Groundbreaking Unmanned Boat Powered by Water and Solar Energy

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Representational image of boat

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At CES 2025 in Las Vegas, South Korean company K Watercraft introduced a revolutionary unmanned boat that utilizes water as its primary fuel source, paving the way for a sustainable future in maritime technology. This innovative vessel features a self-sufficient hydrogen production system that uses solar energy to power electrolysis, converting water into hydrogen for fuel.

According to Interesting Engineering, the boat operates with a proton exchange membrane (PEM) fuel cell system, which efficiently converts the hydrogen into electrical energy to power the vessel’s electric motor. K Watercraft’s design also includes an energy storage solution in the form of an ESS (Energy Storage System) battery. Remarkably, the vessel can run for an hour on just 500 milliliters of water, showcasing the efficiency of this technology.

The unmanned WB-UM2 boat boasts a 2.0 brake horsepower (BHP) electric motor and a fuel cell output of 300 watts. It weighs 50 kilograms and has a hydrogen production rate of four liters per minute, which ensures consistent performance.

K Watercraft’s focus on eco-friendly technology highlights the potential of unmanned vessels in a variety of applications. The boat’s ability to operate autonomously makes it ideal for tasks such as offshore rescues, marine surveys, and coastal erosion monitoring. The company also envisions expanding the technology to use seawater as the fuel source, further enhancing the boat’s potential for long-duration operations.

This sustainable approach aligns with K Watercraft’s broader goal to address ocean pollution and environmental degradation. By creating a zero-emission, self-sustaining vessel, the company aims to make a significant contribution to global efforts to preserve marine ecosystems. The WB-UM2’s design also offers versatility, allowing customization for applications like firefighting or crime prevention.

K Watercraft’s pioneering development of the WB-UM2 signals a new era for eco-friendly maritime solutions, positioning the company as a leader in sustainable technology for the seas.