bound4blue is a Spanish company that has developed an innovative wingsail technology for maritime transport vessels. Their patented eSAIL system is a rigid wingsail based on aeronautics principles that harnesses wind power as a renewable energy source for propulsion. By utilizing wind energy, the eSAIL technology reduces fuel consumption and pollutant emissions by up to 40% for vessels such as merchant ships, fishing boats, and passenger vessels. bound4blue offers two types of wingsails - a foldable wingsail suitable for vessels with space and maneuverability constraints, and a suction-based eSAIL wingsail designed for smaller vessels and more affordability.
The eSAIL system features an autonomous control system that optimizes its operation through body rotation, flap positioning, and suction control based on input from multiple sensors. This automation ensures maximum fuel savings while guaranteeing the safety of the device. The eSAIL technology complies with the new International Maritime Organization (IMO) regulations and aligns with the goals of the European Green Deal for a more sustainable maritime industry.
bound4blue's wingsail systems have already been installed on several vessels, with the company reporting fuel savings of up to 15% for early adopters. As of January 2024, bound4blue had signed agreements with major international shipping firms like Marubeni Corporation (Japan) and Louis Dreyfus Armateurs (France) to equip their fleets with the eSAIL technology.
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