> By day, the solar panels will run the airship's electric propulsion systems, while also banking up extra power for the overnight haul by electrolyzing water i

> By day, the solar panels will run the airship's electric propulsion systems, while also banking up extra power for the overnight haul by electrolyzing water into hydrogen. By night, the hydrogen will run through a fuel cell, providing the juice to keep going. Deja vu about airships + hydrogen... Hindenburg?