Indeed, but electricity generating solarthermal, where some fluid medium is heated by mirrors and drives a turbine, is a bit more complex, with a few more cost and maintenance risk factors, and very much at its infacy... Pilot plants of this type exist and operate since the nineties, but claims that the price could soon be reduced to market levels also exist since the nineties, yet nothing has been built for 15 years. Presently, some new plants are built in Spain and the USA, so we'll see whether those ambitions in economics can be realised. Until then, it needs feed-in tariffs, too.

Should your diarybe understood as a critic of solar PV

MfM quite clearly states that he thinks solarthemal is the way to go in the exploitation of solar energy, and criticises PV. (And I challenge those criticisms as unfounded and based on mistaken assumptions.)

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