I have 24 - 450W panels (10.8 KW system) with a Sol-Ark 12K and Tigo optimizers. What seems to happen is as String B increases with output String A decreases. C is not affected. This is apparent in a 7 minute swing from cloudy to sunny. I believe when the installer was setting this up he put A and B on the same MPPT and C on the other. The installer told me I was getting the correct about of power the system was rated. I don't know, just looks strange to me.
Any idea what may be going on?
Any idea what may be going on?