<font face="arial" size="3"><p style="margin:0;padding:0;">this is an incorrect myth.</p>
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<p style="margin:0;padding:0;">todd</p>
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<p style="margin:0;padding:0;">On Friday, April 26, 2013 12:30pm, "Bill Turberville" <billturb@ece-llc.com> said:<br /><br /></p>
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<p class="MsoNormal" style="margin:0;padding:0;"><span style="font-size: 11.0pt; font-family: "Calibri","sans-serif"; color: #1f497d;">Batteries actually do better if they are cycled than if they just sit there.  He may actually extend his battery life.  What kind of batteries is he using?</span></p>
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<p class="MsoNormal" style="margin:0;padding:0;"><strong><span style="font-size: 10.0pt; font-family: "Tahoma","sans-serif";">From:</span></strong><span style="font-size: 10.0pt; font-family: "Tahoma","sans-serif";"> <a href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a> [mailto:<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a>] <strong>On Behalf Of </strong>SunHarvest<br /><strong>Sent:</strong> Friday, April 26, 2013 2:25 PM<br /><strong>To:</strong> RE-wrenches<br /><strong>Subject:</strong> Re: [RE-wrenches] Battery Back-up and Grid Tie</span></p>
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<p class="MsoNormal" style="margin:0;padding:0;"><span style="font-size: 10.0pt; font-family: "Arial","sans-serif";">I have a crazy...I mean <em><span style="font-family: "Arial","sans-serif";">creative</span></em> customer who wants a BB system so that he can run off-grid during peak and partial-peak rate hours: 1 to 7pm is peak, 7 to 9pm is partial from PG&E. He got this great idea from a tech at a reputable power optimizer manufacturer, whom I will not name here, who said, "you've got the batteries just sitting there; why not put them to work?"</span></p>
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<p class="MsoNormal" style="margin:0;padding:0;"><span style="font-size: 10.0pt; font-family: "Arial","sans-serif";">Initially he wanted his PV to operate while the sun is shining and the grid is down...and his batteries to supply power when the sun <em><span style="font-family: "Arial","sans-serif";">and</span></em> grid is down. But now he wants his back-up system to do it all. We've touched on all the obvious points: </span></p>
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<p class="MsoNormal" style="margin:0;padding:0;"><span style="font-size: 10.0pt; font-family: "Arial","sans-serif";">- Peak buying is also peak selling</span></p>
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<p class="MsoNormal" style="margin:0;padding:0;"><span style="font-size: 10.0pt; font-family: "Arial","sans-serif";">- Physics and efficiency losses determine that the energy he "saves" will never equal the energy he can put back into his system.</span></p>
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<p class="MsoNormal" style="margin:0;padding:0;"><span style="font-size: 10.0pt; font-family: "Arial","sans-serif";">- Decreased battery life due to increased cycling</span></p>
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<p class="MsoNormal" style="margin:0;padding:0;"><span style="font-size: 10.0pt; font-family: "Arial","sans-serif";">- Costs for batts and special inverters versus generator</span></p>
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<p class="MsoNormal" style="margin:0;padding:0;"><span style="font-size: 10.0pt; font-family: "Arial","sans-serif";">What is the <span style="text-decoration: underline;">definitive</span> argument against BB in general and this "peak shaving" idea in particular?</span></p>
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<p class="MsoNormal" style="margin:0;padding:0;"><span style="font-size: 10.0pt; font-family: "Arial","sans-serif";">Thanks pros.</span></p>
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<p class="MsoNormal" style="margin:0;padding:0;"><span style="font-size: 10.0pt; font-family: "Arial","sans-serif";">Eric</span></p>
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<p class="MsoNormal" style="margin:0;padding:0;"><span style="font-size: 10.0pt; font-family: "Arial","sans-serif";">SunHarvest</span></p>
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<p class="MsoNormal" style="margin:0;padding:0;">----- Original Message -----</p>
