TOP SOLAR MODULES Listing – September 2025

After no changes observed last month, this September edition of the TaiyangNews TOP SOLAR MODULES features several updates, both in terms of improved top efficiencies as well as the number of products and their respective manufacturers. Indeed, a new company, DAH Solar, has entered our listing – the first in 3 months. As a result, the latest edition features 51 products from 34 manufacturers, an addition of 1 in both metrics over the previous month.

The current edition records some of the most notable developments in the top efficiency levels. In total, this edition features 4 changes and the related ranking shifts, and all 4 changes take place in consecutive ranks – from 6^th to 9^th.

Starting from the high efficiency level, 2 companies – JA Solar and Astronergy – now represent the second-highest level in TOPCon, only marginally lower than the best. While JA Solar has improved the efficiency of its top commercial TOPCon modules from 23.2% to 23.3%, Astronergy’s jump is relatively larger, from 23.1% to 23.3%. Both products have the same power rating of 630 W and now share the 6^th position in the overall TOP SOLAR MODULES ranking list.

There is also a change in the very next ranking, with DAS Solar now ranked at 8^th, jumping from 19^th in the previous edition. The company has provided the proof of commercialization for its top TOPCon module, featuring an efficiency of 23.1% and 625 W of power, replacing its predecessor with 22.5% efficiency.

The most notable change in the September edition, as mentioned above, is the debut of DAH Solar, well known for its balcony solar kits. The company enters the listing directly into the Top 10 at 9^th place with its Full-Screen TOPCon module, rated at 23.02% efficiency and 595 W of power.

These changes reshuffle positions from the mid-table upward, but the top 5 remain unaltered. AIKO continues to lead the listing in 1^st place with its Comet 2U series ABC module at 24.4% efficiency and 660 W output. LONGi is 2^nd with its Hi-MO 9 HPBC module at 24.2% efficiency and up to 655 W of power, while Maxeon’s Maxeon 7 series IBC panel secures 3^rd place at 24.1% efficiency with 445 W. Huasun ranks 4^th with its Himalaya HJT module, reaching 23.5% efficiency at 730 W.

As part of this TOP SOLAR MODULES feature, we would also like to acknowledge last year’s efficiency leaders, highlighted through the updated TaiyangNews Badge of Excellence released in January 2025. As part of the TOP SOLAR MODULES Analysis Report 2024, summarizing the findings from an analysis of 24 editions published throughout 2023 and 2024, we also announced the names of the companies that are eligible for the Badge of Excellence started in 2023, which was extended to 2024. The rules of the game remain the same – manufacturers who have featured in the Top 10 for at least 6 months within a calendar year are eligible to apply for this badge. The winners of the TaiyangNews Badge of Excellence 2024 are: AIKO, Astronergy, DMEGC Solar, Huasun, JA Solar, JinkoSolar, LONGi, Maxeon, SPIC, and Tongwei Solar.

Background

Efficiency and output power are the 2 key characteristics of a solar module. While there are several means to improve module power, such as employing larger cell sizes or integrating more cells into a module, it’s the efficiency that truly speaks to the ability of the solar device to convert sunlight into power per area. That’s why this list includes only the highest-efficiency solar modules.

TaiyangNews has been diligently tracking the efficiency progress of solar modules through its annual reports on Advanced Module Technologies, a series that began in 2017. We also provide in-depth coverage of cell and module technology updates in our annual High Efficiency Solar Technologies Conference, the most recent of which took place in December 2024 (access the presentations here).

However, the solar sector is characterized by rapid change, with significant advancements occurring throughout the year. We capture these developments through the various events we organize on different topics. To synthesize this information and provide our readers with frequent updates on global module efficiency progress, TaiyangNews launched this monthly column on commercial TOP SOLAR MODULES at the beginning of 2022.

Furthermore, as mentioned above, TaiyangNews publishes reports analyzing this monthly list, the latest of which is released in June 2025 (see TOP SOLAR MODULES Analysis Report H1 2025).

