Kirpal Thanks for the recommendations If you have a diagram that would be most helpful and generous What Lithium Battery are you using with this configuration?
Much Appreciated Larry Larry Brown Sun Mountain 845-657-8096 [email protected] On Jul 19, 2018, at 11:15 AM, Kirpal <[email protected]> wrote: Larry.....Outback Radian would work fine but you would need 2 of the 8kW inverters for your ~11kW GT inverter. Outback recommends a maximum 75% loading ratio when AC coupling. We have used a simple solid state relay controlled by the Aux Out of the Radian to turn off one leg of the SolarEdge or any other GT inverter essentially shutting off the GT inverter when a desired battery voltage is reached. As an aside, in earlier days when lead acid batteries where the main battery technology I didn't like this set up because it didn't allow multistage charging of the batteries leading to batteries only reaching approximately 80% SOC (bad for batteries) because there was no ability to taper charge (aside from frequency shift compatible inverters). But nowadays with Lithium batteries, which don't require multistage charging becoming more common this method of AC coupling is pretty attractive because the batteries don't care if they only reach a partial state of charge....Even though you can charge them more than 80% before kicking off the GT inverter. We have used this method successfully in addition to having DC coupling present in the same system as well. Let me know if you need a diagram. Sunny Regards, Kirpal Khalsa Oregon LRT#25 NABCEP Certified PV Installation Professional Oregon Solarworks LLC www.oregonsolarworks.com <http://www.oregonsolarworks.com/> 541-299-0402 On Thu, Jul 19, 2018 at 7:07 AM, Larry Brown <[email protected] <mailto:[email protected]>> wrote: Does anyone have a recommendation on a battery based inverter to AC Couple with a Solar Edge 11400A-US Inverter that is already installed? I have been working a lot with the Schneider Conergy XW+ Inverters for off grid but have no experience AC Coupling them with a Solar Edge Inverter Any recommendations? Thanks Larry Larry Brown Sun Mountain 845-657-8096 [email protected] <mailto:[email protected]> _______________________________________________ List sponsored by Redwood Alliance List Address: [email protected] <mailto:[email protected]> Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org <http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org> List-Archive: http://www.mail-archive.com/[email protected]/maillist.html <http://www.mail-archive.com/[email protected]/maillist.html> List rules & etiquette: www.re-wrenches.org/etiquette.htm <http://www.re-wrenches.org/etiquette.htm> Check out or update participant bios: www.members.re-wrenches.org <http://www.members.re-wrenches.org/> _______________________________________________ List sponsored by Redwood Alliance List Address: [email protected] Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/[email protected]/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
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