A key objective of this paper is to minimize several fixed and operating costs for chosen RES systems and to examine their cost performance. . By integrating solar modules, batteries, and intelligent monitoring, telecom operators gain enhanced resilience, reduced operational costs, and significant environmental benefits over diesel generators. REopt determines the cost-optimal sizing and dispatch of generation and storage technologies for grid-connected sites or off-grid microgrids. This energy is stored in batteries for use. . This paper presents modelling and simulation of a PV array of household connected loads. Here we use a PV system with an MPPT algorithm to track the max voltage and power output from the system. Off-Grid is a part of the power distribution system which uses renewable energy-based power generation. . Renewable energy system shows numerous combinations built on the basis of renewable sources that can be practiced together to provide power in the form of a dedicated off-grid system supported by battery-bank storage and diesel generator as backup systems. The system is designed to optimize energy costs. .
