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<div class="moz-cite-prefix">Blue Sky's 1524 and 3024 work with 60
cell mods, and have 12 or 24 v output. I have a several 3048s
that have been in service for over 12 years, no problems.<br>
<br>
<br>
Ray<br>
On 1/24/2013 3:07 PM, Allan Sindelar wrote:<br>
</div>
<blockquote cite="mid:5101B08C.7020907@positiveenergysolar.com"
type="cite">
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<div class="moz-cite-prefix">Larry,<br>
Yes, but isn't it 12V-only output? When I called Rick Cullen to
ask if he had anything to work with 60-cell modules, he told me
only in 12V output, which we seldom encounter any more.<br>
Thanks,<br>
Allan<br>
<br>
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<font face="Times New Roman, Times, serif"><b>Allan Sindelar</b></font><br>
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href="mailto:Allan@positiveenergysolar.com"><font
face="Times New Roman, Times, serif" color="#000099"><u>Allan@positiveenergysolar.com</u></font></a></small><font
face="Times New Roman, Times, serif"><br>
<span style="font-size: 10pt;">NABCEP Certified Photovoltaic
Installer<br>
NABCEP Certified Technical Sales Professional<br>
New Mexico EE98J Journeyman Electrician<br>
Founder and Chief Technology Officer<br>
<b>Positive Energy, Inc.</b><br>
3209 Richards Lane (note new address)<br>
Santa Fe, New Mexico 87507<br>
<b>505 424-1112</b><br>
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On 1/24/2013 2:01 PM, Larry Crutcher, Starlight Solar Power
Systems wrote:<br>
</div>
<blockquote
cite="mid:19BB2558-A414-4739-9C5A-E6EEB4681543@starlightsolar.com"
type="cite">Blue Sky Energy just came out with a MPPT controller
for 60 cell modules called the 2512iX-HV. It can handle up to
270 Watts input/60 cells and 340 Watts input with 36 cell
modules.
<div><span class="Apple-style-span" style="border-collapse:
separate; color: rgb(0, 0, 0); font-family: Helvetica;
font-style: normal; font-variant: normal; font-weight:
normal; letter-spacing: normal; line-height: normal;
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text-transform: none; white-space: normal; widows: 2;
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-webkit-border-vertical-spacing: 0px;
-webkit-text-decorations-in-effect: none;
-webkit-text-size-adjust: auto; -webkit-text-stroke-width:
0px; font-size: medium; "><span class="Apple-style-span"
style="border-collapse: separate; color: rgb(0, 0, 0);
font-family: Helvetica; font-style: normal; font-variant:
normal; font-weight: normal; letter-spacing: normal;
line-height: normal; orphans: 2; text-align: -webkit-auto;
text-indent: 0px; text-transform: none; white-space:
normal; widows: 2; word-spacing: 0px;
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-webkit-text-decorations-in-effect: none;
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0px; font-size: medium; "><span class="Apple-style-span"
style="border-collapse: separate; color: rgb(0, 0, 0);
font-family: Helvetica; font-style: normal;
font-variant: normal; font-weight: normal;
letter-spacing: normal; line-height: normal; orphans: 2;
text-align: -webkit-auto; text-indent: 0px;
text-transform: none; white-space: normal; widows: 2;
word-spacing: 0px; -webkit-border-horizontal-spacing:
0px; -webkit-border-vertical-spacing: 0px;
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-webkit-text-size-adjust: auto;
-webkit-text-stroke-width: 0px; font-size: medium; ">
<div style="word-wrap: break-word; -webkit-nbsp-mode:
space; -webkit-line-break: after-white-space; "><span
class="Apple-style-span" style="border-collapse:
separate; color: rgb(0, 0, 0); font-family:
Helvetica; font-style: normal; font-variant: normal;
font-weight: normal; letter-spacing: normal;
line-height: normal; orphans: 2; text-align:
-webkit-auto; text-indent: 0px; text-transform:
none; white-space: normal; widows: 2; word-spacing:
0px; -webkit-border-horizontal-spacing: 0px;
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-webkit-text-size-adjust: auto;
-webkit-text-stroke-width: 0px; font-size: medium; ">
<div style="word-wrap: break-word;
-webkit-nbsp-mode: space; -webkit-line-break:
after-white-space; "><span
class="Apple-style-span" style="border-collapse:
separate; color: rgb(0, 0, 0); font-family:
Helvetica; font-style: normal; font-variant:
normal; font-weight: normal; letter-spacing:
normal; line-height: normal; orphans: 2;
text-align: -webkit-auto; text-indent: 0px;
text-transform: none; white-space: normal;
widows: 2; word-spacing: 0px;
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-webkit-text-decorations-in-effect: none;
-webkit-text-size-adjust: auto;
-webkit-text-stroke-width: 0px; font-size:
medium; ">
<div style="word-wrap: break-word;
-webkit-nbsp-mode: space; -webkit-line-break:
after-white-space; "><span
class="Apple-style-span"
style="border-collapse: separate; color:
rgb(0, 0, 0); font-family: Helvetica;
font-style: normal; font-variant: normal;
font-weight: normal; letter-spacing: normal;
line-height: normal; orphans: 2; text-align:
-webkit-auto; text-indent: 0px;
text-transform: none; white-space: normal;
widows: 2; word-spacing: 0px;
-webkit-border-horizontal-spacing: 0px;
-webkit-border-vertical-spacing: 0px;
-webkit-text-decorations-in-effect: none;
-webkit-text-size-adjust: auto;
-webkit-text-stroke-width: 0px; font-size:
medium; ">
<div style="word-wrap: break-word;
-webkit-nbsp-mode: space;
-webkit-line-break: after-white-space; "><span
class="Apple-style-span"
style="border-collapse: separate; color:
rgb(0, 0, 0); font-family: Helvetica;
font-style: normal; font-variant:
