How much power does solar panels actually generate?

smkettner wrote:

Acei wrote:
This was what I had in mind before, but I think I will just simplify the setup and go with Panny(Sanyo) HIT 240S 240w x 3 setup. I read up more on the efficiency on these HIT setup, and they seem quite decent on shady conditions as well.

Efficiency just allows a smaller panel. 240w high efficiency will produce the same as 240w normal efficiency. No need to spend much extra unless a couple inches off the size makes a big difference.