ENERGY RETURNS ON INVESTMENT (EROI): STUDIES ON COAL, BIOETHANOL, URANIUM (NUCLEAR), AND ONSHORE WIND
Course Title: RE51001 Foundation in Renewable Energy
The term energy return on investment (EROI), or equivalently return on energy investment refers to assessments of the net energy obtained from fuel sources taking account of the energy expended in production, transportation, refining and so on. Results are usually expressed as ratios, so for example a ratio of 10:1 implies that for every kWh of energy expended delivering a workable fuel, 10kWh of energy output can be delivered. The derived EROI values for a particular fuel or generation technology may be very variable across different studies, depending on the methodologies adopted and assumptions made.
Perform a library search of EROI and compare results from at least four separate studies for coal, uranium, bio-ethanol and onshore wind. Discuss your findings in terms of methodologies employed, uncertainty ranges for the data with details of calculations, and any perceived bias in the motivation for the research, noting the most sustainable of all
Note: It may not be possible to find 4 studies each covering all of the fuels/technologies required above. You may use as many studies as necessary to generate a 4×4 matrix of EROI information i.e. you will need to uncover a minimum of 4 EROI studies, and a maximum of 16.
Further note that we would start (introduction) with a brief explanation of what EROI from the COAL 2 and murphew PAPERs I would attache in an email, if you have better sources or you have done it in the past, I am open to the idea. Then we narrow than to the various fuels for the assignment which must be coal (not oil, gas or fossil fuel), uranium (nuclear), bioethanol, onshore wind (not off shore wind) which i would better explain in a separate email. Then it has to be 4 studies on each.discussions would be on the