German train company Stadler Rail has been at the forefront of innovation in the rail industry. The company recently achieved a major milestone by creating the world's first all-hydrogen train, breaking a Guinness World Record. Following this success, Stadler has expanded its efforts to develop a fleet of hydrogen and battery-powered train cars, specifically designed for branch rail services. This initiative comes as part of Stadler's commitment to reducing the carbon footprint of rail travel. The company's iconic RS1 Railbus, known for its unique design and flexibility to run on diesel or biodiesel, gained popularity in Germany and Czechia. As older train models like the RS1 are showing signs of wear and tear, Stadler introduced the RS Zero, a revolutionary train that can operate on either electricity or hydrogen power, emitting no CO2. This new train is lightweight and ideal for smaller rail lines, connecting seamlessly with the broader rail network. With a considerable portion of rail lines in Germany still incompatible with electric trains, the RS Zero's hydrogen capabilities make it a valuable asset for sustainable rail travel. Additionally, the train can utilize overhead cables for power, enhancing its adaptability in the railway industry's push towards eco-friendly transport solutions.