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For several years, awareness of the impact of boats on the marine ecosystem has led boat manufacturers and sailors to rethink sailing practices. The most environmentally friendly is undoubtedly yacht, as it uses the strength of the wind to propel itself.
For those who prefer motorised propulsion, energy efficiency and low-cost solutions already exist and are implemented by bodies involved in the industry: propeller and/or engine design to reduce energy consumption, particulate filter-scrubber solutions (water-based flue gas scrubbing system called “scrubber” to capture toxic particles), rotorsails or turbosails (concepts based on a rotating cylinder that uses the Magnus effect to increase the propulsive sail carrying power of the boat), direct injection in fuels (injection of hydrogen admixtures or other with a view to reducing emissions by 20%), 100% electric or hybrid thermal-electric propulsion, LNG or bioLNG (20% reduction in CO2 emissions), E-fuels (liquid fuels combining CO2 (fatal) and hydrogen produced from low-carbon electricity such as e-methane, e-ammonia), etc.
The R&D departments of manufacturers, engine manufacturers and new start-ups at the cutting edge of technology are constantly experimenting with new means of propulsion to combine the pleasure of sailing with respect for nature.
Here is a selection of innovations to discover from September 12 to 17 at the Cannes Yachting Festival:
