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 alternatefuelsUS1995_2004
Table 1. Estimated Number of Alternative-Fueled Vehicles in Use in the United States, by Fuel, 1992-2000
Fuel 1992 1993 1994 1995 1996 1997 1998 1999 2000 Average Annual
Growth Rate
(Percent)
Liquefied Petroleum Gases (LPG) \a\ 221,000  269,000  264,000  259,000  263,000  263,000  266,000  268,000  270,000 
2.5
Compressed Natural Gas (CNG) 23,191  32,714  41,227  50,218  60,144  68,571  78,782  89,633  101,991 
20.3
Liquefied Natural Gas (LNG) 90  299  484  603  663  813  1,172  1,422  1,682 
44.2 
Methanol, 85 Percent (M85) \b\ 4,850  10,263  15,484  18,319  20,265  21,040  19,648  19,497  18,725 
18.4
Methanol, Neat (M100) 404  414  415  386  172  172  200  200  200 
-8.4 
Ethanol, 85 Percent (E85) \b\ \c\ 172  441  605  1,527  4,536  9,130  12,788  22,359  30,017 
90.6
Ethanol, 95 Percent (E95) \b\ 38  27  33  136  361  347  14  14  14 
-11.7 
Electricity 1,607  1,690  2,224  2,860  3,280  4,453  5,243  6,417  7,590 
21.4
Non-LPG Subtotal 30,352  45,848  60,472  74,049  89,421  104,526  117,847  139,542  160,219 
23.1
   Total 251,352  314,848  324,472  333,049  352,421  367,526  383,847  407,542  430,219 
6.9 
   \a\ Values are rounded to thousands. Accordingly, these estimates are not equal to the sum of Federal fleet data (for which exact counts are available) and non-Federal fleet estimates (rounded to thousands).
   \b\ The remaining portion of 85-percent methanol and both ethanol fuels is gasoline.
   \c\ In 1997, some vehicle manufacturers began including E85-fueling capability in certain model lines of vehicles. Those vehicles are capable of operating on E85, gasoline, or both. Alternative fuel vehicles (AFV's) in use include only those E85 vehicles believed to be intended for use as alternative-fuel vehicles (AFV's). These are primarily fleet-operated vehicles. All of the E85 vehicles are included in the data for "AFV's made available." 
   Note: Estimates for 1998-2000 have been revised since their original publication in October 1999. The revision reflects new data for the Federal sector only. Estimates for 1999 are preliminary and estimates for 2000, in italics, are based on plans or projections. Estimates for historical years may be revised in future reports if new information becomes available.
   Sources: 1992-1995: Science Applications International Corporation, "Alternative Transportation Fuels and Vehicles Data Development," unpublished final report prepared for the Energy Information Administration (McLean, VA, July 1996) and U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy. 1996-2000: Energy Information Administration, Office of Coal, Nuclear, Electric, and Alternate Fuels.