Alternative fueled vehicles are gaining renewed interest with the abundance of cheap, domestic natural gas. Compressed natural gas (CNG) vehicles took off in the 1990s as infrastructure development surged. Service stations then declined for a decade but are now resurging. Liquefied natural gas and ethanol are other options, as is a new clean fuel called GDiesel, a combination of conventional diesel and natural gas that can be used on conventional diesel engines without modifications.
With so many attractive options and an aging delivery fleet in need of an upgrade, the time seems ripe for the U.S. Postal Service to convert or retrofit its fleet. But a quick overhaul remains problematic given a significant hurdle: the Postal Service lacks capital to make a major investment. Another question is where the Postal Service should place its bets. Should it convert to an electric fleet or go with CNG or are the emerging hybrid technologies the way to go? Should it put all its eggs in one basket or should it convert parts of the fleet to different fuels? How does the Postal Service remain flexible enough to adapt to the best technology knowing that rapid innovation in the alternative fuel sector means the next best thing could be right around the corner?
The Postal Service has set a target of increasing alternative fuel use in postal vehicles by 10 percent annually through 2015. It also has goals for reducing postal-vehicle petroleum use and contract transportation petroleum use by 20 percent annually in that time. In its 2012 Sustainability Report, the Postal Service notes that it continues to take proactive steps to increase the use of alternative fuels. It is testing many types of alternative fuels, including fuel cell vehicle, electric long-life vehicles, and new hybrid technologies. “Providing affordable delivery service requires our use of alternate fuels that are conveniently available and competitively priced,” the Postal Service said in the report.
Converting or retrofitting the fleet to an alternative fuel has to make sense financially and logistically based on how the Postal Service operates. Lower fuel costs make the financial benefits of alternative fuels easier to justify. Their environmental benefits are well documented. But logistics remain an issue. If refueling stations are not conveniently or strategically located, the Postal Service has to travel further from its routes. This can affect service and costs.
Share your thoughts on the best strategy for an alternative fuel fleet. Should the Postal Service throw in with one type of fuel or continue experimenting with a number of options? Should it set more aggressive goals for reducing its use of petroleum and increasing its alternative fuel use? Or does its financial situation limit its ability to move aggressively in those areas?