<div dir="ltr"><div>Hi Greg,<br><br></div>Thanks for the inquiry. See my answers to your questions below. I'll reach out to you directly about any other questions you may have.<br><br><div class="im">
<p>1. Re: Shipping costs – Does Enphase pay for the return
shipping of the defective product, in other words does Enphase use the
replace-return system where the same box is returned and is
pre-labeled/pre-paid?</p>
</div><p><b>Enphase</b>--When a unit is replaced, the box\ that
contained the replacement unit has a return shipping label provided from
Enphase. Just put in the defective unit and then alert the carrier for
pickup.</p><div class="im">
<p><br></p>
<p>2. Re: Installer labor Compensation – I think the above
warranty is clearly ‘limited’, in other words, non-existent, vis-à-vis
the installer. Other manufacturers such as SMA, Power-One, Fronius, and
SolarEdge offer ‘installer-friendly’ travel/labor compensation to at
least cover their time to deal with the warranty. Here it is clear that
Enphase is ‘passing the buck’ to installers to cover
travel/labor/handling costs for the Enphase defective product. </p>
</div><p><b>Enphase</b>--Like our competitors, Enphase provides compensation for an installers time replacing a unit at a site.</p><p></p><br></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Wed, Jun 19, 2013 at 1:08 PM, Greg Seelhorst <span dir="ltr"><<a href="mailto:gseelhorst@gmail.com" target="_blank">gseelhorst@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div link="blue" vlink="purple" lang="EN-US"><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Nick –<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Thanks for your answers and clarification on the GFCI clearing remotely. That is a nice feature, but probably not nice for gov’t installations who do not like integrators/installers/manufacturers ‘logging-in’ to their sites and doing anything remotely. <u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">So, Re: Enphase Limited Warranty reads verbatim:<u></u><u></u></span></p>
<p style="margin-left:.75in"><u></u><span style="font-size:10.0pt;font-family:Symbol"><span>·<span style="font:7.0pt "Times New Roman""> </span></span></span><u></u><i><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">The Limited Warranty covers a replacement unit to replace the Defective Product, but does not include labor costs related to (1) un-installing the Defective Product or (2) if applicable, re-installing a repaired or replacement product. To the extent applicable, the Limited Warranty also covers the costs of shipping a repaired or replacement product from Enphase, via a non-expedited freight carrier selected by Enphase, to locations where we have approved our microinverters for installation as listed on our website at : <a href="http://www.enphase.com/warranty" target="_blank">http://www.enphase.com/warranty</a><u></u><u></u></span></i></p>
<p style="margin-left:.75in"><i><span style="font-size:10.0pt;font-family:"Arial","sans-serif""><u></u> <u></u></span></i></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Questions/clarifications:<u></u><u></u></span></p>
<p><u></u><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><span>1.<span style="font:7.0pt "Times New Roman""> </span></span></span><u></u><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Re: Shipping costs – Does Enphase pay for the return shipping of the defective product, in other words does Enphase use the replace-return system where the same box is returned and is pre-labeled/pre-paid?<u></u><u></u></span></p>
<p><u></u><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><span>2.<span style="font:7.0pt "Times New Roman""> </span></span></span><u></u><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Re: Installer labor Compensation – I think the above warranty is clearly ‘limited’, in other words, non-existent, vis-à-vis the installer. Other manufacturers such as SMA, Power-One, Fronius, and SolarEdge offer ‘installer-friendly’ travel/labor compensation to at least cover their time to deal with the warranty. Here it is clear that Enphase is ‘passing the buck’ to installers to cover travel/labor/handling costs for the Enphase defective product. <u></u><u></u></span></p>
