San Jose powerhouse Nanosolar has improved the efficiency of their printable solar cells, made from nanoparticle ink. The company now claims it can pump out enough solar panels every year to harness 1 gigawatt of power from the sun. Still not enough to power the Flux Capacitor (1.21 GW), but it would put a considerable dent in U.S. power usage. The typical U.S. home consumes about 8,900 kilowatt hours per year.