Thanks for your comments Brian. I would also consider these to be "low grade", even though we did not order or pay for "low grade". I did get in touch with the module manufacturer and found out that these did sneak past their QC checkpoint. I was told that their general tolerance for the bus/ribbon alignment is within 1/2 the ribbon width.
I was told that internal arcing is not a concern here because the individual cell is at the same potential, so arcing should not happen with the ribbon/bus being misaligned. Yes, the small amount of cell shading will reduce output, but it is a minute amount of shading, so the loss is negligible.(?) I would appreciate any feedback from any other module manufacturers on this, if we have any on this list? Benn *Benn Kilburn * CSA Certified Solar Photovoltaic Systems Electrician, SkyFire Energy Inc 6706 – 82 Ave NW | Edmonton, AB | T6B 0E7 P: 780-474-8992 | F: 888-405-5843 | www.skyfireenergy.com [image: email] <b...@skyfireenergy.com> [image: facebook] <https://www.facebook.com/SkyFireEnergy> [image: twitter] <https://twitter.com/SkyFireEnergy> [image: linkedin] <https://www.linkedin.com/company/283735?trk=tyah&trkInfo=tarId%3A1408655033432%2Ctas%3Askyfire%2Cidx%3A2-2-5> [image: google] <https://plus.google.com/+SkyFireEnergy/> [image: SkyFire Energy Logo_horizontal] On Mon, Jun 22, 2015 at 12:31 PM, Benn Kilburn <b...@skyfireenergy.com> wrote: > Wrenches, > Have any of you noticed misaligned cell interconnections like the ones in > the attached photo? > I'm hesitant to use these and I already returned another module back to > the distributer that had several cells with misaligned conductors as well, > but just came across these in the order we just picked up. > I'm waiting for a reply from he mfgr but in the meantime I'm wondering if > any of you have seen this and should we be concerned with quality or safety > (arcing?) in the short or long term? > > Thanks, > Benn > > > > > Benn Kilburn > SkyFire Energy Inc. > 780-906-7807 > > >
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