TOPCon was the most represented technology over the analysis period, with its share increasing from 33% in January 2024 to 44% by December 2025
TOPCon’s product count remained largely stable, starting at 18 products in January 2024, rising to 20 products, and remaining at that level for most of 2025
The increase in TOPCon’s share was primarily relative, driven by the contraction of the overall TOP SOLAR MODULES list
The TaiyangNews TOP SOLAR MODULES analysis report shows that TOPCon held the largest share of listed modules from January 2024 to December 2025. It continued to outperform all other technology streams in terms of its share among the overall products in the list. During H2 2025, TOPCon evolved as the most represented cell technology in the TOP SOLAR MODULES listing. While the product count remained broadly at 20, its share increased steadily from 40% in July to 44% in December, reflecting a reduction in the overall product count.
At the start of the second half, in July 2025, 20 products represented the TOPCon stream, accounting for a 40% share. Both these figures remained unchanged in August. A notable change occurred in September 2025, when DAH Solar entered the TOP SOLAR MODULES list with a TOPCon module, increasing the product count to 21 and lifting the share to 41%. This marked the only net product addition to the TOPCon category during H2 2025 (see Product Shares Of Different Cell Technologies).
In October 2025, the number of TOPCon products declined again to 20, with the removal of the TOPCon module from Qn-Solar. However, the share remained stable, supported by a reduction in the total number of listed modules. The upward trend in relative representation continued toward the end of the year. In November, TOPCon’s share increased to 43%, despite no change in product count. By December 2025, the share rose further to 44%, with 20 TOPCon products listed. These gains were largely due to PERC product delistings rather than additional TOPCon entries. In H1 2025, TOPCon maintained a consistent product count of 20 from January through June. The share remained at 40% for the first 5 months before dipping slightly to 39% in June due to an increase in the total number of products (see BC Technology Share And Representation).
In January 2024, TOP SOLAR MODULES consisted of 18 TOPCon-based products with a 33% share. Qcells re-entered the list in February, increasing the total number of products to 19 and the share to 34%. This was followed by another addition in March, with Türkiye’s Kalyon PV entering the listing for the first time, taking the product count to 20 and the share to 35%. While there were no further additions to this technology stream for the remainder of the year, it ended with an even higher share of 38% by year-end, driven by a decrease in the total number of listed products starting in July (see HJT Technology Share In TOP SOLAR MODULES).
The text is an edited excerpt from TaiyangNews’ latest TOP SOLAR MODULES Report 2025, which can be downloaded for free here.
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