Dedicated to its “green production concept”, Tongwei Solar presented its latest modules at the 16th SNEC PV POWER EXPO in Shanghai, China.
Tongwei’s current pilot-scale production line using its independently developed plasma-enhanced chemical vapor deposition (PECVD) TNC (Tongwei N-passived Contact Cell) technology has achieved an efficiency of 25.7%. Measured in mass production, the conversion efficiency of TNC cells has exceeded 25.5%. TNC cells have high bifaciality, very low attenuation, improved temperature coefficient and enviably low light response. Tongwei Solar’s current 182mm, 72 half-cell module has a power output of 588W, which is 25-30W higher than PERC and 10% higher bifaciality. The company’s new TNC-182 offers innovations to the 182-72 version and designs optimal cell and module sizes. The power of the new module versions is further increased by 25-30 W and can now exceed 600 W.
Tongwei Solar has been working on THC technology since 2018, and by March 2023, the mass production efficiency of Tongwei’s first GW-level production line in China had reached 26.18% (certified by ISFH). The newly unveiled 210-THC modules feature several technological breakthroughs, including silver-free technology, ultra-thin silicon wafer technology, bifacial microcrystal technology, effective target doping and light spraying. Replacing silver with copper plating narrows the cost difference between PERC modules even more. Tongwei Solar’s new 210-THC module series has a lower temperature coefficient and higher bifaciality, which can further increase power generation and achieve lower LCOE. Tongwei is expected to soon implement large-scale production of its THC modules.
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In line with the global “carbon neutrality” goal, Tongwei Solar continues to expand its production capacity and delivery targets, aiming to achieve 300,000 tons of ultra-pure crystalline silicon, 70 GW of cell deliveries (including self-use) and 35 GW of module deliveries.
Tongwei Solar’s module manufacturing capacity is expected to reach 80 GW by the end of 2023.