[RE-wrenches] Buck-Boost transformer to mitigate high voltage drop?

[Chris Mason]

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.arey at 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.arey at solarcentex.com
>
>
>
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-- 
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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