Methodology

Before going into the details, here is some background on the methodology and selection criteria: module efficiencies have been improving considerably in recent years. In order to make the list rewarding for technically advanced products, we set 21.5% as the minimum efficiency criterion to feature in the list. We have listed only commercially available top solar modules from each cell technology stream of a module maker. For example, if a company is offering 2 different product streams based on PERC that have more than 21.5% efficiency, then only the product with the higher efficiency is considered for this list. But if a module maker is offering, for example, products based on PERC and TOPCon with efficiencies of 21.5% or above, then both products are listed. Efficiency is the only criterion for ranking in the list (whenever available in the specs, we have used 2 digits after the decimal point for efficiencies; otherwise, one). However, as we see products with the same efficiency more often, power determines the order in this case. And when both the efficiency and power are the same, we list the manufacturers in alphabetical order.

The list does not distinguish between different module formats. All typical module sizes used in rooftop and ground-mounted solar system applications are included and treated equally, as companies increasingly use larger modules also for rooftop applications.

We only list modules that are based on the manufacturer’s cells produced in-house, which means modules using externally sourced cells are not featured in the TOP SOLAR MODULES list. Having the complete data sheet listed on its manufacturer’s website is the first step for a module to be considered a commercially available product. As such, the efficiency and power data listed here are taken from the datasheet available on the respective company’s website. This also means that any new product announcements without final technical data published are not included in the list, as their module specs often differ considerably from the products that are finally available for purchase, and some products presented at trade fairs do not even see commercial light at all. However, just the existence of an online datasheet generally does not suffice, especially for top efficiencies in the respective technology stream. If module specs listed on the websites seem to have ‘conspicuously’ high efficiencies or new record-efficiency products are announced, we ask for additional proof of commercialization before we include a product in the list.

Results & Changes

The September 2025 edition of TaiyangNews’ TOP SOLAR MODULES features 51 high-efficiency products from 34 manufacturers, an addition of 1 both in terms of the number of products and companies compared to previous month.

One change in the higher efficiency levels of TOPCon products is that JA Solar is now represented by a TOPCon module featuring 23.3% efficiency and 630 W power, replacing its previously listed module with 23.2% efficiency and 600 W output. Astronergy has also improved the efficiency of its TOPCon module to 23.3%, a gain of 0.2 percentage points, along with a 5 W improvement in power to 630 W. With identical specifications, the 2 companies now share the 6^th rank.

Another major update comes from DAS Solar, which significantly improved the efficiency of its commercially available TOPCon module from 22.5% to 23.1%.

The 4^th and the final change in this edition is perhaps also the most significant – DAH solar makes its debut in the TOP SOLAR MODULES listing. The company has furnished the commercialization details of its module with 23.02% efficiency and 595 W of power. As mentioned above, all changes are seen from rankings 6^th onwards.

Thus, AIKO has retained its top seat ever since its entry into the list in March 2023, with its ABC series module boasting an efficiency of 23.6%. AIKO further cemented its dominance in June 2023 by breaking its own record and achieving a landmark 24% efficiency for a commercial module with another ABC series module. Again, after about a year, in May 2024, AIKO continued its legacy with its latest Comet 2U series, featuring 24.2% efficiency. In June 2025, AIKO has once again raised the bar by commercializing its latest product – AIKO-G660-MCH72M – which maintains the same form factor as its predecessor, featuring identical dimensions, a monofacial design, and a grid-free front that gives it a uniform and aesthetically pleasing appearance. While the structure remains unchanged, both power and efficiency have improved – the power output has increased from 655 W to 660 W, and the efficiency has increased from 24.2% to 24.4%. These gains are most likely the result of cell-level advancements.

The previously listed Comet 2U series module, rated at 655 W, was already a step up from AIKO’s previous ABC modules. Built with 144 half-cells of the M10 format, it introduced a larger module footprint, with the length extended from 2,278 mm to 2,382 mm, while the width remained at 1,134 mm. This increase in size contributed to a 35 W power gain over its 620 W predecessor. It is a monofacial module featuring a grid-free front design for improved aesthetics and uniform appearance.

The company has supported its claims with third-party lab test data, shipment records, and a list of commercial-scale projects already deploying this module series.

LONGi had held the 3^rd place since May 2023, when its Hi-MO 6 module improved from 22.8% to 23.2% efficiency. In March 2025, the company moved up to share the 2^nd position with Maxeon after commercializing its Hi-MO 9 module featuring 24.1% efficiency. In June 2025, LONGi improved it again by commercializing a new high-efficiency module reaching 24.2%. As a result, LONGi is now in sole possession of the 2^nd place, while Maxeon moved down to 3^rd. This product remains unchanged in the current September edition.

