Tag Archives: EROEI

67 Reasons why wind turbines cannot replace fossil fuels

Posted on July 26, 2024 by

Source: Leonard, T. 2012. Broken down and rusting, is this the future of Britain’s ‘wind rush’? Preface   Last updated 2023-10-20 The most important problem to be solved is electrifying transportation, otherwise how can you deliver the 30,000 parts of a … Continue reading →

Posted in Alternative Energy, An Index of Best Energyskeptic Posts, Energy, Wind | Tagged , , , , , , , , , , , , | 1 Comment

Fill ‘er up with kelp?

Posted on July 12, 2024 by

Preface. Here are just a few of the dozens of reasons why seaweed can’t make a dent in energy supplies: A negative return on investment like corn ethanol No commercial biofuels are being made from it. Kelp is mainly used … Continue reading →

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Negative energy return of solar PV in Northern Europe

Posted on June 16, 2021 by

Preface.  I once yanked this paper after huge blow back, almost as bad as nuclear proponents, 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 … Continue reading →

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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

The Invisible oiliness of everything

Posted on November 20, 2020 by

Preface.  Even a simple object like a pencil takes hundreds of actions and objects requiring fossil energy to do and make. Not electricity.  This is on of many reasons why wind, solar, or other contraption that make electricity can’t replace … Continue reading →

Posted in Alternative Energy, An Overview, EROEI Energy Returned on Energy Invested, Manufacturing & Industrial Heat, Wind | Tagged , , , | 14 Comments

Peak Oil, Coal and Natural gas in China

Posted on July 31, 2018 by

Preface. Below are excerpts from 2 articles.  You may want to read Tverberg’s article here since I left out the charts and included just a few excerpts. Some key points: The world needs growing energy supply to support the world … Continue reading →

Posted in EROEI Energy Returned on Energy Invested, Peak Coal, Peak Natural Gas, Peak Oil | Tagged , , , , , | Comments Off on Peak Oil, Coal and Natural gas in China

Renewable EROI must include storage, low capacity factor, wide boundaries

Posted on June 25, 2018 by

[ Trainer argues that when you consider how the capacity factor of wind and solar are to fossil plants, seasonality of wind and solar the number of facilities is quite large to deal with the intermittency problem.  Therefore the storage … Continue reading →

Posted in Solar, Solar EROI, Wind, Wind EROI | Tagged , , , , , , | 3 Comments

Richard Heinberg: Paul Krugman’s Errors and Omissions

Posted on March 2, 2018 by

Preface. This article by Richard Heinberg at Postcarbon refutes a column by Paul Krugmen called “Errors and Emissions Could Fighting Global Warming Be Cheap and Free?” here.  Most of my friends and family think I’m nuts because articles like this … Continue reading →

Posted in EROEI Energy Returned on Energy Invested, Richard Heinberg, Solar, Wind | Tagged , , , , , , | 3 Comments

Peak soil: Industrial agriculture destroys ecosystems and civilizations: Biofuels make it worse

Posted on August 31, 2017 by

Preface. In 2018 I thought it was time to reorganize this post, as it grew more and more bloated and disorganized with new information. Eventually it turned into my 2021 book Life After Fossil Fuels: A Reality Check on Alternative … Continue reading →

Posted in Alternative Energy, Biofuels, Biomass, Energy, Peak Biofuels, Peak Topsoil, Soil | Tagged , , , , , , , , , , , , | 2 Comments