In the wave of green energy revolution, BIPV technology is gradually becoming an important force to promote the sustainable development of the building industry with its unique advantages. As a dark horse in BIPV applications, cadmium telluride power generation glass shines in the construction field with its efficient, beautiful and environmentally friendly characteristics.
1. Excellent performance of weak light power generation
Cadmium telluride power generation glass has become a star product in the field of BIPV due to its excellent photoelectric conversion efficiency. This power generation glass uses a thin film of cadmium telluride as a photoelectric conversion layer, which can efficiently convert sunlight into electricity. Compared with traditional silicon-based solar cells, cadmium telluride power generation glass can maintain high power generation efficiency in low-light environments, providing a more stable energy supply for buildings.
The wide application of cadmium telluride power generation glass in buildings can not only meet the electricity demand of the building itself, but also integrate the excess electrical energy into the power grid to realize the complementary utilization of energy. This efficient way of using energy helps to reduce the energy consumption and carbon emissions of buildings, and promotes the development of green buildings.
2. Good temperature characteristics
Cadmium telluride thin-film photovoltaic cells exhibit excellent adaptability to high-temperature environments due to their significant advantages of low temperature coefficient. Specifically, even in the summer, when temperatures are rising, the rate of decline in power generation efficiency is relatively slow, which means that cadmium telluride thin-film photovoltaic cells can maintain efficient power generation performance at high temperatures. This feature makes cadmium telluride thin-film photovoltaic cells an ideal energy solution in high temperature environments in summer, providing strong technical support for green buildings and photovoltaic integration applications.
3. Long life and stability
Cadmium telluride thin-film photovoltaic cells stand out in outdoor environments with their excellent service life and stability, ensuring long-term stable operation. According to authoritative testing data from the National Renewable Energy Laboratory (NREL) in the United States, the conversion efficiency of cadmium telluride modules is still as high as 88% when first installed (1995-2021), and the conversion efficiency is only 12% attenuated. In contrast, the efficiency attenuation of today's common crystalline silicon modules is about 20%. This significant advantage fully proves the excellent performance of cadmium telluride thin-film photovoltaic cells in terms of durability and reliability, and provides long-lasting and stable energy support for green buildings and photovoltaic integration applications.
4. Strong adaptability with buildings
With its excellent customized design capabilities, cadmium telluride power generation glass fully meets the creativity of architects and the individual needs of owners. In terms of color, texture and size, the power generation glass can be finely customized, ensuring a perfect fit with the exterior of the building. This flexibility makes cadmium telluride power generation glass not only have the function of generating electricity, but also directly become a part of the architectural design, giving the building a unique aesthetic charm and achieving both functional and aesthetic improvement.
5. Good light transmittance
The cadmium telluride power generation module cleverly integrates cadmium telluride material with conductive glass, which not only meets the actual needs of the building for lighting, but also presents a uniform light transmission effect of various colors. This perfect combination allows the cadmium telluride power generation components to be harmonized to a new level of consistency, resulting in a solution that is both functional and aesthetically pleasing.
6. Higher security
In the process of operation, once ordinary modules encounter long-term local shading, due to the high current and the rise of the accumulated heat temperature, it often causes the hot spot effect, which will not only weaken the power generation capacity of the module, shorten the system life, and in extreme cases, may even cause the serious safety hazard of "fire". In contrast, cadmium telluride modules have a smaller current and a low heat accumulation temperature, so their hot spot effect is not obvious, thus ensuring greater safety and stability.
7. Low inclination dependence
The cadmium telluride component stands out for its excellent diffuse light absorption, which makes it less dependent in terms of mounting angle. Especially under extreme angular conditions, the cadmium telluride module exhibits a power generation capacity that far exceeds that of other modules, thus ensuring efficient energy conversion in a wide range of installation environments. This feature makes cadmium telluride modules more flexible and adaptable in integrated photovoltaic applications.
8. Environmental protection and sustainability advantages
Cadmium telluride power generation glass is manufactured using environmentally friendly materials and technologies that meet the requirements of sustainable development. Compared to traditional silicon-based solar cells, the manufacturing process of cadmium telluride power generation glass produces less waste and has a lower environmental impact. In addition, cadmium telluride power generation glass has a long service life and is able to maintain stable performance over a long period of use. This not only reduces the frequency of replacements and repairs, but also reduces the consumption of resources and the pressure on the environment.
Below, we will bring you a case study of cadmium telluride power generation glass in the field of BIPV~
1. The National Speed Skating Hall project of the 2022 Beijing Winter Olympics
Project location: Beijing
产品结构：5Li镀膜+1.52PVB+3.2CdTe+1.52PVB+5C
Product size: 400x600mm
Transmittance: opaque
Project Overview:
Located in the dazzling Olympic Park in Beijing's Chaoyang District, the National Speed Skating Stadium is eye-catching for its grandeur and innovative design concept. With a total construction area of 80,000 square meters, the museum's most striking feature is the 22 dreamlike "ice ribbons" at the top. These elegant, sleek lines are actually made up of more than 12,000 pieces of elaborate power generation glass spliced together, which together form a unique curved glass curtain wall.
Using the latest technology, these power generation glasses not only give the building a unique aesthetic charm, like the ethereal traces left by the melting of ice and snow, but also realize the dual functions of power generation and production capacity in addition to aesthetics. This innovative design not only demonstrates the perfect combination of technology and art, but also sets a new model for the use of green energy and sustainable development.
2. State Grid Ningbo's first cadmium telluride thin film (BIPV) photovoltaic village project in China
Project Location: Ningbo
产品结构：3.2CdTe+0.5EVA+3.2C
Product size: 1200x600mm
This project is committed to promoting the popularization and application of clean energy in rural areas, bringing revolutionary energy transformation to more than 200 households in the village. This unique product we launched combines multiple advantages such as power generation, waterproof, beautiful, and prefabricated integrated installation, and shows excellent comprehensive performance.
The product not only completely subverts the application pattern of traditional glazed tiles, terracotta tiles, metal tiles and other roofs, but also gives new functions and values to the building. By realizing the concept of Building Photovoltaic Integration (BIPV), we make every building a producer of clean energy, bringing stable power generation income to households, thereby effectively increasing the income level of the whole people.