<p><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">On that note, does Enphase have any expectations of ‘stepping-up’ their travel/labor product replacement compensation package for installers? <u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">I think that we have enough RE-Wrenches installers curious enough to see your responses, so feel free to respond with your answers to the Wrenches list.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Cheers,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Greg Seelhorst<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">NABCEP Certified PV Installation Professional™<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> <u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">POSITIVE ENERGY, Inc.<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">510 S. Main Street<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Las Cruces, New Mexico 88001<br>Cell: <a href="tel:575-650-1883" value="+15756501883" target="_blank">575-650-1883</a><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Office: <a href="tel:575-524-2030" value="+15755242030" target="_blank">575-524-2030</a><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">FAX: <a href="tel:575-915-1788" value="+15759151788" target="_blank">575-915-1788</a><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> <u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><a href="mailto:gs@PositiveEnergySolar.com" target="_blank"><span style="color:#1f497d;text-decoration:none">gs@PositiveEnergySolar.com</span></a><br>
<a href="http://www.positiveenergysolar.com" target="_blank"><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:#1f497d;text-decoration:none">www.positiveenergysolar.com</span></a><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<div style="border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0in 0in 0in"><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Nick Soleil [<a href="mailto:nsoleil@enphaseenergy.com" target="_blank">mailto:nsoleil@enphaseenergy.com</a>] <br>
<b>Sent:</b> Tuesday, June 18, 2013 1:11 PM<br><b>To:</b> <a href="mailto:gseelhorst@gmail.com" target="_blank">gseelhorst@gmail.com</a>; RE-wrenches</span></p><div><div class="h5"><br><b>Subject:</b> Re: [RE-wrenches] Solar Edge v. micro inverters<u></u><u></u></div>
</div><p></p></div><div><div class="h5"><p class="MsoNormal"><u></u> <u></u></p><div><div><div><p class="MsoNormal">HI Greg,<br><br>Thank you for your thoughtful analysis and feedback. A lot of what you are saying is accurate, but there are a number of clarifications that I'd like to make regarding our product offering. I'll begin by answering your direct questions.<br>
<br><span style="font-size:10.0pt;color:#1f497d">1.</span><span style="font-size:7.0pt;color:#1f497d"> </span><span style="font-size:10.0pt;color:#1f497d">Arc-fault failures were ‘repairable’ remotely via the online monitoring, but only 3 times. Any update on this?<br>
</span><br>- I believe that your question about arc-fault protection is actually regarding GFI protection. As per NEC 690.11 arc fault protection is not required for systems less than 80volts, so this does not apply to Enphase microinverters. GFCI faults can be cleared from the system page in Enlighten.<u></u><u></u></p>
<p><span style="font-size:10.0pt;color:#1f497d">2.</span><span style="font-size:7.0pt;color:#1f497d"> </span><span style="font-size:10.0pt;color:#1f497d">When is Enphase coming out with a new higher wattage micro-inverter?</span><u></u><u></u></p>
<p>- Stay tuned on this one. Keep in mind that the output power of a microinverter is in AC, whereas the output power of an optimizer is DC, which occurs before the conversion to AC. That means that the optimizer must be sized larger than a microinverter. For example, a 250 watt optimizer on a 96% efficient inverter will need to be 10 watts larger than a comparable microinverter. Comparing the wattage of an optimizer to a microinverter is not apples to apples.<u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#1f497d">3.</span><span style="font-size:7.0pt;color:#1f497d"> </span><span style="font-size:10.0pt;color:#1f497d">What is Enphase’s compensation for warranty calls, travel and labor these days?</span><u></u><u></u></p>
</div><p class="MsoNormal" style="margin-bottom:12.0pt"><br>- Our official warranty and up time guarantee policy can be viewed at; <a href="http://enphase.com/warranty/" target="_blank">http://enphase.com/warranty/</a>.<u></u><u></u></p>
