Enticingly named Ascent Solar, a maker of thin-film solar pv modules, said it expected to receive $21.6 million from the exercise of the warrants. The upshot of this was the stock soared over 15% on the 25th June, since when it has come off a little bit, dropping 5.36% yesterday.

Like several other thin film manufacturers, Ascent Solar believe they have the solution to lowering solar prices. Their techology uses a plastic film or substrate coated with thin-film PV. As this picture shows, it is flexible and light weight. But does that really matter?

Not for buildings, but very conceivably for flight. Like this solar-powered blimp made by
Lockheed Martin HAA. Lighter-than-air, solar-powered High-Altitude Airship is designed to hover for more than a year at 60,000 ft. A prototype is scheduled to go aloft in 2010.