Carbon emissions by vehicle type

Table 1.5. Estimated annual carbon emissions by vehicle type.

Estimated annual carbon emissions by vehicle type and fuel source are summarized in Table 8.5. Existing hybrid vehicles emit half as much carbon as 2003 ICE vehicles, explainable by the difference in assumed fuel efficiencies. For the EV, annual carbon emissions depend on the source of electricity. Annual estimates range from zero for non-carbon based electricity sources to 0.71 tons per year if coal is used to produce electricity. 

A number of studies on motor-vehicle emissions have been realised for the preparation of directives and have been formalised by different Community Directives- Other studies on motor-vehicles are destined to Lead to a further stage in the reduction of emissions- It must be stated that these studies concern not only the problems of hydrocarbon emissions but also the whole spectrum of emissions one cannot distinguish between different pollutants and, apart from hydrocarbons, one must simuItaneoulsy consider nitrogen oxides, carbon monoxides as well as taking into account economic aspects of energy consumption and prices- In these studies no real distinction is made between the different types of hydrocarbons, one considers total hydrocarbons. 

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