Need help with figuring out module wiring- I'm not getting this.
Now that I've got my poles in and one rack up, I'm finally going to have to deal with the 48v system's panel wiring. I plan on using Midnite Solar charge controllers, but have waited until I completely understand the formula involving wiring panels in series, and when to parallel the series' together. I've searched myself blue in the face but can't seem to find a simple (or any) answer to this problem. Here's the set up. I've got 24 LG Neon2 320w modules which will be mounted 12 each on two MT Solar top of pole mounts. I'm running a 48v system (2 Trace Xantrex SW5548 inverters, new in boxes).
And here is where I get confused. I am under the impression that the series of panels have to add up to the 48v in the system, then will need to be paralleled together from there. My trouble is I don't get how this formula is figured. Maybe someone can educate me. Here are the specs of my modules-
Vmpp -33.30 v
Impp = 9.52 A
Voc - 40.80 v
Max System voltage - 1000v
Although I've searched everywhere, I still don't understand how to get a panel or panels that are rated at 40.8v open circuit to be run in series for a 48v system. What is it that I'm missing here? Seems like everyone is aware of the answer but me. Thanks for your help.
"Knowing is not enough, we must apply. Willing is not enough, we must do." Goethe
NOS Trace Xantrex power panel, (3) Trace Xantrex SW5548's (2 NOS in boxes, one used), Xantrex DC/disconnect, AC disconnect/conversion, Xantrex T240 Auto transformer, (3) C40 PWM charge controllers, (2 NOS, one used) 8k LG Neon 320w, (8)Evergreen Solar 120w (960w) , Bergey XL.1 1.5k genny, AirX 400 genny, 48v Interstate Workman batts (frozen/toast), (2) MT Solar Top of Pole 12's, (2) Midnite Solar MSPV 4 combiner boxes, (2) Midnite Solar Classic 150's and one nice Ozark hilltop to set them all.