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Recent Posts
- Fusion is already running out of fuel
- Peak Oil is Officially Here! World oil production peaked November of 2018
- Wood, the fuel of preindustrial societies, is half of EU renewable energy
- Rare Earth updates: recent research on why complex & intelligent life are rare in the Universe
- Book review of “Chip War” and the Fragility of microchips
- The tremendous material and energy toll of the digital economy
- Nuclear attack on U.S. could kill 90% of Americans
- What percent of Americans are rational?
- Book review of Lights Out. A Cyberattack. A Nation Unprepared. Surviving the Aftermath
- Off-Road vehicles & equipment need diesel fuel
- Book review of “Prime Movers of Globalization: the History & Impact of Diesel Engines & Gas Turbines”
- Mental Health. Coping with the future: notes from Jackson & Jensen’s “An Inconvenient Apocalypse”
- Tesla Semi trucks hauling corn chips
- What is the plan for an electric grid outage that lasts for months?
- Where to be? Links to Superfund, hazardous waste and other toxic sites in U.S.
Category Archives: Charles A. S. Hall
Charles Hall: politicians and economy do best when oil is cheap
Preface. Politicians claim credit for a good economy, but what makes an economy prosperous? Cheap oil. During Trump’s reign “relatively cheap oil and gas are keeping the U.S. economy strong. But this cheap oil and gas is being partially subsidized … Continue reading
Why studies come up with different Energy Returned on Invest (EROI) results: can it be fixed?
[ There are many issues with biofuels beyond their trivial to negative energy return on investment (EROI). In Peak Soil I point out that current industrial farming techniques are destroying topsoil about 15 times faster than pre-fossil fuel economies — … Continue reading
Posted in Biofuels, Biomass EROI, Charles A. S. Hall
Tagged biomass, EROEI, EROI, ethanol
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Murphy & Hall 2011 Adjusting the economy to the new energy realities of the second half of the age of oil
[ Below are excerpts from this 5 page paper, slightly rearranged, go here to see all of the text, figures, and tables. Alice Friedemann www.energyskeptic.com author of “When Trucks Stop Running: Energy and the Future of Transportation, 2015, Springer] Murphy, … Continue reading
EROI explained and defended by Charles Hall, Pedro Prieto, and others
[ If you found this post interesting, the following posts are even better (more detailed and in-depth): Tilting at Windmills, Spain’s disastrous attempt to replace fossil fuels with Solar PV, Part 1 Tilting at Windmills, Spain’s disastrous attempt to replace … Continue reading
Posted in Charles A. S. Hall, EROEI Energy Returned on Energy Invested, Pedro Prieto
Tagged Charles Hall, EROEI, EROI, Pedro Prieto
3 Comments
Tilting at Windmills, Spain’s disastrous attempt to replace fossil fuels with Solar PV, Part 2
[ Pedro Prieto presented an update on June 20, 2017 at the International Society for Biophysical Economics “Spain’s Solar Revolution Revisited: six years later” here: Pedro-Prieto_ISBPE_2017-Spains-solar-revolution-revisited.pdf. See the pdf for more information Losses in book overestimated and revised Before / … Continue reading
Posted in Charles A. S. Hall, EROEI Energy Returned on Energy Invested, Pedro Prieto, Photovoltaic Solar, Solar EROI
Tagged capacity credit, EROEI, EROI, solar PV
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Tar sand EROI 2013 Poisson and Hall
Alexandre Poisson, Charles A. S. Hall. 2013. Time Series EROI for Canadian Oil and Gas. Energies 2013, 6, 5940-5959 [ This is an extract from this 20-page paper. Tar sands are the hope offered by techno-optimists that a great deal … Continue reading
Posted in Charles A. S. Hall, EROEI Energy Returned on Energy Invested, Tar Sands (Oil Sands)
Tagged EROI, Hall, oil sand, tar sand
1 Comment
How much net energy return required to prevent collapse?
Preface. Charles Hall, one of the founders of EROI methodology, initially thought an EROI of 3 was enough to run modern civilization, which is like investing $1 and getting $3 back. But after decades of research, Hall concluded an EROI … Continue reading
Posted in Charles A. S. Hall, EROEI Energy Returned on Energy Invested, Net Energy Cliff
Tagged energy return on investement, EROEI, EROI, net energy cliff
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Tilting at Windmills, Spain’s disastrous attempt to replace fossil fuels with Solar PV, Part 1
Book review by Alice Friedemann at energyskeptic of “Spain’s Photovoltaic Revolution. The Energy Return on Investment”, by Pedro Prieto and Charles A.S. Hall. 2013. Springer. Conclusion: the EROI of solar photovoltaic is only 2.45, very low despite Spain’s ideal sunny … Continue reading
Charles A. S. Hall Conventional oil peak was 2005
The global production of conventional oil began to decline in 2005, and has followed a path over the last 11 years very close to our scenarios assuming low estimates of extractable ultimate resource (1.9 Gbbl) John L. Hallock Jr., Wei … Continue reading
Posted in Charles A. S. Hall, Peak Oil
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Charles A. S. Hall “EROI of different fuels and the implications for society”
Charles A.S. Hall, Jessica G. Lambert, Stephen B. Balogh. 2014. EROI of different fuels and the implications for society. Energy Policy 64: 141-152. Highlights: For nations examined, the EROI for oil and gas has declined during recent decades. Lower EROI … Continue reading
Posted in Charles A. S. Hall
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