This report, based on a July 2014 workshop, updates conventional wisdom on available technologies that offer the potential to increase tractor-trailer efficiency in the 2015-2030 timeframe.
The workshop “Emerging Technologies for Heavy-Duty Vehicle Fuel Efficiency” was convened by the American Council for an Energy-Efficient Economy (ACEEE) and the International Council on Clean Transportation (ICCT). The workshop brought together expert manufacturer, supplier, fleet, government, and non-profit organization stakeholders for a technical exchange on heavy-duty tractor-trailer efficiency, and this report summarizes key points from that workshop.
The exchange revealed that, although there are many emerging efficiency technologies with great potential, the uptake of the technologies in the market is uneven. The findings indicate that, going beyond the Phase I U.S. regulatory requirements, it would be feasible to reduce tractor-trailer fuel consumption by as much as 15% from advanced engine technology, 8% from integrated engine-transmission approaches with downspeeding, and 10-15% from trailer technologies.
The report also details a number of recommendations made by workshop participants concerning how regulation could better promote the available efficiency technologies.