[RE-wrenches] Sharp modules

[Drake]

P.S.

The power tolerance range of +10 to -5% came out of a newly 
downloaded spec sheet for NU U240F2 modules.  The +10 % would likely 
help with micro inverters or Solar Edge.  In a string inverter 
installation, the -5% would trump.

I like the REC power tolerance of +2 to -0.  REC has a slightly lower 
PTC rating than Sharp.  How do these two factors work together when 
figuring the effectiveness of a module?

Thanks,

Drake


At 09:16 AM 9/13/2011, you wrote:
>Kirpal,
>
>The Sharp modules that we've used haven't been much out of square, 
>and the glass in the frame did not noticeably move around.  We have 
>not had to beat the modules back into shape so far. (I will bring my 
>rubber mallet to the next installation!)  So far, I've used 224s and 
>235, with some 240s on order.  What series of modules have you 
>noticed issues with?
>
>Thanks,
>
>Drake
>
>
>  At 06:31 PM 9/12/2011, you wrote:
>>Drake....As far as i know the power tolerance rating has gotten a 
>>bit better than they used to be.....I believe the floating glass 
>>inside the frame is a long standing design but I just haven't seen 
>>any other manu's doing that so it seems odd when carrying the 
>>module and the glass moves independent of the frame....
>>I like the idea of a rubber mallet to "knock the frame into 
>>shape".....but I dislike the idea of having to do this in the first 
>>place! Haven't had to do it for other manu's modules....
>>We have started to use the Sharp modules recently due to their 
>>reliable supply, lowest cost for  US manufacturing, coupled with 
>>the idea that their company is relatively stable as far a 
>>supporting their warranties for the long haul.....
>>Anyone have any other US modules they find to be of good quality, 
>>reliable supply, low cost and strong company foundation that values 
>>their installers?
>>Cheers,
>>
>>
>>--
>>Sunny Regards,
>>Kirpal Khalsa
>>NABCEP Certified Solar PV Installer
>>Renewable Energy Systems
>><http://www.oregonsolarworks.com>www.oregonsolarworks.com
>>541-218-0201 m
>>541-592-3958 o
>>
>>
>>On Sun, Sep 11, 2011 at 4:09 PM, Drake 
>><<mailto:drake.chamberlin at redwoodalliance.org> 
>>drake.chamberlin at redwoodalliance.org> wrote:
>>What do you think of the quality of the new Sharp modules?  The 240 
>>F2 has a good PTC rating, but a power tolerance range of 15% (+10% 
>>-5%).  With the frame and construction issues, I wonder if the 
>>quality of Sharp modules is slipping.
>>Has Sharp cut quality to keep competitive?
>>Drake
>>
>>
>>
>>
>>
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>Drake Chamberlin
>ATHENS ELECTRIC
>OH License 44810
>CO license 3773
>NABCEP Certified PV
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Drake Chamberlin
ATHENS ELECTRIC LLC
OH License 44810
CO license 3773
NABCEP Certified PV
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