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<a class="moz-txt-link-freetext" href="http://www.sciencedaily.com/releases/2014/02/140213122404.htm">http://www.sciencedaily.com/releases/2014/02/140213122404.htm</a><br>
<a class="moz-txt-link-freetext" href="http://www.nrel.gov/docs/fy12osti/51664.pdf">http://www.nrel.gov/docs/fy12osti/51664.pdf</a><br>
go to the conclusion on page 18.<br>
<br>
Thanks,<br>
<pre class="moz-signature" cols="72">R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760</pre>
<div class="moz-cite-prefix">On 6/1/2015 5:46 PM, jay peltz wrote:<br>
</div>
<blockquote
cite="mid:CAGr8+7fKE1Xa6p_xGk_Z+kNDByeWaww08-L9g=pA0VeMuMJUKQ@mail.gmail.com"
type="cite">
<div dir="ltr">HI Ray,
<div><br>
</div>
<div>Can you tell me/us where you have your data on the a-Si
having higher voltage degradation over time?</div>
<div><br>
</div>
<div>thanks</div>
<div>jay</div>
<div><br>
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<div><br>
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<div class="gmail_extra"><br>
<div class="gmail_quote">On Sun, May 31, 2015 at 11:31 AM, Ray
Walters <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:ray@solarray.com" target="_blank">ray@solarray.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"> Yes, amorphous
modules degrade faster then crystalline cells. 15 years
will really start catching up with you, that's why we
always tried to stick to monocrystalline when we could.
<br>
I think your best option for now is to rewire the array
for much higher voltage. Even your current voltage
problem aside, the system will run more efficiently at
higher voltage: Less current = less voltage drop. I
would probably just jump the 4 module sets in series in
the combiner box to 8 in series. Should be a quick fix,
and really show an improvement. I've seen this same
issue with low voltage polys and undersized wiring.
Usually the MPP controllers like some room to play with;
as soon as the MPP voltage gets close to or less than
battery voltage, the current drops off substantially. <br>
<br>
<br>
<br>
<br>
<pre cols="72">R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
<a moz-do-not-send="true" href="tel:303%20505-8760" value="+13035058760" target="_blank">303 505-8760</a></pre>
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<br>
<div class="gmail_signature">
<div dir="ltr">
<div>
<div dir="ltr">
<div>Jay Peltz<br>
Peltz Power<br>
<a moz-do-not-send="true"
href="mailto:jay.peltz@gmail.com" target="_blank">jay.peltz@gmail.com</a></div>
</div>
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