Cheap solar

Ft.com has an article about the price of solar in the US. Obviously the process is facilitated by rising prices of other sorts of energy, particularly petroleum, but these folks contend that solar will compete on price within three years regardless. The comparison assumes comparison not with baseline costs of energy via natural gas, but with peak energy figures. Also, they assume that technology improvements over the next few years will let them cut costs by 20%, which may or may not be possible. Nonetheless, such an achievement would be impressive. h/t to Marginal Revolution