Hi i was at a SMA lecture and they said the boards are replaceable, so hopefully a perdon never has to replace the complete unit
On Nov 6, 2017 10:08 AM, "Kelly Larson" <[email protected]> wrote: > …especially replacement! The inverter weighs in at 185 lbs, so > replacement likely will require the use of a crane on multi-story flat > roofs. > > I am in complete agreement with you that putting inverters on the roof is > not ideal. Not only is servicing and replacement an issue, but there is no > doubt that the inverter will run hotter sitting in the sun. But this is > one way to satisfy the 2014 rapid shutdown requirements, so I assume we > will be seeing more of it. Compared to other commercial roof rapid > shutdown solutions that employ a contractor it seems important to consider > rooftop inverters, as they provide potentially more reliable system > operation in the long run. Maybe we should be looking at lower DC/AC > ratios for these systems? > > I am still wondering if anyone on the list has installed these SMA Core1 > inverters. > > Thanks for the comments! > Kelly > > PS: I didn’t design or install the system, but am inspecting and > commissioning it. > > > > On Nov 2, 2017, at 2:30 PM, William Miller <[email protected]> > wrote: > > > > Kelly: > > > > I see one problem: the inverter on the roof. Makes servicing and > > replacement a real pain. > > > > William > > > > > > > > Lic 773985 > > millersolar.com > > 805-438-5600 > > > > > > -----Original Message----- > > From: RE-wrenches [mailto:[email protected]] On > > Behalf Of Kelly Larson > > Sent: Thursday, November 02, 2017 12:36 PM > > To: [email protected] > > Subject: [RE-wrenches] SMA Core 1 Inverter > > > > Dear estemed Wrenches, > > > > I will be inspecting a system with SMA’s new Core 1 inverters and am > > wondering: What experience do you have with this inverter? > > > > I think it is the first inverter made to sit freestanding on a commercial > > roof. It looks like it has some super interesting features, including > > “String Failure Detection”. (Why is this feature deactivated by > default?) > > > > I’m not sure how well it will satisfy the rapid shutdown requirement when > > the roof array areas are broken up, but on one with a contiguous array > area, > > it looks like it’ll work for the 2014 NEC. > > > > Any bugs or issues I should know about? > > > > Thanks in advanced for your replies! > > > > Blessings, > > Kelly > > > > > > ~~~~~ > > Kelly Larson > > 707-223-3209 > > > > Box 504 > > Ukiah, CA 95482 > > Electrical Engineer > > NABCEP Certified Solar PV Installation Professional IREC Certified Master > > Trainer for Photovoltaic Installer CA Electrical Contractor# 868189 > > SolarKelly.com > > > > "Whatever you can do or dream you can, begin it. Boldness has genius, > power > > and magic in it." -- Goethe > > > > > > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: [email protected] > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: http://www.mail-archive.com/[email protected]. > org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > > _______________________________________________ List sponsored by Redwood Alliance List Address: [email protected] Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/[email protected]/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
