January 26, 2017
GREET 2016 Revision 1 Release
Minor revisions were made to the GREET 2016 model since its release in October 2016. The description of these revisions is available at (379Kb pdf)
October 7, 2016
GREET 2016 Release
The Argonne National Laboratory’s Systems Assessment Group is pleased to announce the 2016 release of the suite
of GREET models and associated documentation. This release includes the following expansions and updates:
I. Major Expansions and Updates:
- Updated water consumption factors for the refining processes of petroleum fuels, thermoelectric and hydroelectric power generation, and hydrogen production processes.
- Updated high-octane-fuel (HOF, with research octane number of 100) pathways in GREET with E10, E25, and E40 ethanol blends.
- Developed new pathways for hydrogen production from dark fermentation of lignocellulosic biomass, high temperature steam electrolysis, and reforming of bio-derived liquids.
- Expanded and updated wastewater sludge-derived fuels and waste-to-energy pathways.
- Updated CCLUB to include N2O emissions associated with LUC GHG emissions for ethanol production scenarios.
- Updated emission factors for agricultural equipment and nonroad emissions.
- Updated DME production from fossil natural gas, natural gas-derived methanol, and renewable feedstocks.
- Updated the fuel economy and material composition of the light duty vehicles.
- Added bio-based ethanol-to-jet pathways from corn and cellulosic biomass, and sugar-to-jet from cellulosic biomass.
- Updated energy intensity and emissions for freight and intercity passenger rail transportation.
- Developed in GREET.net emissions within various regional aggregations of the United States, including regionalization at the state, eGrid subregion, NERC levels.
II. Other Updates:
- Updated methane leakage emissions for natural gas pathways.
- Updated vented, fugitive, and flaring greenhouse gas emissions from crude oil production.
- Updated fugitive CH4 emissions from open channel transportation of vinasse for Brazilian sugarcane ethanol pathway.
- Updated U.S. electricity generation mix based on Energy Information Administration (EIA)’s Annual Energy Outlook (AEO) 2016.
- Updated U.S. crude oil mix and weighted average distance using EIA’s company level imports data and AEO and Canadian Association of Petroleum Producers’ market report.
- Updated farming energy and fertilizer intensity of corn, soybean, willow, poplar, miscanthus, and switchgrass.
- Added LiNCA battery for battery electric vehicles into GREET2, including the NCA cathode production, Aluminum hydroxide and alumina sulfate production.
For more information on these updates, please use the following link: (1.06Mb pdf)
Oct 25, 2013
We are pleased to announce the release of the newly developed AFLEET Tool. This tool has been designed 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.
For more information and to download the software, check out the AFLEET Tool