Daimler Trucks, a part of Mercedes-Benz, has reached a significant milestone in the development of hydrogen fuel cell trucks by introducing the Mercedes-Benz GenH2 trucks to the first customer fleet for testing. These trucks have been undergoing rigorous testing on test tracks and public roads to ensure their readiness for real logistics and transportation environments. The customer road tests in Germany involve partners like Air Products, Amazon, Holcim, INEOS, and Wiedmann & Winz, marking the start of a nearly one-year trial period. During this testing phase, the GenH2 trucks will be deployed on specific routes in Germany, catering to different long-distance transportation scenarios such as carrying building materials, shipping containers, and bottled gas. The trucks will be managed by Daimler Trucks and refueled at dedicated liquid hydrogen refueling stations. The GenH2 trucks are described as having a gross combination weight (GCW) of 40 tons and a payload of around 25 tons. They are equipped with a fuel cell system providing 300 kW power, complemented by built-in batteries that can offer an additional 400 kW for a limited time. The dual-motor design of these trucks allows for high power output and torque, supporting various operational needs. Key to the GenH2 truck's design is the advanced hydrogen storage system, featuring two stainless steel tanks with a capacity of up to 44 kg each. These tanks are designed for efficiency and safety, ensuring the reliable supply of hydrogen to power the fuel cell system. The overall goal of this customer testing phase is to assess the performance, efficiency, and feasibility of using hydrogen fuel cell technology in long-haul transportation applications.