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Re: Feasible new approach to solar power use? - Metal bars thermal - Page 3

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Posted by azuredu on January 14, 2009, 5:39 am
 
On Jan 14, 2:58 am, maur...@tpg.com.au (Mauried) wrote:

thermoelectrics:http://wims.unice.fr/xiao/solar/thermoelectric.html

Current retail price around 5$/W, with tiny quantity and no market. I
know how to bring the price down to 1-2$/W when the market is there,
and to below 1$/W when the market is mature.

Don't confuse that with photovoltaic prices! A pv cell only works
around 1000-1500 hours a year, while the thermoelectric model coupled
with thermal storage (http://wims.unice.fr/xiao/solar/storage.html )
will work around 5000 hours a year. Therefore, 5$/W is already
equivalent to 1-1.5$/W.

Moreover, the rest of the equipment (collector, storage) will be payed
by the heat output, so the electricity only pays back the cost of the
generator. At 0.1euro/kwh electricity price, money back in 8 years
under the price of 4euro/W.

The product will hit the market within a year or so. Check this forum
or check the TV news. Before that, you have every detail in my site to
play with the thing.


Posted by FKohler on January 14, 2009, 1:44 pm
 

thermoelectrics:http://wims.unice.fr/xiao/solar/thermoelectric.html

Sorry, what product will hit the market? I mean, the concept
thermoelectric + parabolic trough or is there a company producing
ready-to-use systems for small (home) and medium scale?

By the way, congrats for the website, its really interesting. The
practical support to help people assemble their own system is really
nice!!

Posted by azuredu on January 14, 2009, 2:45 pm
 

Rather ready-to-install home kits. Medium scale thermoelectric method
is less interesting (better use an engine).

Check my site http://wims.unice.fr/xiao/solar/equipments-en.html
regularly. The kit should be called "home solar energy center". It
will be a highly modular kit, for example allowing your to start small
and grow gradually. But I hope you won't have headache configuring
your kit due to the many parameters.


Wish your success in assembling yours.


Posted by FKohler on January 14, 2009, 3:52 pm
 
I forgot to ask you: in your own system which served as an example in
the website, are you using a small turbine? Who is your supplier ? (if
you have any pic of the turbine, it would be nice)

Thank you

Posted by azuredu on January 14, 2009, 4:28 pm
 

No I have no turbine. My homemade trough is using PVC tubing and can
only heat water to 60C. No electricity output.

And I have never found a home turbine product. Either it's hard to
make, or nobody is making it because there is no market yet. In fact,
my trough is the first possibility you might have to make high
temperature solar heat at home with reasonable cost and
commercializable product. Even then, I am not yet at high temperature
version.

However, there is another possibility: combine parabolic trough with
photovoltaic cells to have combined heat and power solar energy. See
http://www.absolicon.com/ . For the time being, their product X10 is
too big and too expensive for home use, but we are discussing the
possibility of combining my trough technology with their pv receiver
to make a home product.

If our contact is successful, this will be the first commercial
product to hit the market. If you are impatient, you can write to
absolicon to ask them for the possibility of making home versions.
This would increase their awareness of the market and accelerate
things.

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