The Hi-MO 9 module, based on LONGi’s proprietary HPBC (Hybrid Passivated Back Contact) cell technology, utilizes the company’s TaiRay wafer and BC technology. The product – named LR8-66HYD – which replaces the previously listed LR7-72HYD, has the same external dimensions of 2,382 × 1,134 × 30 mm and a weight of 33.5 kg. However, LR8-66HYD is built with 132 half-cut cells, compared to the 144-cell layout of its predecessor. It achieves a maximum efficiency of 24.2% and a power output of up to 655 W, which is slightly higher than the earlier model’s 24.1% and 650 W. Despite the reduced cell count, the listed module delivers improved performance, likely due to a change in the wafer configuration apart from design and material enhancements. Additionally, it features an improved spec for bifaciality, up from 70±5% to 75±5%.

In addition to development on the commercial front, LONGi has also been working at the lab level, with its 27.3% efficiency still the highest for crystalline silicon solar cells. The company is also in the process of commercializing a very high-efficiency model, rated at 24.4% efficiency and 660 W of power, under the same Hi-MO 9 series.

Maxeon Solar moved down from 2^nd to 3^rd position in June 2025 following LONGi’s update, where it currently remains. Previously, Maxeon was the sole holder of the 2^nd position from May 2024 until February 2025. It also briefly shared this rank with LONGi from March 2025 to May 2025.

In May 2024, Maxeon introduced its latest high-efficiency Maxeon 7 module, which replaced its Maxeon 6 series. Despite maintaining the same power output of 445 W, the Maxeon 7 module has seen an impressive increase in efficiency from 23% to 24.1%. Similar to its predecessor, this IBC module features a sleek design with a white backsheet and a black frame structure. An important point to note here is that, unlike the previous product, which was built with 166 mm wafers, this Maxeon 7 series module is built with 112 cells based on a 125 mm wafer size. Maxeon offers a 40-year performance warranty on this module.

Thus, the Top 3 positions are now occupied by 3 different companies – AIKO, LONGi, and Maxeon – and interestingly, or perhaps unsurprisingly, all 3 are based on back-contact (BC) technology.

Huasun’s HJT module, introduced in September 2023, moved up to the 4^th position in May 2024, thanks to improved efficiency and power ratings. Until August, Huasun’s top product was listed with 22.53% efficiency and 700 W of power. The Himalaya series module from Huasun is based on the G12 wafer size in a 132-half-cell configuration. It became the first product on the list to surpass the 700 W threshold, later improving to 23.18% efficiency and 720 W power output in August 2024.

Commercializing an upgraded version of this module with 23.5% efficiency and 730 W of power, Huasun raised the bar in the June 2025 edition, maintaining its claim to the highest power rating among all modules listed in the TOP SOLAR MODULES ranking. This bifacial module features 2 mm double glass and boasts a bifaciality of 90 ± 5%, making it particularly well-suited for utility-scale applications. It measures 2,384 × 1,303 × 33 mm, weighs 37.9 kg, and is backed by a 15-year product and 30-year power warranty. Despite the performance upgrade, the module remains ranked 4^th, due to even more aggressive advancements among the top 3. This product from Huasun also leads the HJT pack in efficiency.

When it comes to TOPCon, the technology continues to make notable strides at the macro level, inching closer to HJT’s performance levels. JA Solar led the charge in June 2025, improving its top commercial module to 23.2% efficiency and 600 W power output. In addition to being the top efficiency among TOPCon products, 23.2% was also close to the efficiency of the top HJT product from Huasun till May 2025.

In July 2025, JinkoSolar took the lead in the TOPCon segment by commercializing a significantly improved module with 23.32% efficiency and a power output of 630 W. Until then, the company was represented by a 22.65% efficiency product. With this 0.67-percentage-point efficiency increase over its previously listed product, JinkoSolar moved to the top position among all TOPCon modules in July, entering the overall Top 5 as a result – pushing JA Solar to 6^th place.

Taking a quick glance at JinkoSolar’s product ranking over the past year, the company dropped from 9^th to 11^th in the July 2024 edition and slipped further to 12^th in October. It moved down to 13^th in May 2025 and then to 14^th in the June 2025 update. It moved up to 5^th with the efficiency improvement in June 2025.

