The Innovations

Only consume what we are capable to producing, and no more than what nature can give us: that's what the boat and crew manage to do on a daily basis!

While the crew of Energy Observer continues to navigate the Atlantic without being able to set foot on land, another team is holding its breath: that of Energy Observer Developments (EODev), whose REXH2 is currently sailing on the first hydrogen vessel around the world.

Energy Observer’s first transatlantic passage, from Finistère to Martinique, served as a test bed for this year’s key innovations in renewable energies aboard the floating laboratory.

Toyota and Energy Observer Developments (EODev), a subsidiary of Energy Observer and an incubator for affordable hydrogen mobility solutions, have jointly developed a fuel cell system integrating the fuel cell within the Toyota Miraï to equip Energy Observer, the first hydrogen ship around the world.

During the “Hydrogen, the Right Move at the Right Time” day, organized by AFHYPAC at the “Maison de la chimie”, Energy Observer announces the launch of Energy Observer Developments’ industrial activities, thus confirming its desire to deploy clean systems for everyone.

During the Monaco Solar & Energy Boat Challenge, Energy Observer announces the launch of Energy Observer Developments. The ambition of this new phase of the project is to propose disruptive, innovative, optimized and accessible solutions to various maritime and port communities.

Energy Observer chose complementary storage systems: short-term storage in a set of Li-Ion batteries, and eight hydrogen tanks for long-term storage.

Hydrogen has a very high energy content: for the same weight, it contains up to three times more energy than diesel, and 2.5 times more than natural gas. That said, we know how to store natural gas in tanks or pipelines. Storing hydrogen is more difficult.

Currently, 95% of the world’s hydrogen supply is from fossil fuel, through a reforming process using methane, the main component of natural gas. Electrolysis using a renewable energy source is a solution for the future use of green hydrogen on a large scale.

The Energy Observer is equipped with a reverse-osmosis desalination system with several levels. When two volumes of water – one salty and the other not – are put together, natural movement is created: the fresh water is attracted to the salty water.

The fuel cell is the centrepiece of the hydrogen chain. It converts the hydrogen into electricity by reversing the electrolysis process. The system on Energy Observer was tailor-made by CEA-Liten engineers and provides 20 kW of pure electric power.

The experimental catamaran has clocked up 16 months of full-on sailing. Roland Reynaud, engineer on board, and Didier Bouix, engineer at the Atomic Energy Commission (CEA-Liten) carried out a full check of Energy Observer’s on-board hydrogen chain. And all’s well!