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EBAMM v1.1
ERG Biofuel Analysis Meta-Model
The ERG Biofuel Analysis Meta-Model (EBAMM) was developed by students and faculty of the
Energy and Resources Group and
Richard & Rhoda Goldman School of Public Policy at UC Berkeley to
review the current state of biofuel energy analyses.
The paper was published in
Science on January 27, 2006 and
is available here. Use the links below to download the paper, the spreadsheet model,
and the supplemental materials.
- Summary of Results
- Download the paper (175 KB)
- Download the model (version 1.1) (1.0 MB)
Contains energy and greenhouse gas (GHG) analyses of all papers reviewed, plus
summary sheets facilitating comparison between studies. (Released June 11, 2006)
Requires Microsoft Excel or work-alike.
- Download the Supplemental Online Materials (version 1.1.1) (1.2 MB)
Contains a detailed model description and a summary of errors and
omissions found in the studies reviewed. Version 1.1 of the Supplemental
Materials is based on the peer-reviewed 1.0 version, with several new sections added.
Changes are clearly identified. (Released July 13, 2006)
Requires PDF file viewer.
- Download a zipped archive of version 1.1 (1.4 MB)
Contains both the model and the supplemental materials. Version 1.1 of the Supplemental
Materials is based on the peer-reviewed 1.0 version, with several new sections added.
Changes are clearly identified. (Released June 11, 2006)
- Download a zipped archive of version 1.0 (1.0 MB)
Contains the original model and the peer-reviewed supplemental materials available
on the Science website. (Released January 27, 2006)
- Download letters to Science
regarding the January 27 paper, and our response to those letters. (Published June 23, 2006)
The following files provide supporting data for our response in Science to a letter
questioning the lime application rate in EBAMM.
The following studies were reviewed:
- Fossil Energy
Use in the Manufacture of Corn Ethanol
by Dr. Michael S. Graboski, Colorado School of Mines, Prepared for the
National Corn Growers Association (2002).
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The Energy
Balance of Corn Ethanol: An Update
Hosein Shapouri, James A. Duffield, and Michael Wang, U.S. Department of Agriculture,
Agricultural Economic Report No. 814 (2002).
- The 2001
Net Energy Balance of Corn Ethanol
Shapouri, H., Duffield, J., Mcaloon, A.J. Proceedings Of The Conference On Agriculture
As A Producer And Consumer Of Energy, Arlington, VA (2004).
- The Greenhouse Gases,
Regulated Emissions, and Energy Use in Transportation (GREET) Model, version 1.6
Michael Wang, Transportation Technology R&D Center, Argonne National Laboratory.
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Thermodynamics of
the Corn-Ethanol Biofuel Cycle
Patzek, T.W., Critical Reviews in Plant Sciences 23(6), 519-567 (2004).
- Ethanol as Fuel:
Energy, Carbon Dioxide Balances, and Ecological Footprint
Marcelo E. Dias de Oliveira, Burton E. Vaughan, and Edward J. Rykiel, Jr. BioScience, 55(7), 593 (2005).
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Ethanol Production Using
Corn, Switchgrass, and Wood; Biodiesel Production Using Soybean and Sunflower
David Pimentel and Tad W. Patzek, Natural Resource Research, 14(1), 65-76 (2005).
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