[RE-wrenches] Sunpower modules

[Paul Israel]

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.


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Paul N. Israel, President
Sunlight Solar Energy, Inc.
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On 3/19/09 5:46 PM, "William Miller" <william at millersolar.com> wrote:

> 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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