<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>Marco,</div><div>We installed our first Enphase system in December 2009, and our last in December 2011, when their high failure rate became a problem. (Currently 10%+ for us). We were only installing the Enphase units on sites with shading issues, as a means to mitigate conditions. </div><div> After moving away from Enphase, we selected SolarEdge as the solution of choice for those sites. The installation labor is comparable to the Enphase solution, separate device under each module. One clear advantage is that there are no custom trunk cables required, just the standard USE-2 cable and connectors. </div><div> Our field experience has been better than expected production, and 1.4% failure rate. In December we installed a SolarEdge system just down the street from a site where we had previously installed an SMA string inverter on an unshaded site. The SolarEdge system has some shading. Both arrays have roughly the same orientation and pitch. To date the SolarEdge system with shading continues to out produce the unshaded SMA system by 5-8% kWh/kWp. </div><div><br></div><div>I agree with your intuition on fewer components making a better solution and "IF" there is a reliable solution that accomplishes this that would be preferred. </div><div> I just priced out the Mage AC module (SolarBridge technology) side by side with the Mage - SolarEdge combination and the later is less expensive equipment wise but I think that advantage would be erased by labor savings on the install. </div><div> All that said I'm still a fan of the old fashioned string inverter solution unless the site shading conditions and or array geometry require an alternate solution. </div><div><br></div><div>Cheers<div>Carl Adams</div></div><div>SunRock Solar</div><div><br>On Jun 14, 2013, at 9:15 PM, "Marco Mangelsdorf" <<a href="mailto:marco@pvthawaii.com">marco@pvthawaii.com</a>> wrote:<br><br></div><div>
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<p class="MsoNormal"><span style="color:#1F497D">I\u2019ve been educating myself
on the Solar Edge product v. using micro inverters. If you click on the
link below, you can read the pitch that they make for using their product over
micros. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Any opinions out there on how
convincing their strategy is? As well as any experience in the field with
the product?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Intuitively, it seems to me that
if you can accomplish what you need to accomplish (DC power from the PV mod to
usable AC power) with fewer parts (as in a micro inverter instead of a DC-DC
converter and a separate inverter), then that approach makes more sense.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><a href="http://www.solaredge.us/groups/us/technology/microinverters">http://www.solaredge.us/groups/us/technology/microinverters</a><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">marco<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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