Optimization of the Energy Lack and Surplus in a Stand-Alone Photovoltaic System

Renew able energies represent a big interest for different researchers at international level. However, the intermittent character of these energies and the storage difficulties of such systems still hinder the emergence of this sector. Consequently, our research aims first to define and analyze different parameters that can contribute in the design of an optimal storage system appropriated to a stand-alone installation. The modeling of whole energy autonomous system and obviously the battery was studied. Two important characteristics particularly the energy Lack and Surplus were analyzed for a specified system in Morocco. Therefore, our study focused on a virtual stand-alone system located in rural area in Errachidia. This system was then designed, the battery was sized, and the lack and surplus were calculated for one year. The goal of this article is consequently to study the optimization of the Lack and Surplus without over or under sizing.