As a sustainable option to meet the rising global demand for energy, integrating solar photovoltaic (PV) technology is essential to achieving sustainable energy goals. This study comprehensively reviews the technological, economic, regulatory, and environmental aspects of solar grid integration, emphasizing practical examples and detailed findings. It identifies critical challenges such as grid stability problems, the intermittency of solar power, and high upfront infrastructure costs and significant advantages, such as lowering GHG emission levels, increased energy access and reduced operating costs. The research approach includes a thorough literature review of more than 204 peer-reviewed articles covering recent advances in solar technology, grid integration issues, economic impacts, and policy frameworks. To facilitate solar PV deployment and maximize its environmental and economic benefits, addressing technical and regulatory barriers, investing in grid modernization and implementing supportive policies are critical. These findings highlight significant opportunities for solar PV to address climate change and energy access, in line with global sustainable development goals. The study concludes that, despite the challenges involved, integrating solar PV into the main grid promises to deliver a safer, more secure and more efficient energy system.
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