The Oil Drum

Can improvements in energy efficiency “save” modern civilization as we face declines in world oil production? While the efficiency revolution may let us drive on half the gas, the productivity revolution may make it affordable to twice as many--or more...

One argument against the efficacy of improving energy efficiency is called Jevons’ Paradox. This suggests that, when we improve our energy efficiency, we also reduce our demand for energy from that same use. That decreased demand in relation to supply makes energy cheaper, which in turn makes us use more of it. It has been suggested that this “rebound effect” only accounts for 5-20% of efficiency gains, but I have written previously about the potential for a “shadow” rebound effect that potentially accounts for nearly the entire efficiency gain.

The Tata Nano: While the efficiency revolution may let us drive on half the gas, the productivity revolution may make it affordable to twice as many--or more.

Often, I find it difficult to apply the very theoretical Jevons’ Paradox to pragmatic thinking about our energy future. The recent launch of the Tata Nano, however, stands as an example of Jevons’ Paradox in action. Possibly of much greater importance, however, are two related issues: the feedback effect between increased economic productivity and increasing energy consumption, and the aspirations of an emerging global middle class.

This is a guest post by Jeff Vail.

Is the push for greater energy efficiency a good policy choice to address energy scarcity after Peak Oil? Here’s a bold answer: NO, at least not in a vacuum. Efficiency is not a standalone solution, but part of the much more complex problem of reducing total energy consumption that must address Jevon’s Paradox and the Rebound Effect.