Energy Observer arrived in Paris earlier this week. The vessel is on a six-year mission, stopping in 50 countries, to demonstrate the effectiveness of using multiple energy sources to power a voyage. The trip also is intended to promote the research and use of alternative energy technologies.

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Originally a racing catamaran, Energy Observer has been refurbished into an alternative energy powerhouse. She’s equipped with solar panels, wind turbines and an electrolyser that can turn seawater into oxygen and hydrogen. The hydrogen is stored in a gaseous form that powers the vessel’s engines.