The Street has noted that "United Parcel Service Inc. added 20 hybrid electric vehicles to its Chicago fleet and 17 to its Washington, D.C. fleet. The 37 new trucks in Chicago and Washington, D.C. are among 200 new HEVs deployed recently to eight U.S. cities. The 200 new trucks will operate in Austin, Houston, Philadelphia, Chicago, Washington, D.C., Long Island, Minneapolis and Louisville. Currently, 50 UPS hybrid electric vehicles (HEVs) are on the road in Atlanta, Dallas, Houston and Phoenix. The hybrid power system combines a conventional diesel engine with a battery pack, and use regenerative braking, where energy from the friction of applying the brakes is captured and returned to the battery as electricity. The HEVs will cut down on fuel consumption by about 35 percent, the company said, equaling about 100 regular UPS delivery vehicles." Read the full article here.