Skip to Content
U.S. Department of Energy Energy Efficiency and Renewable Energy

Maps and Data

Find maps and charts showing transportation data and trends related to alternative fuels and vehicles.

Clean Cities Alternative Fuel Vehicle Inventory

2004 2005 2006 2007 2008 2009 2010
E85 47643 72899 221834 385671 524169 642520 403981
Biodiesel* 31922 52275 91584 98785 17222 2814 88726
CNG 76257 49271 57458 55021 51121 44317 42911
Propane 31338 21117 25543 23628 22260 7937 13196
Electric 9241 7350 9376 4999 13761 4490 8826
LNG 0 1873 2271 1731 2053 2038 3410
Hydrogen 23 42 72 86 75 74 62
Source: Clean Cities annual coalition reports, 2004-2010.
Notes: *Beginning in 2008, vehicles using B20 only counted as alternative fuel vehicles if they were fleet-based.
This chart shows the number of alternative fuel vehicles on the road in a given year, deployed with help from Clean Cities. The number of E85 vehicles reported in 2010 dropped as efforts were made to ensure that only vehicles that were in Clean Cities fleets or refueling at Clean Cities stations were counted.