</div><div><p class="MsoNormal">Also, please note that the old EMU is now called Envoy, and we stopped charging for the monitoring service in June of 2011. Our monitoring system provides module level data, but to clarify, it also reports system level data, too.<u></u><u></u></p>
</div><div><p class="MsoNormal"><u></u> <u></u></p></div><p class="MsoNormal"><u></u> <u></u></p><div><div><div><div><div><p class="MsoNormal"><u></u> <u></u></p></div></div></div></div></div></div><div><p class="MsoNormal" style="margin-bottom:12.0pt">
<u></u> <u></u></p><div><p class="MsoNormal">On Sat, Jun 15, 2013 at 8:57 AM, Greg Seelhorst <<a href="mailto:gseelhorst@gmail.com" target="_blank">gseelhorst@gmail.com</a>> wrote:<u></u><u></u></p><div><div><p class="MsoNormal">
<span style="font-size:10.0pt;color:#1f497d">Marco –</span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:10.0pt;color:#1f497d"> </span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:10.0pt;color:#1f497d">As we are a SunPower dealer, there is really no question on which product to use for the 96-cell module (which we have a preference for over the 72-cell), as Enphase does not yet have a 300w or 350w micro-inverter yet. To qualify our comments, have installed 14 SolarEdge systems and 10 Enphase systems to date.</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#1f497d"> </span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:10.0pt;color:#1f497d">From our experience in New Mexico, we have branches from Taos to Las Cruces, but the optimizer v. micro-inverter choice is more important when the heat factor comes into play, as in Albuquerque and Las Cruces. The most important advantage that I have seen is the ‘wider operating capacity’ of Optimizers and reliability of the optimizer/micro-inverter factors. As all Wrenches on this list know, even if there is warranty labor compensation, a warranty call has its opportunity costs, as well. I have outlined below my likes and dislikes of SolarEdge v. Enphase and most of them appear in the video on the link you provided, as well.</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#1f497d"> </span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:10.0pt;color:#1f497d">SOLAREDGE </span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:10.0pt;color:#1f497d"> Likes – </span><u></u><u></u></p>
<p class="MsoNormal" style="margin-left:.5in;text-indent:.5in"><span style="font-size:10.0pt;color:#1f497d">Power Production - Better Power production in early mornings and late afternoons, give about 2.5-4% better AC production (at the REC meter!) than Enphase due to wider operating capacity of SolarEdge Optimizer</span><u></u><u></u></p>
<p class="MsoNormal" style="margin-left:.5in;text-indent:.5in"><span style="font-size:10.0pt;color:#1f497d">Free monitoring, can upload photos of customer site on monitoring portal, less AC wiring for gateways/dataloggers</span><u></u><u></u></p>
<p class="MsoNormal" style="margin-left:.5in;text-indent:.5in"><span style="font-size:10.0pt;color:#1f497d">DC powerline coms for monitoring use dedicated line from optimizers to inverter, therefore, no potential for ‘noise’ to disrupt the communication</span><u></u><u></u></p>
<p class="MsoNormal" style="margin-left:.5in;text-indent:.5in"><span style="font-size:10.0pt;color:#1f497d">No extra ‘trunk cables’ to buy</span><u></u><u></u></p><p class="MsoNormal" style="margin-left:.5in;text-indent:.5in">
<span style="font-size:10.0pt;color:#1f497d">Lower cost/watt</span><u></u><u></u></p><p class="MsoNormal" style="margin-left:.5in;text-indent:.5in"><span style="font-size:10.0pt;color:#1f497d">Safe when in Open Circuit Voltage, where each Optimizer produces 1 volt until it is in </span><u></u><u></u></p>
<p class="MsoNormal" style="margin-left:.5in;text-indent:.5in"><span style="font-size:10.0pt;color:#1f497d">Can use with SunPower 96-cell modules</span><u></u><u></u></p><p class="MsoNormal" style="margin-left:.5in;text-indent:.5in">
<span style="font-size:10.0pt;color:#1f497d">Can now use star washers from optimizer to rail connection to eliminate need for #6 Bare Cu in exposed conditions</span><u></u><u></u></p><p class="MsoNormal" style="margin-left:.5in;text-indent:.5in">
<span style="font-size:10.0pt;color:#1f497d">$125/per warranty call, to cover travel and labor</span><u></u><u></u></p><p class="MsoNormal" style="margin-left:.5in;text-indent:.5in"><span style="font-size:10.0pt;color:#1f497d">25yr Optimizer warranty</span><u></u><u></u></p>
