filter, EGR valves and in the future
the SCR system.”
Based on such costs, Elzinga said,
“We are considering hybrids as an alter-
native.” Terex has a good foundation
to work from, as it already supplies
all-electric lift equipment, electrical com-
ponents and circuitry and its recently
introduced AL- 5 hybrid light tower (see
April 2011, Diesel Progress).
“When we come out with some sort
of hybrid in the future, it will be a complement to our Tier 4 lineup — not to
necessarily replace it,” said Elzinga.
“We decided we would let the market
decide how that would go in terms of
hybrids eliminating Tier 4.
“If you look at cars, for example,
you can get a Lexus with a hybrid or a
Lexus with an engine. They are letting
the consumers make the choice. We
are working on it and we will let our
customers make the choice.
“Our customers are already familiar
with dc-powered machines. They are
already familiar with a less than 25
hp engine. There’s an electric power
INDUSTRY NEWS
part that our customers are already
familiar with. Although it would be a
new type of hybrid, it would be pos-
sibly something they are familiar with.
We’re not in the business of designing
exotic systems — we’re in the busi-
ness of integrating technologies that
are proven and available.”
Manitou Americas is also in the test-
ing phase of a hybrid development.
The company is currently studying
duty cycles as part of its decision proc-
ess on when and where to bring the
technology to market.
“We’re investigating whether that
type of system has any merit,” said
Saiia. “We don’t have the answer to
that yet, but it depends on a lot of
facts centered on how the equipment
is used. It might make more sense on
a telehandler than a skid-steer loader
because the duty cycle is a little bit
more predictable.
“The bottom line is to determine
whether a hybrid package is less
expensive than all the emissions
devices you would need in 2015 on
a higher-horsepower piece of equipment. This is where a piece of machinery becomes very expensive and very
complicated, and that’s what we are
asking the questions about.
“It only makes sense if delivered,
and operating costs to the customer
are less, and we don’t know that yet.
What we’re doing is looking at duty
cycles because you have to have
enough time in a duty cycle either to
restore energy levels to a battery or a
hydraulic storage device.
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