Design and Graphical Analysis of 8-kW Off-Grid Solar Photovoltaic Power System

In this paper, a 8-kW off-grid photovoltaic system is presented for Korba Collectorate Office which is situated in mid-Korba District, Chhattisgarh. This off-grid system comprises 30 solar photovoltaic panels, battery bank, solar power conditioning unit, lightning arrestor, distribution panels and important electrical components such as MCCB and conductors. The rating of all these equipments is mathematically calculated and presented. The expected energy of this system is obtained by the System Advisor Model (SAM) Software designed by National Renewable Energy Laboratory (NREL). Finally, the simulation result of the system is presented and compared with the actual output measured from the system. This off-grid system reduces the dependency on grid and promotes power system security, and it also offers financial saving up to 16,000 rupees every month.