Re: [RE-wrenches] Panels appear to be different colors

2021-11-06 Thread Bill Hoffer
True, but that are doing all kinds of secret sauce doping trying to up the efficiencies too! On Sat, Nov 6, 2021, 9:48 AM Jay wrote: > Thx bill > > A side question, i thought most of the color had to do with AR coatings > and not the actual poly silicon? > > Jay > > On Nov 6, 2021, at 9:18 AM,

Re: [RE-wrenches] Panels appear to be different colors

2021-11-06 Thread Jay
Thx bill A side question, i thought most of the color had to do with AR coatings and not the actual poly silicon? Jay > On Nov 6, 2021, at 9:18 AM, Bill Hoffer wrote: > >  > Jay > > That is possible. Also the sorted cells are packaged in boxes that do not > match the number needed per

Re: [RE-wrenches] Panels appear to be different colors

2021-11-06 Thread Bill Hoffer
Jay That is possible. Also the sorted cells are packaged in boxes that do not match the number needed per module (and there is always some breakage during soldering and layup) so it is likely that they are mixing lots at some point or during repairs of strings that get broken. Mixing higher

Re: [RE-wrenches] Panels appear to be different colors

2021-11-06 Thread Jay
Many OEMS outsource cells, is it possible the cells came from different cell companies? Jay Peltz power. > On Nov 5, 2021, at 7:27 PM, Bill Hoffer wrote: > >  > Like any manufacturing process there are variations, especially solar cells, > regardless of type ( poly vs mono). It is getting

Re: [RE-wrenches] Panels appear to be different colors

2021-11-05 Thread Bill Hoffer
Like any manufacturing process there are variations, especially solar cells, regardless of type ( poly vs mono). It is getting harder to the difference between poly and mono this days due to coating processes to improve efficiency. Cells can be sorted by output (watts) and or. Color matching.

Re: [RE-wrenches] Panels appear to be different colors

2021-11-05 Thread Ryan Harkins
I think it can best be described as Lots, some manufacturers actually state that if uniform color is desired you need to match lot numbers. That would ensure crystalline cells from the same batch and would be the most uniform in appearance. Beyond that, it’s just hard to know until they are