2oldman wrote:
about 1/3
Was that shade 1/3 up from the bottom so that the upper two columns were completely un-shaded? ( if a cell or two on the end of a column is shaded, that kills the whole column AFAIK) So we can say if one diode only was by-passing or both were.
IMO more sampling would be a good idea before doing anything. I don't have any way to put panels in series and try it out to help verify the testing, so others who know how this is supposed to work will have to explain it all. Then maybe alter the set-up if indicated.
Very interesting!