JinkoSolar’s currently featured product – JKM625-630N-66HL4M-BDV – built with 132 half-cells is rated for up to 630 W of power and a maximum efficiency of 23.32%. Built on n-type monocrystalline cells with TOPCon architecture, the bifacial module incorporates JinkoSolar’s HOT 3.0 technology, designed to enhance light trapping, current collection, and overall performance stability. The dual-glass module, with 2 mm glass on both sides, has a bifaciality of 80±5% and is backed by a 30-year linear power warranty with 0.4% annual degradation after the first year. With this upgrade, JinkoSolar’s ranking jumped sharply from 14^th place in the June edition to 5^th position in July.

Astronergy improved its module efficiency from 23.1% to 23.3% in September 2025. Over the past 2 years, Astronergy has progressively improved its module efficiency. The previous ASTRO N5 variant, introduced in September 2023, had its efficiency upgraded from 22.5% to 22.6%, and later improved to 22.8% by March 2024. By November 2024, the company commercialized a high-power 640 W version with 22.9% efficiency, achieved by increasing the cell count from 144 to 156, which also resulted in larger module dimensions (2,465 × 1,134 × 30 mm).

In March 2025, the ASTRO N7 series entered the listing with an efficiency of 23%, replacing ASTRO N5 and improving the company’s ranking from 7^th to 5^th. The bifacial TOPCon module is composed of 132 half-cut cells based on 182 mm rectangular wafers. Compared to the previous model, the N7 module is slightly shorter in length at 2,382 mm, while its width and thickness remain the same at 1,134 mm and 30 mm, respectively. It has a bifaciality of 80 ± 5%. In the July 2025 edition, Astronergy further improved the module’s efficiency to 23.1% and its power to 625 W. Despite these improvements, the module’s ranking dropped from 6^th to 7^th   in July 2025, overtaken by JinkoSolar’s module mentioned above. In September, with efficiency now reaching 23.3%, Astronergy reclaims the 6^th place.

JA Solar also commercialized a high-efficiency TOPCon module – JAM66D45 630/LB – with an efficiency of 23.3%. This follows the JAM72D40 series, which entered the list in July 2024 at 22.8% efficiency, was raised to 23.0% in November 2024, and further improved to 23.2% in June 2025. Before that, JA Solar had been represented by the JAM72D42 630/LB, which had remained unchanged since August 2023 after replacing the earlier JAM66D45 630/LB.

The currently featured JAM66D45 630/LB measures 2,465 × 1,134 × 30 mm and weighs about 32 kg. It is a bifacial double-glass module with a bifaciality of 80 ± 10%, consisting of 66 full cells (132 half-cells) based on JA Solar’s rectangular M10 wafer platform. The module is interconnected with 16 busbars and is rated for a power output of 630 W at 23.3% efficiency. Compared to the previously featured JAM72D40 600/MB, which adopted the smaller 94 mm half-cell format in a shorter 2,278 mm, 72-full-cell (144 half-cell) module, the current product employs the larger 99.5 mm half-cell format, regaining a higher power rating while maintaining the same record efficiency.

Both companies now feature modules with 23.3% efficiency and 630 W of power, placing them at a joint 6^th rank. According to the listing methodology – efficiency first, then power, and finally in alphabetical order – Astronergy is listed ahead of JA Solar.

Trinasolar’s Vertex N series replaced the previous Vertex S+ in the September 2023 edition. Back then, while both product groups had the same efficiency, the former had a high power of 700 W compared to 450 W for the latter. Thus, the company’s order among the products with 22.5% efficiency went from the penultimate position up to 2^nd from the top in May 2024. The currently listed TSM-NEG21C.20 module is built with 132 half-cells based on 210 mm wafers. This bifacial module uses a 2 mm glass on both sides and offers a bifaciality of 80 ± 5%. Keeping these core specifications unchanged, the module improved its efficiency and power to 23% and 715 W in May 2025. This moved Trina up to 5^th from 16^th position at the time, though it dropped to 6^th in June following JA Solar’s update. It slipped further to 8^th in the July 2025 edition due to JinkoSolar’s jump to 5^th and Astronergy’s move to 7^th. In the September 2025 edition, the module’s rank slips once again, this time to 10^th. Nonetheless, the Vertex N module remains one of the highest-power products among TOPCon modules and also among those in the 23% efficiency band.

