Solar Airships to transport Cargo at 30,000 ft ?

Solar electric zeppelins

Could a solar-powered dirigible be the cargo ship of our peak-oil, carbon-constrained future? If the inventor of the patent pending High Speed Solar Airship is correct, the future of long haul cargo solar power

HSSA 60 KW SOLAR

The HSSA would be powered by 24,000 square feet of thin-film solar cells in an integrated application on top of the balloon – for 62.7 KW of rated power.

source: cleantechnica.com | solarairship.net

The 320 foot long airship could reach daytime speeds of 182 MPH utilizing a 96 MPH average Jet Stream wind speed,

and even continue flying at night with a speed of 165 MPH, carrying 60 tons of cargo, and 2 million cubic feet of helium.