How can DAS Solar become an industry leader in the N-type era?

It is impossible to ignore the impact of N-type TOPCon technology, production capacity, manufacturing processes, and cost control on the future of the PV?industry. Since its inception, DAS Solar has consistently increased its investment in research and development, committing itself to N-type TOPCon technology.?The DAS Solar N-type products have consistently maintained a leading position in the industry as ranked Top 10?in Solarbe Global's Q1 2024 PV?module shipment rankings with an impressive 4.5GW+ shipment.

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In 1 year after DAS Solar was established, it built China's first high-efficiency TOPCon 1.0 cell production line, which has a production capacity of 1.2GW annually. This achievement laid the foundation for the industrialization of N-type technology in China, filling a significant market gap.?Over the past 4 years, DAS Solar has continuously innovated in N-type cell technology, progressing from TOPCon 1.0 to TOPCon 4.0plus, improving all parameters continuously.

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TOPCon 4.0plus enhances efficiency through 3 core technologies：

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1. Passivation Material Innovation: Utilizes new materials for the rear passivation layer, enhancing carrier selectivity and achieving superior passivation effects.

2. Cell Structure Innovation: Employs a novel structure that optimizes spectral utilization, improving the use of both long and short wavelengths of the solar spectrum by over 15%, and enhancing the cell's UV resistance.

3. Process Method Innovation: Uses a laser high-flux carrier injection process, reducing the contact resistance between the metal electrode and silicon through the coupling effects of light, heat, and electric fields.

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Using these new technologies, DAS Solar's large-area TOPCon cells achieved an open-circuit voltage exceeding 742mV and a mass production efficiency of 26.55%, setting a new record. As an innovative enterprise, DAS Solar places a high value on innovation and intellectual property protection. The company's R&D and frontline staff are largely responsible for developing DAS Solar's advanced technologies and patents, actively contributing to its innovation process. Currently, DAS Solar has filed 2 PCT patent applications and 844 Chinese patent applications, with 340 patents granted.

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"Ultimately, PV?technology innovation should reduce production costs by improving efficiency," said Dr. Song Dengyuan, CTO of DAS Solar and Chairman of the SEMI Standards PV and PV Materials China Joint TC Chapter.?In just 8 months, DAS Solar' R&D team has achieved breakthroughs in TOPCon cell technology, setting world records for open-circuit voltage and conversion efficiency of large-area TOPCon cells 3 times. This has effectively propelled the mass production efficiency of N-type cells into a new era surpassing 26%, and steadily advancing towards its theoretical limit of 28.7%. At the same time, a technology roadmap developed by DAS Solar includes 4 pathways, TBC, SCPC, SFOS and TSiX, which will result in solar cell efficiency of up to 40%.

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With its independently developed high-efficiency cell technology, DAS Solar integrates its full-scenario PV solution into its product applications as a provider of full scenario PV system solutions. In response to diverse market demands, DAS has designed three series of "photovoltaic+" applications for environmental, urban, and offshore PV applications.

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Equipped with TOPCon 4.0plus, DAS Solar N-type modules offers?advantages such as zero light-induced degradation (LID), higher bifaciality, lower temperature coefficient, and superior performance under weak light conditions, meeting the diverse requirements of various application scenarios.?By reducing the BOS and LCOE of the system, these attributes make it an ideal choice for offshore, desert, and urban PV power generation.

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A series of DAS Solar modules, including the N-type, monofacial, bifacial, rectangular, 0BB, and lightweight series, has undergone extreme cold climate outdoor testing at the "Extreme Cold Testing Park" in Mohe City since October 2023. DAS Solar modules have demonstrated excellent reliability and power generation performance despite extreme cold temperatures and blizzards, despite the harsh winter. Currently, DAS Solar's high-efficiency modules are widely used in various scenarios worldwide, demonstrating the leading position of its N-type technology in the global PV market.