Category Archives: Energy

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

Vaclav Smil on natural gas (ethane) and plastics

Preface. Vaclav Smil doesn’t mention using plastic for heat, but in a letter to The Guardian, David Reed suggests: “The effort of collecting, transporting and cleaning plastics for possible recycling has largely failed, created much more pollution and contributed massively … Continue reading

Posted in Natural Gas, Vaclav Smil | Tagged , , , | 2 Comments

Boston Globe: the false promise of nuclear power

Last Updated August 2021. Preface. This article raises many objections to nuclear power. Theoretically it could be cheaper, but the exact opposite has happened, it keeps getting more expensive. For example the only new reactors being built in the U.S. … Continue reading

Posted in Nuclear Power Energy | Tagged , , , , , | 5 Comments

Rust Power

Preface.  This is yet another article with an energy generation idea that will probably never work out and become commercial.  But it gives hope and dreams to ordinary people who think what a cool idea, and who will never check … Continue reading

Posted in Far Out | Tagged , | 2 Comments

Carbon capture could require 25% of all global energy

Preface.  This is clearly a pipedream. Surely the authors know this, since they say that the energy needed to run direct air capture machines in 2100 is up to 300 exajoules each year. That’s more than half of global energy … Continue reading

Posted in CO2 and Methane, Far Out | Tagged , | 2 Comments

How safe are utility-scale energy storage batteries?

This 2 MW battery, installed by the Arizona Public Service electric company, exploded in April 2019 and sent eight firefighters and a policeman to the hospital (Cooper 2019). At least 23 South Korean lithium-ion facilities caught fire in a series … Continue reading

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Gravity energy storage

Preface. This is interesting, but not commercial. And as my book “When trucks stop running” explains, trucks are the basis of civilization, and can’t run on electric batteries or overhead wires. Even if they could, I explained why a 100% … Continue reading

Posted in Energy Storage, Research | Tagged | 9 Comments

Cheddar Power

Preface. Oh how I love cheddar. When I hear that someone is a vegan I stare in disbelief. A life without cheese is a life not worth living, especially a life without cheddar. As a perpetually hungry child, if Mom … Continue reading

Posted in Far Out | Tagged | 4 Comments

Pumped Hydro Storage (PHS)

Preface. This is the only commercial way to store energy now (CAES hardly counts with just one plant and salt domes to put more in existing in only 5 states). Though of course hydropower is only in a few states … Continue reading

Posted in Dams, Energy Production, Hydropower, Pumped Hydro Storage (PHS) | Tagged , , , , , | 15 Comments

Can concentrated solar power be used to generate industrial process heat?

Preface. The bright future of solar thermal powered factories, makes some important points about using concentrated solar power to generate heat: “…A large share of energy consumed worldwide is by heat. Cooking, space heating and water heating dominate domestic energy … Continue reading

Posted in Concentrated Solar Power, Energy Infrastructure, Manufacturing & Industrial Heat | Tagged , , , , , , | 6 Comments

Concentrated Solar Power can only exist in deserts and use too much water

What follows is my summary of: Bracken, N., et al. 2015. Concentrating solar power and water issues in the U.S. Southwest. U.S. department of energy, National renewable energy lab. Alice Friedemann   www.energyskeptic.com  author of “When Trucks Stop Running: Energy and … Continue reading

Posted in Concentrated Solar Power, Electricity Infrastructure | Tagged , , , | 1 Comment