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Recent Posts
- 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.
- Why methanol cannot replace petroleum as a transportation fuel
Tag Archives: energy return
Negative energy return of solar PV in Northern Europe
Preface. I once yanked this paper after huge blow back, but in the past few years, I have no reason to doubt Ferroni and Hopkirks methods, boundaries, or conclusions, so I’m putting this post back. If you automatically dismiss this … Continue reading
Posted in Photovoltaic Solar, Solar EROI
Tagged energy return, EROEI, photovoltaic, solar
Comments Off on Negative energy return of solar PV in Northern Europe
Many steps using fossil fuels to make cans & potato chips
Preface. I am gobsmacked by how much energy goes into making beverage cans and potato chips, look at all the steps, each one using energy! Why haven’t we run of oil yet? Especially when you look at everything else out … Continue reading