normal; font-weight: normal;
letter-spacing: normal; line-height:
normal; orphans: 2; text-indent: 0px;
text-transform: none; white-space:
normal; widows: 2; word-spacing: 0px;
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-webkit-border-vertical-spacing: 0px;
-webkit-text-decorations-in-effect:
none; -webkit-text-size-adjust: auto;
-webkit-text-stroke-width: 0px;
font-size: medium; "><span
class="Apple-style-span"
style="border-collapse: separate;
color: rgb(0, 0, 0); font-family:
Helvetica; font-style: normal;
font-variant: normal; font-weight:
normal; letter-spacing: normal;
line-height: normal; orphans: 2;
text-indent: 0px; text-transform:
none; white-space: normal; widows: 2;
word-spacing: 0px;
-webkit-border-horizontal-spacing:
0px; -webkit-border-vertical-spacing:
0px;
-webkit-text-decorations-in-effect:
none; -webkit-text-size-adjust: auto;
-webkit-text-stroke-width: 0px;
font-size: medium; ">
<div style="word-wrap: break-word;
-webkit-nbsp-mode: space;
-webkit-line-break:
after-white-space; ">
<div><br
class="Apple-interchange-newline">
Larry Crutcher</div>
<div>Starlight Solar Power Systems</div>
</div>
</span></span>
<div><br>
</div>
</div>
</span></div>
</span></div>
</span></div>
</span><br class="Apple-interchange-newline">
</span><br class="Apple-interchange-newline">
</span> </div>
<br>
<div>
<div>On Jan 24, 2013, at 1:15 PM, Jay Peltz wrote:</div>
<br class="Apple-interchange-newline">
<meta http-equiv="content-type" content="text/html;
charset=ISO-8859-1">
<div dir="auto">
<div>Hi guys</div>
<div><br>
</div>
<div>I've buying the new 6" cell x 72 cell from Trina from a
few suppliers. </div>
<div>Big yea, but same 44voc so it's an easy add to
existing systems. </div>
<div><br>
</div>
<div>A huge relief. </div>
<div><br>
</div>
<div>Jay</div>
<div><br>
</div>
<div>Peltz power</div>
<div><br>
Sent from my iPhone</div>
<div><br>
On Jan 24, 2013, at 12:11 PM, Ray Walters <<a
moz-do-not-send="true" href="mailto:ray@solarray.com">ray@solarray.com</a>>
wrote:<br>
<br>
</div>
<blockquote type="cite">
<div>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
<div class="moz-cite-prefix">Hi Allan;<br>
<br>
I've been in the same conundrum lately. I found that
AEE and others have 12 v modules (Solartech), but the
price per watt is double or triple. My take is that
somewhere around 200 to 400 watts, its more cost
effective to go to the GT modules with an MPPT
controller. Blue Sky makes the 1524, and 3024 that
can take up to 57 Voc, so those would work at still
fairly low cost. Unfortunately many of the other low
cost MPPT controllers won't work with the 60 cell
modules. At some point, it may actually be cost
effective to just use 60 cell modules with non MPPT
controllers, and just forget about the extra 24
cells. (I know that sounds crazy, but PV less than
$1/ watt is crazy too)<br>
<br>
I'm trying to add modules to an existing array of 8
Siemens 12 v modules, and it just doesn't work out,
except with separate controllers. <br>
Also, its amazing how much PV you can throw at an off
grid project these days for $10k.<br>
It almost makes messing around with the old modules a
waste of time.<br>
Perhaps the solution might be to remove old arrays for
customers wanting to really up size, and then reuse
the old modules for small systems?<br>
<br>
Ray<br>
<br>
On 1/24/2013 12:35 PM, Allan Sindelar wrote:<br>
</div>
<blockquote
cite="mid:51018CFF.6020201@positiveenergysolar.com"
type="cite">
<meta http-equiv="content-type" content="text/html;
charset=ISO-8859-1">
Wrenches,<br>
We have years of installing 36-cell (12V) and 72-cell
(24V) modules for battery-based customers. Most of our
systems are 24V or 48V nominal. Over the last few
years, sources of conventionally-sized 72-cell modules
have dried up - as cells have increased in size, most
modules and most newer factory production lines have
either gone to 60-cell (20V) modules, or 72 cells in
300+ watt ranges. It seems that the formerly common 72
cell, 24V modules in the 150-190 watt range, which are
well-suited to integrating into existing systems, are
no longer available.<br>
<br>
60-cell modules in the common 220-250 watt range can't
be added to an existing system unless run through a
dedicated MPPT charge controller that can convert
voltage, such as an FM, XW60, Classic or TriStar; the
added cost of any of these controllers cancels out the
low prices of the modules.<br>
<br>
Who continues to manufacture 72-cell modules? Which
distributors carry them?<br>
I am aware of three options - are there more?<br>
- Sunpower makes one module in the 245 watt range
that can be used negative ground, but it's very high
efficiency (and with high Voc/Vmp as well) and very
pricey;<br>
- Sanyo/Panasonic has 225-240 watt modules, but
also quite premium and pricey;<br>
- Ameresco bought the rights to manufacture many
former BP modules, and I think they make some. But we
had to replace lots of failed BP modules in that size
range, and are hesitant to use their technology,
fearing that the problems may persist in the continued
line.<br>
<br>
Thank you for any discussion and recommendations.<br>
Allan<br>
<div class="moz-signature">-- <br>
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<font face="Times New Roman, Times, serif"><b>Allan
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Photovoltaic Installer<br>
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Founder and Chief Technology Officer<br>
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3209 Richards Lane (note new address)<br>
Santa Fe, New Mexico 87507<br>
<b>505 424-1112</b><br>
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