Unlike efficiency, power has no direct relevance to the performance of the cell technology. But it definitely provides insights into technology and product positioning, especially on the application front.
Being the power leader also qualifies HJT for first mention. In H1 2025, Huasun set a new record in June with a 730 W HJT module, surpassing its own 720 W mark and becoming the first company to reach this level in the TOP SOLAR MODULES listing. At the beginning of 2024, Huasun and Tongwei Solar’s 715 W products shared the top position for power in the HJT stream. In August, Huasun raised the bar by introducing a 720 W module, securing the top position exclusively through the end of 2024. In 2023, Huasun’s 700 W module led both the HJT stream and the overall listing in January. Risen matched this in February, and both shared the lead until September, when Huasun launched a 715 W product. Tongwei Solar caught up in December, leading to a tie at the top again (see Top 3 Power Ratings: H1-2025 Analysis).
TOPCon technology represents the second-highest in power rating. In the first half of 2025, Trinasolar made a notable upgrade by increasing the power of its TOPCon module to 715 W in May, improving from the 700 W level that had been maintained since 2023. This change pushed the top-rated power for the TOPCon stream up by 15 W, marking its highest level to date. However, there was no change with respect to top power in this technology stream in 2024. Trinasolar’s 700 W TOPCon module was the leader throughout the year. The 2023 story was a bit different, with several ups and downs. EGING PV started on top at 685 W and held that position until June. In July, after reducing its product’s power to 580 W, the lead shifted to 625 W modules from Runergy and Suntech. DAS Solar and JA Solar briefly took over in August with 630 W modules. In September, Trinasolar set a new record for the category with its 700 W module, which remained unbeaten through 2024.
While PERC comes 3rd in power, there was no change to the top-rated power for the PERC category in H1 2025. However, due to the delisting of the PERC module from Risen, this level was again represented by Canadian Solar alone during H1-2025. A 675 W module from Canadian Solar has been leading the PERC stream in the power segment since the beginning of 2023. In the month of April, Risen also commercialized a PERC product with the same power rating, thus listing alongside Canadian Solar for the rest of 2023 and throughout 2024 (see High-Power Modules In TOP SOLAR MODULES Analysis).
IBC, albeit an efficiency leader, stood last in power comparison. In H1 2025, AIKO increased the power rating of its leading IBC module from 655 W to 660 W in June, marking a modest but symbolic increase in the IBC stream. The company continues to lead the IBC power ranking without competition. The top power of this technology changed only once during 2024, but by the same company. AIKO has also been the leader of the IBC power league with a 620 W product. Its record efficiency module, included in May 2024, also brought an improvement in power, rated at 655 W. It was placed directly at the top among IBC modules and retained its lead till the end of the year. However, back in early 2023, LONGi led with a 590 W module. In March, AIKO’s ABC series took the lead at 610 W and improved it to 620 W by June, retaining it through the rest of the year.
This text is an edited excerpt from the TaiyangNews TOP SOLAR MODULES H1-2025 report, which can be downloaded for free here.
