[Greenbuilding] Fresnel lenses box solar cooker

[Topher]

On 6/2/2013 7:08 PM, RT wrote:
>  he did mention "concentrating photovoltaic (CPV)" systems that were 
> becoming viable which utilise Fresnel lenses to concentrate sunlight 
> so that solar arrays could be reduced to the size of [his] thumbnail.

I don't think I want one on my roof though.  My current plans are for 
about 2000 watts of cells.  That's 8000 watts or so of heat that needs 
to be dissipated.  All concentrated on 1 square inch.  I would know how 
ants feel...

Plus of course, you still need the same size roof installation.  It is 
still all about/intercepted/ sunlight.

I come back to the thing I have been saying for years.  If you aren't 
making solar CHEAPER, you aren't helping.  Fortunately, there are people 
who are making it much cheaper.  It is about 2 cents per kWh, cheaper 
than power company electrons here at the moment.

Thank You Kindly,

Corwyn

-- 
Topher Belknap
Green Fret Consulting
Kermit didn't know the half of it...
http://www.GreenFret.com/
topher at greenfret.com

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