The project to build a hydrogen refuelling station at EMT's Entrevías operations centre involved the development of one of the first public infrastructures of its kind in Spain and the first in Madrid developed entirely by Spanish companies, including its design, construction and subsequent management, for which EMT Madrid is responsible. This infrastructure promotes non-polluting public transport using green hydrogen technologies, leading to clean, sustainable and zero-emission mobility. This refuelling station, which provides hydrogen instead of fossil fuels and offers a refuelling service for both light vehicles (cars, etc.) and heavy vehicles (buses, etc.), aims to further decarbonise Madrid's economy through a significant reduction in pollution in the city, as well as a considerable decrease in dependence on fossil fuels. The hydrogen refuelling station, which covers the entire hydrogen cycle (production, storage and distribution), integrates innovative hydrogen and fuel cell technologies in the transport sector. These construction works has received co-financing of €2,650,562.16 from the European Regional Development Fund and fall under its Objective 4: achieving a cleaner and more sustainable economy.