Category Archives: Energy

the posts in this category used to be in “Energy in A Nutshell” at my former web site.

A Nuclear spent fuel fire at Peach Bottom in Pennsylvania could force 18 million people to evacuate

[If electric power were out 12 to 31 days (depending on how hot the stored fuel was), the fuel from the reactor core cooling down in a nearby nuclear spent fuel pool could catch on fire and cause millions of … Continue reading

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The EMP Commission estimates a nationwide blackout lasting one year could kill up to 9 of 10 Americans through starvation, disease, and societal collapse

[ Several times Dr. Pry recommends  “States should harden their electric grids against nuclear EMP attack because there is a clear and present danger, because protecting against nuclear EMP will mitigate all lesser threats, and because both the federal government … Continue reading

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Hydropower dams and the ways they destroy things

[ This contains excerpts and paraphrasing of a 19 November 2014 NewScientist article by Peter Hadfield “River of the dammed“. Dams typically last 60 to 100 years, but whether Three Gorges can last this long is questionable given the unexpectedly … Continue reading

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Are biofuels a sustainable and viable energy strategy?

[In 2000, Melanie Kenderine at the U.S. Department of energy stated that: “This nation has abundant biomass resources (grasses, trees, agricultural wastes) that have the potential to provide power, fuels, chemicals and other bio-based products.” House 106-147. May 24, 2000. … Continue reading

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Hybrid electric trucks are very different from HEV cars

[ This document explains why it is hard to transfer auto hybrid technology to trucks.  They are entirely different animals — medium-duty trucks weigh up to 10 times more, have up to 10 times the horsepower, and a far longer … Continue reading

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Electric truck range is less in cold weather

[ What follows are excerpts from Calstart’s study of the effects cold weather had on lithium and Sodium Nickel Chloride e-truck batteries Alice Friedemann  author of “When Trucks Stop Running: Energy and the Future of Transportation, 2015, Springer] CALSTART.  … Continue reading

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Diesel is finite. Trucks are the bedrock of civilization. So where are the battery electric trucks?

Introduction to battery electric trucks Heavy-duty diesel-engine trucks (agricultural, cargo, mining, logging, construction, garbage, cement, 18-wheelers) are the main engines of civilization. Without them, no goods would be delivered, no food planted or harvested, no garbage picked up, no minerals … Continue reading

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California oil EROI dropped from 6.5 to 3.5 by 2005

Brandt, A. R. October 12, 2011. Oil Depletion and the Energy Efficiency of Oil Production: The Case of California. Sustainability 2011, 3, 1833-1854 [ Brandt estimates the energy return on investment (EROI) dropped from ~6.5 in 1955 to ~3.5 fifty … Continue reading

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Hall and Lambert: EROI of different fuels and the implications for society

[ Excerpts from the Hall, Lambert, and Balogh EROI paper. You may want to read the original paper here since I’ve left out charts, figures, and text.  In my opinion, EROI is important because it is  due diligence – society ought to … Continue reading

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Energy return of ultra-deepwater Gulf of Mexico oil and gas

Moerschbaecher, M., John W. Day Jr. October 21, 2011. Ultra-Deepwater Gulf of Mexico Oil and Gas: Energy Return on Financial Investment and a Preliminary Assessment of Energy Return on Energy. Sustainability 2011, 3, 2009-2026 [Excerpts from this 18 page paper … Continue reading

Posted in EROEI Energy Returned on Energy Invested, Threats to oil supply | Tagged , , , , , | 1 Comment