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From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf
Of Ray Walters
Sent: Thursday, August 21, 2014 12:47 AM
To: RE-wrenches
Subject: [RE-wrenches] Sunpower off grid?
Greetings fellow Wrenches;
I have a customer that just purchased some Sunpower E20 -435
Of Ray Walters
Sent: Thursday, August 21, 2014 12:47 AM
To: RE-wrenches
Subject: [RE-wrenches] Sunpower off grid?
Greetings fellow Wrenches;
I have a customer that just purchased some Sunpower E20 -435 modules somehow
from Ebay, and wants me to design a backup power system for him.
This system would
Hello Ray,
I have been installing SunPower cell modules for about a decade. All of our
mobile installations are ungrounded arrays, off grid we use negative ground. We
have never had any issue using them to charge batteries up to 48 volts, even
when combined in series. I have not installed any
Good info Larry, do you think the frame is problematic enough that it
wouldn't work with regular top down type hardware?
My customer also confirmed he had no labeling on his modules.
R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design
I have used the Sunpower 327 modules with Radian inverters and Charge
controllers it does get connected backwards and it works fine, I have a
mobile system that is also SunPowered with Outback FX inverters. Outback
has a white paper on this type of application. Regarding the modules well
good
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