Hello Kirpal,
Walt Ratterman here. I can respond to at least the first part. In Burundi, we used three 5 KW Sunny Island 5048's in a three phase configuration. For all of the DC and AC breakers, wireways, etc., etc., we used the Outback Flexware equipment. We put the DC on the bottom and the AC on the top. Due to the width of the SI's, we used 2 - FW1000 systems to do this. (And I am glad - we actually needed all of the wiring space. I think it would work really well for your system. Of course, there may be some other good choices that I would be anxious to learn about as well. You can see some good photos of this installation at our photo gallery - linked form our Home Page at www.sunepi.org. Click on the cover for the photos for the Burundi / Kigutu / Village Health Works / SELF project. Feel free to holler if you need any specifics on how we did anything here. OH - on your other question.I have no experience on large sealed banks, but Rolls now has AGM's that start at T-105 size, include the 8G8D sizes, and then go all the way up to 2V 3300 Ah. Thanks!! Walt From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Kirpal Khalsa Sent: Wednesday, October 07, 2009 6:15 PM To: RE-wrenches Subject: [RE-wrenches] Sunny Island DC Load Centers, Sealed Batteries Hi Folks......we have an upcoming Sunny Island/Sunny Boy AC Coupled system installation.....We have mostly done Outback and Xantrex battery based systems.......and like the available supporting DC load centers with main breakers and other DC load and charging breakers...... What are folks using for the Sunny Island products? Outback Flexware DC 500's? or 1000's? This particular system will consist of 4 Sunny Islands and therefore will need four main breakers...... We primarily need a breaker box to locate our main DC breakers coming from the battery bank.......Any advice, experiences would be appreciated...... Also on that note.....anyone wish to share any experience or advice on the GNB Absolyte GX series batteries or the East Penn Deka UnigyII as a standby grid connected back up battery bank....They both seem like they are good for primarily hanging out in float with occasional deep discharges not negatively affecting the health of the batteries.....This is the type of service we expect the batteries will be in primarily......Any recommendations of one brand over the other.....The vertical stacking seems convenient as far as space is concerned.....maintenece free......any recommendations on a good supplier on the west coast? Any other brands i should be looking at in the sealed battery category for a fairly large Ah battery bank? 100 thanks ! -- Sunny Regards, Kirpal Khalsa NABCEP Certified Solar PV Installer Renewable Energy Systems www.oregonsolarworks.com 541-218-0201 m 541-592-3958 o
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