I’ve thought for a long time that using waves to generate electricity was the (groan) wave of the future, but I never thought of a wave powered boat.

Two fins mounted side by side beneath the bow move up and down with the incoming waves and generate dolphin-like kicks that propel the boat forward. “Waves are a negative factor for a ship—they slow it down,” says Yutaka Terao, an engineering professor at Tokai University in Japan who designed the boat’s propulsion system. “But the Suntory can transform wave energy into propulsive power regardless of where the wave comes from.”

At present this doesn’t move the boat very fast, but waves are more consistently available than wind and I would expect that as the technology develops it might become more competitive. Score another win for biomimetics.