<p class="MsoNormal" style="margin-left:.5in;text-indent:.5in"><span style="font-size:10.0pt;color:#1f497d">System cost decrease for increased system size</span><u></u><u></u></p><p class="MsoNormal" style="margin-left:.5in;text-indent:.5in">
<span style="font-size:10.0pt;color:#1f497d">Arc-Fault compliant</span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:10.0pt;color:#1f497d"> Dislikes –</span><u></u><u></u></p><p class="MsoNormal">
<span style="font-size:10.0pt;color:#1f497d"> SolarEdge stresses that a 25yr warranty can be ‘extended’, but is not standard – The 12yr warranty is a challenge talking point when customer is more concerned with this, than the viability of the company who is installing them</span><u></u><u></u></p>
<p class="MsoNormal" style="margin-left:.5in;text-indent:.5in"><span style="font-size:10.0pt;color:#1f497d">Failure rates of new products released ‘too early’ and are quite high – we experienced close to 40% failure rate of Gen1 inverter due to faulty I/O switch and motherboards which caused the inverter to ‘stay asleep’ when it appeared that there was harmonic ‘noise’ inside the inverter</span><u></u><u></u></p>
<p class="MsoNormal" style="margin-left:.5in;text-indent:.5in"><span style="font-size:10.0pt;color:#1f497d">Additional inverter equipment required to ‘interconnect’ and find a place for in a garage that has a lot of clutter</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#1f497d"> NEC Req’d Label calculations are a bit fuzzy, for the Imp and Isc conditions, may have initial questions from the AHJ. </span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#1f497d"> 7000w inverter output is only rated to produce 6000w at 240 Vac, although allowable DC inputs are higher for the 7000 (8250</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#1f497d"> 400w Optimizer is still a ‘new product’ and is having higher failure rates than 250w and 300w optimizers</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#1f497d"> Powerline adapter not included and will be an extra purchase</span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:10.0pt;color:#1f497d"> </span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#1f497d">ENPHASE</span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:10.0pt;color:#1f497d"> Likes </span><u></u><u></u></p><p class="MsoNormal">
<span style="font-size:10.0pt;color:#1f497d"> Arc-fault compliant</span><u></u><u></u></p><p class="MsoNormal" style="margin-left:.5in;text-indent:.5in"><span style="font-size:10.0pt;color:#1f497d">Blog is great and answers a lot of technical questions without requiring to call tech support, Array of the week installs</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#1f497d"> MAGE solar is offering a 30yr warranty on the module/Enphase AC module product…interesting </span><u></u><u></u></p><p class="MsoNormal">
<span style="font-size:10.0pt;color:#1f497d"> Safe when not connected (UL 1741 req’d)</span><u></u><u></u></p><p class="MsoNormal" style="text-indent:.5in"><span style="font-size:10.0pt;color:#1f497d">Dislikes </span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#1f497d"> Energy Clipping on modules above 250w range in early years of production</span><u></u><u></u></p><p class="MsoNormal" style="margin-left:.5in;text-indent:.5in">
<span style="font-size:10.0pt;color:#1f497d">EMU is extra and is not provided with Enphase purchase </span><u></u><u></u></p><p class="MsoNormal" style="margin-left:.5in;text-indent:.5in"><span style="font-size:10.0pt;color:#1f497d">Lots of electrolytic capacitor electronics on the roof, in the heat, for a number of years</span><u></u><u></u></p>
<p class="MsoNormal" style="margin-left:.5in;text-indent:.5in"><span style="font-size:10.0pt;color:#1f497d">High Failure rates of m190 product</span><u></u><u></u></p><p class="MsoNormal" style="margin-left:.5in;text-indent:.5in">
<span style="font-size:10.0pt;color:#1f497d">Max power limited to 215w micro-inverter at present, compared to SolarEdge’s 400w Optimizer for a single module </span><u></u><u></u></p><p class="MsoNormal" style="margin-left:.5in;text-indent:.5in">
<span style="font-size:10.0pt;color:#1f497d">Inverter AC output sizing is dependent on the micro-inverter size, whereas SolarEdge has one single inverter, this will come more in to play as Enphase increases micro-inverter sizing and will need to size Module to micro-inverter appropriately in larger systems </span><u></u><u></u></p>
