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 Electric Vehicles TagsElectric Vehicles
Electricity
Fuel Cell Vehicles
GHGenius 4.02
PHEV
 EV Update
 Prepared October 2012
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There is increased interest in electric vehicle mobility with the commercial availability of electric vehicles from several manufacturers and the increased visibility of fuel cell vehicles in large demonstration projects in Canada and elsewhere in the world.

The functioning of the EV section of the model had been reviewed and, while it was functioning correctly, there were a number of key input values and assumptions that have a large influence on the model results. Many of these date back to the original LEM model. With the new electric vehicles on the market, it has been possible to update many of these parameters and algorithms with values that are representative of the current EV models. Two of the key issues investigated were the factors for changes in vehicle weight as a function of battery weight, and the changing efficiency of the vehicle as total weight changes.

Data has been found for the relative performance of EV vehicles for the new vehicles that have been tested by the US EPA. Other issues investigated include the vehicle range, the charging efficiency, the battery efficiency, battery specific energy, battery cycle life, and depth of discharge. The model has maximum and minimum default values for all of the parameters and they have been evaluated to ensure that they are realistic.

The plug-in electric vehicle pathway was added to GHGenius in 2006. There is much more known about these vehicles now that some are commercially available. The latest information on these systems has been reviewed to determine if any changes are required to the structure of GHGenius to better model these vehicles.

Since electricity is the focus of this work, the electric power forecasts in the model have been updated from the 2009 to 2011 NEB forecast. At the same time, the structure of the model has been changed from new forecast values every five years to a value for every year of the forecast period.

There is finally some public information on the performance of FCV that has been reviewed and used to improve the model. The B Class Mercedes is available in both gasoline and FCV variations and test data is available on the Honda Clarity FCV, although there isnít an exact match gasoline vehicle.

Tags: Electric Vehicles - Electricity - Fuel Cell Vehicles - GHGenius 4.02 - PHEV
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