The statement "our need for electricity actually doubles every 10 or 12 years" is totally meaningless. Needs are always unlimited. If the consumtion of energy has doubled in any time period, it has happened only because our production of energy has doubled as well. It's our production that allows for our consumtion. So when he says that our need for electricity doubled, he is actually saying that we have become better at using availible resources in a beneficial way. We are simply more effective.

To think that we'll run out of resources soon is also completely wrong. The amount of resources in the world are almost endless. The biggest source of energy we have is the sun, and its depletion is something we won't have to worry about in the near future.