<p class="MsoNormal" style="margin-left:.5in;text-indent:.5in"><span style="font-size:10.0pt;color:#1f497d">Greater Voltage drop in longer homeruns, requires wire size increase</span><u></u><u></u></p><p class="MsoNormal">
<span style="font-size:10.0pt;color:#1f497d"> Online reporting is <i>dicey</i>, at times on some installations depending upon local harmonic distortions</span><u></u><u></u></p><p class="MsoNormal">
<span style="font-size:10.0pt;color:#1f497d"> Online monitoring only gives production ‘at the micro-inverter’ level. </span><u></u><u></u></p><p class="MsoNormal" style="margin-left:.5in;text-indent:.5in">
<span style="font-size:10.0pt;color:#1f497d">Note: This last comment is inherent in the product, so as a rule, always refer to Utility Revenue Meter at interconnection instead of online production values to be objective</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#1f497d"> </span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:10.0pt;color:#1f497d">Questions to Wrenches or Enphase/SolarEdge reps on this list:</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#1f497d"> </span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:10.0pt;color:#1f497d">SolarEdge (John B. and Marv D.)</span><u></u><u></u></p><p><span style="font-size:10.0pt;color:#1f497d">1.</span><span style="font-size:7.0pt;color:#1f497d"> </span><span style="font-size:10.0pt;color:#1f497d">NEC req’d labels for inverter – Can we assume 350 Vmp and 500 Voc to calculate Imp and Max Isc values?</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#1f497d"> </span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:10.0pt;color:#1f497d">Enphase (Nick S.)</span><u></u><u></u></p><p><span style="font-size:10.0pt;color:#1f497d">1.</span><span style="font-size:7.0pt;color:#1f497d"> </span><span style="font-size:10.0pt;color:#1f497d">Arc-fault failures were ‘repairable’ remotely via the online monitoring, but only 3 times. Any update on this?</span><u></u><u></u></p>
<p><span style="font-size:10.0pt;color:#1f497d">2.</span><span style="font-size:7.0pt;color:#1f497d"> </span><span style="font-size:10.0pt;color:#1f497d">When is Enphase coming out with a new higher wattage micro-inverter?</span><u></u><u></u></p>
<p><span style="font-size:10.0pt;color:#1f497d">3.</span><span style="font-size:7.0pt;color:#1f497d"> </span><span style="font-size:10.0pt;color:#1f497d">What is Enphase’s compensation for warranty calls, travel and labor these days?</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#1f497d"> </span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:10.0pt;color:#1f497d">Either</span><u></u><u></u></p><p><span style="font-size:10.0pt;color:#1f497d">1.</span><span style="font-size:7.0pt;color:#1f497d"> </span><span style="font-size:10.0pt;color:#1f497d">Which is better, one-on-one, in similar shaded situations</span><u></u><u></u></p>
<p><span style="font-size:10.0pt;color:#1f497d">2.</span><span style="font-size:7.0pt;color:#1f497d"> </span><span style="font-size:10.0pt;color:#1f497d">Are there any reports of either products reducing effects caused by a higher Voltage Induced Degradation (I don’t know if this term exists [as opposed to PID]) for higher 600 or 1000v systems of modules operating at higher voltages per string</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#1f497d"> </span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:10.0pt;color:#1f497d">Congratulations to both Enphase and SolarEdge on their product development. These products give us hope for higher performance and I expect to see an extended life of solar panels, due to these module level production units and will help hold module manufacturers accountable. Congratulations to SolarEdge on their ‘Gangnam Style’ video, as well!