Technology

 They will figure out a way  to get rid of the batteries. Just like they figured out how to fix the problems with solar 40 odd years ago. I asked this question of a Jr. High school teacher in 1979; "why are we using a finite energy resource like crude oil, and  coal, when we could be using an infinite resource like the sun, considering the sun shines here 98% of the time?"  The teacher Mrs. Moody answered this 14 year old with; "the technology hasn't caught up yet." At that time technology was advancing at about every year or so. Now technology advances every 3 to 6 months. 

Like with the electric light, the automobile, and the airplane, technology will solve the problems, because all new concepts have problems in the beginning. It has been that way since the beginning of time, and will be so in perpetuity. To dismiss it because of something so banal and inane as politics, is to look backward, and not forward. It is good that some have the foresight to look ahead, and not be deterred by the ignorance, lack of imagination, and hypocrisy of those who live in the past.