Lena, We've been installing the Solar Edge product for a few years now and are experiencing good reliability. I think we have had 2 optimizers which were DOA from the factory. One was completely dead the other had a 25% reduced output. No problems with warranty replacements.
With Regards Carl Adams, SunRock Solar On Fri, Jan 8, 2016 at 12:07 PM, Lena Wilensky <l...@nunatakenergy.com> wrote: > We've had a strange set of recurring failures from one Solaredge install. > It's a straightforward 5kw system with 20 x REC 255W modules and P300-5 SE > optimizers. > > System was commissioned in 11/2014 and ran fine for about 6mo. At that > time one optimizer failed - gave module short circuit voltage on the > optimizer output when disconnected from the rest of the array. Nothing > visibly wrong. Rest of the array worked fine. > > About 3mo later (this past august), 2 more optimizers failed. We gave > Solaredge an earful, but they were only willing to send replacements for > the 2 newly failed units and 2 spare optimizers for future failures. Same > failure apparently with high output voltage from the optimizer when > disconnected from the array. They said they had never heard of this > happening multiple times and would do an optimizer autopsy. > > We just had another one fail 2 weeks ago. They apparently tested the 2 > failed ones from august and found no water intrusion on the optimizer or > connectors. This is all the testing they can do in the US for these potted > units. They recently sent the failed units to Israel to test them, but > don't expect results for at least 6mo or more. Solaredge claims they've > never seen anything like this and so far they have refused to send > replacements for the rest of the "good" optimizers in the array claiming > that the optimizers may not be the issue. Really? > > Anyone heard of or seen any "batch" failures of these optimizers? Or have > a good contact at Solaredge? I'm about ready to swap in an SMA inverter at > this point, and stay away from module level anything from now on. We're > going to have to triple our prices to pay for all this warranty work, as > Solaredge only gives $25/optimizer and $100/incident to "help" with labor > costs. > > Thanks for any insight.... > Lena Wilensky > > www.nunatakenergy.com > 970-349-3432 > NABCEP Certified PV Installer: > Cert. #R02907-17 > > > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > > >
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