I thought it would be of some interest to this board to demonstrate the value of having your panels always perpendicular to the sun. My solar tracker system is currently configured with two identical arrays consisting of 20 KC120-1 panels driving an upgraded STXR2500 inverter. Today’s power output was 19,849 and 19,836 whr for each array. Although most of your arrays are either fixed or seasonal, you can see that it is possible to generate 1,000 whr/day per KC120 panel. A description of my tracker can be found in the Xantrex Beta Testers Archives.