With the rapid development of science and technology and the popularization of environmental protection concepts, the construction industry is experiencing an unprecedented green revolution. With its unique charm and potential, photovoltaic building integration technology is rapidly emerging as a new trend leading this revolution. It not only changes our traditional understanding of architecture, but also creates a greener and more sustainable future for us.     1. Photovoltaic building integration: concept and basic principles   Photovoltaic building integration, referred to as BIPV, is an innovative model that combines photovoltaic power generation technology with architectural design, construction and operation. It uses photovoltaic panels as part of the building materials and directly integrates them into the exterior walls, roofs or windows of the building to achieve efficient energy utilization and green buildings. The emergence of this technology not only improves the energy efficiency of buildings, but also gives buildings new aesthetic value.   2. The perfect integration of green energy and architectural aesthetics   One of the biggest features of photovoltaic building integration is that it can perfectly integrate green energy with architectural aesthetics. Traditional photovoltaic panels are often regarded as cold and monotonous industrial products, which are difficult to coordinate with diverse architectural styles. However, with the continuous advancement of photovoltaic technology, modern photovoltaic panels can already achieve diversified appearance designs. They can present different colors, textures and shapes, and can even imitate the appearance and texture of traditional building materials. This enables photovoltaic panels to better integrate into the overall style of the building, achieving the harmonious unity of green energy and architectural aesthetics.   3. The dual boost of cost reduction and policy promotion   The popularization of photovoltaic building integration also benefits from the continuous reduction of costs and the strong promotion of policies. With the improvement of the photovoltaic industry chain and the expansion of production scale, the manufacturing cost of photovoltaic panels has decreased year by year, making its application in the construction field more economical and feasible. At the same time, governments of various countries are also actively introducing relevant policies to encourage and support the development of photovoltaic building integration. These policies include tax incentives, subsidy support, loan discounts, etc., which provide strong policy guarantees for the promotion of photovoltaic building integration.   4. Technological innovation leads the rapid development of the industry   Technological innovation is one of the key factors in promoting the development of photovoltaic building integration. In recent years, many innovative achievements have emerged in the field of photovoltaic technology, providing strong technical support for photovoltaic building integration. For example, new photovoltaic materials have higher photoelectric conversion efficiency and longer service life; intelligent control systems can realize automatic adjustment and optimized operation of photovoltaic systems; wireless transmission and Internet of Things technologies make the monitoring and management of photovoltaic systems more convenient and efficient. The application of these new technologies not only enhances the performance and quality of photovoltaic building integration systems, but also reduces maintenance costs and usage complexity.   5. Application Cases and Broad Prospects   The application of photovoltaic building integration has spread all over the world, involving commercial buildings, residential buildings, public facilities and other fields. In the field of commercial buildings, photovoltaic building integration provides clean energy supply for shopping malls, office buildings, etc., reduces operating costs and enhances corporate image. In the residential field, solar building integration provides residents with a reliable source of electricity, reduces dependence on traditional power grids, and reduces electricity bills. In the field of public facilities, photovoltaic building integration provides sustainable energy solutions for parks, schools, etc., and contributes to the green development of cities.   With the continuous advancement of technology and the continuous expansion of the market, the application prospects of photovoltaic building integration will be broader. In the future, we can foresee that more buildings will adopt photovoltaic building integration technology to achieve energy self-sufficiency and environmental sustainable development. At the same time, with the further innovation and improvement of photovoltaic technology, the performance and quality of photovoltaic building integration will be further improved, creating a more comfortable, convenient and environmentally friendly living and working environment for people.   6. Industry Challenges and Future Development   Although solar building integration has shown great potential and broad prospects, we also need to seriously deal with the challenges it faces. Unified technical standards, professional installation and maintenance, and the popularity of market awareness are all factors that limit its further development. Therefore, we need to strengthen technical research and development, improve relevant standards, improve installation and maintenance levels, and strengthen publicity and education to improve the public's awareness and acceptance of photovoltaic building integration.   In the future, with the continuous breakthrough of technology and the gradual maturity of the market, photovoltaic building integration is expected to occupy a more important position in the field of construction. It is not only a key component of the green transformation of the construction industry, but also an important driving force for promoting human society to move towards sustainable development. We have reason to believe that in the near future, photovoltaic building integration will become the mainstream trend in the construction field, creating a greener and better future for us.   In short, photovoltaic building integration, as a new trend in the future construction field, is leading the green transformation of the construction industry with its unique advantages. Let us join hands to jointly promote the popularization and development of photovoltaic building integration and embrace a greener and better future.

