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P.S.<br><br>
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. <br><br>
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?<br><br>
Thanks,<br><br>
Drake <br><br>
<br>
At 09:16 AM 9/13/2011, you wrote:<br>
<blockquote type=cite class=cite cite="">Kirpal,<br><br>
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? <br><br>
Thanks,<br><br>
Drake<br><br>
<br>
At 06:31 PM 9/12/2011, you wrote:<br>
<blockquote type=cite class=cite cite="">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....<br>
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....<br>
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.....<br>
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?<br>
Cheers,<br><br>
<br>
-- <br>
Sunny Regards,<br>
Kirpal Khalsa<br>
NABCEP Certified Solar PV Installer<br>
Renewable Energy Systems<br>
<a href="http://www.oregonsolarworks.com">www.oregonsolarworks.com</a><br>
541-218-0201 m<br>
541-592-3958 o<br><br>
<br>
On Sun, Sep 11, 2011 at 4:09 PM, Drake
<<a href="mailto:drake.chamberlin@redwoodalliance.org">
drake.chamberlin@redwoodalliance.org</a>> wrote:
<dl>
<dd>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. <br>
<dd>Has Sharp cut quality to keep competitive? <br>
<dd>Drake <br>
<br>
<br><br>
</dl><br><br>
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