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I watched the HighTechLab video on it, Off-Grid Garage has videos on degradation, didn't see anything on defective panels. Thank you for the video suggestions sir.

Sorry about that, trying to take in lots of info is making my head spin! The panels are REC solar 315W, 45.5Voc. I bought 6 total, and thought i would connect them in series of 3, then parallel them onto a bus bar that then goes into my MPP Solar LV2424 inverter. Here is a link to the panels i...

Hi guys, I was going to look at 10 used 250w PV's for $1100 tomorrow but i saw this. https://watts247.com/product/12-pcs-pallet-new-rec-peak-energy-72-rec315pe-72-3-7kw-solar-panel-bulk-buy/ anyone know if it is legit? 12 new 315w panels for $1588 seems too good to be true. Am I missing something?

The PV's I was going to look at tomorrow are used from a 5 year lease. Surely new PV's would be better than 5 year old used?

Oh no, I did not realize that, shucks. there's $650 down the drain.

Thank you so much fellas, this is why I joined a forum. I did not even know about voltages going up in cold weather. I will go with the recommended 2S3P on my system. I live in Indiana, come winter, below freezing temps are normal. I will adjust and continue with 2S3P. I will connect 2 PV's...

You are right, I do have a form I must fill out in order to do that, but even beyond that, how do I make the physical connections? My MPP solar manual does not include how to connect to the grid.

Hey guys, New to solar and had a few noob questions. I am purchasing an inverter that can take up to 145v and 80a. My main question is once I get some pigtails to get my 3 - 40v 9amp panels in series to produce 120v, what is my next step? I believe I would connect it parallel to my other 3...