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<font size=3>Larry:<br><br>
Thanks for the reply. Can you use Outback and Xantrex charge
controllers with the positive ground?<br><br>
William Miller<br><br>
<br>
At 09:14 PM 3/19/2009, you wrote:<br>
<blockquote type=cite class=cite cite>William,<br><br>
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. I
realize this is anecdotal but after hundreds of installs you begin to
notice these things.<br><br>
Larry Crutcher<br><br>
On Mar 19, 2009, at 5:46 PM, William Miller wrote:<br><br>
<blockquote type=cite class=cite cite>Jeff:<br><br>
Have these modules worked for you in battery based systems?<br><br>
William Mill<br><br>
<br>
At 01:27 PM 3/19/2009, you wrote:<br><br>
<blockquote type=cite class=cite cite>Hiya Jeff,<br>
You are correct that the sunpower modules are positively grounded.
You are<br>
also correct that sunpower only deals with dedicated
"dealers". That means<br>
that if you are not one of their dealers you cannot get their
panels. It is<br>
my understanding that sunpower is always looking for new dealers, so you
may<br>
want to check in with them. As far as architectural review
committees and<br>
such, we have never had a problem using SPR modules in the areas
where<br>
review is an issue. The positive ground really does not affect
aanything.<br>
Instead of your negative wire being the grounded (white) conductor it
is<br>
your positive conductor that is grounded. This means you are
switching the<br>
negative instead of the positive in the DC disco. Sunpower sells
packaged<br>
systems, so they provide positive ground inverters from different<br>
manufacturers.<br><br>
Evergreen now has a black framed module, and I believe Sharp does
too. I<br>
hope this helps, any other questions feel free to contact me.
<br>
Jeff Blick<br>
Lead PV
Installer</blockquote>_______________________________________________<br>
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