Fyca

So for an update. I moved my panels to my low voltage inverters. I am now making power on shaded and times of partial light. Today was a clear day and I was only able to make 2kw max where I saw nearly 3k on a partial sun day, but overall I'm producing more power than I was. I think I'm going to try the 8x2 panel setup on the high voltage inverters.

I don't know of anyone running high voltage panels. Anyways I switched to 2x6 and it seemed to perform a but better, still seems like the low light is an issue, but I was able to make a max of almost 3k during partial sun yesterday. Today I am going to move my solar to my low voltage inverter and see how that works.

190 is not a typo my panels are usually riding low on volts. If I switch off the panels and then back on I'll see it jump to 400v ish and quickly drop under 200v. KJM recommended 2 strings of 6 so I am going to see how that works today. The battery shows 55.9v but full should be 58v atleast that is what is set on the charger. I have noticed though that my batteries won't charge above 56v, they are custom made from Nissan leaf batteries. I am attaching a screen shot of the battery specs. I am still trying to figure out how to get the pylontech comms to talk to my batteries, any good info on the protocol? My bulk/absorb voltage is 58v. I appreciate your replys. Oh and the reason the inverter shows standby is because I only use that inverter for charging batteries as it is European voltage and high pv voltage and I am split phase, my house runs on 2x 3048 LV-mk.

About an hour later 9:50am now stuck at 120v and making no power. I'll try switching to 2 strings of 6 and if that does better I will make it 2 strings of 8.

The reason I am trying to get as much volts as I can is hopefully to get power earlier and later. My thought being larger voltage will start the scc even with low light, but it does not seems to happen that way. I had better results with low voltage on my 3048 lv-mk's

I would go that route, but my panels are 1000ft away from my house and runs over 2 separate 8awg wire pairs. Voltage drop becomes large on small voltages

Just to be clear my panels are never running at 480v that's just the Ocv. Usually I am running near 190v during charging. I am adding a pic here just to show my performance this morning. I haven't seen voltage much above 400v. My current setup is 12 panels at 32.1v VMP 39.8v Ocv. Does derating happen before mppt adjusts the voltage?

I have the mpp solar 5048gk and I am also experiencing the same problems. Where I would be making atleast 1kw this unit doesn't even register unless it is direct sunlight. My setup is 12x 300w panels 39.1v ocv to the 5048gk charging 25kw lithium battery bank to 2x 3048 LV-mk feeding to house. I am right at 480vdc and still cannot make power unless there is direct sun.