Different Policy Drivers Shaping Development Pathways and Carbon Emission Effects of Anhui’s Building-Integrated Photovoltaics

In the context of global energy transition and the “dual carbon” goal, BIPV technology has become an important path to promote green buildings and low-carbon development. Taking Anhui Province as the research object, this paper systematically discusses the economic advantages and social and environmental benefits of BIPV technology in the field of building energy efficiency through policy combing, industrial chain analysis, typical case studies and scenario simulation methods. The study found that the number and installed capacity of BIPV projects in Anhui Province have grown rapidly, and the analysis of typical cases shows that through high-density layout and intelligent operation and maintenance technology, the power generation efficiency has been improved (PR value ≥ 85%), the annual carbon dioxide emission reduction has exceeded 3,500 tons, and the energy cost has been significantly reduced. Scenario simulation results demonstrate that policy reinforcement and technological innovation enhance the efficiency and effectiveness of carbon emission reduction, significantly advancing the timeline for carbon peaking and lowering peak carbon emission levels‌, and the emission reduction effect of the technological innovation scenario is the most significant. Anhui Province needs to strengthen policy and technology coordination, promote the full coverage of photovoltaic in the renovation of existing buildings and new buildings, deepen the integrated application of “photovoltaic energy storage and intelligent microgrid”, and improve the carbon trading mechanism. This paper provides theoretical support and path reference for the promotion of regional green buildings and the practice of “dual carbon” goals.