Search Results

A vehicle-cycle module of the Greenhouse gases, Regulated Emissions, and Energy use in Transportation (GREET) model has been developed at Argonne National Laboratory. The fuel-cycle GREET model has been published extensively and contains data on fuel-cycles and vehicle operation. The vehicle-cycle module evaluates the energy and emission effects of vehicle material recovery and production, vehicle component fabrication, vehicle assembly, and vehicle disposal/recycling. The addition of the vehicle-cycle module to the GREET model provides a comprehensive lifecycle-based approach to compare energy use and emissions of conventional vehicle technologies and advanced vehicle technologies such as hybrid electric vehicles and fuel cell vehicles.

A fuel-cycle model-called the Greenhouse gases, Regulated Emissions, and Energy use in Transportation (GREET) model-has been developed at Argonne National Laboratory to evaluate well-to-wheels (WTW) energy and emission impacts of motor vehicle technologies fueled with various transportation fuels. The new GREET version has up-to-date information regarding energy use and emissions for fuel production activities and vehicle operations. In this study, a complete WTW evaluation targeting energy use, greenhouse gases (CO2, CH4, and N2O), and typical criteria air pollutants (VOC, NOX, and PM10) includes the following fuel options-gasoline, diesel, and hydrogen; and the following vehicle technologies-spark-ignition engines with or without hybrid configurations, compression-ignition engines with hybrid configurations, and hydrogen fuel cells with hybrid configurations.