more of a Jevons question, but do you also agree that the increasing use of 'renewable' energy like solar/wind will bring about an explosion in total energy demand/use?
Then an increase in fossil fuel use due to decreasing cost?
Interesting question. I think reducing electricity cost (with technology improvements in solar/wind) will definitely increase total energy demand. But that will translate only in a limited capacity to decreased fossil fuel cost. Fossil fuel costs have a ceiling based on how much it costs to get them out of the ground. Prices won't be able to fall (in the long-term) below the marginal cost of production.