The integration of solar energy with architectural design has paved the way for innovative solutions such as building-integrated photovoltaics (BIPV). This technology not only makes the use of renewable energy possible, but also enhances the aesthetics of modern architecture. In this detailed blog, we will explore the concept, benefits, applications, and the future of sustainable building design of building-integrated photovoltaics (BIPV).     How BIPV Works: Technology Overview The PV module is the basic component of building-integrated photovoltaics (BIPV) technology. The module consists of solar cells that are connected together to form an array customized for a specific site. PV systems capture the sun's energy and convert it into heat and electricity. The electricity generated by PV panels can power direct current (DC) appliances or can be stored in batteries.   The output of the PV system can be connected to an inverter or converted to alternating current (AC) power for other applications or fed into the utility grid. Balance of system (BOS) refers to the additional components of a building-integrated photovoltaic (BIPV) system, including inverters, switches, controllers, meters, power conditioning equipment, wiring, support structures, and energy storage components.   Types of BIPV Systems PV Roof Systems The use of PV panels in roof systems can be a direct replacement for batten-seam metal roofs, traditional three-tab asphalt shingles, and ceramic tiles. Note that this type of installation requires adequate ventilation to keep the cell temperatures low.   BIPV Curtain Walls Solar cells can supplement or replace traditional French windows or laminated glass. While these modules are mounted on vertical surfaces, which reduces the intensity of solar radiation, the overall size of the curtain wall helps to make up for the reduced power per unit area.   BIPV Skylights The use of PV panels in skylight systems can save on the cost of PV panels and can be an interesting design feature. Like PV windows, translucent structures can both create a visual connection to the exterior environment and provide diffuse natural light.   BIPV Awnings PV modules can be integrated into awnings or slightly angled sawtooth canopy designs. Translucent modules can filter sunlight from below while providing additional architectural benefits such as passive shading.

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The Government Office of Vietnam has recently issued Notice No. 356/TB-VPCP dated July 30, 2024, summarizing the conclusions of Deputy Prime Minister Tran Hong Ha on the formulation and promulgation of a decree stipulating incentive mechanisms and policies for self-production and self-development.     Formulate a decree to develop self-produced rooftop solar energy and ensure feasibility   The announcement confirms that the formulation of mechanisms and policies to encourage the development of self-produced rooftop solar energy is a very important policy to mobilize social resources to promote the development of renewable energy and meet the economic expectations of the people.   In order to speed up the advancement of the decree, ensure the quality, feasibility, applicability, and effectiveness when it is issued and implemented, absolutely leave no loopholes, do not exploit policy loopholes, and create an opportunity offer mechanism, Deputy Prime Minister Tran Hong Ha proposed that the Ministry of Industry and Trade improve the concept of "self-production and self-use" of rooftop solar energy; increase the proportion of electricity sales, and clarify the meaning of self-produced and self-used solar power generation. Among them, the power generation accounts for 90% of the total capacity, and the proportion sold to the national grid does not exceed 10%.   At the same time, according to the characteristics of each region, according to the actual power supply situation and power supply structure, formulate corresponding policies to encourage and mobilize solar power generation.   Based on this, we study and calculate reasonable and scientific bases, regulate the proportion of surplus electricity to the grid, allow the northern region to access the grid at a ratio of 20% of the total capacity; the central and southern regions can sell 10% of the total capacity to the grid. It is determined that the voltage capacity structure of solar rooftops in the northern region needs to be given priority over other regions (because the mobilization rate in the northern region is still low, and high loads can be mobilized at a higher rate).

According to Clean Energy Associates (CEA), a US clean energy consultancy, Europe imported about 33GW of solar PV modules from China in the first four months of 2024, accounting for 43% of China's total module exports.   Its PV Supply, Technology and Policy Report, Q2 2024, examines the market landscape of supply and policy in Europe and the United States, global silicon supply chain and technology trends.     Europe's import statistics coincide with CEA's observation that "European PV supply is shrinking as many long-term suppliers shut down production or file for bankruptcy because they cannot compete with imports."   Companies such as cell and module manufacturer Meyer Burger, Norwegian ingot producer NorSun and polysilicon producer REC have all suspended or abandoned European factories in the past 12 months due to unsustainable market conditions.   CEA also said that global module and cell production capacity will expand by more than 300GW each this year, in addition to about 600GW of new polysilicon capacity. Global capacity already far exceeds demand, and a January report by Bloomberg New Energy Finance (BNEF) said that no new solar capacity would be needed to meet global targets by the end of the decade.