Emissions and Energy Use Model – GREET

The Greenhouse Gases, Regulated Emission, and Energy Use in Transportation (GREET) Model is a full life-cycle model for evaluating the energy and emission impacts of various vehicle and fuel combinations. The first version of the GREET model was released in 1996. Since then, the model has been updated and expanded to include additional vehicle types and fuels. The results below are from GREET Model 1.8d.1. The California grid mix (bars outlined in green) was chosen due to the high renewable energy mix in that state. In contrast, the West Virginia grid mix (bars outlined in black) is primarily coal. Both of these are compared against the average U.S. grid mix for various vehicle technologies.