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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal>There\u2019s the inverter max output amps, that\u2019s it. 290 watts for either the 7 a or 7+ on the 208 VAC, they\u2019re equal for sure. So put on a 420 watt panel but don\u2019t expect to make a bit more production midday, all you get is a bit quicker ramp up in the AM and a bit longer 290w output in the evening. I\u2019d put something in the 320 to 350 w range on these micros, max. We are in a cooler climate too maybe than most, around the Reno Tahoe area. I have LG 310\u2019s on S280\u2019s that are seeing flattening on the Enlighten output graphs midday now in the spring. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>Chris Worcester<o:p></o:p></p><p class=MsoNormal>Solar Wind Works<o:p></o:p></p><p class=MsoNormal>NABCEP PV Installation Professional<o:p></o:p></p><p class=MsoNormal>Cell 530-448-9692<o:p></o:p></p><p class=MsoNormal>www.solarwindworks.com<o:p></o:p></p><p class=MsoNormal>chris@solarwindworks.com<o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b>From:</b> RE-wrenches <re-wrenches-bounces@lists.re-wrenches.org> <b>On Behalf Of </b>Jay<br><b>Sent:</b> Wednesday, March 03, 2021 12:46 PM<br><b>To:</b> RE-wrenches <re-wrenches@lists.re-wrenches.org><br><b>Subject:</b> Re: [RE-wrenches] Enphase IQ7A 3 phase limitations<o:p></o:p></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>Emphase has a white paper showing production vs module size and locations around the country.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I don\u2019t know if it\u2019s more accurate than pv watts but you might check it out. <o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Jay<o:p></o:p></p></div><div><p class=MsoNormal>Peltz power. <o:p></o:p></p></div><div><p class=MsoNormal><br><br><o:p></o:p></p><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><p class=MsoNormal style='margin-bottom:12.0pt'>On Mar 3, 2021, at 12:13 PM, Jason Szumlanski <<a href="mailto:jason@floridasolardesigngroup.com">jason@floridasolardesigngroup.com</a>> wrote:<o:p></o:p></p></blockquote></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div><p class=MsoNormal>\ufeff<o:p></o:p></p><div><div><div><p class=MsoNormal><span style='font-family:"Arial",sans-serif'>I'm wondering how accurate the DC to AC ratio is when using PVWATTS. I did a quick PVWATTS analysis at my local area using a typical commercial roof tilt and found that using a 420W module on an IQ7A versus a 385W module on an IQ7+ yields almost identical results. The 420W module has 1% less annual production at to the 145% ratio compared to the 132% ratio with the 385W module.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial",sans-serif'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial",sans-serif'>Given that, I can't imagine why anyone would use the IQ7A versus the IQ7+ on a 208V system. Why incur the additional cost if the AC output current is identical for both inverters? <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial",sans-serif'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial",sans-serif'>If PVWATTS is right, I guess it's a non-issue in my local area, but it may vary in other locations where clipping is more common. The heat here results in little clipping at a 132% ratio here, and I guess at 145% the morning and afternoon advantages largely outweigh the mid-day clipping increase.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial",sans-serif'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial",sans-serif'>Jason Szumlanski<o:p></o:p></span></p></div><div><div><div><div><div><div><div><div><div><p class=MsoNormal align=center style='text-align:center'><b><o:p> </o:p></b></p></div></div></div></div></div></div></div></div></div><p class=MsoNormal><o:p> </o:p></p></div><p class=MsoNormal><br><img border=0 width=1 height=1 style='width:.0104in;height:.0104in' id="_x0000_i1025" src="https://mailtrack.io/trace/mail/5eb252f6e6d870638e7a0fd58093488ac94a581b.png?u=1613865"><o:p></o:p></p><div><div><p class=MsoNormal>On Tue, Mar 2, 2021 at 10:00 AM Jason Szumlanski <<a href="mailto:jason@floridasolardesigngroup.com">jason@floridasolardesigngroup.com</a>> wrote:<o:p></o:p></p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><div><p class=MsoNormal>I was surprised to learn that the IQ7A is limited to 290 W continuous at 208 volts. That pretty much puts Enphase out of the running for light commercial jobs with new high-powered 72 cell panels. Any thoughts on this?<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Jason<o:p></o:p></p></div></div></blockquote></div></div><p class=MsoNormal style='margin-bottom:12.0pt'>_______________________________________________<br>List sponsored by Redwood Alliance<br><br>List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org">RE-wrenches@lists.re-wrenches.org</a><br><br>Change listserver 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>There are two list archives for searching. 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