</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#1f497d"> </span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:10.0pt;color:#1f497d">Regards,</span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:10.0pt;color:#1f497d"> </span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#1f497d"> </span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1f497d">Greg Seelhorst</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1f497d">NABCEP Certified PV Installation Professional</span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1f497d">Las Cruces, NM</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1f497d"> </span><span style="font-size:10.0pt;color:#1f497d"> </span><u></u><u></u></p><p class="MsoNormal"><span style="color:#1f497d"> </span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:#1f497d"> </span><u></u><u></u></p><div><div style="border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0in 0in 0in"><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> <a href="mailto:re-wrenches-bounces@lists.re-wrenches.org" target="_blank">re-wrenches-bounces@lists.re-wrenches.org</a> [mailto:<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org" target="_blank">re-wrenches-bounces@lists.re-wrenches.org</a>] <b>On Behalf Of </b>SwingJunkie<br>
<b>Sent:</b> Saturday, June 15, 2013 5:25 AM<br><b>To:</b> RE-wrenches<br><b>Subject:</b> Re: [RE-wrenches] Solar Edge v. micro inverters</span><u></u><u></u></p></div></div><div><div><p class="MsoNormal"> <u></u><u></u></p>
<div><p class="MsoNormal">Marco,<u></u><u></u></p></div><div><p class="MsoNormal">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. <u></u><u></u></p>
</div><div><p class="MsoNormal"> 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. <u></u><u></u></p>
</div><div><p class="MsoNormal"> 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. <u></u><u></u></p>
</div><div><p class="MsoNormal"> <u></u><u></u></p></div><div><p class="MsoNormal">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. <u></u><u></u></p>
</div><div><p class="MsoNormal"> 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. <u></u><u></u></p>
</div><div><p class="MsoNormal"> 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. <u></u><u></u></p>
</div><div><p class="MsoNormal"> <u></u><u></u></p></div><div><p class="MsoNormal">Cheers<u></u><u></u></p><div><p class="MsoNormal">Carl Adams<u></u><u></u></p></div></div><div><p class="MsoNormal">SunRock Solar<u></u><u></u></p>
</div><div><p class="MsoNormal" style="margin-bottom:12.0pt"><br>On Jun 14, 2013, at 9:15 PM, "Marco Mangelsdorf" <<a href="mailto:marco@pvthawaii.com" target="_blank">marco@pvthawaii.com</a>> wrote:<u></u><u></u></p>
</div><div><p class="MsoNormal"><span style="color:#1f497d">I’ve 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. </span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:#1f497d"> </span><u></u><u></u></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?</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:#1f497d"> </span><u></u><u></u></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.</span><u></u><u></u></p>
<p class="MsoNormal"><span style="color:#1f497d"> </span><u></u><u></u></p><p class="MsoNormal"><a href="http://www.solaredge.us/groups/us/technology/microinverters" target="_blank">http://www.solaredge.us/groups/us/technology/microinverters</a><u></u><u></u></p>
<p class="MsoNormal"><span style="color:#1f497d"> </span><u></u><u></u></p><p class="MsoNormal"><span style="color:#1f497d">thanks,</span><u></u><u></u></p><p class="MsoNormal"><span style="color:#1f497d">marco</span><u></u><u></u></p>
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<b><span style="font-size:14.0pt">Nick Soleil</span></b><u></u><u></u></p><p style="margin:0in;margin-bottom:.0001pt"><b>Field Applications Engineer</b><u></u><u></u></p><p style="margin:0in;margin-bottom:.0001pt"><b><span style="color:#e36c0a">Enphase Energy</span></b><u></u><u></u></p>
<p style="margin:0in;margin-bottom:.0001pt">Mobile: <a href="tel:%28707%29%20321-2937" value="+17073212937" target="_blank">(707) 321-2937</a><u></u><u></u></p><p style="margin:0in;margin-bottom:.0001pt"><u></u> <u></u></p>
<p style="margin:0in;margin-bottom:.0001pt"><a href="http://www.enphase.com/commercial?utm_source=email&utm_medium=sig&utm_campaign=Comm2012" target="_blank"><b><span style="font-family:"Arial","sans-serif"">Enphase Commercial Solar.</span></b><span style="font-family:"Arial","sans-serif""> </span><b><span style="font-family:"Arial","sans-serif";color:#ff6600">Limitless.</span></b></a><u></u><u></u></p>
<p style="margin:0in;margin-bottom:.0001pt"><a href="http://www.enphase.com/commercial?utm_source=email&utm_medium=sig&utm_campaign=Comm2012" target="_blank"><b><span style="font-family:"Arial","sans-serif";color:#ff6600"><br>
