Tag Archives: EROI

Why aren’t net energy and Energy Returned on Invested the basis of U.S. energy policy?

Posted on April 25, 2016 by

[ David Murphy doesn’t answer this question, but does give the history of EROI and more importantly, what this means for oil production and society.  If we are going to spend money on fossil alternatives, wouldn’t it make sense to … Continue reading →

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Tilting at Windmills, Spain’s disastrous attempt to replace fossil fuels with Solar PV, Part 1

Posted on October 31, 2015 by

Book review by Alice Friedemann at energyskeptic of “Spain’s Photovoltaic Revolution. The Energy Return on Investment”, by Pedro Prieto and Charles A.S. Hall. 2013. Springer. Conclusion: the EROI of solar photovoltaic is only 2.45, very low despite Spain’s ideal sunny … Continue reading →

Posted in Alternative Energy, Charles A. S. Hall, Debt, Electric Grid, Energy Books, EROEI Energy Returned on Energy Invested, Pedro Prieto, Photovoltaic Solar, Solar, Solar EROI | Tagged , , , , , , , , | 21 Comments

Charles Hall on EROEI

Posted on April 1, 2014 by

[ 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 →

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