Thanks all for the detailed explanations as to why backfeeding a generator is a potential problem. Tump, I think in general, that is often the case, but I have seen regular grid tie inverters pickup some average generators. The bottom line is do we want to take the risk, even if small, of owning a blown generator. We have in most cases chosen to avoid this possibility by either tying in above the automatic transfer switch, or putting a relay in that disconnects the inverter when the generator connects to the house. If someone wants to take on that risk, that is their own decision. I just object when the installer is not upfront about the potential problem.
Howie On Wed, Oct 21, 2015 at 7:24 AM, Chris Mason <[email protected]> wrote: > That trends to be the saving grace for most installations, however in > the islands, we modify the inverter parameters to accept poor quality > power. Our inverters will connect to most decent generators. > On Oct 20, 2015 7:16 PM, "Tump" <[email protected]> wrote: > >> I guess that am missing something..... I have yet to see a generator that >> is available to most home owners that will meet the required AC voltage & >> Hzs to latch onto any grid tied inverter. >> On Oct 20, 2015, at 12:37 PM, jay wrote: >> >> I don’t think you are missing anything. >> jay >> >> On Oct 20, 2015, at 9:01 AM, Howie Michaelson <[email protected]> >> wrote: >> >> Does anyone think that there is no issue with having enphase potentially >> backfeeding a backup generator? We almost always will tie in upstream of a >> generator transfer switch, but a competitor is telling clients with an >> enphase system there is no concern. Am I missing something? >> >> Thanks, >> Howie >> Howie Michaelson >> NABCEP Certified Solar PV Installer™ >> >> Catamount Solar >> Renewable Energy Systems Sales and Service >> VT Solar Electric Incentive Partner >> http://www.CatamountSolar.com <http://www.catamountsolar.com/> >> 802-272-0004 >> >> >> >> _______________________________________________ >> 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 >> >> >> *[email protected]* *www.SWNL.net* >> Solarwinds Northernlights >> * Serving Mid Coast Maine & Northern California* >> * 207-832-7574 <207-832-7574> Cl. 610-517-8401 >> <610-517-8401> * >> *Blair "TUMP" May* >> >> >> * ******** MAINE'S CHARTER ******** * * >> NABCEP "Certified PV Installer"* >> >> >> * ******** MAINE'S CHARTER ******** ** >> Trace Xantrex "Certified" Dealer / Installer"* >> >> >> >> >> _______________________________________________ >> 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 >> >> >> > _______________________________________________ > 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 > > >
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