"water-cooled" solar panels

[Rabrsniver]

I have read that solar panels are more efficient when they are cooler. Would it be feasible to install a drip or mist water system (on a timer of course) that would wash water down the panels to keep them cooler? Or would the water act as a filter and keep the sun from getting to the panels?

[cr8zy1van]

I also had the same idea, but I wondered if I could run tubing behind the cells,
encased in plastic. Kind of like a watercooled heat sink, I have a couple extra
cells, and could even use them to power a small pump to move liquid around. I
dont want to over complicate things, but would like the best performance out of
this thing. Since I am still waiting for my plastic resin to show up, I can
still add tubing If its a good idea. I posted my progress
here if anyone wants to follow.

[pyrocasto]

It may work but I think you would be better off finding a way to cool the inside of the panel. Maybe a mini heat exchanger to fit in the back of the panel behind the cells.

Just remember not to use 10 watts to make 5. ;-)