Category Archives: Energy

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

Why no single or combination of alternative energy resources can replace fossil fuels

Posted on March 5, 2021 by

Preface. This 2002 paper is still true today. There simply are no renewable replacements for the fossil fuels that power our civilization.  If only scientists could violate the laws of thermodynamics and physics the way capitalistic crooks cheat, like Bernie … Continue reading →

Posted in Alternative Energy, Biomass, Fusion, Hydrogen, Nuclear Power Energy, Orbiting Solar, Peak Oil, Photovoltaic Solar, Wind | Tagged , , , , , | 6 Comments

Utility scale energy storage doesn’t scale up: limits to minerals and geography

Posted on March 2, 2021 by

Preface. Natural gas is finite, but aside from (pumped) hydropower, natural gas is the main way wind and solar are balanced now. Therefore, a tremendous amount of energy storage will be needed in the future as natural gas declines. And … Continue reading →

Posted in Alternative Energy, Batteries, Battery - Utility Scale, CAES Compressed Air, Mining, Peak Critical Elements, Pumped Hydro Storage (PHS) | Tagged , , , , , , , | 18 Comments

Far Out power #6: Stale beer, crayfish shells, and burning metal powder

Posted on February 24, 2021 by

Preface. Unfortunately, turning beer into biogas requires a pandemic so that it isn’t drunk at pubs instead. Scientists assure us there will be more pandemics as we mow down (rain)forests for shopping malls and come into contact with new viruses, … Continue reading →

Posted in Biofuels, Far Out | Tagged , , | Comments Off on Far Out power #6: Stale beer, crayfish shells, and burning metal powder

Not enough rare metals to scale up solar power

Posted on February 21, 2021 by

  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

What are rare earth metals and how are they used?

Posted on February 15, 2021 by

Preface.  After oil, the main feature of new products will be drastic simplification. The re-use of existing stuff. Lack of precision machine tools as they rust away. Back to basics: wood, iron, and clay. Yet every high-tech object depends on … Continue reading →

Posted in Alternative Energy, Mining, Peak Rare Earth Elements | Tagged , , , , | Comments Off on What are rare earth metals and how are they used?

Even Pencils will be hard to make

Posted on February 9, 2021 by

Preface. Most of us are unaware of how complex our society is, how things are made, how food is grown, how stuff is delivered, and the people, energy, transportation, and kinds and sources of materials in every day objects.  This … Continue reading →

Posted in EROEI Energy Returned on Energy Invested, Localization, Supply Chains | Tagged , , , , | 2 Comments

Many steps using fossil fuels to make cans & potato chips

Posted on January 25, 2021 by

Preface.  I am gobsmacked by how much energy goes into making beverage cans and potato chips, look at all the steps, each one using energy!  Why haven’t we run of oil yet? Especially when you look at everything else out … Continue reading →

Posted in EROEI Energy Returned on Energy Invested, Manufacturing & Industrial Heat | Tagged , , , , | 8 Comments

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

Posted on January 22, 2021 by

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 essential for wind, solar, and high-tech, are anything but clean and green

Posted on January 16, 2021 by

This is a book review of Pitron’s “The rare metals war”.  To produce the metals and minerals to make a transition to wind, solar, nuclear and so on would be incredibly destructive and polluting. A fifth of China’s arable land … Continue reading →

Posted in Battery - Utility Scale, Mining, Peak Critical Elements, Peak Rare Earth Elements, Peak Resources, Photovoltaic Solar, Recycle, Recycling, Wind | Tagged , , , , | 1 Comment

Batteries use rare, declining, critical, & imported elements from unstable countries

Posted on January 7, 2021 by

Preface.  Since oil and other fossils are finite and emit carbon, the plan is to electrify society with batteries.  But doh!  Minerals used in batteries are finite too.  And dependent on fossil-fuels entirely in their life cycle, from mining trucks … Continue reading →

Posted in Batteries, Mining, Peak Critical Elements, Peak Rare Earth Elements | Tagged , | 7 Comments