隆基绿能发布二代BC技术新品 防积灰组件销量已超10GW
On March 5, LONGi Green Energy (601012) unveiled its new anti-dust module, the Hi-MO X10, which is based on the HPBC 2.0 technology. This module boasts a maximum power output of 670W and an impressive conversion efficiency of up to 24.8%.
In October 2023, LONGi introduced the BC anti-dust 1.0 module. After two years of practical application, this module achieved an average power generation increase of over 2% per watt. The second-generation BC modules utilize HPBC 2.0 technology with Tairui silicon wafers as their substrate, offering advantages such as resistance to shading, strong performance in low light, a low temperature coefficient, and excellent surface light absorption, yielding over 8% more power per unit area compared to the first generation.
This year in February, the National Development and Reform Commission and the National Energy Administration released the “Management Measures for the Development and Construction of Distributed Photovoltaic Power Generation” and the notification on “Deepening Market-Oriented Reform of New Energy Grid Pricing to Promote High-Quality Development of New Energy”. This has sparked a surge in the installation of distributed photovoltaic systems, highlighting the need to maximize solar panel deployment on limited rooftop spaces.
According to data provided by LONGi, for a rooftop area of 10,000 square meters, the Hi-MO X10 anti-dust module (660W) generates 189,000 more kilowatt-hours annually compared to the TOPCon module (630W), resulting in an additional revenue of 113,000 yuan. Over a 30-year lifecycle, this could increase total revenue by approximately 2.67 million yuan. With the same rooftop space, the second-generation BC modules can accommodate 6% more than the TOPCon modules, leading to greater energy production and revenue.
The Hi-MO X10 is designed to prevent issues like “hot spots” caused by shading or dust accumulation, which can hinder current flow and raise local temperatures, potentially leading to module aging or even fires. Its design features a unique anti-dust frame and a specialized bypass diode structure, providing three protective functions: fire prevention, shading resistance, and dust accumulation mitigation. The anti-dust frame allows rainwater to wash away dust, addressing a long-standing challenge in the distributed photovoltaic market. This not only reduces maintenance and cleaning costs but effectively prevents “hot spots”.
Empirical data shows that modules equipped with anti-dust features achieve an average power generation increase of 2.04%, with peaks reaching as high as 6%. In distributed settings, where shading from utility poles or ventilation ducts is common, the Hi-MO X10 can autonomously reroute obstructed current, avoiding high temperatures and ensuring consistent power output. Power loss in these modules is reduced by 70% compared to TOPCon products.
Moreover, under conditions of localized shading from bird droppings or leaves, the Hi-MO X10 significantly lowers the temperature of hot spots. Laboratory tests and real-world case studies indicate that under similar leaf obstruction, the local temperature of the Hi-MO X10 components remains just over 80 degrees Celsius, whereas TOPCon components can exceed 130 degrees Celsius.
LONGi reports that its BC module sales have surpassed 30GW globally, with anti-dust modules accounting for over 10GW and being widely used in nearly 10,000 power stations across various industries, including textiles, agriculture, aluminum, water management, and airports.
Niuyanyan, President of LONGi’s Distributed Business Division in China, emphasized that while the anti-dust module may appear to be simply an optimization of frame design, its core lies in the robust research and development capabilities and innovative spirit of the company. LONGi has overcome numerous technical challenges and holds over 120 patents in the development of these anti-dust modules.
It is worth noting that the TOPCon technology is sensitive to moisture, making it challenging to produce single-glass modules. Under the current technological conditions for anti-dust frames, it is difficult to prevent moisture infiltration, which can lead to risks of DH failure and rapid degradation of the components.
