<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=utf-8">
<META content="MSHTML 6.00.6001.18203" name=GENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=#ffffff>
<DIV><FONT face=Calibri>Searching for opinions.....is this "over
design"?</FONT></DIV>
<DIV><FONT face=Calibri>Designing small system (2.35kW). Customer uses gas for
heating. Typical A/C unit. I was thinking of biasing the tilt to summer
production for greater offset of summer demand (lat 31.6, proposing
18). No net metering in this part of the world. PVwatts shows a drop
of 2% /yr. in production , 5% higher production for A/C months.
Feedback?</FONT></DIV>
<DIV><FONT face=Calibri></FONT> </DIV>
<DIV><FONT face=Calibri> Also, this array will go on a carport. I
understand that windloading is actually greater for an open structure than one
with walls (another reason for lower tilt) - is there any one that can direct me
to data on finding out how much more? </FONT></DIV>
<DIV><FONT face=Calibri></FONT> </DIV>
<DIV><FONT face=Calibri>Lastly, what is a good avg. target derate factor for
Enphase inverters (real world)?</FONT></DIV>
<DIV><FONT face=Calibri></FONT> </DIV>
<DIV><FONT size=2>Holt E. Kelly<BR>Holtek Fireplace & Solar Products<BR>500
Jewell Dr.<BR>Waco TX. 76712<BR>254-751-9111<BR><A
href="http://www.holteksolar.com">www.holteksolar.com</A></FONT></DIV></BODY></HTML>