Karl Vilacoba writes:
"San Francisco-based Wind+Wings Technologies is developing what is believed to be the world's first wingsailed catamaran ferry, a vessel designed similar to one the BMW Oracle Racing Team raced to victory at the last America's Cup. ... In ideal wind conditions, the ship could save as much as three quarters of its diesel costs compared to the oldest vessels in the Bay Area's existing fleet..."
Wind+Wings is still looking for a ferry company to purchase the technology.
"The hybrid ferries would be equipped with diesel engines for when the weather is uncooperative, guaranteeing that commuters reach their destinations on schedule."
Thanks to Karl Vilacoba