In recent years, the state and local governments have actively promoted the development of distributed photovoltaic in the whole county, and the installed capacity has been increasing.
According to the data released by the national energy administration, in 2021, the country’s newly installed photovoltaic capacity was 54.88 million KW, the highest in previous years.
Therefore, the internal rate of return and return on investment time are unparalleled.
Including apple, Novartis, Samsung, Coca Cola, Heineken, Pfizer, GW University and so on.
Other insiders pointed out that if the current domestic County self built roofs of 100million square meters, 50% of which can be developed, and the installed capacity of household PV is 5 kw-10 kW, the potential market size of domestic County distributed photovoltaic power generation is about 250 gw-500 GW.
The residential energy consumption in the county is mostly concentrated in the evening, while the rooftop photovoltaic power generation time is mostly concentrated in the daytime.
The created thermal barrier can save up to 50% of the current energy demand of the building.
At that time, these new buildings may be mainly BIPV.” Wei Baojun predicted so.
(1) Pfizer genyo laboratory this project includes a second photovoltaic skin fixed to the existing wall.
At the same time, the promotion of distributed photovoltaic construction in the whole county has further clarified the development trend of “building + photovoltaic”, which provides a good foundation for the large-scale promotion of building photovoltaic integration (BIPV).
Among them, the installed capacity of distributed photovoltaic power generation is 29.28 million KW, accounting for about 55% of the total installed capacity of new photovoltaic power generation, exceeding the installed capacity of centralized power stations for the first time.
Let’s learn some cases of building photovoltaic integration: contemporary architecture has been looking for innovative and energy-saving materials for facade and roof projects.
“The promotion of energy conservation and carbon reduction in the construction industry mainly includes two directions: one is to reduce the demand for energy from the consumer side, and the other is to let buildings generate energy themselves, thereby reducing the use of other energy sources.
(2) Harmful radiation filter photovoltaic glass is an ideal material to improve the comfort of users in buildings; It not only allows natural light to enter, but also filters harmful solar radiation: ultraviolet and infrared.
The power generated by the photovoltaic glass system can be injected into the power grid or consumed at the moment of generation.
“At present, the county approved the installed capacity of distributed photovoltaic mainly based on the local renewable energy consumption capacity.
In March, the Ministry of housing and urban rural development issued two documents, namely, the “14th five year plan” for the development of housing and urban rural construction science and technology, and the “14th five year plan” for the development of building energy efficiency and green buildings.
(2) The ventilated facade solution of Coca Cola FEMSA headquarters creates a second layer of skin, improves the thermal insulation performance of the building, and completely renovates the beauty of the building.
” Wei Baojun said so.
Pfizer, the owner, enjoys natural light, improved insulation and clean energy, thanks to this pixel like facade design.
If the rooftop photovoltaic capacity of the county continues to increase, it will exceed the carrying capacity of the power grid.
The energy it generates is distributed throughout the building to meet 15% of its energy demand.
“In the future, with the vigorous promotion of distributed photovoltaic in the whole county, the distributed photovoltaic market will be further opened and the industrial potential will be released.” According to Wei Baojun, deputy chief engineer of the ecological Municipal Engineering Institute of China Academy of urban planning and design, the imperfect power market mechanism is the main obstacle to promoting the development of distributed photovoltaic in the whole county.
Its optimized solar coefficient helps achieve pleasant temperatures in any building.
In addition to local governments, the intensive national policies also release positive signals.” As said, the policy support is strong.
The application of building photovoltaic is an important way for the latter.
The above information comes from BIPV online.
The general code for building energy efficiency and renewable energy utilization (hereinafter referred to as the code), which came into effect on April 1, further clarified that “new buildings should be installed with solar energy systems”, and its design should be completed synchronously with the building design.
“With the further improvement of China’s urbanization rate, 140million people will move from rural areas to cities and towns in the future, and cities and towns need to add 1.8 billion square meters to 1.9 billion square meters of new buildings.
Photovoltaic glass cases around the world, many well-known companies around the world have enjoyed the benefits of photovoltaic ventilation exterior walls.
This amorphous silicon device shows how to automatically improve efficiency when renovating buildings with photovoltaic glass..
First, it is required to carry out the efficient utilization technology of clean energy buildings such as the integration of efficient and intelligent photovoltaic buildings (hereinafter referred to as “BIPV”), and then it is proposed that by 2025, the installed capacity of solar photovoltaic in new buildings across the country will be more than 50million kW.
Features: (1) innovative design and aesthetics photovoltaic glass curtain wall improves the aesthetic value and energy self-sufficiency of the building, making it an ideal solution for new buildings and renovation projects.
Recently, the general office of the CPC Central Committee and the general office of the State Council issued the opinions on promoting urbanization with the county as an important carrier, proposing to guide the development of distributed energy in the county and promote roof distributed photovoltaic power generation.
“More and more real estate developers begin to pay attention to building photovoltaic.” According to Zhang Xinyu, director of the solar energy application research center of the Chinese Academy of Building Sciences, the combination of architecture and photovoltaic is not accidental.
How to solve the problem of limited return on investment of roof photovoltaic projects? Industry experts said that in the future, the form of promoting distributed photovoltaic in the whole county will gradually change from roof distributed photovoltaic to BIPV.
Only by further opening the power market, breaking the barrier of partition power sales, and allowing the distributed power supply to access the market fairly and conduct transactions, can we really release points Development potential of distributed photovoltaic.
“Compared with cities, the land and roof area of the county are larger, the cost of energy consumption is lower, and the development of distributed energy has great potential and obvious advantages.” The relevant person in charge of the Energy Research Institute of the national development and Reform Commission said.
It adopts the concept of double-layer / ventilated facade and is made of translucent, amorphous silicon photovoltaic glass.
