``We found that tracking solar panels have a 38.7% power increase, because it is pointing towards the sun the whole time.'' ``So that's an extra four hours a day that tracking solar panels can collect energy.'' ``It replicates the sun and solar panels, and sees if a tracking solar panel can collect more energy in a day than a static solar panel. We could always do with a little extra sunshine in our day - particularly when it comes to harnessing solar power. He said stationary solar panels could not collect energy for two hours after sunrise and two hours before sunset, because they were not pointed at the sun during those times.

Source: Otago Daily Times August 08, 2016 18:00 UTC