This would change everything

"What if the answer to some of our biggest problems could be found in the smallest of places, where the difference between what is valuable and what is worthless is merely the addition or subtraction of a few atoms. And what if we could get exquisite control of the essence of energy - the electron."

There are people working right now on the pie-in-the-sky concept of no grid and free energy from the sun that can be beamed around as light. How do they do it? Nano materials.