Category Archives: Energy

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

Giant Oil Field Decline Rates

Summary of article 1, Cobb’s “Aging Giant Oil Fields” 2013 The world’s 507 giant oil fields comprise a little over 1% of all oil fields, but produce 60% of current world supply Of the 331 largest fields, 261, or 79%, … Continue reading

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Gail Tverberg: 8 pitfalls in evaluating green energy solutions

Eight Pitfalls in Evaluating Green Energy Solutions November 18, 2014 by Gail Tverberg Does the recent climate accord between US and China mean that many countries will now forge ahead with renewables and other green solutions? I think that there are … Continue reading

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How Much Oil is Left?

How Much Oil is Left? [This is a complex question, because the quality of the oil matters.  We’ve gotten the good stuff, the light, easy oil. Much of the remaining oil is deep, nasty-gunky stuff, in arctic and other remote … Continue reading

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Can Freight Trains be Electrified?

Can Freight Trains be Electrified? by Alice Friedemann  November 13, 2014 High-speed passenger rail is all the rage, but when it comes to electrification of America’s freight trains there’s almost total silence. Yet Europe and Russia have electrified freight … Continue reading

Posted in Electric Grid, Electrification, Railroads | Leave a comment

Why Nuclear Power is not an alternative to fossil fuels

Richard Heinberg describes nuclear as: In “the realm of scientific imagination, with high odds against it, and terrible downside potential. Problems of safe production, transport, waste disposal, ballooning costs, and limits of uranium supply are not nearly resolved. And nuclear’s … Continue reading

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Roger Andrews: California public utilities vote no on energy storage

[My comment: Without energy storage, wind, solar, and other electricity generating alternative resources can’t continue to be added to the electric grid, because they make the grid too unstable and prone to blackouts (which can damage the electric grid). To … Continue reading

Posted in Electric Grid, Electric Grid, Electricity | 6 Comments

Large agribusiness gets corporate welfare via illegal ethanol subsidies

What more proof is needed that the Energy Returned on Energy Invested of ethanol is negative?  They’re losing money and getting corporate welfare to keep the scam going, meanwhile destroying prime topsoil, poisoning the land with pesticides, and eutrophying the … Continue reading

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Ivanpah Biggest solar power plant ever – $2.2 billion for only 100 MW

The $2.2 billion dollar Ivanpah Solar power plant generates 100 MW of power when you take the 25% capacity into account (not 400 MW).  That’s enough power for 25,000 to 50,000 homes (not 140,000 as claimed).  There are 116,700,000 households … Continue reading

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Renewable incentives destabilize, harm electric grid

Wald, Matthew L.   7 Oct 2014. How Grid Efficiency Went South. New York times. Summary: 1) society would be better off if homeowners faced their rooftop solar panels westward, the peak time more energy is needed, but they won’t because … Continue reading

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LNG overview

Liquefied natural gas is natural gas chilled down to -260 F which reduces its volume by about 600 times. Back in 2004 the USA was about to import LNG because we appeared to be running low on natural gas here.  … Continue reading

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