Energy Observer in Öresund

My first impression when I saw this boat last night: What a strange looking sailing yacht! Actually it was one of the most interesting boats in the Sound this summer: Energy Observer - the first hydrogen vessel in the world.

Here is some background:
"Energy Observer, launched in April 2017, is the first vessel in the world to both generate and be powered by hydrogen. Developed in collaboration with engineers from the CEA-LITEN [fr] the boat will test and prove the efficiency of a full production chain that relies on the coupling of different renewable energies. Following its launch[1], the boat left in the Spring 2017[2] for a world tour lasting 6 years in order to optimize its technologies and lead an expedition that will serve durable solutions for energy transition. The boat was nominated first French ambassador of the Sustainable Development Goals by the French Ministry for an ecological and solidary transition." (Wikipedia)

"Energy Observer is the first hydrogen vessel, aiming for the energy autonomy, with zero greenhouse gas emissions or fine particles. This former race boat, an outstanding competitor has been fully transformed into a vessel of the future, powered by electric propulsion thanks to a mix of renewable energies and a hydrogen production system that produces carbon-free hydrogen on board using seawater."

http://www.energy-observer.org/en/#bateau