> > Summary: Comments and ideas welcome. re performing surgery on > > Silicon/glass laminated PV panels > > > > I have access to a useful number of new Silicon / glass (standard > > construction) 300W PV panels which have "low output". > > "The price was right" even with their issues. > > And even better if restorable. > > I'm surprised that these have reached here in this condition as other t= han > > utterly nominal testing would have shown the fault. > > (Factories I have been involved with have used Xenon flash illumination= to > > plot full load lines for every panel). > > > > There are 72 cells per panel in 6 strings of 12 panels. > > These should produce about 46V oc but do not produce much above 30V. > > > > I now have 8 of these panels. > Total cost was $NZ160. >=20 >=20 > Rear access methods through rear sheet as per Ken's links seem by far the > best means. Those big panels must be a handfull... I have the smaller 60 cell ones, but= you still=20 know you've done some exercise getting 20 of them up a flight of stairs~! Do you tend to set them up as a string with one inverter, or micro-inverter= s to take=20 care of variances between panels - in case some can not be restored to100% = ? --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .