We have a few GT w/Battery backup systems in the pipeline, and would also be interested in hearing comparisons between the SI, GVFX, and Radian systems.
We've done several off-grid SB/SI systems and like them (although as Allan says, they are pricier), as well as innumerable off grid VFX systems, and a few GVFX systems, but no Radians or XWs (I as a rule stay away from Xantrex for historical reasons). Intrigued by the Radian, but it still feels on the bleeding edge range to be comfortable to just jump in to them. Thanks for any comments, on or off list. Howie -- Howie Michaelson NABCEP Certified Solar PV Installer™ Catamount Solar, LLC Renewable Energy Systems Sales and Service VT Solar Electric & Hot Water Incentive Partner http://www.CatamountSolar.com 802-272-0004 On Thu, August 23, 2012 10:39 am, Allan Sindelar wrote: > <html> > <head> > > <meta http-equiv="content-type" content="text/html; > charset=ISO-8859-1"> > </head> > <body bgcolor="#FFFFFF" text="#000000"> > Wrenches,<br> > We have worked with Outback Radian and Schneider XW once or twice > each for grid-tie with backup, and with Sunny Boy/Sunny Island > numerous times. The SMA is certainly the most sophisticated > equipment, but also the most expensive. <br> > <br> > For a particular job coming up, the loads are not excessive, and the > array will be 8kW. The main hitch is that the array will be located > on a barn roof that is about 500' from the BOS and home.<br> > <br> > I suspect that running high-voltage DC from the array to a Sunny > Boy, and then feeding a pair of Sunny Islands makes the most sense. > My question is this: does it make any sense to consider running two > high-voltage subarrays 500' to two Schneider XW-MPPT-80 600V charge > controllers, feeding two XW inverters (in order to handle the full > 8kW) in a DC-coupled approach? <br> > <br> > Is there ever a situation in which this would be a better solution > than SMA?<br> > <br> > Thank you, as always,<br> > Allan<br> > <div class="moz-signature">-- <br> > <meta http-equiv="content-type" content="text/html; > charset=ISO-8859-1"> > <title></title> > <font face="Times New Roman, Times, serif"><b>Allan > Sindelar</b></font><br> > <small><a href="mailto:al...@positiveenergysolar.com"><font > color="#000099" face="Times New Roman, Times, > serif"><u>al...@positiveenergysolar.com</u></font></a></small><font > face="Times New Roman, Times, serif"><br> > <span style="font-size: 10pt;">NABCEP Certified Photovoltaic > Installer<br> > NABCEP Certified Technical Sales Professional<br> > New Mexico EE98J Journeyman Electrician<br> > Founder and Chief Technology Officer<br> > <b>Positive Energy, Inc.</b><br> > 3209 Richards Lane (note new address)<br> > Santa Fe, New Mexico 87507<br> > <b>505 424-1112</b><br> > <a href="http://www.positiveenergysolar.com/" > target="_blank"><u>www.positiveenergysolar.com</u></a><o:p></o:p></span></font> > <p class="MsoNormal" style="margin-right: 722.25pt;"><span > style="font-size: 10pt;"><font face="Times New Roman, Times, > serif"><st1:place w:st="on"><st1:city > w:st="on"></st1:city><st1:state > w:st="on"></st1:state><st1:postalcode > w:st="on"></st1:postalcode></st1:place></font><b > style=""><br> > </b></span></p> > <span style="font-size: 10pt;"><br> > </span> </div> > </body> > </html> > _______________________________________________ > List sponsored by Home Power magazine > > List Address: RE-wrenches@lists.re-wrenches.org > > Options & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org > > _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org