It is a technology that integrates solar power (photovoltaic) products into buildings. Photovoltaic building-body (BIPV) is different from the form of photovoltaic system attached to building (BAPV: Building Attached PV). Photovoltaic building integration can be divided into two categories: one is the combination of photovoltaic array and building. The other type is the integration of photovoltaic arrays and buildings. Such as photovoltaic tile roof, photoelectric curtain wall and photoelectric lighting roof. In both ways, the combination of photovoltaic arrays and buildings is a common form, especially in combination with building roofing.
Photovoltaic building integration is a new concept for the application of solar power. Simply put, the solar photovoltaic grid is installed on the outer surface of the building's enclosure to provide electricity. According to the combination of photovoltaic array and building, photovoltaic building integration can be divided into two categories: one is the combination of photovoltaic array and building. The other type is the integration of photovoltaic arrays and buildings. Such as photovoltaic tile roof, photoelectric curtain wall and photoelectric lighting roof. In both ways, the combination of photovoltaic arrays and buildings is a common form, especially in combination with building roofing. Since the combination of photovoltaic array and building does not occupy additional floor space, it is the best installation method for photovoltaic power generation system widely used in cities, and thus has attracted much attention. The integration of photovoltaic arrays and buildings is an advanced form of BIPV, which has high requirements for photovoltaic modules. Photovoltaic components must not only meet the functional requirements of photovoltaic power generation, but also take into account the basic functional requirements of the building. During the "Twelfth Five-Year Plan" period, 2,000 demonstration units of conservation-oriented public institutions will be created. In addition to public institutions, commercial organizations should give priority to the development of photovoltaic building integration mode due to their relatively high electricity consumption, relatively high willingness to participate in energy conservation, and their financial advantages.
With the official entry into force of the Kyoto Protocol, how to achieve sustainable development of environmental protection has become the strongest voice in the world. As a developing country, China's energy consumption is growing at an alarming rate every year, and buildings are a major energy consumer (the building energy consumption in developed countries generally accounts for more than one-third of the country's total energy consumption), and its energy-saving benefits become especially important. BIPV has therefore become a hot spot in the 21st century construction and photovoltaic technology market.
According to the 2013-2017 China PV Building Integration (BIPV) Industry Market Outlook and Investment Strategic Planning Analysis Report, solar power generation is the frontier of science and technology in the 21st century, and governments around the world support solar power generation; From the domestic point of view, during the "Eleventh Five-Year Plan" period, the state focused on the pilot projects of urban building roof photovoltaic power generation in Beijing, Shanghai, Jiangsu, Shandong, and Guangdong. By 2010, about 1,000 rooftop photovoltaic power generation projects have been built nationwide with a total capacity of 50,000 kilowatts. It is estimated that by 2020, 20,000 rooftop photovoltaic power generation projects will be built nationwide with a total capacity of 1 million kilowatts.
As a combination of a huge construction market and a huge potential photovoltaic market, BIPV will have unlimited development prospects. It can be expected that the combination of photovoltaic and building is one of the most important areas of future PV applications, and its development prospects are very broad and have huge market potential.