How do you check panels for short or wiring problems.

Drawing 1550 watts inside. Full sun seeing pv 1028 watts up to 40amps. at 25.1 volts. Why not 1500 watts on pv?

Sun angle I would bet and trees....

My 500w inverter fan runs constant when my fridge comes on but not anything less.. My 2000w never comes on so I guess your inverter is being taxed by your usage.. What kind of inverter do you have? It might be a bad one.. or a cheap one..
Renogy told me with a 60a CC you need a 60a fuse.. It's for a surge protection not use.. At least that's what I understand.. But I don't believe anything Renogy says anymore... It depends on who you are talking to at Renogy with what answers you get.. But what I have read you need 60a fuse for a 60a CC...

Jimmy, you keep just post parts of the info. 1028w divided by the input voltage = amps input
Is input voltage 3X22 or 66v?  No, what is the input voltage, it should be 5 times the panels Vmp or higher if cold.
If I assume 90v input voltage then 1028/90 is ~11 amps.

Full suns needs to strike the panel at 90 degrees for full panel output and the panels need to be cool, as cool as spec conditions

Please note you are using more than you make.

Rabird I thought I gave it in the past. I put it all here. I have 15 100 watt panels. They put out 22v each. They are in series of 5 each group has 110 volts and I checked each group and that is what it puts out. Each panel has 5.29 amps. Each group of 5 in series will still produce 5.29 amps. Three groups of 5 will equal 15.9 amps. I hope this clarifies it. I am just learning this stuff. I may have something wrong. I did late see 1125 watts. It was a perfect sunny day no trees though I am only at about 20 degrees. I drew 1600 watts to test it out. I don't plan on doing that normally. I am sending the 3000 watt inverter back. I reinstalled my 1500 watt inverter. Thanks for all your help. I hope you look over my figures and correct me if I am wrong. I don't know anybody that has solar. All I know is what I read and hear. I did see 40 amps on the solar controller Don't know how it could be correct. I have a 20 amp breaker on pv to controller it should have tripped. Maybe it was reading what the inverter was producing appreciate your input. Thanks Tattoo.

Jimmy, when reporting a panel output like 1028watts also post panel voltage.
The panels can make 22v but that is at ZERO amps. Your panels Vmp should be ~18v so I used 5 X 18 = 90v.
Now when you see input voltage of 110-120v that is because the CC is limiting power cuz you are not using it and/or the batteries do not need all that can be make. Remember the charge profile in the manual, when the batts get to 14.6v (x2 for 24v) the CC limits power to keep em at 14.6v for some period of time, and the CC further and further limits power, the batts won't take any more but you can use this excess! if you want to!

So now we take you wattage input reading of 1125 watts (you are using enough and the batts are discharged enough to take all the panel power). the 1125 watts is @ ~90v so you divide 1125/90 and ya get 12.5As (that won't blow a 20A fuse). If ya got 1500 watts / 90v = 16.6Amps.

So 1125 watts enter the controller @ 90v, internally it is 'bucked' to battery voltage of say 28v while charging. 1125 watts / 28v = 40 amps (this assumes 100% efficiency which is a poor assumption, maybe 90-95%).

So ya got 12+ amps going in (90v) and 40 amps coming out (batt v), both ~1100 watts.

2 Things a MPPT controller does, makes the panels operate @ Vmp and 'bucks' or transforms this to batt v for charging.

From the sticker below your Vmp of 18.9v spec so 5 x 18.9v = ~95v, less on hot days, more of COLD days!!


1500 watts / (5*18.9) = 15.87A    15.87A / 3 strings = 5.29 A. That would be spec

Well Jimmy by what bird said you are doing just fine and you could add two more batteries to be even more efficient...

Question, Are you running just one CC the 60a like mine with your 15 panels?? Or are you running the 40a also?? A total of 2 CC?