What is the difference between AFV estimates and AFV survey data?
EIA uses two methodologies to account for alternative fuel vehicles and alternative fuel usage; (1) industry wide estimates and (2) a fielded survey. Section 503(b) (2) of the Energy Policy Act of 1992 directed EIA to provide data on the number, type, and location of all alternative fuel vehicles in use in the United States and the amount of alternative fuel consumed. Since 1995, EIA has published annual estimates of total AFVs in use and alternative fuel consumption. Estimation methods vary by vehicle ownership category (Federal government, State and local government or private) and by fuel type. The best estimates for each vehicle category were made after an extensive search of available data sources (e.g., State energy offices, web sites of various AFV stakeholders, industry groups, trade associations). Estimation methods are described in Appendix A of Altrenatives to Traditional Transportation Fuels 1996.
EIA uses two methodologies to account for alternative fuel vehicles and alternative fuel usage; (1) industry wide estimates and (2) a fielded survey. Section 503(b) (2) of the Energy Policy Act of 1992 directed EIA to provide data on the number, type, and location of all alternative fuel vehicles in use in the United States and the amount of alternative fuel consumed. Since 1995, EIA has published annual estimates of total AFVs in use and alternative fuel consumption. Estimation methods vary by vehicle ownership category (Federal government, State and local government or private) and by fuel type. The best estimates for each vehicle category were made after an extensive search of available data sources (e.g., State energy offices, web sites of various AFV stakeholders, industry groups, trade associations). Estimation methods are described in Appendix A of Altrenatives to Traditional Transportation Fuels 1996. The Alternative Transportation Fuels and Alternative Fueled Vehicles Survey (
