WASHINGTON – The GREET Fleet Footprint Calculator, developed by Argonne to measure the petroleum displacement and greenhouse gas (GHG) emissions of medium- and heavy-duty vehicles and off-road equipment, has been updated and is now available online.  

The basis of this calculator is Argonne's Greenhouse gases, RegulatedEmissions, and Energy use in Transportation (GREET) fuel-cycle model, which is used to generate necessary petroleum use and GHG emission co-efficients of key fuel production pathways and combustion fuel types. Users can compare different alternative fuels and vehicle technologies to help with future purchases by entering the number of vehicles, mileage, and fuel economy.

Version 2012 of the GREET Fleet Footprint Calculator is available at this link: http://greet.es.anl.gov/fleet_footprint_calculator.

This version contains data from the recent release of the GREET 2012 model, which updated the well-to-wheel results for a variety of fuels including corn and cellulosic ethanol, biodiesel, electricity and petroleum-based fuels. In addition, this tool now allows users to examine algae-based biodiesel and compare conventional natural gas to shale gas. The calculations for off-road equipment have also been improved allowing users to easily change the load factor for each type of equipment.