In this context, this paper aims to propose a trusted simulation of a PV system designed under Proteus software. The proposed PV simulator can be used to verify and evaluate the performance of MPPT algorithms with a closer approximation to the real implementation. The proposed system supports 12V, 24V, and 48V battery configurations through a user-selectable interface with. This project proposes a photovoltaic (PV) model for the design of PV systems with a simple MPPT to achieve high efficiency, faster response and low cost. Those equations are established based on the equivalent circuit of the PV panel. The circuit contains some simple electrical components composed of a photoelectric current. Maximum efficiency and compactness for utility-scale energy storage projects.