In December 2023, Tongwei Solar also started offering a 715 W HJT module, which entered the list ranked 4^th. It then moved to 5^th in May 2024 and to 6^th in June 2025. Till November 2023, Tongwei was only represented in the TOPCon segment and PERC (shingled) modules. With the inclusion of this HJT product, Tongwei was among the few companies to have featured simultaneously in all 3 different technology streams in our listing. However, its PERC module was delisted in September 2024, narrowing its representation to 2 streams. Tongwei’s HJT module is built with 132 half-cells of the 210 mm format. It is designed with the company’s THC cells – an n-type HJT cell technology. The highest power rating for this bifacial module is 715 W, with an efficiency of 23%, and it shares the 10^th position with Trinasolar. Tongwei has also provided production details and a testing report for this panel. The company presented the details of its latest products during the TaiyangNews PV System Technology Trends – SNEC & Intersolar Product Review Conference, which can be accessed here.

DMEGC Solar’s Infinity series TOPCon module, which was updated in April 2024 with 22.6% efficiency, was replaced by the Infinity RT series in July 2024. This module is built on the 210 mm rectangular wafer format and a 132-half-cell configuration. Compared to its 182 mm, 144-half-cell configured predecessor, this module has a 30 W higher rated power (610 W) and boasts an efficiency of 22.8%. Having moved up to 6^th from 10^th in July 2024, this module dropped to 7^th in October and then to 9^th in November 2024. An improvement in its efficiency to 23% in March 2025 pushed it up to 5^th, where it was grouped with several other TOPCon modules. Along with the above 2 companies, DMEGC Solar also dropped one step down to 6^th in June 2025, and further down to 8^th in July 2025, and to 10^th in September 2025, alongside Trina and Tongwei. The module’s dimensions are 2,382 × 1,134 × 30 mm, and it weighs 32.3 kg. The 2 mm double-glass module features a bifaciality factor of 80 ± 5%.

Jetion Solar, established in 2004 and operating under the China National Building Materials Group Corporation (CNBM), is a vertically integrated PV manufacturer with production capabilities spanning solar cells and modules. The company operates 5 manufacturing facilities across China and Thailand, with a total cell production capacity of 4.4 GW and a module capacity of 2.5 GW.

Jetion Solar joined the listing in June 2025 at the 10^th position with its HJT module, featuring a rated maximum efficiency of 22.9% and a power output of 710 W. Its JT SLk(B) series module features bifacial, dual-glass HJT technology and incorporates 132 half-cut monocrystalline cells based on the 210 mm wafer format. It measures 2,384 × 1,303 × 33 mm and weighs 36.4 kg. The module offers a bifaciality factor of approximately 90 ± 5% and utilizes 2.0 mm high-transmission, AR-coated tempered glass on both the front and rear sides. It is backed by a 15-year product warranty and a 30-year linear performance guarantee. Its Top 10 debut in June, however, was short-lived, being pushed to 11^th in the July edition due to efficiency improvements by other manufacturers. Now, in the September 2025 edition, it moves down again, now by 2 places to 13^th.

Grand Sunergy, a China-based manufacturer specializing in HJT cell manufacturing, entered the renewable energy sector in 2022. Its HJT module first appeared on the list in October 2024 with an efficiency of 22.86%, initially ranked 6^th. Subsequent efficiency updates from JA Solar and Astronergy in November 2024 led to a drop in its position to 8^th, followed by another shift to 9^th in March 2025. With Trinasolar improving its module’s efficiency in May, this module moved down to 10^th. Jetion Solar’s entry in June pushed it further to 11^th, and another place to 12^th in July 2025 by following efficiency gains from JinkoSolar and Astronergy. . With the abovementioned efficiency improvements and new entries, it is placed 14^th. The company’s GSM-MH3/132-BHDG710 module, which delivers a power output of 710 W, utilizes G12 large-size wafers and measures 2,384 × 1,303 × 33 mm, weighing 38.5 ± 0.5 kg. It features a bifaciality of 85% and is supported by a 30-year linear power warranty.

