The world's largest solar farm is fully operational. Called Ivanpah, it has almost 350,000 mirrors the size of garage doors that tilt toward the sun with an ability to energize 140,000 homes covering over 5 square miles of the Mojave Desert.

All those mirrors are focused on tubs of water to make steam. That cost 2.2 Billion dollars of which Google is part owner. Maybe it's a prelude to your own personal solar powered heater...Google Mirror.

It is an amazing site, even if they had to relocate some tortises. Wonder if the tortises mind?...