Clean Cities Petroleum Savings by AFV Type

2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015
CNG 88.8 56 81 102 104 85.398 140.639750788926 167 191 231 293 401.9
E85 16.3 26 45 37 37 72.783 38.57599089271499 49 38 48 51 67.8
Biodiesel 21.4 47 63.2 61 74 38.976619934563 28.520535473764003 70 59 61 59 77.5
LNG 0 8 15.7 9 14 11.939 23.419107788602002 28 21 22 34 53.3
Propane 39.4 32 42 30 25 18.229 18.259948864866 19 27 27 32 36.9
Electric 3 2 5 5 4 29 9 16 12 20 27 33.2
RNG 0 0 0 0 0 0 0 0 0 0 0.7 1.2
Hydrogen 0 0.05 0.09 0.12 0.07 0.05 0.03 0.29 0.14 0.33 0.32 0.62
Source: Clean Cities annual metrics reports, 2004-2015.
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 2015.