The next efficiency band on the list is 22.8%. Represented by 5 products in July 2024, the number dropped to 3 in November 2024 after Astronergy and JA Solar advanced to higher-efficiency groups. In July 2025, DMEGC’s move to the 23% class further reduced the count to 2. There has also been a steady decline in the band’s rank – from 9^th in November 2024, to 10^th in March 2025, 11^th in May, 12^th in June, 13^th in July, and now to 15^th in September 2025.

Tongwei Solar updated the efficiency of its TOPCon panel in February 2024. The module, which entered the list in April 2023, improved its efficiency from 22.5% to 22.8%, along with an increase in power from 580 W to 590 W. These improvements enabled its move from 10^th place to 6^th. However, Grand Sunergy’s entry in October 2024 shifted it down to 7^th, with further declines to 10^th in November and 11^th following Trinasolar’s May update. In June 2025, it was pushed to 12^th and further down to 13^th in July 2025, and now to 15^th in September 2025. The product is designed with a TNC cell type and an anodized aluminum alloy frame, and features a 30-year linear power output warranty. This product is built with 144 half-cells of the G12 wafer format.

Ranked 6^th from December 2023 until September 2024, SPIC moved down to 7^th in October and to 9^th in November, alongside its fellow rankers. With subsequent advancements by LONGi, Astronergy, and DMEGC Solar, the rankings of Tongwei and SPIC both slipped to 10^th in March, then to 11^th in May, 12^th in June, and to 13^th in the July 2025 edition and to 15^th in September, thus sharing the same rank.

While SPIC had been promoting a product with 22.3% efficiency till August 2023, it made a remarkable change in September 2023 by improving it by 0.5% absolute. Its Andromeda 3.0 product series has a top efficiency of 22.8%. The module features an elegant full-black design combined with SPIC’s TBC cell technology, which is an IBC concept adopted on a TOPCon base cell architecture. The module, with a bifaciality of 70% and built with 120 half-cells, has a power rating of 410 W. SPIC offers a 30-year power warranty for this product.

SolarSpace, a leading cell manufacturer that has ventured into module production, is represented in our listing with both PERC and TOPCon modules. The Lumina II TOPCon module, which entered the rankings in July 2023, was upgraded in December 2023 to a high-efficiency variant, increasing its efficiency from 22.02% to 22.45%. In November 2024, the company further enhanced the top efficiency of its commercial TOPCon offering to 22.65%, resulting in a significant jump in its ranking from 20^th to 12^th. However, subsequent updates from other companies pushed it down to 13^th in May 2025, 14^th in June, 15^th in July 2025, and to 17^th in the September 2025 edition. This 580 W module is composed of 144 half-cells based on the 182 mm wafer format. Additionally, SolarSpace's Lumina I, a PERC module with an efficiency of 21.57%, is one of 7 products tied for the 42^nd rank on the list. In December 2024, the company’s SS9-66HS mono-PERC module was replaced with the SS9-66HD bifacial PERC module.

In July 2024, REC Group, the Singapore-based manufacturer, made a significant update to its product lineup by commercializing the new bifacial Alpha Pure-RX module. This module replaced its predecessor, the Alpha Pure-R series, in our listing. This HJT module boasts an efficiency of up to 22.6% and a power output of 470 W. Designed with foil-wire combination interconnection technology, the Alpha Pure-RX is significantly improved compared to its predecessor, which had an efficiency of up to 22.3% and a module power of 430 W. As a result of this advancement, REC’s ranking jumped from 27^th to 12^th and then a couple of places down to 14^th in November. It slid to 15^th in May, to 16^th in June, and now 2 places down to 18^th as of September 2025.

The Alpha Pure-RX module is built with 88 half-cut bifacial HJT cells, compared to 80 cells in the Alpha Pure-R, contributing to its higher power. The physical dimensions of the Pure-RX module are slightly larger, measuring 1,728 × 1,205 × 30 mm and weighing 22.7 kg, compared to the Pure-R’s 1,730 × 1,118 × 30 mm and 21.5 kg. It also features a bifaciality of 80 ± 10%. Constructed with a highly resistant black polymer backsheet and an anodized aluminum frame, the module is manufactured in Singapore and is accompanied by a comprehensive 25-year product and power warranty.

