The first hybrid buses hits the streets of New York City almost ten years ago and the National Renewable Energy Laboratory has just done a follow-up study to evaluate the second generation. The newer buses were compared to the original Orion VII hybrid units. The more recent buses were found to actually consume 6.8 percent more fuel than the first generation buses due to the EGR system that was added in 2004 to help reduce emissions. However, improvements in the design including a simpler cooling system and battery control system resulted in a 40 percent reduction in maintenance costs and a 24 percent reduction in operating costs. One example of the savings from the hybrid buses is the cost of brake maintenance. Because the hybrid buses use regenerative braking extensively, the buses are able to go more than twice as far between brake lining replacements. The buses currently in use in New York use lead acid batteries while the next generation of Orion buses will switch to lithium ion.

[Source: National Renewable Energy Laboratory]

I'm reporting this comment as:

Reported comments and users are reviewed by Autoblog staff 24 hours a day, seven days a week to determine whether they violate Community Guideline. Accounts are penalized for Community Guidelines violations and serious or repeated violations can lead to account termination.

    • 1 Second Ago
  • From Our Partners

    You May Like
    Links by Zergnet
    Cars for Sale Near You

    Share This Photo X