MIXED PANEL ARRAY'S [RE-wrenches]

[Travis Creswell, Ozark Solar]

Steve,

I was wondering about that and its good to hear it confirmed.  I still
really like the idea if being able to run the array @ 24 volts and the
batteries @ 12.  I was observing this array producing over 5 amps very early
in the morning.

Factory instructions or not the inspectors go by code which goes by the
rating on the back of the panels which I have never observed to allow more
than one module after you apply the 1.56 NEC required de-rate.  My memory
says that we did finally determine that you can't parallel modules.  It's
sort of a mute point anyway as the only mass produced combiner box on the
market doesn't appear to protect the other sub array's from SSC.

Travis Creswell
----------
>From: "Steve Willey, Backwoods Solar" <steve at backwoodssolar.com>
>To: RE-wrenches at topica.com
>Subject: Re: MIXED PANEL ARRAY'S [RE-wrenches]
>Date: Mon, Aug 14, 2000, 4:22 PM
>

> This is not significant
>when not converting voltage, just loses the boost function, but in 24 to 12
>you actually get less power out to battery than in from array at low amp
>levels.

>I thought the Siemens instruction sheet limit on not paralleling modules was
)discussed earlier on this group and decided the instructions were obsolete,
>per the factory, and it indeed was permissible to parallel two modules??? ??

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