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Sustainability 2011, 3(10), 1888-1907;

Order from Chaos: A Preliminary Protocol for Determining the EROI of Fuels

Department of Geography and the Institute for the Study of the Environment, Sustainability, and Energy, Northern Illinois University, Dekalb, IL 60115, USA
Department of Environmental and Forest Biology and the Program in Environmental Science, College of Environmental Science and Forestry, Syracuse, NY 13210, USA
Global Climate and Energy Project (GCEP), Stanford University, Palo Alto, CA 94305, USA
Geography and Environment, Boston University, Boston MA 02215, USA
Author to whom correspondence should be addressed.
Received: 28 July 2011 / Revised: 1 August 2011 / Accepted: 5 August 2011 / Published: 17 October 2011
(This article belongs to the Special Issue New Studies in EROI (Energy Return on Investment))
PDF [390 KB, uploaded 24 February 2015]


The main objective of this manuscript is to provide a formal methodology, structure, and nomenclature for EROI analysis that is both consistent, so that all EROI numbers across various processes can be compared, and also flexible, so that changes or additions to the universal formula can focus analyses on specific areas of concern. To accomplish this objective we address four areas that are of particular interest within EROI analysis: (1) boundaries of the system under analysis, (2) energy quality corrections, (3) energy-economic conversions, and (4) alternative EROI statistics. Lastly, we present step-by-step instructions outlining how to perform an EROI analysis. View Full-Text
Keywords: energy; EROI; protocol; boundaries; energy quality; economics energy; EROI; protocol; boundaries; energy quality; economics
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Murphy, D.J.; Hall, C.A.; Dale, M.; Cleveland, C. Order from Chaos: A Preliminary Protocol for Determining the EROI of Fuels. Sustainability 2011, 3, 1888-1907.

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