Take one of these short term pieces of cheap vinal
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=42239&item=4363923325how would you run it down inside the pannel, then put the cells on top.
but more importatally, how would you remove the cells off the top, replace the vinal after it got wasted in the sun, and replace it and the cells.
its not like the cells can be on fold up pannels :-)
somone mentioned attaching the solar cells themselves to the TOP of the pannel, not the bottom. the problem with that is any thing hitting the top, then impacts the cell. i still thought there was some brilliance in the idea. we always think put cells in, attach top.
if a tempered glass at 500+ lbs was used and it could be folded back to access the bottom of the cells, and the water jacket, all you would need is 10 People to help you do it :-)
running copper pipe lines vertically , attached to aluminum (water heat collection) back plate, would be far more practical. but i cant imagine the costs of that.
so now i have 6 layers,
the wood back plate,
the copper pipes
the aluminum collection plate
the conductive insolation
the top pannel
$$$$
hmm what would stop the conduction of the cells power, but allow the conduction of heat. mabey simple silicoln sealer.
silicoln is not GOOD for 20 years, it ages exposed in less than 10, but it would not be exposed, to the sun or the air, for the majority of it.
besides the extensive horrendous costs of all that, what els would be wrong :-)