GCL System Integration (GCL SI), a subsidiary of the vertically integrated GCL Group – the globally recognized silicon supplier to the solar industry – provides solar modules, battery storage products, and complete PV solutions. In the July 2023 edition, 2 modules from its GCL GEMINI series were listed – one based on TOPCon and the other on PERC technology. In April 2024, the GEMINI TOPCon module was replaced with a GCL LOTUS series module, although the core specifications remained unchanged. In October, this product dropped from 28^th to 29^th, sharing its rank with Qcells. GCL regained the 28^th position in January 2025, as the number of companies at this position fell from 3 to 2 following REC’s move up in July. In June 2025, the listing was updated with a new commercial product – GCL-NT12/66GDF. This bifacial, half-cell module features n-type TOPCon technology, built on a 210 mm wafer format with 132 cells. It delivers a rated power of 700 W and achieves a module efficiency of 22.53%. With this upgrade, the company’s ranking improved significantly, jumping from 28^th to 17^th. In the September 2025 edition, this module moves to 19^th rank. The design incorporates a multi-busbar (MBB) architecture, and the product is confirmed to be commercially available. The PERC product from GCL SI is listed at 38^th.

Jolywood, one of the early adopters of TOPCon technology, currently shares the 19^th rank with GCL. The last change for this product was in August 2023, when its former Niwa Light module was replaced with a bifacial product called Niwa Pro, which has the same specifications – 440 W power and 22.53% efficiency.

The next group of products, all rated at 22.5% efficiency, saw the number of companies sharing this spot reduce from 7 to 6 in July 2024, with the collective ranking slipping from 15^th to 16^th in November 2024. In May 2025, Trinasolar’s advancement to the higher 23% efficiency band further reduced the count to 5, leading to another drop in the group ranking to 17^th. In June, the group’s position slipped further to 19^th. In September 2025, DAS Solar’s improvement has reduced the number of companies to 4, with the group now ranked 21^st .

Risen gets the first mention among the 21^st rankers, a group that is structured according to power first and, if equal, according to alphabetical order. Risen Energy’s Hyper-ion HJT module, which was included in June 2023, has an efficiency of 22.5%, corresponding to a high rated power of 700 W. This bifacial product consists of 132 half-cells, cut from the original 210 mm format.

Canadian Solar’s TopHiKu6 TOPCon model is another module that offers 22.5% efficiency, added to our listing in June 2023. The module, labeled CS6W-580T, has an efficiency that is 0.2 percentage points higher than the bifacial product it replaced. It contains 144 half-cells based on the 182 mm wafer format and has a rated power of 580 W.

EGING PV improved its TOPCon module efficiency slightly in May 2024. Also from its Star Pro series, the company’s best TOPCon product has an efficiency of 22.5%, increased from 22.45%. This bifacial module, comprising 144 half-cells of the 182 mm wafer format, maintains its power rating at 580 W.

Runergy’s TOPCon module, initially listed with an efficiency of 22.4% until November 2023, was upgraded to 22.5% in December, resulting in a significant jump from 21^st to 10^th place. The ranking gradually declined thereafter, dropping to 12^th in April 2024, 14^th in July, and to 17^th in November. It then moved down to 19^th in June 2025 and to 21^st in September.

Runergy, a major Chinese cell manufacturer that expanded into module production, had both its TOPCon and PERC products featured in the listing for the first time in July 2023. The listed TOPCon module, HY-DH144N8, is a bifacial product built with 144 half-cells using the 182 mm wafer format and offers a maximum efficiency of 22.5%.

As a result of module efficiency upgrades, the 22.45% efficiency level has seen a drop in numbers to 2 since November 2024, down from 3 in October and 4 in April of the same year. In the July 2024 edition, the collective ranking of these companies dropped from 19^th to 20^th, and then to 22^nd in November 2024, with SolarSpace’s TOPCon module moving up that month. In June 2025, its rank dropped to 24^th and further to 25^th in September 2025.

Shanghai-headquartered solar cell and module manufacturer Qn-Solar entered our listing in July 2023. Launched in 2014, initially as a project developer and EPC, the company now also operates its own power plants and has been strongly expanding into the manufacturing field. According to the company’s website, it had 69 GW of cell and 39 GW of module production capacity in 2023. Its TOPCon module, with an efficiency of up to 22.45%, qualifies it for the shared 15^th position with DMEGC in July 2023. Qn-Solar’s listed bifacial TOPCon product has a rated power of 580 W and consists of 144 half-cells built on the 182 mm wafer format. The company is also promoting a PERC module with an efficiency of 21.57% and a rated power output of 670 W, which appears in the listing at Rank 43.

