[RE-wrenches] Sunpower modules

William Miller william at millersolar.com
Thu Mar 19 17:46:33 PDT 2009


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 not one of their dealers you cannot get their panels.  It is
>my understanding that sunpower is always looking for new dealers, so you may
>want to check in with them.  As far as architectural review committees and
>such, we have never had a problem using SPR modules in the areas where
>review is an issue.  The positive ground really does not affect aanything.
>Instead of your negative wire being the grounded (white) conductor it is
>your positive conductor that is grounded.  This means you are switching the
>negative instead of the positive in the DC disco.  Sunpower sells packaged
>systems, so they provide positive ground inverters from different
>manufacturers.
>
>Evergreen now has a black framed module, and I believe Sharp does too.  I
>hope this helps, any other questions feel free to contact me.
>Jeff Blick
>Lead PV Installer
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