Again, we should divide power usage to those systems requiring electricity and those requiring light. Electricity is needed to produce light, of course, so a modicum of energy resources is necessary for any device, unless I think of something better [boss . . .]
Light comes from the sun, is divisible, but not storable. But I think demand for power capacity will maintain if we go into optical designs, and increased efficiency in designing power tools and machines will reduce power usage as well. Similar streamlining of other finesse machines should reduce power usage. If all else fails, we have nuclear technology, streamlined by the computer. The consideration then is transmission of power. I think it can be done as A.C. Clarke suggested -- collect and beam by satellite. Since they're not communicative [reflective], they can be dark and orbit the Earth. I don't know if this is efficient. Find out and see what happens.
