BIPV
发布时间
2025-01-23
In the 1980s, photovoltaic ground systems began to enter ordinary individual users, in addition to being widely used in remote areas without electricity, nomadic households, navigation lighthouses, power supply for isolated island residents, and some special fields. Internet users and commercial buildings. Since the 1990s, with the increase in power generation costs caused by the depletion of conventional energy and the improvement of people's environmental awareness, some countries have begun to implement and promote the Building Integrated Photovoltaics (BIPV) system. China has a large population and a high population density. The BIPV system combines buildings with photovoltaic systems or photovoltaic modules, which can not only save the floor area of photovoltaic power generation systems, but also meet China's national conditions that can reduce costs. Therefore, China has broad development space.
In June 2021, the Comprehensive Department of the National Energy Administration issued the "Notice on Proposing a Pilot Plan for Distributed Photovoltaic Development on Roofs in Counties (Cities, Districts)" (hereinafter referred to as the "Notice"), stating that China's building roof resources are abundant and widely distributed, and there is enormous potential for the development and construction of distributed photovoltaic systems on roofs. Carrying out the construction of rooftop distributed photovoltaics throughout the county (city, district) is conducive to integrating resources for intensive development, reducing peak electricity load, and saving and optimizing distribution network investment. It is an important measure to achieve the two major national strategies of "carbon peak and carbon neutrality" and rural revitalization, which are conducive to guiding residents' green energy consumption. Among them, the proportion of the total roof area of party and government buildings in pilot counties (cities, districts) where solar power can be installed is over 50%.
The photovoltaic power generation application centered on photovoltaic integration occupies the majority of the current photovoltaic power generation market share. The integration of photovoltaic buildings has the following advantages: buildings can provide sufficient area for photovoltaic systems, eliminating the need for photovoltaic system support structures that do not require additional land occupation, photovoltaic arrays that save transmission costs can replace ordinary building materials, combined with installation and construction projects that save material costs, decentralized power generation that saves installation costs, avoids transportation and distribution losses (5% -10%), and makes the building appearance more attractive with reduced transmission, distribution investment, and maintenance costs. In addition, in areas frequently plagued by power outages, building photovoltaic systems will become a reliable power source. The combination of solar energy and architecture has made houses develop into new types of buildings with independent power sources and self circulation, which is an inevitable result of human progress, social and technological development. According to a survey report by the United Nations Energy Agency, BIPV will become one of the most important emerging industries of the 21st century.
