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Allan,<br>
<br>
Your right about the modules from Carrizo being made by Arco. And
weren't they mono-crystalline? Three of these modules in series
would be 30 cells and not enough voltage for charging a 12-volt
battery. But I think that's the biggest similarity to a Quad-Lam. <br>
<br>
<pre class="moz-signature" cols="72">Kent Osterberg
Blue Mountain Solar, Inc.
<a class="moz-txt-link-abbreviated" href="http://www.bluemountainsolar.com">www.bluemountainsolar.com</a>
</pre>
On 3/24/2012 12:27 PM, Allan Sindelar wrote:
<blockquote cite="mid:4F6E203B.7030706@positiveenergysolar.com"
type="cite">
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Hilton,<br>
The only issue I take with your suggestion that these are Carrizo
modules is that as far as I know, all of the Carrizo modules (used
at the Carrisa Plains PV power plant near Paso Robles CA from
1984-1990) were made by Arco, not Solarex.<br>
<br>
Also, the Carrizo Quad-Lams required four in series, not three. A
few of the better modules could reach 16V in hot weather in sets
of three, but the vast majority couldn't, especially after
premature degradation caused by the use of reflectors on most of
the tracked arrays. They were called Quad-Lams by Carrizo Solar
(who bought the plant and cut them up for resale) for this reason.
Photocomm sold some as sets of three (and called them Tri-Lams) in
the early 90s, but after haranguing by Richard Perez of Home Power
and others, supplied a fourth module to purchasers, as sets of
three had insufficient MPP voltage to EQ a 12V battery during
summer heat.<br>
Allan<br>
<br>
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On 3/24/2012 12:22 PM, Hilton Dier III wrote:
<blockquote cite="mid:4F6E10E0.3060903@gmail.com" type="cite">Kent,
<br>
<br>
I had modules like those back in the early 1990s, when I first
went off grid. They are designed to be wired in sets of three
for 12V nominal, 18Voc. If the EVA encapsulant is a bit browned
it is probably leftover from the Carrizo project, the largest of
its time. The Carrizo project had reflectors to increase output
but they cooked the adhesive. The owners eventually lost their
beneficial rate and realized they would make more money selling
off the modules than selling the electricity. Many homesteaders
benefited. <br>
<br>
Hilton <br>
<br>
The label looks like a shiny piece of foil, but with light
angled on it <br>
just right way the name Solarex is visible as are many words on
the <br>
label template. None of the values are legible. It is a little
smaller <br>
than a MSX-60. It has 40 cells that are wired in four parallel
strings <br>
of ten. Open circuit voltage is about 6 volts. Shorted it put
out 4 amps <br>
in bright but very overcast conditions. I suspect that it would
put out <br>
8 to 10 amps at STC. There are two j-boxes, one on each end,
with very <br>
substantial terminals. It still operates, but obviously it isn't
much <br>
use for charging a battery, even a six volt one. Anyone familiar
with a <br>
low-voltage high-current Solarex module. <br>
<br>
<br>
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