The solar power potential of the Sahara desert is absolutely massive. Solar panels in Algeria could generate 3x more electricity than the same solar panels in Germany. A 10,000 square kilometer solar farm in the middle of the desert would be enough to power the entire world. But there's a challenge. How do you get that energy distributed around the globe? Countries like India are pushing for a "one sun, one world, one grid" power grid concept. And there's a private company that thinks they can export solar and wind electricity from Morocco all the way to cloudy UK over the electric grid. But are macro power grid systems like this really the answer? Or is going smaller with microgrids going to be the future?