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- Original Message -
From: Nick Soleil
To: RE-wrenches
Sent: Sunday, June 20, 2010 12:51 AM
Subject: Re: [RE-wrenches] SunPower modules
What do you think of the SunPower modules?
What do you think of the SunPower modules? They seem to be a top quality
product, and they really promote the idea that they produce the most power per
DC watt. What have your side by side tests found? Why won't they warranty
their product with Enphase?
Thanks
Sent from my iPhone
On Jun 17,
inverters.
Jeff Irish
Hudson Valley Clean Energy
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of jay
peltz
Sent: Friday, March 20, 2009 9:39 AM
To: RE-wrenches
Subject: Re: [RE-wrenches] Sunpow
Drake,
I have seen this often. The operating voltage drops as panels age.
MPPT depends on a higher input voltage compared to the battery
voltage. When you account for module temperature and age, the panel
may not produce enough differential voltage for the controller to
convert into power
es.org] On Behalf Of Drake Chamberlin
Sent: Friday, March 20, 2009 1:07 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] Sunpower modules
Allan and Brian
Thanks for the answer to the problem. I think the Xantrex PWM
chargers are going to be the most appropriate for these modules.
The old Arco m
Sindelar
Sent: Friday, March 20, 2009 8:32 AM
To: 'RE-wrenches'
Subject: Re: [RE-wrenches] Sunpower modules
Drake,
The key to your question may be in the "old Arco units". Most Arcos (all
predate 1990, when Siemens bought Arco) are 36 cell, but both Arco and
Solarex made some
Sent: Friday, March 20, 2009 8:32 AM
To: 'RE-wrenches'
Subject: Re: [RE-wrenches] Sunpower modules
Drake,
The key to your question may be in the "old Arco units". Most Arcos (all
predate 1990, when Siemens bought Arco) are 36 cell, but both Arco and
Solarex made some 33-cell,
Drake,
The key to your question may be in the "old Arco units". Most Arcos (all
predate 1990, when Siemens bought Arco) are 36 cell, but both Arco and
Solarex made some 33-cell, 32-cell, and even 30-cell "self-regulating"
modules in those years. With fewer cells, the MPPT was too low to benefit
muc
At 09:46 AM 3/20/2009, you wrote:
The CTI-90, rated at 5.15 amps, will reach 7 amps here in Yuma with
the Blue Sky 3024i.
Do you use the Blue Sky metering, or have you checked the MPPT output
with independent metering? I retrofitted a 12 V Blue Sky charger on
an old cabin system. The CC had
Sunpower modules can wired 2 in series for the 200 watt 72 cell modules
and 4 in series for the 90 watt 32 cell modules with typical negative
grounding. The power loss effect is not a problem in low voltage
systems. AEE Solar has private-labeled modules for battery charging,
made with Sunpowe
William,
We have used the SPR-90 and CTI-90 with Blue Sky, Outback and
Morningstar MPPT controllers. No issues, no problems. Be aware that
most of our installs are RV's and trailers and not grounded. We have
installed them in grounded systems in Mexico. The CTI-90, rated at
5.15 amps, wil
Hi Larry,
I was under the impression that Sunpower were only for on grid?
And for off grid with the low voltages that we use, they are still
requiring you to use positive ground? I've seen the white paper they
did and it showed at lower voltages there is no need to positive
ground, thats
Larry:
Thanks for the reply. Can you use Outback and Xantrex charge controllers
with the positive ground?
William Miller
At 09:14 PM 3/19/2009, you wrote:
William,
I know you asked Jeff but thought I would respond as all we do are off
grid, battery based systems. I typically see that the
Sunpower likes to keep (requires) the 200+ for grid tied applications.
If your battery back project is also grid tied then, yes.
However, the SPR 90¹s would be the ticket for off-grid. They are available
from distributors. I think Carmanah was carrying some, but that was awhile
back.
--
Paul
William,
I know you asked Jeff but thought I would respond as all we do are off
grid, battery based systems. I typically see that the Vmp voltage of
Sunpower modules is closer to spec with than with Kyocera, Sharp or
Mitsubishi. In my opinion Sunpower modules are only surpassed by
Sanyo.
Jeff:
Have these modules worked for you in battery based systems?
William Mill
At 01:27 PM 3/19/2009, you wrote:
Hiya Jeff,
You are correct that the sunpower modules are positively grounded. You are
also correct that sunpower only deals with dedicated "dealers". That means
that if you are
Mitsubishi also makes a black framed
module.
Todd
Jeff Blick wrote:
Hiya Jeff,
You are correct that the sunpower modules are positively grounded. You are
also correct that sunpower only deals with dedicated "dealers". That means
that if you are not one of their dealers you cannot get the
.
Certified Sustainable Building Adviser
www.openhandsolar.com
505 795 8646
?I'd put my money on solar energy? I hope we don't have to wait 'til oil and
coal run out before we tackle that.?
?Thomas Edison
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Hi Jeff,
We have sold the quite a few Sunpower 90's. After they became
unavailable, we started purchasing CTI 90's (Carmanah Tech.) made with
the Sunpower cells. Both modules have exceptional performance in high
heat. The efficiency and temperature coefficient is second only to
Sanyo. The
We have installed systems using many different module brands and sizes, but so
far we have not installed Sunpower modules.
When we checked their web site it appears they only deal with their own
"dealers". Since we buy hardware from many different national distributors,
are these available wi
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