The problem with this view is that if you look at the energy demand curve for the human race, there are only two long-term sources that can even potentially satisfy the demand: nuclear and space-based solar. Wind, geothermal, ground-based solar, tidal...there just isn't enough energy there to satisfy the demands, especially once you factor in the inefficiencies of power transmission.

The reason it's a problem, of course, is because the both methods are politically difficult and require significant engineering (if not research) and capital investment to make them practical.