[RE-wrenches] Three-phase off-grid

[Jeff Clearwater]

Hey Allan,

SMA is about to release a 6 KW version of the 5 KW SI if that figures in 
your considerations at all.  And of course the advantage of the SI is 
you can feed power into the micro-grid anywhere along the backbone 
without AC coupling relays in true off-grid mode. But to stack 6 you'd 
need a Multi-cluster box I do believe.  It does get expensive.

Have a good weekend!

jc



Allan Sindelar wrote:
> Wrenches,
> We have been asked for a design for an off-grid system to reduce 
> generator runtime for a mountain resort. Initial projections 
> (consumption measurement results not yet available) suggest 15-20 kW 
> of PV and around 30 kW of inverter capacity. However, the generators 
> and existing wiring are three-phase 120/208.
>
> My assumption is that our only options are a set of six Sunny Islands, 
> or 9-12 Outback GVFX3648s. Are there any other options or approaches 
> that I'm missing?
>
> Thank you, Allan
> -- 
> *Allan Sindelar*
> _Allan at positiveenergysolar.com_ <mailto:Allan at positiveenergysolar.com>
> NABCEP Certified Photovoltaic Installer
> NABCEP Certified Technical Sales Professional
> New Mexico EE98J Journeyman Electrician
> *Positive Energy, Inc.*
> 3201 Calle Marie
> Santa Fe, New Mexico 87507
> *505 424-1112*
> _www.positiveenergysolar.com_ <http://www.positiveenergysolar.com/>
>
> *
> *
>
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