The purpose of this paper is, on the one hand, to set up management models of different elements of a self-sufficient hybrid electrical system adapted to the potentials of our isolated West African rural areas of the network, and on the other hand to set up an energy management system able to dynamically find an energy consumption policy while taking into account services requested by users, load various constraints and energy source availability. The management strategy aims to adapt the energy consumed by consumption sources to that supplied by the renewable production sources of the system. It is based on the shift, interruption, reduction, or increase of the power requested from one or several controllable consumption sources of the system. The suggested strategy which is based on the flexibility of consumption sources has made it possible to significantly reduce the lost energy that accounts for a significant gain from an economic point of view. It improves the use of the energy produced by modifying the charge profile. Proposed strategy privileges the functioning of the critical charges.