Wednesday, December 16, 2009

WCI #7: Delivering the US from oil

According to December's Scientific American "Plug-in Hybrid Trucks are improving the long view of the short haul."

The ubiquitous cargo trucks that haul everything from mail to produce use about 40 percent of the fuel consumed in the US every year. Many are looking to use vehicles with better fuel efficiency, but a major technological opportunity is being overlooked by most.

"The fuel use of even a small truck is equal to many, many car," says Bill Van (heh) Amberg, senior VP of Calstart, a clean transportation technology nonprofit and director of the Hybrid Truck Users Forum. "A utility truck as a hybrid would reduce more petroleum than nine Priuses."

The article states: "Some 1,300 commercial hybrids on the toad today get up to twice the fuel efficiency of their conventional counterparts. But these traditional hybrids are inherently limited. They make more efficient use of petroleum-based fuel by capturing some of the energy lost during braking.

"Plug-in hybrids, on the other hand, draw energy from the grid. They can drive for miles - in many cases, an entire day's route - without using any fossil fuel at all. This shifts energy demand away from petroleum and toward grid-based sources."

This still leads to carbon usage, as many electrical plants are still coal burners, but last year 30 percent of electric power was supplied by nuclear and other zero-carbon renewables and with more and more responsible companies shifting their paradigm, this number is sure to grow.

Using plug-in hybrid technology for such vehicles just makes common sense in many ways.

"A cargo truck runs a short daily route that includes many stops to aid in regenerative braking. Most of the US Postal Service's 200,000-plus mail trucks, for example, travel fewer than 20 miles a day. In addition, fleet vehicles return nightly to storage lots that have ready access to the 120- or 240-volt outlets required to charge them."

The Department of Energy has recently launched a massive, $45.4 million project to put near ly 400 medium-duty plug-in hybrid trucks on the road in 50 municipalities and utilities. They are working with Ford using the auto-makers F-550 chassis. They will be running in 2011.

Start-up Bright Automotive is going even further, planning to replace 50,000 conventional trucks by 2014. Their prototype, called IDEA, travels 40 miles on battery power, then switches to a four-cylinder engine that manages an eco-friendly 40 mpg. The truck is streamlined and more aerodynamic than most on the road today and only weighs as much as a mid-sized sedan.

Even with the appeal of carbon savings, the vehicles offer a far more practical benefit. Once battery technology improves the price will make it almost idiotic to not have one.

It won't take long for the vehicles to become the economic choice.

As David Lauzman, Brights VP of product development projects, people will soon be saying, "I have to have them because it saves me money."

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