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 Transportation Today
 

Hybrid truck shows it’s tough enough for government work

With just 7,300 miles on its odometer, one of the newest King County work trucks is already proving its worth.

In October, the King County Department of Transportation put a new medium-duty lift truck into service. It looks just like other trucks that are used to hoist workers into the air to repair traffic signals or maintain roadside trees – but this one is the first that runs on a hybrid-electric system.

Photo: Bob Stanford (left) and John Wilson
County crews, including Bob Stanford and John Wilson, enjoy the efficient operations of the new hybrid truck. King County photo by Ned Ahrens.

The Fleet Administration Division, which manages vehicle purchases for the county, is already seeing great fuel economy results from the new addition, not to mention all of the environmental benefits.

“When I found out that Kenworth was about to unveil its first production of hybrid trucks, I wanted King County to be the first governmental agency to purchase one,” said King County Executive Ron Sims.

KCDOT Director Harold Taniguchi said Sims has pushed the depart-ment to continue its efforts to be one of the greenest transportation agencies in the nation.

“King County was the first governmental agency in the United States to purchase and put in service hybrid articulated buses. It was one of the first agencies in the State of Washington to purchase hybrid automobiles, and a plug-in hybrid auto,” said Taniguchi. “It is now again the first to purchase and put in use a hybrid truck.”

Fleet Administration Division Director Windell Mitchell said the new lift truck has already achieved a 25 percent reduction in fuel consumption compared to conventional diesel trucks in the fleet. This contributes to more efficient operations by the crews, because they can remain in the field for longer periods of time without refueling.

Photo: The new hybrid has a 50-foot lift boom.
The new hybrid has a 50-foot lift boom.

Mitchell said not only is the new truck using less fuel when it’s moving between jobs, but also when it’s stationary.

“On our non-hybrid trucks, the motor has to be running for the lift to operate,” said Mitchell. “With this truck, the lift operates off the energy stored in the hybrid battery. That’s both cheaper and quieter.”

Mitchell headed up efforts to form a consortium of local and state government agencies interested in taking hybrid vehicle technology to the next level with the production of medium and heavy-duty work trucks. Together, they have opened the market for hybrid diesel-electric truck purchases, and also serve as a testing ground to provide on-the-road experience, data collection, and analysis of the new trucks. Through the purchasing power of the consortium, Mitchell was able to negotiate a deal so that King County did not have to pay a premium for the hybrid system.

The new Kenworth lift truck will soon be joined in the fleet by and International hybrid vehicle hauler, and an International lift truck will come on board this summer. As other trucks in the fleet age and need to be replaced, Mitchell says the plan is to purchase new hybrid trucks whenever possible.

“The vision and pioneering spirit of Executive Ron Sims really empowers us to embrace cutting-edge technologies,” said Mitchell. “His leadership has made King County a national leader and pacesetter in environmentally friendly and responsible transportation services.”

 

 

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Updated:  January 29, 2008

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