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

Clean Cities Petroleum Savings by AFV Type

2004 2005 2006 2007 2008 2009 2010 2011
CNG 88.8 56 81 102 104 85.398 140.639750788926 167
E85 16.3 26 45 37 37 72.783 38.57599089271499 49
Biodiesel 21.4 47 63.2 61 74 38.976619934563 28.520535473764003 70
LNG 0 8 15.7 9 14 11.939 23.419107788602002 28
Propane 39.4 32 42 30 25 18.229 18.259948864866 19
Electric 3.2 2 5 5 4 29.355 8.512272418535002 16
Source: Clean Cities annual metrics reports, 2004-2011.
Notes: Savings are measured in gasoline-gallon equivalents (GGEs), representing a quantity of fuel with the same amount of energy contained in a gallon of gasoline.
This chart shows trends in Clean Cities petroleum savings by various types of alternative fuel vehicles from 2004 to 2011.