Conference Hydrogen and Fuel Cells organized by the Spanish Association of Fuel Cellslunes, 30 abril 2018 Dual and sustainable energy systems: challenges and opportunitiesThe objective is to raise awareness of the energy challenges faced by the land, aerospace and naval industry, and how new technologies, based on hydrogen and fuel cells, can respond to these challenges within the framework of a sustainable development. Efforts in research and innovation, as well as in technological development, are still necessary for its introduction into the market in a competitive manner.