I'm usually under producing but today is an exception. The temp today is 19 degrees. The sun is full, we have 4-5 inches of fresh snow on the ground. As I use the 18kpv my readings show right now to be 6320w (395w per panel) coming in. I have 8 (395w) bi fi and 8 mono (380w) in series 8-each with a voltage of 337v, as I write this. A little while ago was 6740w.(421w per panel) My figures if right come out to full rated or more. The bi-fi of the first 8 must be adding extra wattage to thous first 8.(due to snow reflex) Just wonder if it is possible for the panels to hurt them selves producing more than there rated amount? or I'm figuring this wrong.