The efficiency range of PERC modules remained unchanged from 2024, with the lower limit fixed at 21.5% and the upper limit remaining static
A total of 11 PERC modules exited the TOP SOLAR MODULES list over the 2-year period, including multiple removals in H2 2025
By the end of December 2025, the PERC category comprised 13 listed modules, with a continued decline in representation
If there is anything that has been stagnant in our TOP SOLAR MODULES list, it is the efficiency range of PERC products. While the lower limit of 21.5% has remained unchanged – given it is the minimum required efficiency to feature in the TOP SOLAR MODULES list – the upper limit has not changed at any point within the scope of this report. Throughout 2024 and 2025, the efficiency range of PERC modules has remained static. Although a few companies announced PERC modules with efficiencies above 21.7%, no proof of commercialization was provided for these products, and they are, therefore, excluded from the TOP SOLAR MODULES listing.
During H2 2025, the efficiency range of PERC modules remained unchanged. Instead, the period was marked exclusively by further product exits. In July 2025, EGING PV’s PERC module was delisted from TOP SOLAR MODULES. No changes were recorded in August or September. In October, JA Solar’s PERC module was removed. This trend persisted into November, when DAS Solar’s PERC product was delisted. The most pronounced reduction occurred in December 2025, with 2 additional removals – one each from Canadian Solar and GCL SI (see Share Of PERC Technology In TOP SOLAR MODULES).
All PERC modules delisted during H2 2025 were positioned at the upper end of the efficiency band, clustered around the 21.7% level. This highlights a key structural limitation of the technology: even its highest-efficiency commercial products are now being phased out rather than further optimized. As a result, while PERC’s efficiency range remained static, its representation in the TOP SOLAR MODULES listing continued to decline through year-end.
The downward trend for PERC products was also evident in H1 2025, with 2 long-standing modules delisted in January – one from Risen and the other from Akcome. Risen’s PERC product entered the list in November 2022 with 21.7% efficiency, while Akcome’s product was listed with 21.68%. These removals reduced the PERC product count from 20 in December 2024 to 18.
In contrast, 2024 saw slightly more activity. Kalyon’s 21.61% efficiency PERC module debuted in March. However, this was also the first to be delisted, exiting the list in July as the company discontinued its PERC offerings. This was followed by further exits from Tongwei Solar in September, Astronergy and Talesun in October, and JinkoSolar in November, all of whom ceased commercial activity for PERC-based products during the year.
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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