In this study, off-grid photovoltaic (PV) systems for domestic use in Visakhapatnam, Andhra Pradesh, India, were examined. PVsyst and MS Excel-based design tools are used to optimize the PV system setup while taking local considerations into consideration. For exact electrical circuit and comprehensive panel layout, AutoCAD is employed. Through thorough simulations that measure efficiency, energy output, and long-term economic feasibility, the PVsyst software is used to test and evaluate system performance. A sustainable and environmentally friendly alternative to traditional power sources, the study shows that off-grid PV systems have enormous potential for supplying Visakhapatnam’s household energy demands. The suggested system suggests 13 panels, 12 batteries, a 1430 W inverter, and a 67.70 A charger controller based on Visakhapatnam’s geographic coordinates (latitude: 17°, longitude: 83°), which are also taken into account, as well as the actual temperature (28 °C).The peak sun hours (PSH) are 2.83, providing customers with a steady source of energy all year long. Adopting renewable energy can help homes become more energy independent and lower their carbon impact. These findings contribute to the global promotion of sustainable energy practices and the acceptance of renewable solutions by offering useful insights for the implementation of off-grid PV systems in comparable locations.

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