Key Developments in China’s Solar PV Sector: Innovations and Initiatives from JinkoSolar, Tongwei, GCL Group, and Trinasolar

“`markdown
Tongwei at TaiyangNews Virtual Conference on June 24 & 26

Aran, the Overseas Technical Support representative from Tongwei, will be presenting on the topic of TOPCon 2.0: Taking TOPCon to the Next Level at the TaiyangNews Virtual Conference focusing on PV System Technology Trends – SNEC & Intersolar Product Review. This conference is scheduled for June 24 and June 26, from 09:30 to 13:00, and will feature key technology highlights and trends emerging from both SNEC and Intersolar Europe 2025. Attendees can expect insights from market and innovation leaders regarding the latest breakthroughs that are shaping the future of photovoltaics. Register for free here.

JinkoSolar Releases White Paper on TOPCon Technology

Leading integrated solar manufacturer JinkoSolar, in partnership with CGC and TÜV NORD, has released what it describes as the industry’s first comprehensive white paper on TOPCon solar technology and its Tiger Neo 3.0 solution. The document, titled TOPCon Technology and Tiger Neo 3.0 Business Solution White Paper, provides an in-depth analysis of TOPCon’s process chain, technical architecture, and performance in real-world scenarios, utilizing data from over 10 global power stations located in extreme environments, including deserts, coastal regions, and high-altitude areas.

Key findings from the report indicate that n-type TOPCon modules consistently outperformed back-contact (BC) modules by 2-3% in energy output, with a notable 7.1% advantage recorded during a field test in Kagoshima, Japan. This enhanced performance results from TOPCon’s high bifaciality and environmental compatibility. Additional testing in Haikou, China, demonstrated superior weak-light response and thermal performance.

The white paper also reports that TOPCon’s current mass production efficiency has reached 26.5%, with the possibility of exceeding 28% within three years. The theoretical ceiling is projected at 32.5% using advanced technologies such as perovskite tandems. Economic analyses from a 100 MW project in Saudi Arabia suggest a 4.73% reduction in the levelized cost of electricity (LCOE) and RMB 0.048/W in savings under high-temperature, high-irradiance conditions. In May, JinkoSolar announced that its cumulative shipments of Tiger Neo solar modules have surpassed 200 GW.

GCL Group Launches Global Green Carbon Chain Alliance Initiative

At the SNEC PV+ 18th International Solar Photovoltaic & Energy Storage Conference in Shanghai, GCL Group, along with over 20 organizations including the Global Green Energy Council, APVIA, NEIAAP, TÜV Rheinland, and Ant Digital Technology, officially launched the Global Green Carbon Chain Alliance Initiative. This initiative aims to promote a comprehensive zero-carbon ecosystem within the photovoltaic (PV) industry.

The alliance focuses on three primary areas. Firstly, it seeks to develop a standardized system for carbon footprint management across the PV industry chain. This includes the establishment of a unified carbon accounting platform, alignment of domestic standards with international certifications, and the creation of low-carbon benchmarks throughout the silicon-to-module lifecycle.

Secondly, the initiative promotes the development of a carbon-efficient PV industry ecosystem through the establishment of life-cycle evaluation standards and the encouragement of innovation in raw materials, smart manufacturing, and recycling practices. The alliance also plans to cultivate demonstration enterprises within the green supply chain and explore cross-sector cooperation through a broader “PV+” model.

Lastly, the initiative supports policy engagement and public education to standardize carbon footprint management and enhance industry-wide awareness.

Trinasolar Sets New 841 W Power Record for Perovskite-Silicon Tandem Module

Vertically integrated solar PV manufacturer Trinasolar has announced a new world record for the power output of perovskite/crystalline silicon tandem modules, achieving 841 W. This announcement follows the company’s recent records of 829 W power and 30.6% module efficiency. Trinasolar attributes this achievement to its rapid advancements in tandem solar technologies.

The company began research and development on tandem technology in 2014 and claims to have made several significant breakthroughs since then. In March, they introduced the first industrial-standard module exceeding 800 W (808 W, covering an area of 3.1 m²). In April, they reached 31.1% efficiency on a 210 mm industrial-sized tandem cell. Most recently, they became the first company to surpass 30% efficiency at the module level, achieving 30.6% on a module size of 1,185 cm².
“`