Kevin, My experience with inverter based kilowatt hour readings is that they are always optimistic. My experience with SolarEdge shows the SolarEdge kilowatt hour reading runs about 2 percent higher then the utility grade meter. I have found similar discrepancies with SMA , Fronius and other inverter manufacturers.
Carl Adams President, SunRock Solar mobile 513.290.9072 On May 22, 2015 8:39 PM, "frenergy" <frene...@psln.com> wrote: > Hopefully there tech department can shed some light on this for you, > however, it would certainly be to SolarEdge's benefit to appear to be > producing more power than it really is, well, unless, Hmmmm .......... > > Bill > > > ----- Original Message ----- > *From:* jarmo.venalai...@schneider-electric.com > *To:* RE-wrenches <re-wrenches@lists.re-wrenches.org> > *Sent:* Friday, May 22, 2015 4:00 PM > *Subject:* Re: [RE-wrenches] Discrepency between inverter kWH reading > andsolar production meter > > Hi: > > The difference is in the accuracy of revenue grade versus inverter KWh > meters. Revenue grade is typically much more accurate. > > Beyond that, even if the accuracy of both was really good at lets say +/- > 0.5%, you could still get a 1% overall difference in readings as one could > be +0.5% and other -0.5%, even though they are both working to spec. > > JARMO > > _____________________________________________________________________________________ > > *Jarmo Venalainen* | * Schneider Electric ** | Xantrex Brand* | > *CANADA* | *Sales Application Engineer* > *Phone:* +604-422-2528 | *Tech Support:* 800-670-0707 | *Mobile:* > +604-505-0291 > *Email:* *jarmo.venalai...@schneider-electric.com* > <jarmo.venalai...@schneider-electric.com> | *Site:** www.Xantrex.com* > <http://www.xantrex.com/> | *Address:* 3700 Gilmore Way, Burnaby, BC > V5G4M1 > <http://www.xantrexrebate.com/> <http://www.xantrex.com/> > <https://www.facebook.com/Xantrex> <https://twitter.com/Xantrex> > <https://twitter.com/Xantrex> > > > *** Please consider the environment before printing this e-mail > > > > From: Kevin Eigel <ke...@ecohousesolar.com> To: RE-wrenches < > RE-wrenches@lists.re-wrenches.org>, Date: 05/22/2015 02:38 PM Subject: > [RE-wrenches] > Discrepency between inverter kWH reading and solar production meter > Sent > by: "RE-wrenches" <re-wrenches-boun...@lists.re-wrenches.org> > ------------------------------ > > > > I recently installed a Solaredge 7600 inverter and two feet away from it > installed a GE 210 solar kWh utility grade meter. Over the course of three > months the kWh production measured by the inverter is more than 200 kWh > greater then the production showing on the GE meter. I changed out the GE > meter for the last week and the discrepancy has continued, so it looks like > it is not the meter. > I am looking for any help in understanding whey there is this large > discrepancy on the kWh reading between the inverter and the production > meter, when they are so close together. The Solaredge technical help desk > has been of no use. > > -- > Kevin Eigel > President > Ecohouse Solar > 1857 Northwest Blvd. Ste 201, Columbus, OH 43212 > www,*ecohousesolar.com* <http://ecohousesolar.com/> > 614-805-5776 > > ______________________________________________________________________ > This email has been scanned by the Symantec Email Security.cloud service. > ______________________________________________________________________ > _______________________________________________ > 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 > > > > ------------------------------ > > _______________________________________________ > 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 > > > _______________________________________________ > 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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