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<p class="MsoNormal" style="margin:0;padding:0;background: #e4e4e4;"><strong><span style="font-size: 10.0pt; font-family: "Arial","sans-serif";">From:</span></strong><span style="font-size: 10.0pt; font-family: "Arial","sans-serif";"> <a title="toddcory@finestplanet.com" href="mailto:toddcory@finestplanet.com">toddcory@finestplanet.com</a> </span></p>
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<p class="MsoNormal" style="margin:0;padding:0;"><strong><span style="font-size: 10.0pt; font-family: "Arial","sans-serif";">To:</span></strong><span style="font-size: 10.0pt; font-family: "Arial","sans-serif";"> <a title="re-wrenches@lists.re-wrenches.org" href="mailto:re-wrenches@lists.re-wrenches.org">RE-wrenches</a> </span></p>
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<p class="MsoNormal" style="margin:0;padding:0;"><strong><span style="font-size: 10.0pt; font-family: "Arial","sans-serif";">Sent:</span></strong><span style="font-size: 10.0pt; font-family: "Arial","sans-serif";"> Friday, April 26, 2013 11:57 AM</span></p>
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<p class="MsoNormal" style="margin:0;padding:0;"><strong><span style="font-size: 10.0pt; font-family: "Arial","sans-serif";">Subject:</span></strong><span style="font-size: 10.0pt; font-family: "Arial","sans-serif";"> Re: [RE-wrenches] Battery Back-up and Grid Tie</span></p>
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<p style="margin:0;padding:0;margin: 0in; margin-bottom: .0001pt;"><span style="font-family: "Arial","sans-serif";">our power outages generally come from bad weather too... and of course when the weather is bad the pv does next to nothing. so for emergency backup, i recommend a generator.</span></p>
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<p style="margin:0;padding:0;margin: 0in; margin-bottom: .0001pt;"><span style="font-family: "Arial","sans-serif";">todd</span></p>
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<p style="margin:0;padding:0;margin-right: 0in; margin-bottom: 12.0pt; margin-left: 0in;"><span style="font-family: "Arial","sans-serif";">On Friday, April 26, 2013 10:33am, "Bill Turberville" <<a href="mailto:billturb@ece-llc.com">billturb@ece-llc.com</a>> said:</span></p>
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<p class="MsoNormal" style="margin:0;padding:0;"><span style="color: #1f497d;">Not very often, and usually for no more than an hour or two, although it has been down as long as 5 days, either during tornado season, or ice taking down power lines.  What these people are looking for is Just In Case a big event happens.  They do not want to have all those panels just sitting there.</span></p>
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<p class="MsoNormal" style="margin:0;padding:0;"><strong><span style="font-size: 10.0pt; font-family: "Tahoma","sans-serif";">From:</span></strong><span style="font-size: 10.0pt; font-family: "Tahoma","sans-serif";"> <a href="mailto:re-wrenches-bounces@lists.re-wrenches.org"><span style="text-decoration: underline;"><span style="color: blue;">re-wrenches-bounces@lists.re-wrenches.org</span></span></a> [mailto:<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org"><span style="text-decoration: underline;"><span style="color: blue;">re-wrenches-bounces@lists.re-wrenches.org</span></span></a>] <strong><span style="font-family: "Tahoma","sans-serif";">On Behalf Of </span></strong>Jay Peltz<br /><strong><span style="font-family: "Tahoma","sans-serif";">Sent:</span></strong> Friday, April 26, 2013 12:25 PM<br /><strong><span style="font-family: "Tahoma","sans-serif";">To:</span></strong> RE-wrenches<br /><strong><span style="font-family: "Tahoma","sans-serif";">Subject:</span></strong> Re: [RE-wrenches] Battery Back-up and Grid Tie</span></p>
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<p class="MsoNormal" style="margin:0;padding:0;">Hi bill</p>
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<p class="MsoNormal" style="margin:0;padding:0;">Just how often is your grid down?</p>
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<p class="MsoNormal" style="margin:0;padding:0;">Jay</p>
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<p class="MsoNormal" style="margin:0;padding:0;">Peltz power<br /><br />Sent from my iPhone</p>
