The New York City fleet is one of the largest in the United States. The change that this fleet makes in its purchasing and deployment of alternative fuel vehicles has the ability to make large changes in the future of these types vehicles and the industry as a whole.
New York City has replaced many of its gasoline or diesel powered off-road equipment with electric battery vehicles or better known as EV's. Most of these vehicles are used by the Parks Department or where their size and speed of 25 mph max is compatible with the assignment of the vehicle. Electric powered vehicles will also be ideal for airport grounds service work since electric motors have high torque at low speeds and will be excellent for light towing purposes as well.
These vehicles are considered alternative fuel, because they require no petroleum at all. These vehicles can be recharged by normal 120 V current and now have quick charging rates. The current electric vehicles used by the Parks Department of New York City are using the proven technology of lead acid batteries to store power, Instead of the cutting-edge nickel metal hybrid batteries. At this point in time, the lead acid batteries are easier to replace and more cost-effective.
Compressed natural gas program
New York City was a strong advocate for light duty compressed natural gas or CNG vehicles during the 1990s. Recent decisions by the original equipment manufacturers, however, have left the fleet without choices for new or replacement dedicated CNG vehicles. Only the Honda Civic GX is available as a sedan and supports the CNG platform. NYC fleet has been purchasing these vehicles to keep its compressed natural gas program in operation.
The Honda Civic GX is a dedicated CNG vehicle, but there are alternatives for CNG hybrid. The Chevrolet Cavalier as well as F150 and E350 trucks are considered compressed natural gas hybrids because they burn regular fuel in conjunction with compressed natural gas. One of the main problems with a CNG vehicle is the refueling process. Specialized pumps that require a lot of maintenance are required to refuel the vehicles. The lack of infrastructure or the availability of refueling stations has continued to stagnate the compressed natural gas programs.
The NYC fleet operation has taken a leadership role in the advancement of alternative fueled vehicles very quietly. Although they seek no praise for their contribution they should be commended for their green purchasing programs.
Mark is a Certified Master Technician and a member of the society of automobile engineers (SAE). For more insider information visit his hybrid vehicles page.
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