This is Argonne National Laboratory’s R&D version of GREET.
For GREET versions used for determining tax credits, please click here.
A brief introduction to R&D GREET can be found here.

Alternative Fuel Life-Cycle Environmental and Economic Transportation (AFLEET) Tool


AFLEET Tool
Download tool and documentation
January 27, 2024
AFLEET Tool 2024

We are pleased to announce a new release of the AFLEET Tool. This release includes the following updates:

  • Added Rail Footprint Calculator to estimate petroleum use, GHGs, and air pollutant emissions of existing and new locomotives
  • Added Marine Footprint Calculator to estimate petroleum use, GHGs, and air pollutant emissions of existing and new marine vessels
  • Updated vehicle emission factors from EPA’s MOVES5
  • Updated results to match GREET 1 2024 and GREET 2 2024
  • Updated fuel prices from Clean Cities Alternative Fuel Price Reports

For more information on AFLEET 2024 updates, please use the following link: AFLEET Tool Version History.pdf
January 31, 2018
Heavy-Duty Vehicle Emissions Calculator (HDVEC)

HDVEC is an online calculator based on the AFLEET Tool to aid fleets and decision makers compare vehicle technologies for NOx, PM, and GHG emission reductions and consider allocation of funding for environmental mitigation projects. HDVEC can be found at https://afleet.esia.anl.gov/hdv-emissions-calculator.

October 28, 2013
What is AFLEET Tool?

The Department of Energy's Clean Cities Program has enlisted the expertise of Argonne to develop a tool to examine both the environmental and economic costs and benefits of alternative fuel and advanced vehicles. Argonne has developed the Alternative Fuel Life-Cycle Environmental and Economic Transportation (AFLEET) Tool for Clean Cities stakeholders to estimate petroleum use, greenhouse gas emissions, air pollutant emissions, and cost of ownership of light-duty and heavy-duty vehicles using simple spreadsheet inputs.

The tool uses data from Argonne's R&D Greenhouse gases, Regulated Emissions, and Energy use in Technologies (GREET) fuel-cycle model to generate necessary well-to-wheels petroleum use and GHG emission co-efficients for key fuel production pathways and vehicle types. In addition, Environmental Protection Agency's MOtor Vehicle Emission Simulator (MOVES) and certification data are used to estimate tailpipe air pollutant emissions. Various sources are used to provide default cost data, including the Clean Cities Alternative Fuel Price Report and American Recovery and Reinvestment Act awards.

Previous Versions