The Car and Truck Fleet and Leasing Management Magazine

Denver Transportation District to Retrofit 18 More Hybrid-Electric Shuttle Buses

May 21, 2007

FREDERICK, Colo. --- UQM Technologies, a developer of alternative energy technologies, announced it has received an order from the Denver Regional Transportation District for generators and motor controllers to retrofit an additional 18 hybrid-electric mall shuttle buses. Each 45-foot hybrid electric mall shuttle bus will be retrofitted with a 35 kW generator and two power electronic motor controllers to control the operation of the electric propulsion motors now installed in each bus. This order represents the balance of the equipment necessary to complete the retrofitting of RTD's entire hybrid electric mall shuttlebus fleet.Denver RTD introduced its hybrid electric fleet of MallRide shuttles in 2000, the first large-scale deployment of hybrid electric buses for transit use in the United States. A total of 36 MallRide shuttles operate on the 16th Street Mall in downtown Denver, providing a free ride for passengers across the 1.3-mile long 16th Street Mall.The hybrid electric MallRide shuttle buses are powered by a compressed natural gas fueled 2.5 liter Ford industrial engine that operates at 2,200 r.p.m. and will turn the specially designed generator to produce electricity to recharge the bank of batteries that power the shuttle. The specially designed motorcontrollers feature regenerative braking, a process in which kinetic energy is converted to electrical energy through the braking process. This electrical energy can also recharge the battery pack. Each 45-foot MallRide shuttle bus features a low floor design (14 inches above street level) that makes it easier for passengers to step on and off the bus and can transport up to 116 passengers."Our systems have now been in daily service on the 16th Street Mall for well over a year, and this order will ensure that all MallRide shuttles will run for many years to come powered by reliable, high-performance UQM equipment," said William G. Rankin, president and CEO of UQM Technologies Inc.Denver RTD serves the eight-county greater Denver metropolitan area.
Twitter Facebook Google+


Please note that comments may be moderated. 
Leave this field empty:

Fleet Incentives

Determine the actual cost of owning and running a vehicle in your fleet. Compare vehicles by class and model.


Fleet Tracking And Telematics

Todd Ewing from Verizon Connect will answer your questions and challenges

View All


Fleet Management And Leasing

Jack Firriolo from Merchants will answer your questions and challenges

View All


Fuel Management

Bernie Kanavagh from WEX will answer your questions and challenges

View All


Sponsored by

CSA stands for Compliance, Safety, Accountability, and refers to a U.S. Department of Transportation (DOT) program designed to help ensure over-the-road and other heavy truck drivers adhere to various DOT safety requirements and laws.

Read more

Fuel Saving Strategies Survey

View our 2008 survey to benchmark your fleet's fuel and green strategies with other fleets.

Fuel Calculator

A managed fuel program can help you save time and money and gain control over the way you fuel your vehicles. Determine your potential savings by using our fuel calculator.
Launch Fuel Calculator 

Fuel Prices

U.S. Gasoline and Diesel Fuel Prices.

Launch Fuel Prices 

Up Next

More From The World's Largest Fleet Publisher