Economic consideration of the long term in the energy choices related to the management of radioactive waste.

Summary At present, although most nuclear countries are converging on the same technical solution: deep disposal for the management of high-level and long-lived radioactive waste, the time objectives differ from one country to another. Through economic calculation, we wish to provide elements of an answer to the following question: In terms of temporality, how should the present generations, which benefit from nuclear electricity production, bear the burden of radioactive waste management, taking into account future generations? This thesis proposes to analyze specifically the French decision, taking into account its context. We propose a set of tools to evaluate the utility of the deep disposal project according to the choices of temporality. Our thesis also studies the feedback influence of storage choices on the nuclear fuel cycle. Beyond that, we take into account the interactions between deep storage and the choices of nuclear fleet and fuel cycle that constitute a "complete system".