Decentralized production of electricity and heat with high conversion efficiency and zero emissions is one of the most ambitious but needed target for the near future, especially for cities that want to adapt their structures to a smart grid concept. . In this new scenario, fuel cells (especially high temperature Solid Oxide Fuel Cells - SOFC) could be one of the most valuable options for the transition, due to their ability of producing both electricity and heat at the highest available efficiency, with near zero pollutants emissions (NOx, SOx, particulate, etc.) and avoiding transmission losses from the grid. This work aims to analyze the techno-economic impact of the application of SOFC cogeneration (CHP) systems in the supermarket sector.