List of products by brand Tongwei Solar

Tongwei Solar is a trademark Tongwei Co., Ltd., a chinese business conglomerate founded in 1992 with activities ranging from agriculture to solar energy. Its headquarters is located in Chengdu, in the province of Sichuan, China. In just over two decades, Tongwei has managed to consolidate itself as a key actor in the renewable energy sector, especially through its solar subsidiary, Tongwei Solar, established in 2006.

The rapid rise of Tongwei in the photovoltaic market has been driven by a strong investment in technological innovation, high efficiency production and vertical integration ranging from polysilicon manufacturing to solar cell and module production. Currently, the company is recognized as one of the main producers of solar cells in the world, and has achieved a production capacity that exceeds the 80 GW per year, consolidated as a strategic provider in the global supply chain photovoltaic.

Does Tongwei belong to the Tier 1 group?

Yeah. Tongwei has been classified as a tier 1 brand according to BloombergNEF (BNEF), a classification that does not evaluate the technical quality of the products, but the financial solvency and bankability from the manufacturers. To obtain this designation, the brand modules must have been funded by at least six different banks without additional warranties. This classification reflects the commercial reliability and financial stability tongwei, highly valued attributes in large-scale photovoltaic projects.

Tongwei Solar product portfolio

Tongwei offers a range of high-performance solar modules, mainly based on monocrystalline technology and PERC and TOPCon cells. Its catalogue covers solutions for residential, commercial and industrial projects as well as for large-scale solar plants. Below are some of its most relevant products:

1. TWM Series (Tongwei Monocrystalline Module)

  • Technology: Monocrystalline PERC

  • Power: Between 400W and 550W

  • Efficiency Up to 21.5%

  • Advantages: High conversion efficiency, excellent performance in low irradiance conditions, reduction of the PID effect (Potential Induced Degradation) and good shade tolerance thanks to its mid-cell configurations and 10BB (busbar).

  • Application: Ideal for commercial and industrial projects where high power density is required in limited ceilings or surfaces.

2. TPC Series (Tongwei Performance Cell – TOPCon)

  • Technology: N-type TOPCon (Tunnel Oxide Passivated Contact)

  • Power: Up to 585W

  • Efficiency Between 22% and 22.5%

  • Advantages: Increased efficiency against conventional PERC technologies, lower temperature coefficient (-0.30%/°C), lower initial degradation (LID ≤1%) and a life span of more than 30 years.

  • Application: Thinking for large solar plants looking to maximize production by m2 and reduce the LCOE (Levelized Cost of Energy).

3. Bifacial Modules (Vidrio-Vidrio)

  • Technology: TOPCon bifacial or bifacial PERC

  • Power: Up to 700W in large-format modules (e.g. with 210 mm obles)

  • Advantages: Generation of energy on both sides of the module (up to 25% additional gain in optimal conditions), greater durability thanks to the glass-video structure, excellent resistance to adverse weather conditions.

  • Application: Utility-scale projects, especially in reflective soils or bifacial trackers.

Commitment to quality and the environment

Tongwei applies strict quality controls throughout its production chain. Your products have international certifications as IEC 61215, IEC 61730, ISO 9001, ISO 14001 and ISO 45001, which guarantees its reliability and compliance with global standards. In addition, the company has expressed its commitment to sustainability through the use of clean energy in its factories and circular economy policies.

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