<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><P>Hello Jay,</P>
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<P>Sounds like something is wrong other than Unisolar vs. crystalline. All things being equal, the Unisolar should produce more kWh per kW than crystalline. Questions:</P>
<P>1. What modules and how many of each?</P>
<P>2. What inverter or inverters?</P>
<P>3. Geographic location?</P>
<P>4. Array azimuth and tilt?</P>
<P> </P>
<P>Best regards,</P>
<P>Joel Davidson</P>
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<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, times, serif">----- Original Message ----<BR>From: jay peltz <jay@asis.com><BR>To: RE-wrenches <re-wrenches@lists.re-wrenches.org><BR>Sent: Friday, October 31, 2008 8:27:19 AM<BR>Subject: Re: [RE-wrenches] crystalline VS uni-solar<BR><BR>Hi Geoff,
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<DIV>In regards to the performance between Unisolar and crystalline, there is a side by side ( same watts, batteryless intertie with metering) installation up here on the North coast of California, and the the Unisolar is the constant under-performer. This includes cloudy, sunny, warm, cold weather.</DIV>
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<DIV>I have seen nothing in the field to support the Unisolar claims about better performance in low light etc. That said, they do work better in very hot conditions, if thats what you have.</DIV>
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<DIV>jay</DIV>
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<DIV>peltz power</DIV>
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<DIV>On Oct 31, 2008, at 8:08 AM, Geoff Greenfield wrote:</DIV><BR class=Apple-interchange-newline>
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<DIV style="MARGIN: 0px">As a follow up to my uni-solar post (and thanks to all who provided feedback), I have a second request:</DIV>
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<DIV style="MARGIN: 0px">Any references to recent side-by side "shoot-outs" between Unisolar and conventional crystaline PV? Scientific studies? Your own wrench thoughts?</DIV>
<P style="MARGIN: 0px"> </P>
<DIV style="MARGIN: 0px">I am more and more often encountering confused customers that are considering unisolar systems at zero-tilt (we are at 40 degrees N), with plenty of partial shading, after getting a pitch about all sorts of advantages of Uni-Solar. I think that this product has it's role and I occasionally sell it... But I am frustrated when I truly believe I can deliver a better net energy production with a tilted crystalline solution (avoiding the shaded areas). <SPAN class=Apple-converted-space> </SPAN><BR></DIV>
<DIV>For a brighter energy future,<BR><BR>Geoff Greenfield<BR>Founder and CEO<BR><FONT size=4><STRONG>Third Sun Solar & Wind Power Ltd.<BR></STRONG></FONT>340 West State Street, Unit 25<BR>Athens, OH 45701<BR><BR>740.597.3111 Fax 740.597.1548<BR><A href="http://www.third-sun.com/" target=_blank rel=nofollow>www.Third-Sun.com</A><BR><BR><EM><FONT size=4>Clean Energy - Expertly Installed<BR></FONT></EM><BR><BR></DIV>_______________________________________________<BR>List sponsored by Home Power magazine<BR><BR>List Address:<SPAN class=Apple-converted-space> </SPAN><A href="mailto:RE-wrenches@lists.re-wrenches.org" target=_blank rel=nofollow ymailto="mailto:RE-wrenches@lists.re-wrenches.org">RE-wrenches@lists.re-wrenches.org</A><BR><BR>Options & settings:<BR><A href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org" target=_blank
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