Design and Analysis of Photovoltic System for a House in Model Town Lahore Using Homer Pro

This paper presents a detailed performance evaluation of an 11 kW grid-connected photovoltaic (PV) system installed at a residential site in Lahore, Pakistan. The study focuses on assessing the system's economic, environmental, and operational benefits, offering insights into its viability for reducing energy costs and carbon emissions. The analysis shows that the PV system achieves a penetration level of 89.6%, providing nearly 90% of the site's energy demand from solar power. Annual energy cost savings amount to 65%, with a favorable payback period of 1.97 years and an internal rate of return (IRR) of 50.7%. Additionally, the system reduces CO2 emissions by 42.4%, aligning with global sustainability goals. These results suggest that rooftop solar PV installations in urban residential areas in Pakistan offer significant financial and environmental advantages.