People have been backfeeding thru their meters long before UL1749 came along. The meter mfgr probably has the standards that their design meets, including UL, NEMA etc that will put any complaints to rest.
Jim Duncan North Texas Renewable Energy NABCEP Certified Solar PV Installer No.031310-57 TECL 27398 On 2011/8/12 9:45, Kirk Herander wrote: > Hello, > > I am now in a debate with the metering dept. of a local utility. They > don’t want a PV system to be energized and tested until a bidirectional > electronic meter is installed. They insist that an old plain Jane > mechanical meter can be damaged and is a safety concern if power is > pushed through it (its running backwards) to the grid. I have never > heard of, witnessed, or been told this by any utility or AHJ inspector > until now. Have any of you ever? > > I don’t know the reason for their paranoia. I assume that many utility > districts don’t to this day install bidirectional electronic meters. And > rely on the original mechanical meter to count backwards reliably and > safely. > > Kirk Herander > > VT Solar, LLC > > dba Vermont Solar Engineering > > NABCEP^TM Certified installer Charter Member > > NYSERDA-eligible Installer > > VT RE Incentive Program Partner > > > > _______________________________________________ > List sponsored by Home Power magazine > > List Address: [email protected] > > Options& settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules& etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org > _______________________________________________ List sponsored by Home Power magazine List Address: [email protected] Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
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