Optimal sizing design of an isolated micro grid keeping the longest battery lifetime

The best choice of the different components of a micro grid and the optimal sizing design of them represent an important and crucial task. In this paper, a methodology is presented to determine the optimal sizing design of an isolated MG composed of photovoltaic panels, batteries and an industrial load. This method is based on the compromise between the reliability system, the economic cost and the longest lifetime of battery. Increasing the battery life leads to the minimization of the total micro grid cost and also the best operating of the micro grid. Simulation results are presented and discussed in this work and the effectiveness of the proposed methodology is proven.