Search Results for: ferroni

Rees on Overshoot: Growth through contraction: conceiving an eco-economy

Preface.   William Rees writes some of the best and most comprehensible papers of all on the overshoot crisis we are in.  We should have begun a U-turn in the 60s after The Population Bomb, or the 70s when Limits to … Continue reading

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The Green New Deal is not a solution for the real problem: Overshoot

Preface.  Seibert & Rees’ paper is very important.  And also well-written, unlike the usual scientific jargon perfect for putting you to sleep at night.  It’s short too. In just 13 pages Siebert and Rees cover the most important issues we … Continue reading

Posted in Climate Change, Electric & Hydrogen trucks impossible, Limits To Growth, Manufacturing & Industrial Heat, Overpopulation, Overshoot, Peak Critical Elements, Politics | Tagged , , , , , , , | Comments Off on The Green New Deal is not a solution for the real problem: Overshoot

Negative energy return of solar PV in Northern Europe

Preface.  I once yanked this paper after huge blow back, but in the past few years, I have no reason to doubt Ferroni and Hopkirks methods, boundaries, or conclusions, so I’m putting this post back. If you automatically dismiss this … Continue reading

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Not enough rare metals to scale up solar power

  Preface. Sunshine may be free, but the materials to make solar contraptions sure aren’t.  Since sunshine arrives in a diluted form, vast expanses of solar photovoltaic panels will be needed to produce the world’s 24,000 Terawatt hours of electrical … Continue reading

Posted in Alternative Energy, Mining, Peak Critical Elements, Peak Rare Earth Elements, Photovoltaic Solar, Recycle, Recycling | Tagged , , , , , , , | 5 Comments

Renewables: not enough minerals, energy or time and mining is destructive

Preface. Electricity generating contraptions like wind and solar can’t replace the 50% of oil used in global manufacturing, because they can’t generate the high heat needed, or run battery or catenary electric trucks as I explained in “When Trucks Top … Continue reading

Posted in Alternative Energy, Battery - Utility Scale, Peak Critical Elements, Peak Platinum Group Elements, Peak Rare Earth Elements, Peak Resources, Recycle, Recycling, Solar, Wind | Tagged , , , , , , , | 5 Comments

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

Posted in EROEI Energy Returned on Energy Invested, Oil & Gas Fracked | Tagged , , , , , , | 1 Comment

EROI explained and defended by Charles Hall, Pedro Prieto, and others

[ If you found this post interesting, the following posts are even better (more detailed and in-depth): Tilting at Windmills, Spain’s disastrous attempt to replace fossil fuels with Solar PV, Part 1 Tilting at Windmills, Spain’s disastrous attempt to replace … Continue reading

Posted in Charles A. S. Hall, EROEI Energy Returned on Energy Invested, Pedro Prieto | Tagged , , , | 3 Comments

Tilting at Windmills, Spain’s disastrous attempt to replace fossil fuels with Solar PV, Part 2

[ Pedro Prieto presented an update on June 20, 2017 at the International Society for Biophysical Economics “Spain’s Solar Revolution Revisited: six years later” here: Pedro-Prieto_ISBPE_2017-Spains-solar-revolution-revisited.pdf.   See the pdf for more information Losses in book overestimated and revised Before / … Continue reading

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

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