How much of the power produced will be self-consumed, how much will be exported?
On Tue, Aug 16, 2016 at 12:16 PM, Howard Arey <scot.a...@solarcentex.com> wrote: > Good day, > > > > I have a potential client that has an existing 1,000 foot run from the > meter and transformer at the street to the home. This is 4/0 Al and quick > calcs show the voltage drop at over 12%. He acknowledges that the wire is > undersized to keep voltage at/about 240 volts (I have not measured directly > at the street / transformer yet). > > > > I know the wire has the necessary ampacity to carry his current service > needs and to carry amps from the to-be-suggested solar system. > > > > My concern is that the voltage drop will change the 240 volts at the > street/transformer/meter to 211ish (or will I see a higher 268’sh voltage > at the far house end?) at the house. The inverter will try to synch to this > voltage but of course this is outside of typical inverter parameters. > > > > So, instead of re-running much large wire, does anybody have experience > and comments about potentially using a buck-boots transformer at the home > to get us back to 240 volts? This would need to be service entrance sized. > > > > *Howard “Scot” Arey* > > Owner, Solar CenTex > > 254-300-1228 > > scot.a...@solarcentex.com > > > > _______________________________________________ > 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 > > > -- Chris Mason NABCEP Certified Solar PV Installer™ Solar Design Engineer Generac Generators Industrial technician www.cometsolar.com <http://www.cometenergysystems.com> 264.235.5670 869.662.5670 Skype: netconcepts
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