Hi Peter,The Outback inverter will not regulate battery charge while AC coupled. The SMA is the only system designed to give a regulated charge to batteries in the AC coupled mode. The Outback axillary relay can be used to drive a relay that will disconnect the input to the inverter, to regulate battery charge when grid is down. I like an "Ice Cube Rely" (such as Idec) to control a contactor. The coil of the Idec uses very little power.
Why did you gravitate toward Xantrex from Outback? Drake At 09:25 PM 8/4/2009, you wrote:
I would like to start a thread on AC-coupled grid tied battery backup systems. We do a fair number of GTBBSs (four to five a year) and I have gravitated from the Outback solution to the Xantrex XW solution. I am not happy with the XW product and especially not happy with Xantrex's post sales technical support. I know I have more to learn about these puppies in general, so I am genuinely disappointed with the uneven TS from Xantrex.I also had this nagging feeling that the heart of a GTBBS should be the tried and true high voltage inverter. Enter the SunPower positive ground requirement, and now an AC coupled system seems the best solution.From the white paper that Outback sent me, there was no mention of a heavy duty relay. Doesn't the Outback inverter regulate the battery charge control?Has anyone tried to order a SunWize "Solar Ready Battery Assembly" without the charge controller (e.g. P/N SRB3.6). It would seem that this is a nice package for small energy needs (13 to 26 kWh of battery backup).- Peter [] Peter T. Parrish, Ph.D., President California Solar Engineering, Inc. 820 Cynthia Ave., Los Angeles, CA 90065 CA Lic. 854779, NABCEP Cert. 031806-26 <mailto:peter.parr...@calsolareng.com>peter.parr...@calsolareng.comPh 323-258-8883, Mobile 323-839-6108, Fax 323-258-8885----------From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of William MillerSent: Tuesday, August 04, 2009 5:55 PM To: jry...@netscape.com; RE-wrenches Subject: Re: [RE-wrenches] XW6048 parts problem Jeff:I have a spare. They are not kept in the socket but are loose in a bag. Send me your mailing address off list. I leave tomorrow for a week, so I hope I see your address before I go.William At 04:59 PM 8/4/2009, you wrote:Just completed a large residential grid/gen/solar/battery system using a XW6048 inverter.We are using a SunnyBoy inverter at the array and doing an AC coupled backfeed. To do this we have installed a heavy duty relay in the output of the SunnyBoy, and are using the aux. relay contacts on the XW unit to close this relay when battery voltage is at high limit (during no load power outage to prevent over-charging)Not sure if we lost it during installation, if it shook loose in shipment and fell out, or was missing to begin with, but to connect to the aux. contacts in th XW requires a very small green flat 5-pin connector which is missing.I contacted multiple people at Xantrex and their service center, waded through their web site, and finally talked to a service tech. He advised that "he was looking for an extra one of these connectors 6 months ago and still has not received it, as these compoments are made and assembled in China and they do not stock anything that is considered an assembly part used in China to build their units."First, I did not realize these inverters were being assembled in China, and second, who ever heard of not stocking a replacement part just because its made in China. If that were true, 95% of everything sold today in US would not be able to order replacement parts.Anybody out their know if there is a Radio Shack type supplier where I can order a bag of these and get on with the system startup and my life?Thanks, Jeff Yago _____________________________________________________________ Netscape. Just the Net You Need. _______________________________________________ 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.orgList-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.orgList rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org No virus found in this incoming message. Checked by AVG - www.avg.comVersion: 8.5.392 / Virus Database: 270.13.43/2281 - Release Date: 08/04/09 05:57:00Please note new e-mail address and domain: William Miller Miller Solar Voice :805-438-5600 Fax: 805-438-4607 email: will...@millersolar.com http://millersolar.com License No. C-10-773985 _______________________________________________ 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.orgList-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.orgList rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Drake Chamberlin Athens Electric OH License 44810 CO License 3773 NABCEP TM Certified PV Installer Office - 740-448-7328 Mobile - 740-856-9648
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