The U.S. Energy Information Administration (EIA) publishes annual data on the number of alternative fuel vehicles (AFV) in inventory for four types of vehicle fleets: federal government, state governments, transit agencies, and fuel providers.
EIA publishes data on the supply of AFV, gasoline-electric hybrid vehicles, diesel-electric hybrid vehicles from two types of suppliers: original equipment manufacturers and aftermarket vehicle converters.
EIA has estimates and projections for stocks of AFV including electric and hybrid-electric vehicles in the United States in the Annual Energy Outlook. See tables:
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Definitions for AFV and hybrid vehicles
Last updated: May 10, 2022