Most of the systems around here that were affected are microinverter based, so we plan to look at degradation impacts through monitoring.
On Wed, Sep 13, 2017 at 6:49 PM, Brian Teitelbaum <bteitelb...@aeesolar.com> wrote: > Thanks for the early report Jason. Be safe down there. > > I would be cautious about those modules that were so violently tossed > about, even if the glass is intact. They may be full of cell micro fractures > > It would be interesting if we had IR images of working arrays from before > and after a huge wind event like that, to see if there is any degradation > of output. Maybe there are enough monitored systems with historical data > now to see the effects, if any. > > Brian Teitelbaum > AEE Solar > > On Wed, Sep 13, 2017 at 3:18 PM, Jason Szumlanski <jason@ > floridasolardesigngroup.com> wrote: > >> I'm based in Fort Myers and we cover the hardest hit areas from Irma. We >> are in the "stuff" right now, so I'll make this brief until I have more >> time, which might be a while. We are seeing quite a bit of minor damage and >> some major damage. We're getting calls from all dealers' customers and a >> couple of our own clients. We have several homes with one or two panels >> dislodged. There is no rhyme or reason. Some are middle of arrays, some on >> edges. Panels are ripped right off rails, leads ripped from microinverters. >> Strangely, it looks like the panel j-box connection and MC4 connectors >> survived better than the microinverter end of the DC leads. Amazingly, we >> have several panels that were blown onto driveways, other roofs, and pool >> cages with NO DAMAGE except frame scrapes. Very weird. We haven't seen a >> shattered panel yet, but it's early. >> >> I'm heading to a self-storage facility tomorrow where there are three >> 25kw systems on different buildings. Two buildings are unscathed. One >> building lost ALL of the panels apparently. Tornado? Hard to say. >> >> So far (other than the 25kw I have not evaluated) we have not seen a >> single fastener pulled out. All of the failures are panel top and mid >> clamps at this time. Anchor and rails remain intact. Possibly installation >> errors? Possibly sheared off T-bolts? Hard to tell and we may never fully >> know. >> >> We generally require 48 inch spacing between anchors into trusses for >> engineered systems. The pullout values are pretty high. It looks like the >> attachment points into the roof are not going to be the failure point in >> the systems in Florida, but there is a LOT of work to be done still. It's >> going to be a very interesting few months ahead! >> >> >> Jason Szumlanski >> Florida Solar Design Group >> >> >> On Tue, Sep 12, 2017 at 3:09 PM, James Rudolph <jamesrudolp...@gmail.com> >> wrote: >> >>> Aloha Everyone, >>> I was just wondering how all the PV arrays did during these storms? >>> Does Florida have higher pull out values and wind designs for their >>> PV/H20 systems? >>> Is there any thing the rest of us could learn from all this? >>> Photos? >>> >>> >>> Mahalo Nui Loa, >>> >>> >>> *James B. Rudolph* >>> >>> *Hawaii Unified* >>> >>> *Director of Energy* >>> >>> *ES Electrician # 10816* >>> >>> *NABCEP Certified PV Installer # 091209-155* >>> >>> *80* >>> >>> >>> >>> >>> >>> >>> >>> >>> _______________________________________________ >>> 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 >>> <https://mailtrack.io/trace/link/622d6b24698f6f9632e219fe38730fce8d834753?url=http%3A%2F%2Flists.re-wrenches.org%2Foptions.cgi%2Fre-wrenches-re-wrenches.org&userId=1613865&signature=4303fdc18451d112> >>> >>> List-Archive: http://www.mail-archive.com/re >>> -wrenc...@lists.re-wrenches.org/maillist.html >>> <https://mailtrack.io/trace/link/b80164c87511ebf493fdbc8f1e356146e0b2f96b?url=http%3A%2F%2Fwww.mail-archive.com%2Fre-wrenches%40lists.re-wrenches.org%2Fmaillist.html&userId=1613865&signature=c714475883b30998> >>> >>> List rules & etiquette: >>> www.re-wrenches.org/etiquette.htm >>> <https://mailtrack.io/trace/link/358b027e704d5310dabf3ceaf5406573fb82f9db?url=http%3A%2F%2Fwww.re-wrenches.org%2Fetiquette.htm&userId=1613865&signature=30ad58753b571c47> >>> >>> Check out or update participant bios: >>> www.members.re-wrenches.org >>> <https://mailtrack.io/trace/link/729a7ffc319d1c70b4c27b23dbaddf5ad3b8820e?url=http%3A%2F%2Fwww.members.re-wrenches.org&userId=1613865&signature=3be33b749ea42f23> >>> >>> >>> >> >> _______________________________________________ >> 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 >> <https://mailtrack.io/trace/link/622d6b24698f6f9632e219fe38730fce8d834753?url=http%3A%2F%2Flists.re-wrenches.org%2Foptions.cgi%2Fre-wrenches-re-wrenches.org&userId=1613865&signature=4303fdc18451d112> >> >> List-Archive: http://www.mail-archive.com/re >> -wrenc...@lists.re-wrenches.org/maillist.html >> <https://mailtrack.io/trace/link/b80164c87511ebf493fdbc8f1e356146e0b2f96b?url=http%3A%2F%2Fwww.mail-archive.com%2Fre-wrenches%40lists.re-wrenches.org%2Fmaillist.html&userId=1613865&signature=c714475883b30998> >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> <https://mailtrack.io/trace/link/358b027e704d5310dabf3ceaf5406573fb82f9db?url=http%3A%2F%2Fwww.re-wrenches.org%2Fetiquette.htm&userId=1613865&signature=30ad58753b571c47> >> >> Check out or update participant bios: >> www.members.re-wrenches.org >> <https://mailtrack.io/trace/link/729a7ffc319d1c70b4c27b23dbaddf5ad3b8820e?url=http%3A%2F%2Fwww.members.re-wrenches.org&userId=1613865&signature=3be33b749ea42f23> >> >> >> > > > -- > Brian Teitelbaum > Application Engineer > AEE Solar, Inc. > Redway, CA > Tel: (805) 242-7856 > Toll Free 1-800-777-6609 ext 7856 <(800)%20777-6609> > bteitelb...@aeesolar.com > www.aeesolar.com > <https://mailtrack.io/trace/link/21c0e5599d5a3caf5dbc200c1d8585cbba737981?url=http%3A%2F%2Fwww.aeesolar.com%2F&userId=1613865&signature=ca4b3524b23efec7> > > > > > _______________________________________________ > 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 > <https://mailtrack.io/trace/link/25379ceffd190ab29aea449499ebb34fedf873f2?url=http%3A%2F%2Flists.re-wrenches.org%2Foptions.cgi%2Fre-wrenches-re-wrenches.org&userId=1613865&signature=dd1c56c770f49a9d> > > List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches. > org/maillist.html > <https://mailtrack.io/trace/link/f7b982c4735cd2f7a39fe4f63278222439b5d6b1?url=http%3A%2F%2Fwww.mail-archive.com%2Fre-wrenches%40lists.re-wrenches.org%2Fmaillist.html&userId=1613865&signature=ea492e259a0b7f52> > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > <https://mailtrack.io/trace/link/c9b259a657f8e50092854b33d923d555124ef501?url=http%3A%2F%2Fwww.re-wrenches.org%2Fetiquette.htm&userId=1613865&signature=9c298c459533b2b8> > > Check out or update participant bios: > www.members.re-wrenches.org > <https://mailtrack.io/trace/link/d1627827401ed1b4952e89587e34114bbe7a07b5?url=http%3A%2F%2Fwww.members.re-wrenches.org&userId=1613865&signature=706c753463fb0fb9> > > >
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