Tag Archives: EROI

41 Reasons why wind power can not replace fossil fuels

Preface. Electricity simply doesn’t substitute for all the uses of fossil fuels, so windmills will never be able to reproduce themselves from the energy they generate — they are simply not sustainable.  Consider the life cycle of a wind turbine … Continue reading

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Why Concentrated Solar Power is not a good choice for a 100% Renewable Energy System

Preface.  The authors conclude that: In light of the obtained results — a low capacity factor and Energy Returned on Invested, an intensive use of materials—some scarce, and the significant seasonal intermittence) — the potential contribution of current CSP technologies … Continue reading

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Crash alert: China’s resource crisis could be the trigger

Preface.  Way to go Nafeez Ahmed, your second home run of reality based reporting on the energy crisis this week.  There are countless economists within the mainstream media predicting an economic crisis worse than in 2008, but they totally ignore … Continue reading

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Why tar sands, a toxic ecosystem-destroying asphalt, can’t fill in for declining conventional oil

[ This is a book review of Tar Sands: Dirty Oil and the Future of a Continent, 2010 edition, 280 pages, by Andrew Nikiforuk. Many “energy experts” have said that a Manhattan tar sands project could prevent oil decline in … Continue reading

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Peak Oil, Coal and Natural gas in China

[ I provide a short, 2 page overview of the paper Wang, J.L, et al. 2017 after my analysis of “A review of physical supply and EROI of fossil fuels in China”, Petroleum Science.  A more detailed, more wide ranging … Continue reading

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Renewable EROI must include storage, low capacity factor, wide boundaries

[ Trainer argues that when you consider how the capacity factor of wind and solar are to fossil plants, seasonality of wind and solar the number of facilities is quite large to deal with the intermittency problem.  Therefore the storage … Continue reading

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Richard Heinberg on why low oil prices do not mean there is plenty of oil, EROI, collapse

[ Yet another wise, thoughtful, and wide-ranging essay from my favorite writer of the many facets of a civilization about to decline as it is starved of the fossil fuels that feed it.  Although the topics are quite varied, Heinberg … Continue reading

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Peak soil: Industrial agriculture destroys ecosystems and civilizations. Biofuels make it worse.

Alice Friedemann. 2017. Peak Soil.  Last update Oct 23, 2017, first 2007 [ Formerly titled: Why Biofuels are Not Sustainable and a Threat to America’s National Security.  Shorter versions appear in the following books: Jacqueline Langwith, ed. 2008.  “Opposing Viewpoints: Renewable … Continue reading

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Minerals: Natural gas from Ugo Bardi’s “Extracted”

Preface. This is just a small sampling of what Bardi thinks might happen post fossil fuels, mostly shortened and reworded. Here are 7 other posts from this great book: Mining: Waste, Pollution, Destruction Ugo Bardi predictions of the future Minerals … Continue reading

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Why studies come up with different Energy Returned on Invest (EROI) results: can it be fixed?

[ There are many issues with biofuels beyond their trivial to negative energy return on investment (EROI). In Peak Soil I point out that current industrial farming techniques are destroying topsoil about 15 times faster than pre-fossil fuel economies — … Continue reading

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