[RE-wrenches] Solar power Magic

[David Katz]

Bob-O
I see a use for SolarMagic from National Semiconductor in large systems 
with many parallel strings, installed by inexperienced contractors who 
put some of the strings in the shade, not realizing how little you  get 
with minimal shading of one string in parallel strings of modules.  They 
might have to buy these to appease the system owner who is not getting 
what they expect from their system.
They Tigo converter is very interesting and has an MSRP of $56.  At this 
price it will make some sense.
Cheers,
David

David Katz

President

AEE Solar

1155 Redway Drive

P.O. Box 339

Redway, CA  95560

Tel (707) 825-1200

Fax (707) 825-1202

david at aeesolar.com <mailto:david at aeesolar.com>

www.aeesolar.com <http://www.aeesolar.com>

 

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Bob-O Schultze wrote:
> Hiya Dana,
> No to all those things, but... I'm told they are about $200 a pop. Say 
> they increased output by a total of 5%. Seems unlikely, but say they 
> did. Speaking in retail, $200 represents what these days... 40 watts 
> or so including racking, give or take? Say you are using a 200W 
> module. 5% = 10W. Hmmmmm. I can envision some tight spots where that 
> might pencil, but not many.
> Bob-O
>
>
> On Jul 26, 2009, at 5:41 PM, Dana wrote:
>
> Does anyone have any experience with these units?
>  
> Do they work with off grid lower voltages?
>  
> Do they work with all controllers?
>  
> Do they affect MPPT function positively or negatively?
>  
> Do they work well with Grid tie?
>  
> How would you gauge the increased performance?
>  
>  
> Dana Orzel
>  
> Great Solar Works, Inc
> www.solarwork.com <http://www.solarwork.com>
> E - dana at solarwork.com <mailto:dana at solarwork.com>
> V - 970.626.5253
> F - 970.626.4140
> C - 970.209.4076
> “I'd put my money on solar energy… I hope we don't have to wait 'til 
> oil and coal run out before we tackle that.”
> —Thomas Edison, in conversation with Henry Ford and Harvey Firestone, 
> March 1931
>
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