Re: [RE-wrenches] Re-configuring expanded array

[Allan Sindelar]

Holt, The string of two will contribute nothing to the charging, as the combined input voltage will be above Voc for the string of two. Better off storing the last two for spares. Allan Allan Sindelar al...@positiveenergysolar.com NABCEP Certified Photovoltaic Installer NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician Positive Energy, Inc. 3201 Calle Marie Santa Fe, New Mexico 87507 505 424-1112 www.positiveenergysolar.com On 9/30/2011 7:55 AM, hol...@sbcglobal.net wrote: Battery based grid tie system   Current array: 20 modules - 5 strings of 4 Proposed array: 32 modules - 10 strings of 3, 1 string of 2 - all to MNPV12 combiner   changing charge controller (long story) and expanding system to 2 CC's. voltage limits me to 3 max in string.   Question: is the 3-2 mix of strings an issue? Also - would modules of slightly different voltages in the same string be an issue?   Think I know the answer - that's why I'm asking others.....just want to be sure   Holt E. Kelly Holtek Fireplace & Solar Products 500 Jewell Dr. Waco TX. 76712 254-751-9111 www.holteksolar.com   _______________________________________________ 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

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