The rigour of the Jacobson et al. RE plan

UPDATE: 26 August 2017 - A response to Jacobson et al.'s response has been published with further detail here. Completely decarbonising energy systems is a difficult and complex problem. Wind and solar have the benefit of modularity, falling costs, and scalability. They are contributing to lowering the emission intensity of legacy electricity systems. But at high …

The competitive struggle between technology and resource depletion

The study of EROI may be of little more than academic interest except for two factors. Energy extraction has conformed to Ricardo’s ‘best first’ principle, meaning that the easiest resources to extract tend to be the first. But at the same time, human ingenuity continually pushes the technological frontier forward. Hence, there is a competitive …