International Society for the Advancement of Emergy Research

The Emergy Society
Welcome to the Emergy Society Web Site!

We are an international society dedicated to the
advancement of research on emergy and transformity
as a means to accomplish better decision-making in a
complex world. This work is accomplished within the
framework of Energy Systems Theory (Odum 1994).

Our goal is to support research and communication  
that will increase the quantity and improve the quality of
emergy research throughout the world.

You can explore our website to learn more about
emergy, H.T. Odum, and our organization.

join ISAER, if you are interested in
accomplishing our goal
Odum, H.T. 1994. Ecological and General Systems. University Press
of Colorado, Niwot, CO. 644. p.
The Emergy Society's Logo

Please, go to the Logo page to see the Emergy
Society's Logo developed by the Logo Committee in
collaboration with Lux Design of San Francisco, CA.
Logo designs from the ISAER Logo contest are also
shown and we will use them in an artistic context to
support our mission.
Images from the 7th Biennial
Emergy Research Conference
Party at the Odum House
Photographs by Sam Hopkins
Emergy Society Home Page
Access to the Emergy Society Database

The Emergy Society Database of transformities and
other unit emergy values is administered by Brandon K.
Winfrey and it is currently open for use by all Emergy
Society members and other interested parties.

Please follow these steps to register.

1) Go to  
2) Click the "Create new account" link on the left sidebar
3) Fill out a user name and password that you will use
to sign into the website.
4) Provide an email where you can be reached so your
account can be verified.
5) Be patient. Currently, user accounts are approved
manually by the administrator.
Please Pay Your 2015 Dues

At the 5th Annual Meeting of ISAER, we approved raising the
dues for full membership to $50.00. Student membership remains
at $10.00. You can now pay dues for two years at one time. A
reduced rate membership of $25.00 is available as appropriate
based on the member's financial conditions.

We met our goal of raising $4000 to support travel of five people
to the Emergy Synthesis 8 conference. Thanks to four donors.

Please pay your dues through setting-up a Pay Pal account or
with a credit card by going to the
dues and donations page on
this web site and  clicking on the link provided.
A Prosperous Way Down Website and Blog

“A Prosperous Way Down” is a proposition that we can change our ways enough to gradually reduce our energy
use to fit the reduction of our resources.

The website,, created by Mary Odum Logan concentrates on this proposition. It supports
lively discussions on what we can do to fit the patterns of today and tomorrow.

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.

A paper by Betty Odum summaries much of the book. The paper will be presented at a workshop at the Friends
General Conference, held at the University of Rhode Island July 1 - 7,  2012. You can download the paper by
following this link to
Betty's paper.

Here is a link to a Report on the first Prosperous Way Down Workshop
Posted by Enrique Ortega 09/24/12
The host and venue for the World Summit - Emergy Analysis for Designing a Prosperous and Sustainable
has been chosen. The International Conference Organizing committee, chaired by Murray Patterson
delivered its evaluation of the proposals received with a recommendation to the ISAER Executive Council. A motion
to approve holding the ISAER International Conference in Beijing in the summer of 2016 was accepted at the July
2014 meeting of the ISAER Executive Council, thereby accepting the proposal of the School of the Environment,
Beijing Normal University University. Please go to the
Accepted Proposal to see the details. More work will be done
on the confernce design in the near future.
The ISAER Monthly Newsletter

Coordinated by Enrique Ortega, President of the
International Society for the Advancement of Emergy
We are requesting that newsletters be sent to us from
Emergy Research groups around the world.
Newsletters from the
UNICAMP (University of Campinas)
group in Campinas, Brazil and the
Ecosystem Engineering
Design Lab
at the University of Maryland, USA are now
posted. To read them follow the link to the complete
newsletters found on the
In the News page. Also, directions
for sending Enrique a newsletter from your group are given
on the "In the News" page.
Report on the Eighth Annual Meeting of ISAER

The revised By-laws were approved by a vote of 30 to 1 with
12.7% of the members voting. The new Executive Council has
been elected, please, go to the Members' Area
ElectionResults2015 to see the winners.  Also, please go to the
Presidential Address
page and read new President Yan
Maochao's closing address to the Society defines the
priorities during his presidency.
              Short Course on Emergy taught in Venice, Italy a Success!

Dr. Mark Brown taught a short course in emergy theory and methods at the 2nd International School on
Emergy Accounting, Venice, Italy, 11-15 May 2015. The directirs of the School of Emergy Accounting are
Francesco Gonella - Ca' Foscari University, Venice, Italy and Sergio Ulgiati - Parthenope University, Naples,
Italy. We are waiting for a full report on the Course held in May of this year.
This site has not been maintained for the past 6 months as a consequence of the hand-off of Yahoo Small Business
to the new small business management company Aabaco.  Compatibility of the new Aabaco system with Yahoo
SiteBuilder has been restored and so this site will have new material posted as of June 2, 2016.

Please, note that all material on this site has been reproduced on our new web site at
along with some new material. The new site is now our primary site.

The biennial emergy research conference, Emergy Synthesis 9 was held at the University of Florida in Gainesville
FL, USA from Janaury 7 to 9, 2016. The conference was a one of the best ever in the words of Dr. Mark Brown.

The Second ISAER-sponsored International Conference to be held in 2016 and the first outside of Gainesville FL,
USA will be the first "World Summit on Environmental Accounting" to be held at Beijing Normal University, Beijing,
P.R. China from July 4 to 6, 2016. Beijing Normal University will be the host institution and Dr Zhifeng Yang the
Program Chair. This meeting will be co-sponsored by ISAER China Chapter and ISAER.

In addition,  ISAER members contributed a session to the International Society for Ecological Modelling conference,
which was held from May 8 to 12, 2016 at Towson University, Maryland USA.

EcoSummit 2016 will be held at Le Corum in Montpellier, France from August 29 to September 1, 2016. ISAER
members Aurelie Wilfart and Oliver Le Corre will organize an ISAER sponsored session for EcoSummit 2016 entitled
"Emergy assessment of sustainability: How emergy accounting can help agro-ecosystems to address the needs of

ISAER plans to host a display table containing some of our materials manned by members to answer questions
about the Emergy Society. The details are currently being worked out.