Environmental Engineering Reference
In-Depth Information
100
80
VMT Satisfied by PHEV
All-Electric Range
60
40
20
0
0
60
120
180
240
300
PHEV Electric Range (miles)
Electric-powered driving. Fraction of VMT driven on
electricity as a function of the PHEV electric range. (Sources:[
fig. 11.6
,
].
Credit: Argonne National Laboratory, managed and operated by
University of Chicago Argonne, LLC, for the US Department of
Energy under Contract no. DE-AC
-
CH
)
Figure
.
is based on data from the National Highway
Traf
c Safety Administration (NHTSA) and shows the
percentage of light vehicles that travel less than some
number of miles per day [
,
,
]. For example,
%
of all vehicles travel less than
miles per day, and about
looks at
the numbers from a different perspective: what percentage
of all vehicle miles traveled would be traveled on electricity
in a
% travel less than
miles per day.
Figure
.
fleet of PHEVs with a certain range on electricity
alone [
]. Even if you travel more than the range
allowed by the batteries for all electric operation, the
,
rst
part of your trip is on electricity. Looked at this way, if all
