[RE-wrenches] Standard sizing

[Joel Davidson]

William,

Almost everyone, including manufacturers, wants standard module sizes. There 
are a lot of similar modules, but manufacturers produce different size and 
shape cells (everything from 4-inch square on up and semi-square, round, 
etc.) and customers have different voltage and current needs (everything 
from 18 to 144 cell modules and up). It's like car tires. Lots of sizes and 
models for all different kinds of cars and applications. Our best course of 
action continues to be keep a file of the published module lists. Then ask 
fellow wrenches what replacements will work and where to find them.

Joel Davidson


----- Original Message ----- 
From: "William Miller" <william at millersolar.com>
To: <Allan at positiveenergysolar.com>; "RE-wrenches" 
<re-wrenches at lists.re-wrenches.org>
Sent: Wednesday, December 07, 2011 9:30 AM
Subject: [RE-wrenches] Standard sizing


> Friends:
>
> Why can't the industry create a list of standard module sizes, sort of 
> like the battery industry has (http://www.rtpnet.org/teaa/bcigroup.html)? 
> This would be a big benefit to the consumer and the installer.  If a 
> module of Group X size breaks, you are far more likely to find a 
> replacement if other manufacturers make modules of the same physical size. 
> Then the only challenge is to match electrical characteristics, but if you 
> find the same crystal type and cell count, you have succeeded.  Who can we 
> advocate to?
>
> William Miller
>
> PS:  I have been saying this for years!
>
> wm
>
>
> At 09:04 AM 12/7/2011, you wrote:
>>One or two Matrix/Photowatt PWX1250 needed, new or used, to replace 
>>shattered module in a school demonstration system from 2005. Odd size and 
>>shape, matches nothing else. Please reply offlist if you can help.
>
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