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Recent Posts
- 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.
- Why methanol cannot replace petroleum in shipping
- Why is everyone afraid of AI taking over? It makes stuff up!
- Do you want to eat, drink, or fly?
Tag Archives: EROI
Do you want to eat, drink, or fly?
Preface. In this post the New York Times writes about renewable airplane fuel from corn ethanol, and questions whether there is enough water and a few other problems. First I’m going to summarize their issues with this, and then follow … Continue reading
Posted in Airplanes, Biofuels, Biomass EROI, Groundwater, Peak Water
Tagged aquifer, aviation fuel, corn, EROI, ethanol
Comments Off on Do you want to eat, drink, or fly?
David Fridley, LBNL scientist, on why alternative energy won’t save us
Preface. I’ve sought out David Fridley’s insights since I first met him in the Oakland Peak Oil group that formed in 2004. That group eventually dissolved, but David’s expertise is still sought out by many of us following energy decline. … Continue reading
Posted in Alternative Energy, An Overview, EROEI Energy Returned on Energy Invested, Net Energy Cliff
Tagged alternative energy, David Fridley, EROI, renewables
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Dozens of reasons why solar power can’t replace fossil fuels
Preface. Last update 2022-9-2. All solar (and wind) do is add to the giant bonfire of burning fossil fuels — which still provide two-thirds of the power for the electric grid. Electricity is just a fraction of how we use … Continue reading
Posted in Alternative Energy, CSP with thermal energy storage, Photovoltaic Solar, Recycle, Recycling, Solar, Solar EROI
Tagged china, EROI, fossil fuels, greenhouse gases, orbiting solar, PV, solar, toxic chemicals
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Why it is hard to replace diesel with biodiesel
Biodiesel is the great hope, our main hope, the only renewable fuel of all the many options, and the closest to the diesel essential for rail, trucks, and ships to do the actual work of civilization. The U.S. produces over … Continue reading
Posted in Biodiesel, Food production, Oil, Peak Biofuels, Peak Food, Transportation, Water
Tagged biodiesel, diesel, EROI
1 Comment
Food shortages as the energy crisis grows and supply chains break?
Preface. This is a long preface followed by two articles about how supply chains and complex tractors may be affected by energy shortages and consequent supply chain failures in the future.Which we’re already seeing as massive numbers of ships sit … Continue reading
Posted in Cascading Failure, CyberAttacks, Economic Decline, Interdependencies, Liebig's Law, Peak Critical Elements, Peak Oil
Tagged collapse, EROI, interdependency, microchip, peak oil, supply chain
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Concentrated Solar Power is unreliable, full of glitches, & has a low energy return
Preface. Concentrating solar power (CSP) projects usually sprawl in a circle over several square miles and can cost over a billion dollars. They use mirrors and lenses to capture the high temperatures needed to efficiently produce or store electricity. Almost … Continue reading
Posted in Concentrated Solar Power, Solar EROI
Tagged capacity factor, concentrated solar power, CSP, EROI
2 Comments
Biogas from cow manure is not a solution for the energy crisis
Preface. Smil’s article about biogas sums up why it won’t contribute to energy shortages as fossils decline. Biogass doesn’t scale and is easy to muck up. Hayes (2015) also makes this case, pointing out that even if every ounce of … Continue reading
Posted in Biofuels, Biomass EROI, Peak Biofuels, Pollution
Tagged bacteria, biofuel, biogas, cow manure, EROI, pollution
2 Comments
The Invisible oiliness of everything
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
How United Nations scientists are preparing for the end of capitalism
Preface. The article below was written by Nafeez Ahmed, who wrote one of my favorite books “Failing States, Collapsing Systems: BioPhysical Triggers of Political Violence“. Ahmed writes: “Most observers have no idea of the current biophysical realities – that the driving … Continue reading
Posted in Crash Coming Soon, Organizations
Tagged biophysical economics, captialism, collapse, EROI, Nafeez Ahmed, United Nations
3 Comments
ITER fusion: How’s it coming along?
Preface. Fusion is the only possible energy resource that could replace fossil fuels according to Martin Hoffert, et al in the 2002 Advanced Technology Paths to Global Climate Stability: Energy for a Greenhouse Planet, Science. I’m not so sure fusion … Continue reading
Posted in EROEI Energy Returned on Energy Invested, Fusion
Tagged delay, EROI, fusion, ITER, nuclear
2 Comments