At the Smart City Expo World Congress in Barcelona, the unveiling of H2TRUCK marked a significant development in Spain's urban transport landscape. The collaboration between Irizar and FCC Medio Ambiente introduced the first electric chassis platform for heavy urban transport vehicles manufactured entirely in Spain. The platform's innovation lies in its hybrid system comprising hydrogen fuel cells and lithium-ion batteries, offering advantages such as reduced weight, energy savings, increased payload capacity, and quicker charging times, ultimately enhancing vehicle autonomy. The operational prototype, a refuse truck, underwent extensive testing on real waste collection routes in various Spanish cities, demonstrating its practicality and efficiency. With FCC Medio Ambiente's large fleet, incorporating 1,600 electric vehicles out of 20,000, this initiative signals a significant step towards sustainable urban transport. The platform's adaptability for urban service vehicles with 100% electric traction, plug-in capabilities, and fuel cell-powered electricity generation highlights its versatility. The companies involved emphasized their preparedness for a multi-technological future, positioning the Irizar ietruck as a symbol of innovation and sustainability in the transportation sector.