We are running into the same problem with battery back-up, grid-tie systems. Many Rapid Shutdown solutions turn off the array when utility power is off, which isn't desirable. We have one client with an underground service and the local AHJ wants the RS initiating device near the meter (as our Canadian EC requires) which is hundreds of feet away. In this circumstance but without back-up, we would usually just use an AC disconnect near the meter to initiate RS, but now we're facing the prospect of running a new control circuit all the way back to the pole or requesting a variance.
Eric Smiley, P.Eng. Project Manager, North Island E: e...@vecoop.ca T: 1-888-386-0116 ext 702 (toll free) C: 250-703-6004 W: viridianenergy.ca <http://www.viridianenergy.ca> <http://www.viridianenergy.ca/> RENEWABLE POWER NOW On Mon, 4 May 2020 at 17:04, <d...@energysolarnow.com> wrote: > Many customers ask about keeping power alive when the grid is down. > Besides battery backup, I advocate the Secure Power feature of SunnyBoy > inverters. > But the problem with MLPE is that it is incompatible with Secure Power. > When the grid goes down the MLPE disconnect each solar module's DC feed. So > when the Secure Power activation switch is thrown there is no DC to power > it up, even if the Secure Power output is fed to the MLPE power feedin. > So I have only been able to install SunnyBoy Secure Power on existing > systems without Rapid Shutdown MLPE. > > Does anyone have a work around for this, short of installing a separate > small battery backed inverter to keep the MLPE alive? > > Don Barch > Energy Solar > _______________________________________________ > 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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