</span></b></a><u></u><u></u></p><p style="margin:0in;margin-bottom:.0001pt">1420 North McDowell<u></u><u></u></p><p style="margin:0in;margin-bottom:.0001pt">Petaluma, CA 94954<u></u><u></u></p><p style="margin:0in;margin-bottom:.0001pt">
<a href="http://www.enphaseenergy.com/" target="_blank">www.enphase.com</a><u></u><u></u></p><p style="margin:0in;margin-bottom:.0001pt">P: <a href="tel:%28707%29%20763-4784%20x7267" value="+17077634784" target="_blank">(707) 763-4784 x7267</a><u></u><u></u></p>
<p style="margin:0in;margin-bottom:.0001pt">F: <a href="tel:%28707%29%20763-0784" value="+17077630784" target="_blank">(707) 763-0784</a><u></u><u></u></p><p style="margin:0in;margin-bottom:.0001pt">E: <a href="mailto:nsoleil@enphaseenergy.com" target="_blank">nsoleil@enphaseenergy.com</a><u></u><u></u></p>
<p><span style="font-size:11.0pt;font-family:"Garamond","serif";color:#1f497d"><img src="cid:image001.jpg@01CE6CEC.45933500" alt="nabcep logo" border="0" height="38" width="96"></span><span style="font-size:11.0pt;font-family:"Garamond","serif";color:#1f497d"> Certified Solar PV Installer #03262011-300</span><u></u><u></u></p>
<p>“Don’t get me wrong: I love nuclear energy! It’s just that I prefer fusion to fission. And it just so happens that there’s an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it’s wireless! .” <u></u><u></u></p>
<p>- William McDonough <u></u><u></u></p></div><pre><u></u> <u></u></pre><pre><u></u> <u></u></pre></div></div><pre>This email message is for the sole use of the intended recipient(s) and may contain confidential and/or privileged information. If you are not an intended recipient, you may not review, use, copy, disclose or distribute this message. If you received this message in error, please contact the sender by reply email and destroy all copies of the original message. <u></u><u></u></pre>
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<br></blockquote></div><br><br clear="all"><br>-- <br><p style="margin:0in 0in 0.0001pt"><span style="font-size:14pt">Cordially,</span></p><p style="margin:0in 0in 0.0001pt"><b><span style="font-size:14pt">Nick Soleil</span></b><span style="font-size:14pt"></span></p>
<p style="margin:0in 0in 0.0001pt"><b><span>Field Applications Engineer<br></span></b></p>
<p style="margin:0in 0in 0.0001pt"><b><span style="color:rgb(227,108,10)">Enphase Energy</span></b></p><p style="margin:0in 0in 0.0001pt"><span></span><span>Mobile: <a value="+17073212937">(707) 321-2937</a></span></p>
<p style="margin:0in 0in 0.0001pt"><br><b><span style="color:rgb(227,108,10)"></span></b></p><p style="margin:0in 0in 0.0001pt"><a href="http://www.enphase.com/commercial?utm_source=email&utm_medium=sig&utm_campaign=Comm2012" target="_blank"><font><span style="font-family:Arial,sans-serif"><b>Enphase Commercial Solar.</b> <b><span style="color:rgb(255,102,0)">Limitless.</span></b></span></font></a></p>
<p style="margin:0in 0in 0.0001pt"><a href="http://www.enphase.com/commercial?utm_source=email&utm_medium=sig&utm_campaign=Comm2012" target="_blank"><font><span style="font-family:Arial,sans-serif"><b><span style="color:rgb(255,102,0)"><br>
</span></b></span></font></a></p>
<p style="margin:0in 0in 0.0001pt"><span>1420 North McDowell<br></span></p>
<p style="margin:0in 0in 0.0001pt"><span>Petaluma, CA
94954</span></p><p style="margin:0in 0in 0.0001pt"><span></span></p>
<p style="margin:0in 0in 0.0001pt"><span><a href="http://www.enphaseenergy.com/" target="_blank">www.enphase.com</a></span></p>
<p style="margin:0in 0in 0.0001pt"><span>P: (707)
763-4784 x7267</span></p>
<p style="margin:0in 0in 0.0001pt"><span>F: (707)
763-0784</span></p>
<p style="margin:0in 0in 0.0001pt"><span>E: <a href="mailto:nsoleil@enphaseenergy.com" target="_blank">nsoleil@enphaseenergy.com</a></span></p><p style="margin:0in 0in 0.0001pt"><span></span></p><span></span>
<p><span style="font-size:11pt;font-family:"Garamond","serif";color:rgb(31,73,125)"><img src="cid:image002.jpg@01CCADC1.BF83EFD0" alt="nabcep logo" border="0" height="38" width="96"> Certified
Solar PV Installer #03262011-300</span></p><p>“Don’t get me wrong: I love nuclear energy! It’s just that I prefer
fusion to fission. And it just so happens that there’s an enormous
fusion reactor safely banked a few million miles from us. It delivers
more than we could ever use in just about 8 minutes. And it’s wireless!
.” <br></p><p>- William McDonough
<span></span></p>
</div>
<pre>
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