[RE-wrenches] Bad Diodes in QCells?

[AE Solar]

Wrenchers,
Wondering if anyone has had any experience with bad diodes in QCell panels.
Two of our projects this summer had panels that were putting out half of
their rated voltage. At first it seemed like it was a defect from the
factory, and it was caught upon commissioning the system, but I'm now
seeing that another panel has gone bad about two months after install. I've
spoken with a few distributors and they said they haven't heard anything
about this being a pattern. I'm in the RMA process with QCell, and don't
feel like I'm getting complete transparency from them. So far we have 8
defective panels out of 300. It was in two different projects that were
months apart. I'm not sure if they were from the same shipment or not. All
of them were Q.PEAK DUO 400 watt panels. Interested to know if anyone else
is having similar experiences? Thanks for any thoughts.
Adam

Adam Katzman
Autonomous Energies
PO Box 1245
Kingston, NY 12402
www.autonomousenergies.com
(518) 567-1468
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