Yesterday’s post was all about whether or not solar panels can break. And lo and behold, SunPower has just released an informative new video showing some of the behind-the-scenes testing that’s being done in the manufacturing facilities. Since SunPower places a 25 yr. performance guarantee on all of their panels, they follow very stringent guidelines to make sure that they can stand behind their product, 100%.

The short video below details SunPower’s efforts to continually strive for the most efficient panels in the world.