Nobody knows, what The future brings. That can be disturbed on the one hand
and be quite good on the other hand. Because who would like to know how, when
and where he dies.
In the electricity production there will surely be modifications. Scientists count on it, that in the center of the 21 century the supply of oil is exhausted. One must operate then increased with the renewable energy sources and atom.
We believe that the people set increased on the regenerative energies. Water, wind and sun is there to each daily and nighttime somewhere on earth.
Perhaps one installs large solar collectors in space, which the sunbeams can always catch, as the sun always shines in the ALL. These satellites would convert the energy into microwaves and would send it to the earth, where they were taken up by special recipients and transformed into current. Microwaves can penetrate cloud covers and are not harmful for humans. The collectors have to be aligned pretty exactly to the recipients. Because an misdirected jet would let come up in flames a large city within few minutes.
In addition, possibly beside each socket a box hangs, with which one can switch between the different types of generation of current back and forth. If one wants to get the environment a bit dirty, one adjusts the apparatus that current is supplied from a coal power station and if you want to do something for the environment you tilt the switch to solar power.
One future is in any case clear: In The future more and frequent current is needed. That depends on the constantly growing population and the increasing economy. In addition it belongs that current is increased needed also at the night. Ever more people work the night operate and the maintenance possibilities (cinema, Discos etc..) are not only visited on weekend, but also during the week. That it leads to the fact that the power stations must run also during the night on full speed and indicate thus a shorter lifetime.
In any case, The future comes inexorably and brings with it brings changes only we can decide. Perhaps current will become unnecessarily, because machines, kitchen devices and computers in the distant future will live as we on air and food...