Dear people: We have a customer (and ironically, a former employee of LADPW) who has been dragged through the dirt on his GS8048 system. Basically they insisted that he purchase a straight grid-tie inverter SMA5000). There is something wrong with the way LADWP is dealing with these systems; they called my client's battery bank a 'parasitic load'! It's enough to drive you crazy.
Chris Daum Oasis Montana Inc. -----Original Message----- From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Peter Parrish Sent: Sunday, June 08, 2014 11:39 AM To: 'RE-wrenches' Cc: t...@ecs-solar.com Subject: Re: [RE-wrenches] OutBack Power Radian Grid Zero GS4048A or GS8048A Hi Tom et al, I am sorry that I can't help you. We have just installed a GS8048 (not an "A" model as I understand things) system and are having some difficulty with Los Angeles Dept of Water and Power getting an Interconnection Agreement. They have assigned an engineer to review our application and he had responded by saying that "In addition to the information already submitted I will need the modes of operations of the system you are installing by that I mean the schematic of each different mode. I have attached a typical sample of Grid On & Grid Off. However I will need the all modes pertaining to your system configuration. Normally, there are 4-8. Please send your modes in PDF or CAD. Also please indicate the lines that are "hot" in bold and arrows to illustrate the flow." It is clear that this engineer has little experience with DC coupled grid tied systems with battery backup, as he sent me a couple of single line diagrams for a Sunny Island system and is reluctant to provide us with an example or two for a DC coupled system. I am surprised that LADWP has not developed any standard system configurations / modes of operations that they can share with solar contractors so that we can respond without having to spend a great deal of time developing material that may in the end not be what they want. To this end, I was interested in how much information you had gathered in the process of designing/installing the system you refer to. I would appreciate any technical advice /documentation you could provide. Warm Regards Peter T. Parrish, Ph.D. President, SolarGnosis 1107 Fair Oaks Ave. South Pasadena, CA 91107 Ph. (323) 839-6108, Fax. (323) 258-8827 -----Original Message----- From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Tom Lane Sent: Thursday, April 17, 2014 12:02 PM To: re-wrenches@lists.re-wrenches.org Subject: [RE-wrenches] OutBack Power Radian Grid Zero GS4048A or GS8048A Fellow Wrenches , has anyone put in an OutBack Power Grid Zero GS4048A or GS8048A in the Grid Zero mode . I am interested which appliances or loads that you choose for the sub panel . I understand that you DO NOT have to get an interconnection agreement SINCE you are sending ZERO back to the utility . My estimate that a complete system cost about $1.33 to $1.55 dollars more per watt . Does anyone know of a complete story INCLUDING loads chosen and batteries used in an installed system . We need to get ready to use this system in Florida as the utilities are paying off all the legislators to stop net metering or only give you about a pittance for what you sell back . Any real life installations on the OutBack Power Grid Zero I really want to know the details . Thanks and Happy Trails . Gator Tom PS : I understand you can use the MidNite Classic Charge Controllers with this system and any battery bank from 44 to 64 volts of any type of battery . I am using Full River in my des igns . Be happy to send a components list for both systems to anyone who wants the components , got two homes in Florida we are planning to use the GS4048A just a little anxious about choosing the loads for the subpanel . _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address & 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 Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org _______________________________________________ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
