FGV Energia, within the scope of its research activities, has the FGV Energia Booklet as one of its main tools for investigating the obstacles and opportunities for specific segments of the energy sector. This booklet presents an in-depth diagnosis of the decommissioning activity in Brazil, through a survey of the perspectives of different players and aims to address opportunities, challenges and solutions, as well as to clarify society about the possibilities that are opening up with this activity in the country.