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The DOE Science News Source is a Newswise initiative to promote research news from the Office of Science of the DOE to the public and news media.
  • 2016-05-09 15:05:10
  • Article ID: 653248

Argonne Rolls Out New Version of Alternative Fuels and Advanced Vehicles Analysis Tool

  • Credit: Texas Railway Commission

    A school bus is fueled with propane in Alvin, Texas as part of an AFLEET case study.

Argonne rolls out new version of alternative fuels and advanced vehicles analysis tool

A rising number of options for alternative fuels, such as natural gas, and advanced vehicles, like electric vehicles, are offering consumers more ways to shrink their environmental “tire tracks,” so to speak. Despite the potential benefits, being one of the first businesses or individuals to embrace a new product or technology can be daunting. That’s why the U.S. Department of Energy (DOE’s) Argonne National Laboratory this week is releasing an updated version of its AFLEET tool to reflect the latest advances in alternative fuels and advanced vehicle technologies and updated emissions data.

Sponsored by the DOE Clean Cities program, AFLEET stands for the Alternative Fuel Life-Cycle Environmental and Economic Transportation Tool. The free, publicly-available tool provides users with a roadmap for assessing which types of vehicles and fuels are right for them. The 2016 AFLEET Tool and user guide are available online. Although anyone can download and use the tool, AFLEET was designed for managers that purchase and maintain a fleet of vehicles.

The latest version includes, for the first time: gaseous hydrogen fuel cell vehicles, state-based (rather than national-based) fuel pricing, private station fuel pricing and fueling infrastructure costs. Updates to existing inputs include new light-duty vehicle costs; vehicle air pollutant emission factors derived from the Environmental Protection Agency’s emissions modeling system, MOVES 2014a; and petroleum use and greenhouse gas and relative air pollutant emissions from the 2015 GREET model, Argonne’s leading fuel life-cycle analysis model that is now in its twentieth year.

The Clean Cities program aims to support local actions to reduce petroleum use in transportation. There are nearly 100 coalitions of stakeholders, including state and local government agencies, businesses, fuel providers and community organizations. Also, the Clean Cities program develops public resources to inform consumers on the environmental and cost benefits of a range of fuels and vehicles that cut down on petroleum use, and AFLEET is an important resource for this effort.

The Clean Cities program is responsible for displacing 7.5 billion gallons of petroleum over the last 23 years. Since its initial release in 2013, AFLEET has been downloaded more than 5,000 times, expanding its influence beyond the Clean Cities coalitions.

“There really isn’t a tool out there to look at alternative fuels and advanced vehicles in this way,” said Andrew Burnham, Argonne principal environmental scientist. “We’re bringing the unique expertise Argonne has in vehicle and fuel life-cycle analysis to provide environmental information like petroleum use and greenhouse gas and air pollutant emissions, as well as cost analysis, so users have as much information as possible.”

In case studies conducted by AFLEET developers, the tool has evaluated the environmental benefits of vehicles under a range of circumstances — from fleets of Chicago-based, propane-operated bakery delivery trucks, to propane-fueled school buses in Texas and Virginia, to refuse trucks running on compressed natural gas in Milwaukee, Chicago and Boise, Idaho. In each of the propane-operated vehicle case studies, use of propane displaced well over a thousand gallons of diesel fuel per vehicle annually on average, reducing greenhouse gas emissions by several tons per vehicle annually. Case study results on compressed natural gas-operated refuse trucks showed even higher averaged gallons of displaced diesel, at more than 7,000 gallons per vehicle annually and reduced greenhouse gas emissions at about 25 tons per vehicle annually.

The Clean Cities program and the AFLEET tool are sponsored by the DOE’s Office of Energy Efficiency and Renewable Energy.

Argonne National Laboratory seeks solutions to pressing national problems in science and technology. The nation's first national laboratory, Argonne conducts leading-edge basic and applied scientific research in virtually every scientific discipline. Argonne researchers work closely with researchers from hundreds of companies, universities, and federal, state and municipal agencies to help them solve their specific problems, advance America's scientific leadership and prepare the nation for a better future. With employees from more than 60 nations, Argonne is managed by UChicago Argonne, LLC for the U.S. Department of Energy's Office of Science.

The Department of Energy’s Office of Energy Efficiency and Renewable Energy (EERE) accelerates development and facilitates deployment of energy efficiency and renewable energy technologies and market-based solutions that strengthen U.S. energy security, environmental quality, and economic vitality. For more information, visit the Office of Energy Efficiency and Renewable Energy website.

The U.S. Department of Energy's Office of Science is the single largest supporter of basic research in the physical sciences in the United States and is working to address some of the most pressing challenges of our time. For more information, visit the Office of Science website.

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