Hybrid Peterbuilt TractorAfter an early run-up, diesel-electric hybrid truck sales have hit somewhat of a plateau, as the earliest adopters of the technology continue their real-world testing to gain a solid understanding of the economics involved in acquiring and operating the hybrid trucks.

To be certain, every reported experience with the hybrids to date has been positive. Fleets both large and small are realizing the promised fuel economy gains of roughly 30 percent when the hybrids are deployed on appropriate routes (urban, stop-and-go, high-cycle). 

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