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 Fuel Economy TagsFuel Economy
GHGenius 4.03
 Fuel Economy Update
 Prepared March 2013
 Download | View Abstract | Hide Abstract
The fuel economy of the base vehicles in GHGenius has been almost constant, with only a very small change between 1995 and 2025 and then a slightly larger change between 2026 and 2050. The rates of change that were in the model were estimates made in conjunction with NRCan staff almost 15 years ago. There is new data from the EPA and Transport Canada that can be used to get much better estimates of the rate of change in fuel consumption in both Canada and the US for use in the model.

There have also been new regulations introduced that will see fuel consumption of new vehicles in Canada and the United States drop dramatically, first between 2012 and 2016 and then in a second step between 2017 and 2025. This new regulatory requirement has been incorporated into the model.

The fuel economy in the model is also used to set the vehicle weight and the distribution of materials used in the construction of the vehicle. This data is then used to calculate the GHG emissions from manufacturing and assembling the vehicle. One set of data that was developed for the Transportation Table in 1999 has been used in the model.

This work has reviewed the weight data and adjusted the vehicle weight - fuel economy relationship in the model. This has given a much better representation of the vehicle manufacturing emissions. We have developed historical relationships and use that information along with information from the EPA that was used to develop the new standards to arrive at a forecast for future changes.

The work has also reviewed the literature for any new information on the distribution of different materials in different classes of vehicles.


Tags: Fuel Economy - GHGenius 4.03
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