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<p class="MsoNormal" style="margin:0;padding:0;margin-bottom: 12.0pt;"><br />On Apr 26, 2013, at 10:01 AM, Bill Turberville <<a href="mailto:billturb@ece-llc.com"><span style="text-decoration: underline;"><span style="color: blue;">billturb@ece-llc.com</span></span></a>> wrote:</p>
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<p class="MsoNormal" style="margin:0;padding:0;">I live in a TVA area where there is a Feed In Tariff.  Everything that is generated by the PV array feeds into the grid through a Generation Meter that ties-in ahead of the house meter.  I have started getting calls from customers who hate having a solar array that does not generate when the grid is down but the sun is shining, but who also want to get the $.12 premium when the grid is connected.  We have lots of systems with SMA Sunnyboy inverters, but more with Enphase micro-inverters.  Rather than trying to reinvent the wheel, what you found to be the best solution for this type of installation?</p>
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<p class="MsoNormal" style="margin:0;padding:0;">W.C. (Bill) Turberville P.E.</p>
<p class="MsoNormal" style="margin:0;padding:0;">President</p>
<p class="MsoNormal" style="margin:0;padding:0;"> </p>
<p class="MsoNormal" style="margin:0;padding:0;">ECE Solar</p>
<p class="MsoNormal" style="margin:0;padding:0;">Electrical Contracting Enterprises LLC</p>
<p class="MsoNormal" style="margin:0;padding:0;">3080 Stage Post Road Suite 107</p>
<p class="MsoNormal" style="margin:0;padding:0;">Bartlett, TN 38133</p>
<p class="MsoNormal" style="margin:0;padding:0;"> </p>
<p class="MsoNormal" style="margin:0;padding:0;">901-348-9230 ext 101 phone</p>
<p class="MsoNormal" style="margin:0;padding:0;">901-348-2192 fax</p>
<p class="MsoNormal" style="margin:0;padding:0;">901-289-6346 cell</p>
<p class="MsoNormal" style="margin:0;padding:0;"><a href="mailto:billturb@ece-llc.com"><span style="text-decoration: underline;"><span style="color: blue;">billturb@ece-llc.com</span></span></a></p>
<p class="MsoNormal" style="margin:0;padding:0;"> </p>
<p class="MsoNormal" style="margin:0;padding:0;">NABCEP Certified PV Installation Professional 032611-320</p>
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<p class="MsoNormal" style="margin:0;padding:0;margin-bottom: 12.0pt;">_______________________________________________<br /> List sponsored by Home Power magazine<br /><br />List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org"><span style="text-decoration: underline;"><span style="color: blue;">RE-wrenches@lists.re-wrenches.org</span></span></a><br /><br />Change email address & settings:<br /><a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org"><span style="text-decoration: underline;"><span style="color: blue;">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</span></span></a><br /><br />List-Archive: <a href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org"><span style="text-decoration: underline;"><span style="color: blue;">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</span></span></a><br /><br />List rules & etiquette:<br /><a href="http://www.re-wrenches.org/etiquette.htm"><span style="text-decoration: underline;"><span style="color: blue;">www.re-wrenches.org/etiquette.htm</span></span></a><br /><br />Check out participant bios:<br /><a href="http://www.members.re-wrenches.org"><span style="text-decoration: underline;"><span style="color: blue;">www.members.re-wrenches.org</span></span></a></p>
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<p class="MsoNormal" style="margin:0;padding:0;"><br /><br /><br />Sent from Finest Planet WebMail.</p>
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<p class="MsoNormal" style="margin:0;padding:0;margin-bottom: 12.0pt;">_______________________________________________<br />List sponsored by Home Power magazine<br /><br />List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org">RE-wrenches@lists.re-wrenches.org</a><br /><br />Change email address & settings:<br /><a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a><br /><br />List-Archive: <a href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a><br /><br />List rules & etiquette:<br /><a href="http://www.re-wrenches.org/etiquette.htm">www.re-wrenches.org/etiquette.htm</a><br /><br />Check out participant bios:<br /><a href="http://www.members.re-wrenches.org">www.members.re-wrenches.org</a></p>
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