That's catamaran, not kitty, in case you were wondering. I'm not sure what the use of this really is, besides a display of technology, as most catamarans already run on a renewable resource, the wind in their sails.  But the Sun21, which sleeps six and will be crossing the Atlantic ocean in under a year, will be the first vessel to cross an ocean using nothing but photovoltaic power.

The consortium sponsoring the effort, Transatlantic21, has this to say for itself: "Demonstrating the potential of solar power is the objective of Transatlantic21. In September 2006, sun21, which has been constructed specifically for this purpose, will begin its journey from Basel to New York. It will be the first solar boat ever to cross the Atlantic: entirely dependent on sunlight, not consuming one drop of gasoline."

Via TreeHugger