The UPS alternative fuel fleet is a diverse one with multiple technologies, including compressed natural gas, liquefied natural gas, propane, electricity and hydraulic hybrid technology. Since 2000, the alternative fuel fleet has traveled more than 165 million miles.
UPS was the first package delivery company to introduce a hybrid electric vehicle into daily operation with a research program in early 1998. In 2001, the company deployed the industry's first hybrid electric delivery truck into regular service in Huntsville, Ala., where the truck worked a 31-mile route with about 160 pickups and deliveries each day. UPS then introduced its second generation HEV in Kalamazoo, Mich., in 2004, while at the same time testing its first hydrogen fuel cell delivery truck in regular service.