They argue solar thermal (also called concentrating solar power, or CSP) is getting cheaper fast, too, because of new, more efficient technologies.

FORBES: Solar Thermal Hopefuls Make Their Case, Battle For Financing

Utility-scale concentrating solar power (CSP) systems that produce electricity using lenses or mirrors to focus radiation on thermal collectors or photovoltaic cells draw criticism from environmental groups for taking up too much desert land, thus displacing certain animal and reptile species.

FORBES: Renewable Energy Delusions: Getting A Real Grip On Alternatives