Solar concentrators driving PV cells are a well established technology.
Their main gain appears to be the possibility of greater conversion
efficincy. It's not obvious to me what else they are offering that's
especially useful.

A big challenge with existing concentrator cells is dealing with the therma=
l
energy that doesn't get converted to electricity. At the 100:1 concentratio=
n
level they mention that's 100 kW/m^2 at full power.
A red hot radiant element on a stovetop is running at around 25 kW/m^2, so
getting the heat out of the cell is "interesting".


          Russell
--=20
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.