The global energy transition is one of the defining challenges of our time: reducing greenhouse gas emissions, while guaranteeing reliable and affordable energy supply, requires more efficient, flexible and economically viable technologies based on renewable sources. Among the different solutions under research, hydrogen-based technologies have gained relevance in the last years and they could play a role in the decarbonization of energy-intensive sectors. In particular, fuel cells have attracted increasing attention, with Solid Oxide Fuel Cells (SOFCs) emerging as one of the most promising options. SOFCs combine several advantages like high operating temperatures, electrical efficiencies above 60% or even higher, flexibility in terms of fuel choice as they can work with hydrogen but also with natural gas, biogas or syngas.