### The Greenhouse Gases, Regulated Emissions, and Energ y Use in Transportation Model

Oct 3, 2014

Oct 3, 2014 

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## GREET Model

GREET News GREET.net 2014 The latest major update was developed in order to be more robust and flexible. The major additions to the GREET 2014 version are: • Updated pathway structure to allow more complex and detailed pathways • Updated processes to allow multiple input and multiple outputs, each allocated output can be used downstream • Updated vehicle results to allow multiple functional units • Incorporated charting tool • Incorporated CCLUB with two new feedstocks (poplar and willow), new organic carbon emission factors for soil depth of 100 cm, and new land-use change results • Incorporated marine vessel module • Added water consumptions for the major pathways as an additional life-cycle analysis metric • Added black carbon and organic carbon emissions as an a dditional criteria air pollutants (CAP) and GHG species • Updated refining efficiency and greenhouse gas (GHG) e mission intensity of petroleum products • Expanded oil sands modeling with more detailed and refined operation data • Updated methane emission for natural gas pathways as w ell as petroleum venting, fugitive and flaring emissions • Updated soybean and biodiesel production assumptions • Added pretreatment pathways including dilute acid pre treatment and ammonia fiber expansion • Added conventional and bio-product pathways • Added catalyst production pathways • Updated enzyme and yeast assumptions • Updated global warming potential (GWP) • Other updates are in progress and notification will be provided when these updates become available. Download GREET.net from the GREET.net website
GREET 1 2014 The GREET team at Argonne National Laboratory is plea sed to announce a new release of the GREET fuel cycle model. This release includes the following updates: • Updated refining efficiency and greenhouse gas (GHG) e mission intensity of petroleum products. • Expanded oil sands modeling with more detailed and refined operation data. • Added water consumptions for the major pathways as an additional life-cycle analysis metric. • Added black carbon and organic carbon emissions as an a dditional criteria air pollutants (CAP) and GHG species. • Added contribution of oil and gas infrastructure to greenhouse gas emissions for crude and natural gas production and processing. • Added rail module as an additional transportation ap plication. • Added heavy duty vehicle (HDV) module as an additional transportation application. • Updated stationary combustion emission factors. • Added conventional and bio product pathways. • Added pretreatment pathways including dilute acid pre treatment and ammonia fiber expansion. • Added catalyst production pathways. • Added a corn ethanol production process with corn oil ex traction and integrated corn/corn stover ethanol production processes. • Updated methane emission for natural gas pathways as w ell as petroleum venting, fugitive and flaring emissions. • Updated global warming potential (GWP) and added g lobal temperature potential (GTP) based on IPCC 2013 AR5 report. • Updated soybean and biodiesel production assumptions. • Updated cellulosic ethanol production assumptions based on SOT 2013. • Updated CCLUB with two new feedstocks (poplar and will ow), new organic carbon emission factors for soil depth of 100 cm, and new land-use change results. • Added ethanol-to-jet pathways. • Updated enzyme and yeast assumptions. • Added Gas/Biomass-To-Liquid (GBTL) pathways and updat ed Gas-To-Liquid (GTL) pathways. • Added a summary of the 3-season results for the algae hyd rothermal liquefaction pathway. • Updated the CO2 emission factor from limestone appli cation. For more details on updates in GREET 1 2014, please download and read the following document: 

# Page 1 of 3 Argonne GREET Model

6/25/2015 https://greet.es.anl.gov/Oct 25, 2013

October 3, 2014

October 3, 2014

September 3, 2010 • Summary of Revisions of the GREET 1 2014 ( 262 kB pdf) • Download GREET 1 2014 from the GREET 1 Series page
AFLEET Tool We are pleased to announce the release of the newly de veloped AFLEET Tool. This tool has been designed for Clean Cities stakeholders to estimate petroleum use, gre enhouse gas emissions, air pollutant emissions, and cost of ownership of light-duty and heavy-duty vehicles using si mple spreadsheet inputs. For more information and to download the software, check out the AFLEET Tool page. GREET 2 2014 • Added six new vehicles for both baseline and lightweigt ing models, with different material compositions. • Updated carbon fiber and Magnesium production assumpt ions. • Added additional cathode materials and composition da ta for Li-ion batteries. For more details on updates in GREET 2 2014, please download and read the following document: • Summary of Expansions and Revisions of the GREET 2 2014 ( 207 kB pdf) • Download GREET 2 2014 from the GREET 2 Series page



### How Does GREET Work? The GREET model


### To fully evaluate energy and emission impacts of advanced veh icle technologies and new transportation fuels, the fuel cycle from wells to wheel s and the vehicle cycle through material recovery and vehicle disposal need to be considered. Sponsored by the U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy (EERE), Argonne has developed a full life-cycle model called GREET (Greenhouse gases, Regulated Emissions, and Energy use in Transportation). It allows researchers and analysts to evaluate various vehicle and fu el combinations on a full fuel-cycle/vehiclecycle basis. The first version of GREET was released in 1996. Since th en, Argonne has continued to update and expand the model. The most recent GREET versions are the GREET 1 2014 version for fuel-cycle analysis and GREET 2 2014 version for vehicle-cycle analysis. GREET was developed as a multidimensional spreadsheet mo del in Microsoft Excel. This public domain model is available free of charge for anyone to use.

For a given vehicle and fuel system, GREET separately calc ulates the following: • Consumption of total resources (energy in non-renewabl e and renewable sources), fossil fuels (petroleum, natural gas, and coal together), petroleum, coal, nat ural gas and water. • Emissions of CO2-equivalent greenhouse gases - primarily carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O). • Emissions of seven criteria pollutants: volatile organic co mpounds (VOCs), carbon monoxide (CO), nitrogen oxide (NOx), particulate matter with size smaller than 10 micron (PM10), particulate matter with size smaller than 2.5 micron (PM2.5), black carbon (BC), and sulfur oxides (SOx). Fuel Pathways GREET includes more than 100 fuel pathways including petroleum fuels, natural gas fuels, biofuels, hydrogen and electricity produced from various energy feedstock sources 

# Page 2 of 3 Argonne GREET Model

6/25/2015 https://greet.es.anl.gov/September 3, 2010 Vehicle Technologies GREET simulates the following three vehicle classes: : • Passenger cars • Light Duty Truck 1 ( gross weight < 6000 lb) • Light Duty Truck 2 ( gross weight < 8500 lb) GREET includes more than 80 vehicle/fuel systems covering the following vehicle technologies: • Conventional spark-ignition engine vehicles • Spark-Ignition, Direct-Injection Engine Vehicles • Compression-Ignition, Direct-Injection Engine Vehicles • Hybrid electric vehicles ◦ Spark-ignition engines ◦ Compression-ignition engines • Plug-in hybrid electric vehicles ◦ Spark-ignition engines ◦ Compression-ignition engines • Battery-powered electric vehicles • Fuel-cell vehicles
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# Page 3 of 3 Argonne GREET Model

6/25/2015 https://greet.es.anl.gov/