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Category Archives: EROEI Energy Returned on Energy Invested
Implications of declining EROI on oil production 2013 by David J. Murphy
[ To “see” declining EROI and the end of cheap energy, check out these photos of The Tallest structure ever moved by Mankind, a Norwegian natural gas offshore platform ] Murphy, David J. December 2, 2013. The implications of the … Continue reading
Critique of LCA & EROI Wind research
[This paper criticizes LCA and EROI wind studies] Notes from 22 page: Davidsson, S., Höök, M., Wall, G. 2012. A review of life cycle assessments on wind energy systems. The International Journal of Life Cycle Assessment. … Continue reading
Posted in EROEI Energy Returned on Energy Invested, Wind
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Mined Oil sands EROI 5, in-situ 2.9, or 1 if refinement, transportation, & environmental costs included
Nuwer, R. Feb 19, 2013. Oil Sands Mining Uses Up Almost as Much Energy as It Produces. InsideClimate News. EROI SURFACE MINED oil sands (20% of reserves) EROI 5 according to J. David Hughes research released Tuesday. EROI 5.5 to … Continue reading
Posted in EROEI Energy Returned on Energy Invested, Tar Sands (Oil Sands)
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EROI negative for Coal-to-Liquids (CTL) at Shenuha Direct Coal Liquefaction plant
Kong, Z. et al. 23 January 2015. EROI Analysis for Direct Coal Liquefaction without and with CCS: The Case of the Shenhua DCL Project in China. Energies 8(2): 786-807. Many nations see coal-to-liquids (CTL) as a way to avoid … Continue reading
Posted in Coal to Liquids (CTL), EROEI Energy Returned on Energy Invested
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Large agribusiness gets corporate welfare via illegal ethanol subsidies
What more proof is needed that the Energy Returned on Energy Invested of ethanol is negative? They’re losing money and getting corporate welfare to keep the scam going, meanwhile destroying prime topsoil, poisoning the land with pesticides, and eutrophying the … Continue reading
Posted in Biofuels, EROEI Energy Returned on Energy Invested
Tagged agribusiness, biodiesel, EROEI, ethanol, illegal, subsidies
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Energy return on investment, peak oil, and the end of economic growth
David J. Murphy and Charles A. S. Hall. 2011. Energy return on investment, peak oil, and the end of economic growth in “Ecological Economics Reviews.” Robert Costanza, Karin Limburg & Ida Kubiszewski, Eds. Annals of the New York Academy of … Continue reading
Posted in Charles A. S. Hall, EROEI Energy Returned on Energy Invested, EROEI remaining oil too low, How Much Left, Peak Oil, Scientists
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Charles Hall on EROEI
[ For a full understanding of EROI, which Hall invented in 1973 as a way of evaluating which energy resources could best replace fossil fuels, see Hall’s latest book: Hall, Charles A.S. 2017. Energy Return on Investment: A Unifying Principle … Continue reading
Posted in Charles A. S. Hall, EROEI Energy Returned on Energy Invested, EROEI remaining oil too low
Tagged EROEI, EROI, Hall
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Stephen Leeb & Charles Hall on EROI & Investing
Stephen Leeb. 5 Jun 2013. Dangerous Times As Energy Sources Get Costlier To Extract. Forbes. The optimists believe that our energy problems have been largely solved. I wouldn’t bet on that. The real issue with oil isn’t how much we … Continue reading
Posted in EROEI Energy Returned on Energy Invested
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EROI downward spiral
Stephen Leeb. June 2013. Dangerous times as energy sources get costlier to extract. Forbes. Remember the term “peak oil”? With all the oil now available from oil shale, tar sands, and other new sources, many analysts assume that the old … Continue reading
Posted in EROEI Energy Returned on Energy Invested
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What is global EROI now? A Review of 2012 EROI of Global Energy Resources
[ FYI the USDA recently updated the numbers on the energy balance of corn ethanol in 2015 Energy Balance for the Corn-Ethanol Industry. Todd “Ike” Kiefer has written a rebuttal that can be found here. Past articles of his include … Continue reading
Posted in EROEI Energy Returned on Energy Invested
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