Category Archives: Energy

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

The Texas electric grid outage

Preface. In February of 2021, millions of Texans and Mexicans lost electric power in a hard freeze. Oxer (2021) on the March 2 Power Hungry podcast, said that if the Texas grid had blacked out, it would have taken until … Continue reading

Posted in Alternative Energy, Grid instability, Pedro Prieto | Tagged , , , | 2 Comments

Biocoal from food waste and sewage

Preface. This probably doesn’t have a net energy gain because of the energy to move waste and sewage to a common facility, and then transport these wastes from numerous places to the factory where biomass is converted to coal using … Continue reading

Posted in Biomass, Coal | Tagged , , , , , | 2 Comments

Wanted: Math geniuses and power engineers to make a renewable grid possible

Figure 1. OPF solution of original seven-bus system with generator at bus 4 Preface. The U.S. electric grid produced 64% of electricity in 2019 with finite fossil fuels, and another 20% from nuclear power. Since fossil fuels and uranium are … Continue reading

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Why carbon capture contraptions are absurd

Preface.  At the first peak oil conference in Denver (ASPO 2005), many of the other attendees speculated that renewable energy would be the last chance for Wall Street to make money before limits to growth and energy decline put a … Continue reading

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Material and other limits to scaling wind up to 24 GW by 2050

Preface. Here are just a few of the many important points made in this excellent paper: Research showing no constraints on the materials needed to build wind turbines “dismiss potential physical constraints and issues with natural resource supply, and do … Continue reading

Posted in Wind | Tagged , , | 4 Comments

How will 500,000 products made with fossils as feedstock & process energy be created post fossil fuels?

Preface. It is quite likely that after fossils are gone, plastics will no longer be made, since they are incredibly complex – PhDs in numerous fields make them possible – and most kinds have been around for only 50 years … Continue reading

Posted in Biomass, Manufacturing & Industrial Heat, Oil | Tagged , , , , , , | 1 Comment

Why wind and solar will cause more blackouts

Preface. Clearly fossil fuel plants need to be replaced with energy storage — batteries, pumped hydro, or compressed air. Many hours of backup power will be needed since, unfortunately, over two-thirds of total wind power in the U.S. happens outside … Continue reading

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The Nitrogen Bomb: fossil-fueled fertilizers keep billions of us alive

Preface. There are two articles below that explain why natural gas fertilizers are keeping at least 4 billion of us alive today.  If you’re interested in this topic, here are a few more to read: Erisman JW, Sutton MA, Galloway … Continue reading

Posted in Farming & Ranching, Life After Fossil Fuels, Natural Gas, Overpopulation, Peak Food | Tagged , , , , | 4 Comments

Peak oil: “It’s the flows, stupid!” Energy abundance depends entirely on the RATE of energy flow

Preface. Below are excerpts from two articles on why the FLOW RATE of oil is what matters for our fossil-fueled civilization. It’s like how, when filling up a bathtub, you want to turn the faucet on as high as it … Continue reading

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Diesel is finite. Trucks are the bedrock of civilization. So where are the battery electric trucks?

Last updated: 2023-1-21 Preface. Heavy-duty diesel-engine trucks (agricultural, mining, logging, construction, garbage, cement, 18-wheelers, and more) are essential for doing the actual work of our fossil-fueled civilization. Without them, no goods would be delivered, no food grown, nothing manufactured, no … Continue reading

Posted in Batteries, Electric & Hydrogen trucks impossible, Trucks: Electric | Tagged , , , , , , , , , | 11 Comments