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Examining the Limits of 'Energy Return on Investment'


The energy transition isn’t just sounding the death knell for fossil fuels. According to some experts, it has also revealed flaws in an idea that has bugged some academics for decades: As we move to less energy-dense fuels, could we end up without enough surplus for society?
At the heart of this debate is one of the most important physical metrics you’ve never heard of: energy return on investment, or EROI. 
Devised in the 1980s by systems ecologist Charles A.S. Hall and others, the basic principle behind EROI,  also called energy returned on energy invested, is simple: A source of energy is only useful if you can get more energy out of it than what you put in.  ....

New York , United States , Michael Liebreich , Jessica Lambert , Euan Mearns , Schalk Cloete , Stephen Balogh , Charlesas Hall , Teknisk Forskning , Tom Palmer , Gail Tverberg , Liebreich Associates , Swiss Federal Institute Of Technology , University Of New York , Generation Energy Initiative , Middle Ages , Unifying Principle , Next Generation Energy Initiative , State University , Swiss Federal Institute , Cornwall Insight , Energy Return On Investment , Renewable Energy , Fossil Fuels , Energy Density , Wind Power ,