Author Archives: energyskeptic

Pedro Prieto: many solar panels won’t last 25-30 years, EROI may be negative

See my review of “Spain’s Solar Revolution” for background on what follows: Our study concluded that, when analyzed what we called “extended boundaries energy inputs”, about 2/3 of the total energy inputs were other than those of the modules+inverters+metallic infrastructure … Continue reading

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Petroleum council urges Arctic oil to offset declining production in lower 48

The U.S. should immediately begin a push to exploit its enormous trove of oil in the Arctic waters off of Alaska, or risk a renewed reliance on imported oil in the future, an Energy Department advisory council says in a … Continue reading

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Making the most energy dense battery from the palette of the periodic table

There hasn’t been much progress in batteries the past 200 years, not enough for affordable cars, let alone far more essential freight vehicles. The very heavy, 4,647 pound Tesla Model S gets most of its mileage from aerodynamics, reduced rolling … Continue reading

Posted in Electric Cars, Lithium-ion | Tagged , , , , , | 3 Comments

Wave, Tide, Ocean Current, In-stream, OTEC power: National Academy of Sciences 2013

A review of “An Evaluation of the U.S. Department of Energy’s Marine and Hydrokinetic Resource Assessments. 2013. Marine & Hydrokinetic Energy Technology Committee; National Research Council” by Alice Friedemann, July 7, 2014, www.energyskeptic.com Last updated April 15, 2015 OTEC Introduction … Continue reading

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All Electric Trucks. Probably not going to happen. Ever. Why not?

There are “forms of transport that cannot be electrified — heavy-duty trucks and planes… Even if the electricity problem can be solved, it won’t address the needs of planes, trucks, ships and some industrial heating that cannot be electrified” (Long). … Continue reading

Posted in Batteries, Lithium-ion, Trucks | Tagged , , , , , , , | 2 Comments

Tilting at Windmills, Spain’s disastrous attempt to replace fossil fuels with Solar Photovoltaics

Book review of “Spain’s Photovoltaic Revolution. The Energy Return on Investment”, by Pedro Prieto and Charles A.S. Hall. 2013. Springer. Reviewed by Alice Friedemann, www.energyskeptic.com Last updated April 11, 2015 with responses from Prieto on criticism received at the 2015 … Continue reading

Posted in Alternative Energy, Charles A. S. Hall, Debt, Electric Grid, Energy, EROEI Energy Returned on Energy Invested, Photovoltaic Solar, Solar | Tagged , , , , , , | 14 Comments

GAO on why ethanol, and other non-drop in fuels, face pipeline & installation at service station challenges

[The challenges that ethanol faces in being put into new or modified pipelines and added to gas stations are issues faced by all alternative fuels (methanol, CNG, LNG, DME, diesohol, CTL, hydrogen, and so on) in a transition from gasoline … Continue reading

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Biofuels do not scale up enough to power society

Richard, T. August 23, 2010. Challenges in scaling up biofuels infrastructure. Science. (329)   Below are excerpts from this paper.  Look at the impossible scale of biomass required: 150 EJ/year = 15 billion metric tons of plant biomass = 200 billion … Continue reading

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Oil shortages: Transportation needs to go back to high inventories, not just-in-time delivery

Huge amounts of fuel are wasted as trucks arrive half full with just the needed parts at factories and warehouses and return empty. As oil shocks strike, fuel will be less available.  Large inventories will help by cushioning businesses from … Continue reading

Posted in Railroads, Ships and Barges, Transportation, Trucks | Leave a comment

The shocking truth about life in Saudi Arabia, oppression, conformity, poverty, but internet may change things

Karen House. 2013. On Saudi Arabia: Its People, Past, Religion, Fault Lines – and Future. Vintage. 320 pages. [Saudi Arabia produces 1 in 4 barrels of oil. Their fate will affect all of us. The way women are treated is … Continue reading

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