I installed my Grid Tied solar system in 2009, and have been monitoring its energy production on a daily basis. In the video below, I present a detailed analysis of its cost, and return on investment (ROI). Watch the video for complete details, but bottom line is my only regret is that I did not put in twice the capacity back in 2009. Be sure to watch the whole video, as in the last few minutes I outline some key factors you must consider before installing solar.