Hello there all,
I purchased a 240W Newpowa solar panel and noticed some odd discoloration as well as what seems to be at least for me a manufacturing defect.
Since there are people here who have a lot of familiarity with a lot of panels, common issues and wear and tear experience I wanted to get people's takes on whether or not this is kosher to receive as a "Grade A cell" panel.
The two defects to be noticed are:
I've seen over 160 (4 panels, 40 per panel) of these solar cells and noticed only one that had this odd pattern in the middle has anyone noticed this before? Does anyone have an answer as to why this might take place?
The second defect is across the board for pretty much the entire lot of 160 cells in that there is significant whitening towards the edge of the cells typically in One direction and some cells do not actually have this defect it is kind of inconsistent to what degree but across the board something that can be seen on all of their cells.
https://photos.app.goo.gl/W7ptub7vws5aCZ3DA
I included very high resolution photos so you can see the details clearly.
I will attach them more disturbing of the discolorations in the forum image upload by cropping out the portion that is most significantly affected.
Edit: I sent the photos that I had to NewPowa and received the following rather unhelpful reply: "The basic component of a solar cell is pure silicon, a product by nature. The different color shade of silicon is caused by nature. Here is a link for your reference. https://sinovoltaics.com/quality-control/grading-of-solar-cells-a-b-c-d/ According to this article, the solar cell color discoloration usually refers to the yellow color in the solar cell. We are proud that we provide the best customer services to satisfy our customer demand. Thank you for choosing Newpowa as your preferred solar provider. Please do not hesitate to contact us should you have any further questions or concerns. Best Regards, Newpowa Team G."
They like to keep referring to their warranty however at the pace that solar panel companies come and go it really doesn't impress me that they're trying to fall back on a warranty that I might not be able to claim when the time comes let it causes an issue with function as the company would likely be gone.
I look forward to hearing about common experiences regarding this if this is something that is absolutely unacceptable or if this is just something that is typical. At the cost of $300 for a 240-watt panel I think that if being advertised as grade A solar cells they should be completely consistent across the board however I look forward to hearing people's experiences thoughts and responses.
Cheers
I purchased a 240W Newpowa solar panel and noticed some odd discoloration as well as what seems to be at least for me a manufacturing defect.
Since there are people here who have a lot of familiarity with a lot of panels, common issues and wear and tear experience I wanted to get people's takes on whether or not this is kosher to receive as a "Grade A cell" panel.
The two defects to be noticed are:
I've seen over 160 (4 panels, 40 per panel) of these solar cells and noticed only one that had this odd pattern in the middle has anyone noticed this before? Does anyone have an answer as to why this might take place?
The second defect is across the board for pretty much the entire lot of 160 cells in that there is significant whitening towards the edge of the cells typically in One direction and some cells do not actually have this defect it is kind of inconsistent to what degree but across the board something that can be seen on all of their cells.
https://photos.app.goo.gl/W7ptub7vws5aCZ3DA
I included very high resolution photos so you can see the details clearly.
I will attach them more disturbing of the discolorations in the forum image upload by cropping out the portion that is most significantly affected.
Edit: I sent the photos that I had to NewPowa and received the following rather unhelpful reply: "The basic component of a solar cell is pure silicon, a product by nature. The different color shade of silicon is caused by nature. Here is a link for your reference. https://sinovoltaics.com/quality-control/grading-of-solar-cells-a-b-c-d/ According to this article, the solar cell color discoloration usually refers to the yellow color in the solar cell. We are proud that we provide the best customer services to satisfy our customer demand. Thank you for choosing Newpowa as your preferred solar provider. Please do not hesitate to contact us should you have any further questions or concerns. Best Regards, Newpowa Team G."
They like to keep referring to their warranty however at the pace that solar panel companies come and go it really doesn't impress me that they're trying to fall back on a warranty that I might not be able to claim when the time comes let it causes an issue with function as the company would likely be gone.
I look forward to hearing about common experiences regarding this if this is something that is absolutely unacceptable or if this is just something that is typical. At the cost of $300 for a 240-watt panel I think that if being advertised as grade A solar cells they should be completely consistent across the board however I look forward to hearing people's experiences thoughts and responses.
Cheers
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