I looked up a few sites and wasn't sure myself (as indicated at the start).

little economy of scale.

Is that true? For all types of CPV? Does the requirement of tracking systems not result in economies of scale? For that matter, how big can a single concentrated solar unit (concentrator + single receiver solar cell) be? (I'm really asking, I don't know much of CPV.)

_{*Lunatic*, n.
One whose delusions are out of fashion.}