Our partners | TONGWEI
Tongwei, a world leader in the manufacture of fully integrated photovoltaic systems
Tongwei Solar, based in southwest China, entered the photovoltaic (PV) market in 2006 and has grown into a fully integrated PV company , covering the entire industry value chain. It was the first PV company to be included in the Fortune Global 500 ranking. A world leader in polysilicon production with a capacity of over 900,000 tons, Tongwei dominated global solar cell shipments for eight years, with a production capacity of over 140 GW. In late 2022, Tongwei began manufacturing modules and ranked 5th in global shipments in 2023 and 2024, with a capacity of 85 GW. Tongwei supplies modules to customers in more than 70 countries for a variety of applications.
Brand news and updates
25.28%! Tongwei's TNC module breaks the efficiency record again!
On March 20, 2025, the Tongwei PV R&D Center announced new TÜV-verified results showing that Tongwei's TNC-G12R module achieved a front-end power output of 682.8 Wp with a standard size of 2382 x 1134 mm, which represents an increase of approximately 60 Wp compared to standard mass-produced modules of the same size. The conversion efficiency reaches 25.28%.
Tongwei's TNC-G12 module, with a standard size of 2384x1303 mm, achieved a power output of 778.5 W and a conversion efficiency of 25.06%, also breaking efficiency and power records in the TOPCon module category.
Tongwei Solar sets a new record with the THC-G12 HJT module, reaching 790.8 W
On March 20, 2025, Tongwei's PV R&D Center announced that its THC-G12 Heterojunction (HJT) module had reached a maximum output power of 790.8 Wp in the standard module size of 2384 x 1303 mm, as certified by the internationally recognized testing organization TÜV. The efficiency across the entire module surface reached 25.46%, setting a new record for the efficiency of crystalline silicon modules in third-party testing.
Tongwei launches a virtual tour of its largest factory Solar panels to the world.
Tongwei, a global leader in photovoltaics (Fortune Global 500), has launched an immersive virtual tour of its Yancheng, China, module factory—the world's largest single-scale facility—powered by the Sinovoltaics VFT platform. This interactive 3D experience, combining 5G and AI, allows PV professionals to remotely explore the factory's manufacturing processes, quality controls, and sustainability commitments. Designed for industry professionals, this initiative reduces the costs and risks associated with travel while enhancing Tongwei's transparency and accessibility. The tour is available here .
Why choose TONGWEI?
A Global 500 company recognized for its financial strength.
Tongwei is the first photovoltaic company to be included in the Fortune Global 500, a testament to its strong financial stability and long-term commitment to renewable energy. This solid foundation ensures reliable partnerships and continuous innovation.
A fully integrated photovoltaic supply chain, guaranteeing quality and traceability
Tongwei leads the photovoltaic industry value chain, from polysilicon to cells and modules. With a polysilicon capacity of 900,000 tons and a cell capacity of over 140 GW, Tongwei ranks among the top 5 global module suppliers (2023-2024). This vertical integration ensures complete process traceability, quality control, and stable supply for customers in more than 70 countries.
A robust research and development (R&D) capability, serving product excellence
Tongwei is investing heavily in all current and next-generation photovoltaic technologies. With its TNC 2.0 platform, which includes EPT, 0BB, and optimized polyethylene layers, Tongwei aims for cell efficiency exceeding 26.5%. These innovations ensure high-performance, reliable modules that meet the needs of diverse applications in global markets.
Key data
- Date of creation: 1982
- Headquarters: Chengdu (China)
- Production site: Yancheng, Nantong, Chengdu Jintang, Hefei (China)
- Number of employees: 60,000
- Present in: 70 countries