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April 01, 2010  |   Comments (2)   |   Post a comment

Interest in Thomas Built hybrid bus grows


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HIGH POINT, N.C. — Pupil transportation operations are increasing their efforts to operate environmentally-friendly school buses. Thomas Built Buses reports that it has received more than three dozen orders for its new Saf-T-Liner C2e diesel-electric hybrid bus.

Thomas has been delivering C2e units to customers since July 2009. Fort Worth (Texas) Independent School District (ISD) is one district that recently added Thomas C2e buses to its fleet. The district was awarded a $1,635,256 grant from the Department of Energy Clean Cities program, a part of the American Recovery and Reinvestment Act, to fund the purchase of 25 units.

The federal funds are part of a $13.2 million grant being administered by the North Central Texas Council of Governments. The grant money will help the region fund 382 fuel-efficient vehicles and 11 refueling stations.

“We are excited that the incremental cost is fully funded, allowing us to add the C2e hybrid buses to our fleet,” said Michael Horsley, director of fleet operations for Forth Worth ISD. “We try to be good stewards of taxpayer dollars and this grant allows us to not only expand our operations but do so in a way that delivers cleaner emissions and improved fuel economy.” 

Thomas Built developed the C2e from a prototype that reduced emissions and improved fuel economy by 30 percent or more, the company said. The Saf-T-Liner C2e also reduces brake wear and component maintenance.

The hybrid is powered by a Cummins diesel engine, an Eaton transmission and an electric motor developed jointly by Thomas Built, Eaton Corp. and Freightliner Custom Chassis Corp. The regenerative configuration allows schools to operate the new buses without adding infrastructure with plug-in recharging stations.

“By providing groundbreaking technologies and high-quality products, we are able to deliver on our mission to minimize the environmental impact of our transportation solutions,” said Kelley Platt, president and CEO of Thomas Built Buses. “With products like the C2e, Thomas is making it possible for school districts to be more environmentally responsible as hybrids are incorporated into fleets nationwide.”


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To a general school bus driving 20,000 miles per year with 7.5 MPG fuel economy under $3.00 per Gallon fuel price, the pay back time for DCD Air-Hybrid retrofitting could be only 3 years, while Diesel-Electric Hybrid may need 20 years to pay back. Yet we just need to retrofit 3 conventional diesel vehicles, the resulted fuel savings, the total emission and greenhouse gas reductions will go beyond those saved by one Diesel-Electric Hybrid vehicle, but the investment to acquire DCD Air-Hybrid technology is less than one-fifth of the investment to acquire Diesel-Electric Hybrid technology. Trying is believing. Once you have tried, you will find that DCD Air-Hybrid is an effective, inexpensive fuel saving solution. Carbon economy analysis shows that DCD Air-Hybrid is a most effective and most affordable green vehicle technology known by human being. It also has no penalties from battery weight, cost and life span that Diesel-Electric Hybrid possesses. Please visit www.heihetech.com for details.

chapelon    |    Apr 13, 2010 02:20 AM

Diesel-Electric Hybrid is a very efficient green vehicle technology that it could reduce emissions and by 30 percent or more. It is an advanced technology being applied into to school buses and all kind of public transit vehicles. However, its excellent performance does not come for free. Once two power systems are integrated into one vehicle, both diesel engine and electric driving system including motor and battery, the cost jumps up. The resulted price becomes a big issue. The affordability will keep general users away, unless there’s some kind of grant from government and taxpayer. Based on the fact that $1,635,256 grant from the Department of Energy to fund the purchase of 25 Diesel-Electric Hybrid school buses, we learn that the incremental cost could be as high as some $65,410 per vehicle. This is a price not affordable by most of school districts who are also expecting to reduce emissions and to improve fuel economy. What could they do without funding resource? Here is another hybrid solution ----- DCD Air-Hybrid. Not all the hybrids are born equal. DCD Air-Hybrid is an innovative green vehicle technology base on Dynamic Cylinder Deactivation (DCD). Once DCD is introduced into conventional diesel engines, it implements “Air-Hybrid” mechanism inside the engine, recovering cylinder residual heat through air expansion. DCD Air-Hybrid is compatible to most of existing vehicles, easy to be applied by retrofitting. With under $4,000 retrofitting price, it yields 10% to 15% fuel economy improvement. To a general school bus driving 20,000 miles per year with 7.5 MPG fuel economy under $3.00 per Gallon fuel price, the pay back time for DCD Air-Hybrid retrofitting could be only 3 years, while Diesel-Electric Hybrid may need 20 years to pay back. Yet we just need to retrofit 3 conventional diesel vehicles, the resulted fuel savings, the total emission and greenhouse gas reductions will go beyond those saved by one Diesel-Electric Hybrid vehicle, but the investme

chapelon    |    Apr 13, 2010 02:17 AM

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