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diy solar

Where to find New/Used Canadian Solar CS5P-240M

Ribeye67

New Member
Joined
Sep 18, 2021
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5
The short part:
I live in the S.F. Bay Area and am looking to replace two and maybe four of my Canadian Solar CS5P-240M panels. Does anyone know a good market place to find at least two of them?

The long part:
I was getting ground fault errors on my SMA SB8000 inverter (blowing 1amp fuses) after having had my DIY grid tied solar system for twelve years. I disconnected all of the panels and took a voltage meter to each to try and find the problem. I found that two were at 37.7V and 38V while the rest were around 50.6V to 50.9V. I pulled the two out of the system, but since I had four strings in parallel, I took the two plus two more to make the strings balanced. Now I have 32 panels instead of 36 on the roof. The system is no longer giving me a fault or blowing fuses, but it sucks to not be getting as much power as I used to. I have looked for new and used for quite a wile now and cannot find anything. Below are the specs for the CS5P-240M. Thank you in advance for any advice.
Pmax: 240W
* Vmp: 48.10V
* Imp: 4.99A
* Voc: 59.30V
* Isc: 5.40A
 
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