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High‑Current Module Junction Box Certification: Suzhou Tongtai New Energy has obtained the DEKRA Seal certificate for a 30‑A rated, three‑piece photovoltaic junction box, supporting 166/210 mm large‑wafer modules.

With the launch of large‑wafer solar cells and modules—such as 166 mm and 210 mm wafers—the power output of photovoltaic modules has reached up to 500 W, bringing us one step closer to grid parity. However, increasing wafer size not only boosts efficiency and power; it also leads to a steady rise in internal current. Recently, Suzhou Tongtai New Energy Technology Co., Ltd. obtained DEKRA’s world‑first DEKRA Seal certification for a three‑part photovoltaic junction box rated at 30 A. This three‑part junction box incorporates the latest generation of modular design, delivering excellent thermal management even under high currents—far exceeding the conventional 18 A—and demonstrating outstanding heat dissipation. The product not only meets the IEC 62790:2014 standard for junction boxes but also significantly outperforms traditional designs in terms of performance and reliability, elevating operational safety and dependability for PV modules, particularly those featuring large 166/210 mm wafers, TOPCon, HIT, and bifacial cells. Mr. Bai Licheng, Director of Solar Services for DEKRA East Asia and South Asia, stated: “Suzhou Tongtai New Energy Technology Co., Ltd. boasts a dedicated team specializing in the development and design of modular junction boxes. Their newly introduced 30 A‑rated junction box is well‑suited to meet the demands of high‑current modules using large wafers, ensuring long‑term reliable operation. Moving forward, we look forward to expanding our collaboration with Tongtai to help domestic PV companies maintain their global leadership.” Mr. Tai Xiaojun, General Manager of Suzhou Tongtai New Energy Technology Co., Ltd., added: “Achieving grid parity swiftly remains a shared goal for the entire photovoltaic industry. While increasing wafer size has indeed led to substantial cost reductions, it has also introduced new technical challenges—for instance, conventional junction boxes with lower current ratings cannot adequately support the reliable operation of high‑current modules. To address these industry pain points, Tongtai has assembled an R&D team that comprehensively strengthens core competencies across power device design, manufacturing, and junction box application development, ensuring that modules equipped with large 166–210 mm wafers can continue to operate reliably over extended periods.” About Suzhou Tongtai New Energy Technology Co., Ltd. Founded in April 2013, Suzhou Tongtai New Energy Technology Co., Ltd. is the world’s first manufacturer of modular junction boxes. Since its inception, the company has been committed to the research, design, and production of Reliable‑Box integrated bypass modules for photovoltaic applications, with the mission of ensuring module safety and reliability. Through this dedication, Tongtai has successfully reshaped and set the direction for advancements in junction box technology. To date, the company holds more than 70 patents and utility model registrations for modular junction boxes, including five international patents. Since entering the market, its products have consistently earned high praise from customers both domestically and internationally. Tongtai has established strong partnerships with numerous globally renowned module manufacturers, contributing meaningfully to the growth of the photovoltaic sector.

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Celebrate New Year’s Day and warmly welcome the Spring Festival.

“United in Heart, Moving Forward Together—Creating the Future” — Suzhou Tongtai New Energy Technology Co., Ltd.’s 2020 Annual Meeting and 2019 Awards Ceremony was solemnly held on December 31, 2019, by the beautiful shores of Lake Tai. At the outset of the event, General Manager Mr. Tai Xiaojun delivered an inspiring address. In his speech, he reviewed the company’s journey from its inception to the present day and outlined a detailed roadmap for 2020 and beyond. His words conveyed both his deep expectations for the company’s future and his unwavering confidence, filling everyone with boundless hope. Following the address, the company honored its outstanding employees, exemplary frontline managers, and distinguished managerial staff for their achievements in 2019. General Manager Tai personally presented awards, commending their remarkable contributions throughout the year while setting higher standards for our continued efforts and expressing earnest hopes for what lies ahead. As Director of the Sales Department and representative of the Five-Year Loyalty Award, General Manager Liao also addressed the gathering, projecting an ambitious target of 400 million yuan in sales for the coming year. Amidst the excitement of all colleagues, the annual gala officially commenced. The evening’s performances were meticulously choreographed by the company’s own team members: heavenly vocals and exquisitely crafted dances transported us into a sea of joy. Particularly noteworthy was a heartfelt poem penned by the Production Department, whose simple yet profound words offered the most beautiful tribute to Tongtai. Led by their department head, the Quality Control team transformed discarded materials into vibrant, uniquely styled creative costumes, presenting a dazzling fashion show. The performance then seamlessly transitioned from modern flair to traditional Hanfu, blending contemporary aesthetics with classical elegance—a fresh, distinctive format that provided a feast for the eyes. Interactive games brought the celebration to a thrilling climax. Company leaders and employees alike enthusiastically participated, with General Manager Tai even joining in alongside his wife, making the festivities all the more lively. These activities vividly demonstrated our strong sense of teamwork. Of course, no annual meeting would be complete without a raffle. This year, the company prepared generous prizes, ensuring that winners left delighted and those who didn’t win shared in the joy. Throughout the evening, everyone sang, danced, and celebrated, their faces aglow with happiness. To conclude the event, department heads performed “Tomorrow Will Be Better,” bringing the gala to a fitting close. This symbolic gesture heralded an even brighter future for Suzhou Tongtai Technology Co., Ltd. “As the year draws to a close, laden with bountiful harvests, the joy of abundance blossoms on every happy face. And as New Year fireworks bloom like flowers across the sky, the city once again stirs with the promise of next year’s vibrant romance.”

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