On May 20, the Tongwei TNC 3.0 Global Media Meeting & New Product Tasting Event, themed "Quarter-Cut · Becoming Light," was successfully held at the Tongwei Solar Technology Yancheng Base. Industry media and partners from around the world gathered to visit Tongwei's module production base, reliability laboratory, and实证 power station, witnessing the core value of TNC 3.0 high-efficiency modules — "High Quality, More Power Generation" — in a panoramic view.

Tongwei TNC 3.0 Product Display

Customer Visit

Tongwei TNC 3.0 Global Media Meeting & New Product Tasting Event Scene

Customer Value as the Core Commitment

The PV industry is currently undergoing a profound transformation from "scale expansion" to "value creation." "The new generation of mainstream PV products must not only improve performance parameters but also deliver comprehensive, holistic product value to customers." This industry consensus is precisely the founding logic of Tongwei TNC 3.0.

Xiao Shengyi, Assistant to the President of Tongwei Co., Ltd. and General Manager of Tongwei Solar Technology, stated that TNC 3.0 integrates the latest cell processes and module structural designs, achieving a new high in conversion efficiency and further reducing the levelized cost of electricity (LCOE). It is another achievement by Tongwei in the field of high-efficiency PV. Xue Qingsong, Vice President of Marketing at Tongwei Co., Ltd., noted that true leadership goes beyond parameter stacking — it lies in systematic innovation centered on customer value. TNC 3.0 responds to the market's deep expectations for high-value PV products.

Xiao Shengyi, Assistant to the President of Tongwei Co., Ltd.

and General Manager of Tongwei Solar Technology, delivering a speech

Xue Qingsong, Vice President of Marketing at Tongwei Co., Ltd., delivering a speech

Qian Juncen, Director of the Quality Management Department of Tongwei Solar Technology,

introducing TNC 3.0 module quality control

Sun Le, Head of Product Marketing at the PV Business Division of Tongwei Co., Ltd.,

sharing TNC 3.0 product advantages

Mr. Zhu Xiaohui, PV Product Technical Manager of TÜV Rheinland China,

delivering a keynote speech

At the event, TÜV Rheinland, an internationally authoritative third-party testing and certification body, officially issued a full-dimension reliability certificate for Tongwei TNC 3.0 high-efficiency modules. Mr. Silvio Konrad, Member of the Board of TÜV Rheinland Asia-Pacific, personally presented the certificate, and Xue Qingsong, Vice President of Marketing at Tongwei Co., Ltd., accepted it on behalf of the company. The certification covers three major dimensions — mechanical, environmental, and electrical performance — and includes dozens of specialized tests based on IEC international standards, such as static mechanical load, thermal cycling, damp heat, PID, and LID. TNC 3.0 consistently and stably exceeded standard limit values at every stage, demonstrating particularly outstanding performance in key indicators such as hot spot resistance, low internal loss design, and long-term aging stability.

Tongwei TNC 3.0 modules awarded full-dimension reliability certificate

During the media and customer interaction session, addressing the industry's widespread concern about long-term module reliability, Chen Hui, Assistant to the Director of the Module Development Department at Tongwei PV Technology Center, stated that TNC 3.0 has undergone systematic upgrades in materials and processes. The power temperature coefficient has been optimized to -0.26%/°C, ensuring more stable power generation in high-temperature environments. A dual-EPE high water-resistance encapsulation scheme has been adopted, offering superior moisture and vapor corrosion resistance, making it suitable for special application scenarios such as coastal salt spray environments. Regarding the micro-cracks that commonly occur during module installation, Yuan Zhichao, Assistant to the Director of the Module Marketing Technical Support Department at Tongwei PV Business Division, noted that the individual cell area of the quarter-cut cells is only 1/2 that of conventional half-cut cells. Even if individual cells develop micro-cracks due to stepping, the crack propagation range can be effectively limited, preventing large-area failure. Meanwhile, the higher efficiency of TNC 3.0 modules increases the installed capacity per unit area, which objectively reduces the occurrence of stepping in densely laid rooftop scenarios. Regarding product reliability in the production process, Zhai Xujin, Deputy General Manager of Tongwei Solar (Yancheng) Co., Ltd., stated that Tongwei possesses full-chain integrated advantages from high-purity crystalline silicon and high-efficiency cells to high-efficiency modules, along with the smart manufacturing capabilities of the world's first lighthouse factory in the global PV cell industry. The Yancheng base is an industry-leading intelligent and automated module production base, and the fully self-controlled production system enables Tongwei modules to achieve industry-leading reliable quality.

Interactive Exchange

Multi-Dimensional Empirical Proof — Making Product Value Tangible and Perceptible

On the day of the event, the Yancheng base's reliability laboratory and实证 power station were officially opened to the public for the first time. The media group and partners conducted on-site visits, jointly witnessing the real-world testing of TNC 3.0. At the reliability laboratory, we conducted hail resistance tests and shading obstruction tests on TNC 3.0 modules together with customer representatives. At the实证 power station, under real power generation conditions, TNC 3.0 was subjected to full-dimension empirical verification through 7-day comprehensive power generation testing, rear-side power generation, low-light response, and hot spot experiments. In a visual manner, technical parameters were translated into quantifiable real-world power generation performance, strongly confirming TNC 3.0's advantages in comprehensive power generation, per-watt power gain, and product reliability.

Visiting the Reliability Laboratory

Visiting Tongwei Yancheng Empirical Power Station

Through multi-dimensional technological innovations such as the quarter-cut cell design, Tongwei TNC 3.0 transforms product value into real, long-term returns for power stations:

· Superior Temperature Performance — Thanks to the quarter-cut design, the module achieves a lower operating temperature and an optimized temperature coefficient of -0.26%/°C, delivering better power generation performance in high-temperature environments;

· High Bifaciality & Scenario Gains — TNC 3.0 modules can achieve a bifaciality factor of up to 90%. In high-reflectivity environments such as deserts, snow-covered areas, and water surfaces, rear-side power generation gains directly increase total energy yield and reduce LCOE;

· Excellent Low-Light Performance — Leveraging the low-light response characteristics of TOPCon technology, TNC 3.0 modules can "start earlier and end later," generating more power revenue.

Group Photo

From the product analysis of TNC 3.0 to the data validation at the empirical power station, the Tongwei TNC 3.0 Global Media Meeting & New Product Tasting Event showcased the value connotation of "High Quality, More Power Generation" to the global market in a "perceptible, quantifiable, and comparable" manner.

As the PV industry enters the "deep waters of value," TNC 3.0 proves with empirical data: true technological leadership is found in every kilowatt-hour generated at the power station, and even more so in the long-term return certainty for customers.