Analyst publishes on link between energy avalability and recessions

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Tall
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Analyst publishes on link between energy avalability and recessions

It is nice to see this published in a peer-reviewed journal.  An analyst who gets it!  The author also proposes a new way to calculate and assess EROEI.

ScienceDaily (Dec. 2, 2010) — An overlooked cause of the economic recession in the U.S. is a decade long decline in the quality of the nation's energy supply, often measured as the amount of energy we get out for a given energy input, says energy expert Carey King of The University of Texas at Austin.

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 From coverage on Science Daily: http://www.sciencedaily.com/releases/2010/11/101130103617.htm

 

Energy intensity ratios as net energy measures of United States energy production and expenditures

Abstract:  In this letter I compare two measures of energy quality, energy return on energy invested (EROI) and energy intensity ratio (EIR) for the fossil fuel consumption and production of the United States. All other characteristics being equal, a fuel or energy system with a higher EROI or EIR is of better quality because more energy is provided to society. I define and calculate the EIR for oil, natural gas, coal, and electricity as measures of the energy intensity (units of energy divided by money) of the energy resource relative to the energy intensity of the overall economy. EIR measures based upon various unit prices for energy (e.g.  $/Btu of a barrel of oil) as well as total expenditures on energy supplies (e.g. total dollars spent on petroleum) indicate net energy at different points in the supply chain of the overall energy system. The results indicate that EIR is an easily calculated and effective proxy for EROI for US oil, gas, coal, and electricity. The EIR correlates well with previous EROI calculations, but adds additional information on energy resource quality within the supply chain. Furthermore, the EIR and EROI of oil and gas as well as coal were all in decline for two time periods within the last 40 years, and both time periods preceded economic recessions.

Full .pdf of article: http://iopscience.iop.org/1748-9326/5/4/044006/pdf/1748-9326_5_4_044006.pdf

 Citation: C. W. King. Energy intensity ratios as net energy measures of United States energy production and expenditures. Environmental Research Letters, 2010; 5 (4): 044006 DOI: 10.1088/1748-9326/5/4/044006

 

 

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