Fun fact: Sometimes the stickers on the CT's are incorrect too. Had that happen and took forever to figure out...
On Wed, Aug 15, 2018 at 4:10 PM, Kirpal <[email protected]> wrote: > Jason...not sure about the Enphase consumption monitoring, if it is done > with CT's confirm that your CT's are facing the right direction. Some CT's > are directional and perhaps your consumption monitoring could be backwards > instead of the utility meter wiring backwards.....Seems like the utility > would have noticed incorrect wiring in their can. > We use the E Gauge CT clamps for some monitoring and they are > directional. I am not familiar with the Enphase versions. > > > Sunny Regards, > Kirpal Khalsa > Oregon LRT#25 > NABCEP Certified PV Installation Professional > Oregon Solarworks LLC > www.oregonsolarworks.com > 541-299-0402 > > On Wed, Aug 15, 2018 at 4:01 PM, Jason Szumlanski <jason@ > floridasolardesigngroup.com> wrote: > >> Is it possible for a utility meter to be programmed/wired backward? I >> have a client on an Enphase system with production and consumption >> monitoring, and the Enphase monitoring is showing solar production exceeded >> consumption by 400 kWh for a billing period. However, the meter is reading >> almost exactly the opposite. It seems too coincidental. >> >> I'm going to go out to the site tomorrow to shut down all of the loads >> and see what happens when solar is only backfeeding the meter, but I'm >> curious how the meters are "programmed" or set up to work. >> >> Note that the meter was zeroed to start and the initial billing period >> readings show DEL exceeded REC by 400 kWh, which matches what was billed >> (net usage of positive 400 kWh). >> >> Jason Szumlanski >> >> _______________________________________________ >> 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/re >> [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]. > org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > > > -- *Lorenzo Ortiz Commercial PV Designer* [email protected]* (530) 274-3671* -- <http://californiasolarco.com/referral-program/> *Showroom located at: 149 E Main St. Grass Valley, CA 95945*
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