Discuss Cell damage in the Solar PV Forum | Solar Panels Forum area at ElectriciansForums.net

Welcome to ElectriciansForums.net - The American Electrical Advice Forum
Head straight to the main forums to chat by click here:   American Electrical Advice Forum

DomB

-
Reaction score
0
Hi during some recent work at a customer's place we noticed one of their solar panels cells was damaged, pictures below. The array is about 5 years old.

The Voc of that panel was ~26v, whereas all the others were at ~35V.

As with shadows etc, could this one panel affect the output of the whole string and cause significantly reduced output?

Thanks!
p.s. we gave them a clean too!


Cell damage 20171111_145535 - EletriciansForums.net
Cell damage 20171111_145541 - EletriciansForums.net
 
26V makes it look like the bypass diode has kicked in to take the affected cells out of production anyway, in which case the losses would only be those associated with 1/3 of 1 panel being removed from production. If the bypass diode hadn't functioned then yes this cell would drag the rest down.
 

Reply to Cell damage in the Solar PV Forum | Solar Panels Forum area at ElectriciansForums.net

OFFICIAL SPONSORS

Electrical Goods - Electrical Tools - Brand Names Electrician Courses Green Electrical Goods PCB Way Electrical Goods - Electrical Tools - Brand Names Pushfit Wire Connectors Electric Underfloor Heating Electrician Courses
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc

YOUR Unread Posts

This website was designed, optimised and is hosted by Untold Media. Operating under the name Untold Media since 2001.
Back
Top
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.

I've Disabled AdBlock