Gerard D'Aboville is the captain of the Turanor PlanetSolar, the world's largest solar-powered boat. It’s a new experience for this seasoned sailor — having to factor in the sun — and he marvels at its power.
"I can feel it some days," D'Aboville told CBS News on a recent overcast day, while the solar ship was docked in Boston Harbor. "It's a lot of energy."
It’s the sun that powers the ship's 30,000 photovoltaic cells and provides its only means of power.
"We can go without sun for 72 hours,” he says. “Depends on what speed, if we go fast we do not have the 72 hours."