http://www.realestatejournal.com/buysell/agentsandbrokers/20070524-lacapra.html

From Gizmodo.com. 

Hey, there's going to be a half-price sale on solar energy this year, as soon as these way-cool solar panels from Solient Energy find their way onto your roof. In its first iteration that'll be available later this year, the devices work like a series of slats that track the sun.

Lenses inside these lightweight trough-like panels direct light to highly efficient solar cells, and the best news is that somehow these Solient guys have figured out how to manufacture these suckers at a price that's half as much as those old-timey solar panels we're using today.  Follow this link for more information: http://www.technologyreview.com/Energy/18718/