Education Resources

University of Florida: Lectures and Other Resources

A series of lectures on Energy Systems Theory, Emergy and other topics by Dr. Mark Brown of the University of Florida Center for Environmental Policy can be found at the following URL:


The following lectures are available for download:

Lecture 1: Systems Diagramming

Lecture 2: Energy

Lecture 3: Introduction to Emergy

Lecture 4: Global Emergy

Lecture 5: Materials & Emergy

Lecture 6: Dynamic Emergy

Lecture 7: Order & Disorder

Lecture 8: Information

Lecture 9: Environmental Impact Assessment

Lecture 10: Emergy Evaluation of Environmental Alternatives

Lecture 11: Emergy & Urban Systems

Lecture 12: The Future of the Future


Other resources available from the Resources Section of are templates for performing emergy evaluation (emergy evaluation includes both analysis and synthesis), simulation models in several formats and the energy systems symbols with example models.

USEPA: Emergy Short Course and Other Resources

Some educational materials on emergy are posted on the worldwide web in the USEPA web archives. Materials located at are found within the link labeled “Emergy Short Course”. Inside this link you will  find:

1) The “EmergyAED Short Course” on performing emergy evaluation of states in the United States written by Sherry Brandt-Williams and Dan Campbell

2) A lecture titled “Emergy in 60 Minutes”  originally written by Sherry Brandt-Williams and later revised by Dan Campbell

3) A paper introducing emergy evaluation in its many aspects entitled “Emergy Evaluation” written by H.T. Odum and

4) An EPA Environmental Research Brief titled “Emergy and Its Importance” by Dan Campbell.

1) The Emergy Short Course provides a curriculum for a two week short course on emergy and systems concepts. This course was created largely through the efforts of Sherry Brandt-Williams, EPA Post-Doctoral Fellow, 2002-2005, in collaboration with Dan Campbell, Research Ecologist at USEPA, ORD, NHEERL, AED, MAB.

Sessions in the Course and Materials:

Session 1: Introduction to Emergy and Systems Ecology

Session 2: Introduction to Systems Diagrams

Session 3: Introduction to Emergy

Session 4: Emergy Evaluations: Thailand, Ecuador, and Tax Credit

Session 5: Emergy and Economics

Session 6: Evaluating Tangibles

Folio 1: Introduction and Global Budget

Folio 2: Emergy of Global Process

Folio 3: Emergy of Ecosystems

Folio 4: Emergy of Florida Agriculture

Session 7: Evaluating Information

Session 8: Ratios and Interpretations

Session 9: Scale and Boundary Definitions

Session 10: Emergy Applications

Caveat: Transformities and energy data used in this course are from historical studies and do not represent consistent values to use in new studies.

2) In addition to the slide show posted on the EPA website, “Emergy in 60 Minutes” has been used as the basis for an informative docu-lecture created by Gregory Möller, Ph.D. Professor of Environmental Chemistry and Toxicology at the University of Idaho. The docu-lecture can be found at

3). “Emergy Evaluation” is one of H.T. Odum’s last attempts to introduce emergy to a general audience. The content of the paper is described in the abstract:

“After reviewing the concepts of energy hierarchy and scale, emergy terms are defined including transformity, emergy storage, empower, mass emergy, empower density, work and emdollars. Emergy is related to spatial centers and to pulsing with time. Evaluations include macroeconomics of states and nations and the economic-environmental interface of microeconomics. Emergy indices are used to evaluate alternatives for primary energy sources, environmental impacts, and international exchange. Maximizing empower is a policy criterion for selecting alternatives that maximize production and use of real wealth. Systems diagrams help clarify emergy evaluation for some of the many different ways and scales the human mind aggregates and simplifies the networks of society and environment. An example is included of emergy evaluation in a lawsuit.”

4) “Emergy and Its Importance” is a two page article that was written with the purpose of explaining emergy and its importance using plain language that everyone can understand.


Energy Systems Theory and Emergy Topics Presented on the Prosperous Way Down Website

The website,,  created by Mary Odum  concentrates on the proposition that over time we (society) can change our ways enough to gradually reduce our energy use to fit the predicted reduction in available resources. It supports lively discussions on what we can do to fit the patterns of today and tomorrow.

Many educational topics related to Energy Systems Theory and  emergy research are presented on this site. The lectures presented are not only interesting, but retain the unique perspective of HT. Odum on these subjects through incorporatng direct quotes from his books and papers.

See also, the book , A Prosperous Way Down, by Howard T. Odum and Elisabeth C. Odum, was published in 2001 by University Press of Colorado, 5589 Arapahoe Ave. Suite 206C, Boulder, Col. 80303.