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Corporate

Hybrid Electric School Bus

The Plug-in Hybrid Electric School Bus Project is a collaborative effort led by Advanced Energy to transform the nation’s school bus market by introducing plug-in hybrid technology. Already, the project has led to the delivery of buses across the nation, two of which were delivered in North Carolina in May 2007.

Background

Hybrid bus technology offers benefits ranging from cutting operation costs, to improving air quality, especially in areas experiencing non-attainment of the U.S. Environmental Protection Agency (EPA) air quality standards, improving the health of school children who presently ride diesel powered school buses.

Feasibility studies suggest that hybrid buses can be less costly to operate. Actual operation of a fleet of such buses, however, is being gathered to verify this. Operating costs for hybrid vehicles are shown to be lower, both in fuel savings and in maintenance costs, particularly with plug-in hybrids. This feasibility study will help in fully understanding the life cycle costs of hybrid buses.

Recent medical studies highlight the dangers of particulate pollution of the sort produced by diesel bus engines. Particulate matter has recently been highlighted in several reports as a serious concern on school buses, causing problems ranging from increased cases of illness to lung cancer. Removing this type of exposure is the number one benefit of hybrid bus technology.

Hybrid School Bus as Pilot Program

Advanced Energy advocates using plug-in hybrid electric school buses because:

  1. The duty cycle of school buses makes them an ideal candidate for hybrid technology, particularly plug-in hybrid technology, in which most of the energy used by the bus comes from a pre-charged battery pack.
  2. Plug-in hybrid electric bus technology dramatically reduces the environmental impacts of school buses by:
    • Improving the efficiency of energy use, resulting in fewer emissions per mile
    • Replacing mobile sources with stationary central power plant sources that are already much cleaner and easier to control
    • Moving emissions from daylight hours to nighttime hours, reducing the creation of ozone and smog
  3. Of all the miles driven by buses in North Carolina, roughly 78 percent are school bus miles.
 

Related Links

Media Contact
Barbara Carter
Corporate Communications
919-857-9036
bcarter@advancedenergy.org

 

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