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JEFF GRAY
May 16, 2008

The box-like batteries on top of the Toronto Transit Commission's brand new and premium-priced hybrid electric-diesel buses are lasting only half as long as their manufacturer promised.
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The TTC blames its hybrid buses' fuel-economy problems on the fact that they are being used more on suburban high-speed routes, where hybrid engines are less efficient.


Once more of the buses are running on stop-and-go congested routes downtown, Mr. Webster says, their fuel economy numbers should go up as the bus can rely more on the electric power it creates with its regenerative braking system.
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