With the growing global emphasis on sustainable development and environmental protection, particularly in the context of achieving carbon peak and carbon neutrality, the construction industry is experiencing a profound transformation. As a critical component of green buildings, Building-Integrated Photovoltaics (BIPV) is steering the construction sector toward a greener, low-carbon future through its distinctive appeal and immense potential. This paper uses the Nuoyuan project as a case study to investigate the photovoltaic integration technology and construction methodology for multi-curved tile-slope roof structures. By integrating the distinctive form of traditional curved tiles with modern green energy concepts, the system achieves self-sufficiency in energy production, promotes energy conservation and emission reduction, enhances environmental protection, and ensures aesthetic appeal. This approach not only offers valuable insights for the green advancement of the construction industry but also advances the sustainable evolution of BIPV technology, providing significant practical implications for its future development.