Barcelona is preparing to debut Spain's first hydrogen-powered articulated buses, a significant step towards sustainable public transportation. These two buses, each with a length of 18 meters and a capacity to accommodate more than 100 passengers, will begin operating on the D20 line in Barcelona, connecting the Passeig Marítim and Ernest Lluch street. The acquisition of these buses is part of Barcelona Metropolitan Transport's (TMB) initiative to enhance its fleet with eco-friendly vehicles. Currently, the TMB fleet comprises 46 hydrogen vehicles, representing 5% of the total bus fleet, along with 196 electric buses. Laia Bonet, the president of TMB, emphasized the organization's commitment to innovation and decarbonization through the integration of zero-emission vehicles. With a vision for 10% of buses to be hydrogen-powered in the future, TMB aims to stay at the forefront of technological advancements. Mario Canet, the head of Projects and Innovation at TMB, highlighted the benefits of hydrogen buses, including their long-lasting batteries, faster recharging times, and lighter weight compared to electric alternatives. These features make hydrogen buses a promising solution for sustainable urban transport. The introduction of these articulated hydrogen buses underscores Barcelona's dedication to environmental sustainability and marks a positive advancement in the city's public transportation sector.