Today’s fleets are increasingly interested in medium- and heavy-duty vehicles that use alternative fuels or advanced technologies that can help reduce operating costs, meet emissions requirements, improve fleet sustainability, and support U.S. energy independence. Vehicle and engine manufacturers are responding to this interest with a wide range of options across a steadily growing number of vehicle applications.
This guide provides an overview of alternative fuel power systems-including engines, microturbines, and fuel cells- and hybrid propulsion systems. The guide also offers a brief overview of individual medium- and heavy-duty vehicles, listed by application. Notably, a transition to any alternative fuel or advanced technology is a long-term commitment that merits thoughtful research and planning, with attention to technical, economic, and geographical considerations. Clean Cities’ Alternative Fuels Data Center (AFDC) offers a suite of tools that can aid a fleet in its analysis.
Clean Cities collects the vehicle information presented in this guide from multiple sources, including original equipment manufacturers (OEMs), conversion companies, and product literature. Diligent effort was made to contact all manufacturers that offer commercially available vehicles with alternative fuel or advanced technology options. Manufacturers are also invited to send comments, additions, or corrections related to any information contained in the guide by contacting the AFDC webmaster at afdc.energy.gov/progs/webmaster.php. The AFDC’s online heavy-duty vehicle database reflects product changes made or identified after publication.
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