intensity adjustment cell.

For marine transport the ship size is probably the factor that has the largest impact so that factor is used to adjust the active energy intensity. Vessel speed also influences the energy use.

For rail, the model uses a time series of data for Canadian and US rail system to get the active energy intensity for the year that the model is being run for.

Differences in drive train efficiency for the different fuels is adjusted for in row 10 , relative efficiency.

I hope that this helps.

Regards
Don O'Connor