Solar PV Systems: Engineering Principles, Performance Optimization, and Sustainable Infrastructure: A Review

Abstract

This study provides a comprehensive overview of the global energy landscape, highlighting the critical shift from fossil fuel dependence to renewable energy integration. With global energy consumption having increased by (50%) and oil demand projected to reach (104.1) million barrels per day by 2026, the depletion of traditional resources and the escalating threat of global warming necessitate an urgent transition to sustainable alternatives. The text analyzes the environmental impact of greenhouse gases, noting that methane is eighty times more potent than carbon dioxide in driving temperature increases. The core of the research focuses on the technical principles and components of solar photovoltaic (PV) technology, detailing the semiconductor physics of silicon-based cells, including the roles of phosphorus (N-type) and boron (P-type) doping. Key operational factors influencing efficiency such as solar irradiance, temperature fluctuations, shading effects (hot spots), and optimal tilt angles are examined through both theoretical explanations and mathematical examples. Finally, the study highlights the practical integration of solar energy within modern architecture and infrastructure, proposing innovative applications such as floating solar stations, building-integrated photovoltaics (BIPV), and solar-powered urban canopies. The findings emphasize that developing the renewable sector not only mitigates environmental degradation but also ensures energy security, reduces long-term maintenance costs, and fosters socio-economic growth through technical job creation.