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How does bifacial power generation technology improve the overall power generation efficiency of components under different surface environments?

Publish Time: 2025-07-15
Today, as the energy structure is accelerating its transformation, photovoltaic technology is driving the development of global green energy at an unprecedented speed. Double-sided double-glass n-type monocrystalline solar photovoltaic modules are one of the representative high-end products in this process. It not only integrates a number of cutting-edge technologies, such as multi-busbar design, bifacial power generation, low temperature coefficient, etc., but also provides efficient and stable solutions for distributed power stations, large-scale ground projects and complex terrain applications with excellent reliability and economy.
Double-sided double-glass n-type monocrystalline solar photovoltaic modules use N-type monocrystalline silicon cells. Compared with traditional P-type cells, N-type materials have lower light decay rate and higher minority carrier life, which significantly improves the initial efficiency and long-term stability of the components. Combined with multi-busbar technology, the current collection path is greatly shortened, the resistance loss is reduced, and the current conduction efficiency is improved, so that the components can still maintain good output performance under weak light conditions. At the same time, the multi-main grid structure can also enhance the resistance of the cell to mechanical stress, reduce the risk of hidden cracks, and further ensure the reliability of the components during transportation, installation and long-term operation.

"Double-sided power generation" is one of the most innovative functions of double-sided double-glass n-type monocrystalline solar photovoltaic modules. While the front side absorbs direct sunlight for photoelectric conversion, the back side can also effectively use the reflected light and scattered light from the surface for additional power generation. This feature enables the components to show obvious power generation gain advantages in different application scenarios - on high reflectivity ground (such as snow, sand, concrete pavement), the power generation can be increased by more than 25%, and even on ordinary land, there is a gain of about 5%-15%. This full utilization of space resources not only increases the energy output per unit area, but also enhances the overall economy of the system.

In the context of increasingly frequent extreme climate conditions, the weather resistance and structural strength of the components are particularly important. Double-sided double-glass n-type monocrystalline solar photovoltaic modules have extremely high mechanical bearing capacity by optimizing the glass packaging structure and frame design. They are certified to withstand wind pressure of up to 2400Pa and snow pressure of 5400Pa, and are fully adaptable to a variety of harsh environments including plateaus, coastal areas, and cold zones. In addition, the IP68-level junction box protection design enables it to have excellent dust and water resistance, and can operate stably even in heavy rain, snow or humid environments, greatly extending the service life of the components.

From the perspective of system cost, double-sided double-glass n-type monocrystalline solar photovoltaic modules also have significant BOS (Balance of System) cost advantages. Due to its higher unit power output and power generation efficiency, it can reduce the number of components used, the amount of brackets used, and the land occupation under the same installed capacity, thereby reducing the overall construction cost. More importantly, it effectively lowers the levelized cost of electricity (LCOE) by increasing the annual equivalent full-time hours, making photovoltaic power generation more competitive in the market, and also providing strong technical support for achieving the goal of "grid parity".

In-depth analysis shows that double-sided double-glass n-type monocrystalline solar photovoltaic modules are not only a technological breakthrough at the product level, but also a concentrated reflection of the photovoltaic industry's development towards high quality, high efficiency and low cost. It redefines the boundaries of solar energy conversion with technology, and also invisibly promotes the popularization and implementation of clean energy around the world.
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