Speaking on day 4 of the 4-day taiyangNews High Efficiency Solar Technologies 2024 conference, SPIC Solar's Marketing Manager Seki Zheng shared that the company started with a 200 MW IBC solar cell and module production line in 2019 in collaboration with ISC Konstanz of Germany. Today, it operates 200 MW solar module and 1.1 GW solar cell production lines annually. Having started with p-poly IBC, SPIC Solar currently works with TBC or TOPCon contacts+IBC cell, bringing the best of both worlds as their combination allows the cell to maintain steady improvement in efficiency. While the p-poly IBC mass production efficiency stands at 25% in 2024, Zheng said the TBC cell efficiency in mass production has reached 26.5%. These TBC cells carry no busbars on the front side, which improves the light absorption by about 2.3%. Zheng said these are compatible with other technologies as well, including perovskite/BC tandem cells, and hence offer a higher potential for efficiency improvement. With no busbars on the front, the gap is more pronounced in a BC cell when the module is encapsulated. To deal with this, Zheng said SPIC Solar adopted the BC cell stack-welded interconnection technology that eliminates the gap between cells and improved module efficiency. With these features, SPIC Solar’s Andromeda 3.0 n-type TBC solar cell modules are suitable for several applications including residential PV, C&I, and large ground-mounted installations, along with flexible, colorful BIPV options, as well as solar tiles and vehicle-mounted PV systems. Zheng also presented the company’s pure black design module for buildings and rooftops with an anti-reflection coating film and high transmission glass. SPIC Solar says its new textured surface technology for these modules reduces blue light reflection and forges the purest black appearance. SPIC Solar will continue to focus on TBC technology for the next few years. The future will see it use TBC for perovskite tandem structure to realize 2-terminal output and meet diverse market demands. For more presentation videos and conference summaries for all 4 days of the TaiyangNews High Efficiency Solar Technologies 2024 Conference, click here for days 1 and 2, and here for days 3 and 4.
