Since 1996, the basic structure of the Brazilian electric sector has been changing dramatically. However, these changes have not brought great improvement in terms of electric energy diversification, considering that thesector s energetic matrix is basically concentrated in a single source - the hydraulic. The objective of this study is to develop an analytic framework with the necessary/desirable resources and competencies to explore the nuclear-electric energy in Brazil. The investigation was carried out through the case study methodology and had Electronuclear - Brazil s state-owned nuclear energyproducer - as object of study. Data collected through documental/telematic investigations and mainly structured interviews, were handled with qualitative and quantitative methods. The data interpretation and analysis were conductedbased on the theoretical references from the literature review, with the support of the systemic and integrative model - traditional and relational versions - developedby Macedo-Soares(2000 e 2002). After that, utilizing the Analytic Hierarchy Process, the resources and competencies were organized in different groups and classified by priority, according to managerial perceptions. The resultshighlight inconsistencies between the firm s strategy objectives, its financial resources, the political macro-environmental factors and the strategic actors. Among therecommendations made as a result of the research, the framework of resources and competencies shows the more relevant groups and emphasizes some aspects that need effective actions in order to explore the nuclear-electric energy in Brazil.