Energy Observer is the first hydrogen powered boat that will sail around the world. Its value is 5.5 million dollars, and it will tour the world for 6 years. It is powered by wind (wind turbines and dragons), solar energy, and hydrogen. Hydrogen is produced via water electrolysis in a way that seawater is first desalinized and then used in the electrolyzer. Produced hydrogen is pressurized in the storage tanks.