Category Archives: Energy

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

Why biofuels can not scale up to replace petroleum

Preface. This is my favorite paper on why we can’t replace crude oil with biofuels.  Of course, oil is a biofuel. But alas, not renewable, since it took over 100 million years to make them. Every year we burn fossil … Continue reading

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Military Threats: Peak oil, population, climate change, pandemics, economic crises, cyberattacks, failed states, nuclear war

Mackintosh C (2010) Peak Oil “The debate is over”. Permaculture research institute. https://www.permaculturenews.org/2010/11/10/peak-oil-the-debate-is-over/ Preface. The military is more realistic about the challenges the world faces than congress or other branches and government agencies. In 2010, all of the military branches … Continue reading

Posted in China and War, CyberAttacks, Disasters, Military, Pandemics, Peak Oil, War | Tagged , , , , , | Comments Off on Military Threats: Peak oil, population, climate change, pandemics, economic crises, cyberattacks, failed states, nuclear war

Skyscrapers: A bad idea as energy declines

Preface. One reason Paris is such a lovely city is that it was built to human scale, with buildings of five stories or less, because that was about as high as people were willing to climb, so not surprisingly, rents … Continue reading

Posted in Blackouts, Concrete, Earthquakes, Hurricanes, Infrastructure & Collapse, Infrastructure & Fast Crash, North Korea | Tagged , , , , , , | Comments Off on Skyscrapers: A bad idea as energy declines

Review of Lights out: the electricity crisis, the global economy, and what it means to you

Preface. My books and energyskeptic.com explain why the electric grid can’t stay up.  This is a book review of Makansi’s “Lights out: the electricity crisis, the global economy, and what it means to you”. He explains why the grid is … Continue reading

Posted in Electric Grid, Energy Books | Tagged , , , , | 1 Comment

Deforestation in the news

Preface. I wrote in “Life after fossil fuels” that as energy declined, it would be hard to cut down distant forests with limited oil supplies.  I thought this because even in Britain, so denuded of trees people turned to filthy … Continue reading

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Review of “Vision or Mirage: Saudi Arabia at the Crossroads”

Preface.  This is a book review of Rundell’s “Vision or Mirage: Saudi Arabia at the Crossroads”. If this book is right, things have gotten a lot better in Saudi Arabia than when my other review on Saudi Arabia was written … Continue reading

Posted in Middle East, Peak Oil, Peak Resources, Threats to oil supply | Tagged , , , | 1 Comment

Horses will be essential to wars in the future

Source: De Decker K (2008) Bring back the horses. Low-Tech Magazine. Preface. Horses will not only play a key role in agriculture in the future after oil decline, they’ll replace the dozens of kinds of trucks that exist today, and … Continue reading

Posted in Muscle Power | Tagged , , , , | 8 Comments

Hibernating freeze-thaw molten salt batteries for seasonal energy storage

Preface.  A 100% renewable grid can’t happen without long-term energy storage. Today that’s done with natural gas (with a little help from hydropower in the 10 states that have most of it). Meanwhile nuclear and coal chug along at a … Continue reading

Posted in Battery - Utility Scale, CSP with thermal energy storage, Renewable Integration | Tagged , , , | 1 Comment

Hydrogen hopium: Storage

Source: Russel Rhodes (2011) Explosive Lessons in Hydrogen Safety. https://appel.nasa.gov/2011/02/02/explosive-lessons-in-hydrogen-safety/ Preface.  What is hopium? Irrational or unwarranted optimism. An addiction to false hopes. A metaphorical substance that causes people to believe in a false hope (H + opium). And Hopium … Continue reading

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Hydrogen hopium: green hydrogen from water

Additional energy consuming steps not shown: pumping water to the electrolyzer, purifying the water, compressing or liquefying to -423 F, pumping into storage container, the trucks to deliver H to stations costing $75 million each, since pipelines are super expensive … Continue reading

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