Reply #9: what is the holdup for the high efficiency stuff?

[rfkrfk]

cost, operating life, efficiency goes down with operating time?
degrades when exposed to sunlight?

anybody have links to ...serious... attempts at high efficiecy cells?

I sorta don't believe the claims, sometimes

my experience with this kind of thing is...
if you hit the jackpot with an individual
piece of something that is much better than average,
in six months of use, it degrades to being just average