01/30/2017
Anonymous
AZ
A major advantage of micro-inverters is that you can track per-panel variation over time so if a panel or inverter fails or experiences a drop in performance, you can spot it right away. Although there's no way to isolate panel performance from its inverter, in my case I knew my issues were inverter related. <br /><br />For reasons explained in the inverter section below, Net Zero Solar replaced all of my inverters two weeks ago. Since then I've been tracking per-panel performance on cloudless days and I'm pleased to see less than +/-2% variation across my 24-panel array. Moreover, after six years, the average output, normalized for the daily temperature range on cloudless days, is tracking less then 3% off initial performance numbers. These stats are better than expected. So I'm very happy with my Sharp panels.