This page contains a Flash digital edition of a book.
provide a payback within the period of designating vent locations and ducting Nevertheless, reductions in idling and
ownership. paths, standardizing connections and emissions were achieved.
components, coordinating main engine
On the hOrizOn
Even though a number of operational
and idle system use, and developing
Evaluating which solutions make
differences existed among the fl eets
system management tools. The
operational and fi nancial sense for
involved with this demonstration, several
further development of these features your fl eet can be challenging. ATRI’s
main factors infl uenced the payback
is expected to improve performance, research can fi ll the knowledge gaps
periods. These factors included:
decrease installation costs and provide with real world data for your decision-
• Baseline idlingF— leets with higher
better management oversight and making process.
baseline idling percentages have
utilization.
the opportunity to reduce a greater
A copy of the full report, Demonstration
All of the idle reduction technologies
amount of idling, thereby achieving
of Integrated Mobile Idle Reduction
evaluated in this demonstration resulted
a faster payback from fuel savings.
Solutions, is available from ATRI at www.
in substantial reductions in main engine
Conversely, fl eets with low idling
atri-online.org.
idling. Some of the units experienced
percentages may not be able to
operational issues which reduced
achieve a payback, even when
their effectiveness and lengthened Rebecca M. Brewster is
substantial reductions in idling occur,
their payback period. Others were President and COO of American
due to the limited number of idling
not expected to provide a payback. Transportation Research Institute.
hours which can be affected.
• UsageS— ome of the idle reduction
units experienced operational
issues which either limited their
effectiveness or resulted in the
units being inoperable for a period
of time. The payback periods for
these units were extended due to
the 1) diminished fuel savings during
periods of inoperability, 2) additional
time needed to compensate for
these periods of inoperability and
3) added costs associated with
downtime, repair and maintenance.
Maximizing the use of idle reduction
technologies shortens the payback
period. Therefore, once a truck
is equipped with a mobile idle
reduction technology, efforts to
ensure the exclusive use of this
technology will help to improve the
fi nancial performance.
• CostsB— eyond differences in the
purchase and installation price of the
various idle reduction technologies,
annual maintenance costs and the
potential for recapturing a portion of
the purchase price upon the sale of
a truck are two factors that are less
understood. Determining the period
of benefi ts (year-round or seasonal)
and the price of diesel fuel are also
important considerations when
determining the payback period.
During these demonstrations, the
average price of diesel ranged from
$2.69 to $3.15 per gallon. The
average price soared to a high of
TH
E
B
$4.76 per gallon the week of July
E
S
14, 2008 but has since fallen. This
T
substantial variation in the price
O
of fuel, combined with uncertain
S
D
L
B
F
long-term maintenance costs
R
O W
H
T
O
and recapture values adds to the
diffi culty in determining the return
on investment for idle reduction
technologies.
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Participating carriers also identifi ed
several features which could facilitate
the integration of commercially available
idle reduction technologies into the truck
manufacturing process. These features
include improving cab insulation,
improving air fl ow by
Roadwise | FebRuaRy/MaRch 2010 | www.mttrucking.com 13
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