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Building your own solar panel

Posted: Mon Feb 05, 2007 5:35 pm
by purple.hippy
hi does anyone have any info on making a "proper" solar panel yourself from hardwear store stuff. the only ones i could find online were little ones that can't power anything. any info would really help. thanks loads

Purple :flower:

Posted: Mon Feb 05, 2007 7:34 pm
by Muddypause
Do you mean solar electricity (photovoltaic, or PV calls), or do you mean solar heat?

The former does not really lend itself to easy hardware store stuff. The ones I know about are made from silicon semi-conducors, and involve fairly complex manufacturing techniques.

But solar hot water is probably more practical. The most efficient solar collectors on the market involve a vacuum tube (a little in the fashion of a thermos flask), and so may not be very practical to make yourself, but a simpler type could be made from an old radiator, painted matt black, and mounted behind glass. Water circulates slowly through this, collecting heat from the sun, and then flows through a coil in a water tank, where it gives up its heat to the water in the tank.

There is a brief how-to here.