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<title>Re: [RE-wrenches] Utility disco DC?</title>
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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Keep in mind that a battery based system
could sell to grid with no PV input. Yes, it would require reprogramming (which
can be easily done on site) and ignoring the fact that your can’t do for
very long or without some other charging source. Our local utilities have
approximately an equal mix of battery-less and battery based systems so they
pretty much take the stance that the disco must be on the AC side. They typically
are unwavering about requiring the disco to be within feet of the meter which
would negate the benefit of installing it on the DC side in my experience.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Regards,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Travis Creswell<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Ozark Energy Services<o:p></o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
re-wrenches-bounces@lists.re-wrenches.org
[mailto:re-wrenches-bounces@lists.re-wrenches.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>David Brearley<br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, September 02, 2008
3:28 PM<br>
<b><span style='font-weight:bold'>To:</span></b>
drake.chamberlin@redwoodalliance.org; RE-wrenches<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [RE-wrenches] Utility
disco DC?</span></font><o:p></o:p></p>
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12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=2 face=Calibri><span
style='font-size:11.0pt;font-family:Calibri'>One of my previous colleagues
negotiated this on a high profile project in a new jurisdiction. The inspector
didn’t have a problem with this. <br>
<br>
You should definitely talk to the AHJ. It’s not a difficult case to make:
no PV input = no inverter output. <br>
<br>
Good luck,<br>
<br>
David<br>
<br>
<br>
On 9/2/08 2:56 PM, "Drake Chamberlin"
<drake.chamberlin@redwoodalliance.org> wrote:</span></font><o:p></o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=2 face=Calibri><span
style='font-size:11.0pt;font-family:Calibri'>Hello Wrenches<br>
<br>
Can the lockable utility disconnect be DC? Has anyone tried this?
On an add on system we found this had been done. It
would be convenient to use this method. <br>
<br>
Thanks,<br>
<br>
Drake <br>
<br>
<o:p></o:p></span></font></p>
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</span></font><font size=2 face=Calibri><span style='font-size:11.0pt;
font-family:Calibri'>David Brearley, Technical Editor<br>
<i><span style='font-style:italic'>SolarPro</span></i> magazine <br>
NABCEP Certified PV Installer ™<br>
david.brearley@solarprofessional.com<br>
Direct: 541.261.6545<br>
Fax: 541.512.0343<br>
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