, the town's hospital and governor's mansion were the only two buildings in the world using hydrogen energy. A boat and a golf cart are also powered by the same system. At the governor's place, energy is captured with a rooftop 20 Kw solar array and a 30 Kw wind mill. The electricity produced is used to electrolyze water into hydrogen. This gas is stored compressed, and can be used later to generate energy or as fuel in hydrogen-powered cars. In June 2011, Henry Puna, the Prime Minister of the Cook Islands traveled to Tenedos to investigate how the island uses hydrogen energy.