steveholt480
New Member
Hello All,
A couple weeks ago I got a 6000xp installed and have been monitoring the charts from home ever since. The first day I hooked 10 of the SanTan 250w panels in a single string, just laid out on the ground in a little clearing in the woods I had made. Its not ideal, but with no clouds, it made 7.5kwh which I thought was pretty good.
So the second day I added Y-splitters and a second string of 10 with my remaining 250w panels. So that maxes out the first MPPT at 5kw of solar. Suddenly the generation is very erratic. The graph seems ok until we get to mid day and the real generation is supposed to begin, it seems like as soon as the generation gets too high it will cut itself way back to a few hundred watts before climbing back up and repeating the cycle.
First I suspected clouds, or maybe the BMS is balancing the cells, or maybe the battery is full, but I've observed the behavior when I know the batery isnt full, the sun is out and no cells in the bms are high.
The next weekend I brought a window AC out and noticed I am able to get more solar production if theres a load on, so that makes me think theres an issue with the battery again.
Maybe a misconfiguration in the Inverter? I'll post the export of my settings as well. The battery is a diy 280ah, with the jk b2a24s20p BMS.
I'm limited to looking at charts during the week, but I will be able to get out there this weekend. If anyone has any suggestions or tips on what to look for I would really appreciate it.
Thanks
A couple weeks ago I got a 6000xp installed and have been monitoring the charts from home ever since. The first day I hooked 10 of the SanTan 250w panels in a single string, just laid out on the ground in a little clearing in the woods I had made. Its not ideal, but with no clouds, it made 7.5kwh which I thought was pretty good.
So the second day I added Y-splitters and a second string of 10 with my remaining 250w panels. So that maxes out the first MPPT at 5kw of solar. Suddenly the generation is very erratic. The graph seems ok until we get to mid day and the real generation is supposed to begin, it seems like as soon as the generation gets too high it will cut itself way back to a few hundred watts before climbing back up and repeating the cycle.
First I suspected clouds, or maybe the BMS is balancing the cells, or maybe the battery is full, but I've observed the behavior when I know the batery isnt full, the sun is out and no cells in the bms are high.
The next weekend I brought a window AC out and noticed I am able to get more solar production if theres a load on, so that makes me think theres an issue with the battery again.
Maybe a misconfiguration in the Inverter? I'll post the export of my settings as well. The battery is a diy 280ah, with the jk b2a24s20p BMS.
I'm limited to looking at charts during the week, but I will be able to get out there this weekend. If anyone has any suggestions or tips on what to look for I would really appreciate it.
Thanks
