<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;">It used to be that Maui Solar could do it, my Maui is way out of date, what is needed is a simulation solar calculator and a TOU data set to drive with it<br>Darryl<br><br>--- On <b>Tue, 10/6/09, Mendocino Solar Service <i><msolar@mcn.org></i></b> wrote:<br><blockquote style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; padding-left: 5px;"><br>From: Mendocino Solar Service <msolar@mcn.org><br>Subject: Re: [RE-wrenches] orientation data<br>To: "RE-wrenches" <re-wrenches@lists.re-wrenches.org><br>Date: Tuesday, October 6, 2009, 4:58 PM<br><br><div id="yiv43137491"><base>I think what's needed is a way to analyze the financial output related to orientation, not just kwh. Unlike with off-grid systems, grid-tied is all about financial results. For a customer on TOU and net metering, the time value of the kwh produced is quite
important. A west facing array will have peak performance in the afternoon when the system can sell at the peak rate; even though it may produce fewer kwh overall, the value of them is much higher. The CSI's EPBB calculator, flawed as it may be, seems to take this into account when calculating the design factor on which the rebate is based. Anyone using a program that can take time and pricing into account too?<div><br><div>
<span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Palatino; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px;"><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Palatino; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px;"><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Palatino; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none;
white-space: normal; widows: 2; word-spacing: 0px;"><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Palatino; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px;"><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Palatino; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-indent: 0px; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px;"><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Palatino; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal;
text-indent: 0px; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px;"><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Palatino; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-indent: 0px; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px;"><div>Bruce Erickson</div><div>Mendocino Solar Service</div><div>707-937-1701</div><div>707-937-1741 fax</div><div>PO Box 1252</div><div>Mendocino, CA 95460</div><div> </div></span></span></span></span></span></span><span></span><br class="Apple-interchange-newline"><span><img id="dbbcbf16-a5c8-403d-a3ff-b149a82e128c" src="cid:1.1709137776@web51911.mail.re2.yahoo.com" height="132" width="135"></span><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Palatino;
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separate; color: rgb(0, 0, 0); font-family: Palatino; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px;"><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Palatino; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-indent: 0px; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px;"><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Palatino; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-indent: 0px; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px;"><span
class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Palatino; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-indent: 0px; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px;"><font class="Apple-style-span" face="Papyrus"><font class="Apple-style-span" color="#f2962d"><span class="Apple-style-span" style="color: rgb(242, 150, 45); font-family: Papyrus;"><span class="Apple-style-span" style="color: rgb(242, 150, 45); font-family: Papyrus;"><span class="Apple-style-span" style="color: rgb(242, 150, 45); font-family: Papyrus;"><br class="Apple-interchange-newline">"</span></span></span><span class="Apple-style-span" style="color: rgb(242, 150, 45); font-family: Papyrus;"><span class="Apple-style-span" style="color: rgb(242, 150, 45); font-family: Papyrus;"><span class="Apple-style-span" style="color:
rgb(242, 150, 45); font-family: Papyrus;">Serving the Solar System"</span></span></span></font></font><div><br class="khtml-block-placeholder"></div><div><br class="khtml-block-placeholder"></div><br class="Apple-interchange-newline"></span></span></span></span></span><br></span></span>
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<br><div><div>On Oct 6, 2009, at 10:53 AM, Ryan Mayfield wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><span class="Apple-style-span" style="border-collapse: separate; font-family: Palatino; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px;"><div lang="EN-US"><div class="Section1"><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman',serif;"><span style="font-family: 'Arial Narrow',sans-serif; color: rgb(31, 73, 125);">Nik,</span></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman',serif;"><span style="font-family: 'Arial Narrow',sans-serif; color: rgb(31, 73, 125);"> </span></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New
Roman',serif;"><span style="font-family: 'Arial Narrow',sans-serif; color: rgb(31, 73, 125);">Check out this tool on Solmetric’s website:<span class="Apple-converted-space"> </span><a rel="nofollow" target="_blank" href="http://www.solmetric.com/annualinsolation-us.html" style="color: blue; text-decoration: underline;">http://www.solmetric.com/annualinsolation-us.html</a></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman',serif;"><span style="font-family: 'Arial Narrow',sans-serif; color: rgb(31, 73, 125);"> </span></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman',serif;"><span style="font-family: 'Arial Narrow',sans-serif; color: rgb(31, 73, 125);">You can input your tilt and azimuth and it calculates the percentage loss from the site’s ideal orientation.</span></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New
Roman',serif;"><span style="font-family: 'Arial Narrow',sans-serif; color: rgb(31, 73, 125);"><br>Ryan</span></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman',serif;"><span style="font-family: 'Arial Narrow',sans-serif; color: rgb(31, 73, 125);"> </span></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman',serif;"><span style="font-family: 'Arial Narrow',sans-serif; color: rgb(31, 73, 125);"> </span></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman',serif;"><span style="font-family: 'Arial Narrow',sans-serif; color: rgb(31, 73, 125);"> </span></div><div style="border-style: solid none none; border-top: 1pt solid rgb(181, 196, 223); padding: 3pt 0in 0in;"><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman',serif;"><b><span style="font-size: 10pt; font-family:
Tahoma,sans-serif;">From:</span></b><span style="font-size: 10pt; font-family: Tahoma,sans-serif;"><span class="Apple-converted-space"> </span><a rel="nofollow" ymailto="mailto:re-wrenches-bounces@lists.re-wrenches.org" target="_blank" href="/mc/compose?to=re-wrenches-bounces@lists.re-wrenches.org" style="color: blue; text-decoration: underline;">re-wrenches-bounces@lists.re-wrenches.org</a><span class="Apple-converted-space"> </span>[mailto:re-wrenches-bounces@lists.re-wrenches.org]<span class="Apple-converted-space"> </span><b>On Behalf Of<span class="Apple-converted-space"> </span></b>Nicholas Ponzio, Building Energy<br><b>Sent:</b><span class="Apple-converted-space"> </span>Tuesday, October 06, 2009 10:38 AM<br><b>To:</b><span class="Apple-converted-space"> </span>RE-wrenches<br><b>Subject:</b><span class="Apple-converted-space"> </span>[RE-wrenches] orientation data</span></div></div><div style="margin: 0in 0in
0.0001pt; font-size: 12pt; font-family: 'Times New Roman',serif;"> </div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman',serif;">Hey Folks,</div><div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman',serif;"><br>Anybody have real data to compare productions for south-facing vs, west-facing PV array? PVWatts is only showing about a 7% derating for facing west. </div></div><div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman',serif;"> </div></div><div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman',serif;">Thanks,</div></div><div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman',serif;">Nik</div></div><div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman',serif;"> </div></div><p style="margin-right: 0in;
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