TBC Technology FeaturesAccording to Zheng, the TBC cell, with its front-side aesthetic free of gridlines, improves light absorption and reduces the consumption of metallization paste, thanks to its 9BB rear-side design, compared to its peers. Additionally, the TBC process flow offers a high product yield of up to 96% and has the potential for higher efficiency due to its compatibility with other technologies, such as perovskite/BC tandem cells. Zheng also highlighted several features at the TBC module level, such as the stack-welded interconnection technology for BC cells. This full backside stack-welded interconnection technology, achieved by uniquely inserting a finger electrode structure, eliminates gaps between cells and improves module efficiency by between 0.2% and 0.3% due to high-density packaging.Furthermore, the TBC module’s lower temperature coefficient of –0.29%/°C compared to its peers results in reduced power losses as the operating temperature increases. The grid- and busbarless front-side design, free of front-side surface recombination losses, enables enhanced low-light generation performance during cloudy conditions or in the early morning and late afternoon compared to standard PERC products. It also offers a lower maximum hotspot temperature between 80°C and 110°C, compared to TOPCon and PERC modules, which improves both power generation and long-term module durability, added Zheng.Leveraging the low breakdown characteristics of BC cells, SPIC’s TBC module has shown significant advantages in power generation under shading conditions, compared to standard TOPCon or PERC modules, according to internal test data. With technological advancements, TBC modules now offer bifaciality greater than 70%. To enhance the aesthetic features of the TBC module, the company has incorporated new surface texture technology that reduces blue light reflection and achieves a forged black appearance, explained Zheng.TBC Module PortfolioSPIC Solar offers a wide range of ANDROMEDA 3.0 series TBC modules, available in both dual-glass and monofacial configurations, based on M6-size TBC cells with a mass-scale efficiency of 26.08%. The ANDROMEDA 3.0 n-type bifacial module, sized at 2,080 x 1,034 x 30 mm and equipped with 144 M6-size TBC cells, boasts a power output of up to 520 W and an efficiency of up to 24.2%. The ANDROMEDA 3.0 Elegant Series full-black monofacial module, featuring 132 TBC half-cut cells, delivers up to 460 W of power output and an efficiency of up to 23.6%. For BIPV applications, the company promotes the ANDROMEDA 3.0 Dual-Glass BIPV series (Black). SPIC’s module portfolio also includes solar tiles and flexible TBC modules for specialized applications. Its dual-glass and monofacial black TBC modules come with a product warranty of up to 15 years, while the dual-glass version offers a power warranty of up to 30 years, and the monofacial version offers up to 15 years.
