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solar cells into panels

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Posted by marcin_ose on June 4, 2008, 2:55 pm
 
Hello,

We just got a number of these solar cells:

http://openfarmtech.org/index.php?title=Solar_Cells

Does anyone have experience in making panels out of cells? We are
looking to make a number of 24 v panels - and are interested in
procedure and materials sourcing information - for making panels that
will last through the elements.

Thanks,
Marcin
http://openfarmtech.org/weblog/

Posted by BobG on June 5, 2008, 12:57 am
 
PV panels are a bunch of .44v cells in series, and a 'traditional' 12V
panels is 18-20V open circuit. However, MPPT charge controllers are
very smart and flexible and some have wide input and output ranges.
Look at the solarconverters site. I had an idea you could put 6 in
series for a 2.6V output, have that charge up a Maxwell 350F 2.7V cap,
then get a COTS DC2DC converter to up the 2.7 to whatever. Dont know
why I think this rig might be 'better', buts it sounds easy to try.

Posted by LU Wei on June 5, 2008, 7:22 am
 marcin_ose wrote on 2008-6-4 22:55:

It's not easy to assemble panels at home. Not just the soldering work,
the cells must be covered by some plastic material, or the cells will
not work at their best and will deterioate. If you've got plenty of cells,
you can go for a panel manufacturer's help.

--
Regards,
LU Wei

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