[en] The author discusses the long term future of the French electric power system. He first notices that growing uncertainties and an always wider field of possibilities should leave the room to possible disruptions. He outlines that the assessment of the electric power volume to be produced is an unavoidable prerequisite which must encompass a global vision of the different energy vectors in the scenarios, and that the choice between these scenarios is related to the debated issues. It is thus necessary to identify conditions for success and the technological bets associated with the different trajectories. He notices that some important debates are however not addressed only through complex systemic modellings, and that there must be back-and-forth between political orientations and technical analyses.