Yellowstone Park Gains Biodiesel Tour Bus

October 1, 2003 [SolarAccess.com] A modernized version of the traditional Yellowstone National Park tour bus has been developed as a low-emission, cost-effective community/transit shuttle bus of the future. The U.S. Department of Energy’s Idaho National Engineering and Environmental Laboratory is working with the departments of Interior and Transportation, as well as private industry, to roll out the “new” yellow bus. While this modernized version of the traditional yellow bus retains the conventional feel of the older model park vehicles, the new version is a 16- to 32-passenger vehicle that uses alternative fuel, features a low floor and complies with the Americans with Disabilities Act (ADA). Expectations are that the vehicle eventually will be manufactured with several optional engines, using alternative fuels like natural gas, propane, ethanol and biodiesel. One purpose of the collaborative effort is protection of the national parks’ pristine environment, combined with a drive to increase national security by reducing dependence on foreign sources of energy.

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