averagejoe13
New Member
I am slowly installing panels connected to Solark 12k. Right now it is 7 Jinko 410W panels all in series connected to the single MPPT input (so 2870W nominal). Overall it works, but after adding 3 panels to 4 I installed earlier, I noticed something weird - it looks like MPPT is struggling to settle on a single point. This happened on a clear sky day today while all panels are under full sun, no shading.
I am slowly building it out, trying different ways to mount, etc. As of right now 3 panels are mounted in a different spot quite a bit of distance from 4 I installed earlier. All 7 panels are pointing approximately to the same direction and at the same angle, but I did not made it precise. Could minor angle and/or direction in these 3 + 4 panels cause Solark's MPPT constantly chase voltage/current? Eventually, once I install them all, I will parallel and group them to be closer to each other, but I was wondering if I should be looking for some issue right now.
Graph below - notice how voltage and current constantly jumping in opposite direction between 1pm and 3:30pm - I did not see anything like that when I had just 4 panels hooked to the inverter. I have Solark configured to home load only, and the load is always above what PV currently can produce (and I also have battery hooked up for a rare occasion when both AC units cycle at the same time)
I am slowly building it out, trying different ways to mount, etc. As of right now 3 panels are mounted in a different spot quite a bit of distance from 4 I installed earlier. All 7 panels are pointing approximately to the same direction and at the same angle, but I did not made it precise. Could minor angle and/or direction in these 3 + 4 panels cause Solark's MPPT constantly chase voltage/current? Eventually, once I install them all, I will parallel and group them to be closer to each other, but I was wondering if I should be looking for some issue right now.
Graph below - notice how voltage and current constantly jumping in opposite direction between 1pm and 3:30pm - I did not see anything like that when I had just 4 panels hooked to the inverter. I have Solark configured to home load only, and the load is always above what PV currently can produce (and I also have battery hooked up for a rare occasion when both AC units cycle at the same time)