URECO is a manufacturer formed from the merger of 3 leading Taiwanese cell manufacturers – Neo Solar Power, Gintech, and Solartech. The company offers products based on all 3 mainstream cell technologies – PERC, TOPCon, and HJT. While its PERC products were already part of our earlier listing, the modules based on the 2 remaining advanced cell technologies were included in our August 2023 edition. Named GLORY, the company’s TOPCon series is represented by its FBF580B8D model featuring an efficiency of 22.45%, which places it in a shared 24^th rank. URECO’s HJT module, with a rated efficiency of 22.44%, very narrowly misses the spot by 0.01%, slotting in 2 ranks down at 27^th. Called GLORY HELLO, the module is built with 120 half-cells of the 210 mm wafer format and has a power rating of 635 W.

Yingli Solar is one of the early adopters of n-type wafer-based cell architectures. It has 5 GW of cell production capacity for TOPCon and 20 GW of module capacity for PERC and TOPCon. Yingli entered the list in November 2023 with its PANDA 3.0 PRO, a TOPCon module product that remains unaltered since then. The listed TOPCon bifacial module, comprising 156 half-cells with MBB interconnection, has been rated at 22.36% efficiency and 625 W. In the August 2025 edition, its efficiency value has been rounded up to 22.4% with no change in power rating, reclaiming its January rank of 27^th. After Akcome’s delisting in January 2025, Yingli had moved from 28^th to 27^th, but subsequent efficiency advancements by other manufacturers pushed it down to 29^th in June. It briefly climbed back to 27^th, before slipping again to 28^th in the current September edition. In addition, Yingli’s YLM 3.0 Plus 1 PERC module, first listed in February 2022, also adopts a new efficiency representation strategy – changing from 21.57% to 21.6%. As a result, this product is now ranked 39^th.

Suntech’s module, which saw a change in April 2024, has remained unaltered since. The Ultra V Pro Plus module with 625 W was replaced with the lower-power 605 W Ultra V Pro. The latter is built with 132 half-cells, while the former consists of 156 half-cells. While its power output has changed, the module’s efficiency remains at 22.4%, as do its other characteristics, including TOPCon cells and bifacial module technology. Following this update, the module moved from 24^th to 25^th in October 2024,  to 27^th in June 2025, and further down to 28^th in September 2025.. Another Suntech product, first listed in July 2023, boasts an efficiency of 21.7% and ranks 35^th, thus making it one of the highest-rated modules in the PERC category.

Kalyon PV, a Turkey-headquartered vertically integrated PV manufacturer from ingot to module, debuted in March 2024 with its TOPCon module at Rank 24, dropped to 25^th in July, and then to 26^th in October. In the June 2025 edition, the module moved down to 28^th. As a result of Yingli’s efficiency upgrade in August, this module moved a rank down to 29^th, and to 30^th in September 2025. With 4 factories and an R&D center, the company commenced production in 2019. Its TOPCon module, with 22.38% efficiency and 580 W power output, features M10 half-cut cell technology and a bifacial module design. Another module from Kalyon, listed in the PERC category from March 2024 until July 2024, has since been delisted.

Qcells re-entered our list in February 2024 with its TOPCon Q.TRON SMART product, which was replaced with a higher power Q.TRON variant the very next month. While its efficiency remains the same, the Q.TRON module delivers 35 W of additional power over the previous one. Interestingly, despite the power increase, the cell count has reduced from 120 to 108. This is only possible when adopting larger wafer formats. The current 108-cell configuration is most likely based on the M10 wafer format, half-cell, and MBB module technology. According to the website, the module is available in the UK region. Qcells shared the 28^th rank with GCL SI until May 2025. However, with GCL’s transition to a higher efficiency band in June 2025, Qcells’ module moved to an independent 30^th position, and now holds the 32^nd rank.

CECEP Solar Technology is a Chinese cell and module producer founded in 2010, operating around 4 GW of cell and 8 GW of module capacity, according to its website. The company’s TOPCon product is a High Efficiency series bifacial solar module made with 144 half-cells based on M10 n-type wafers. The product is rated with an efficiency of 22.1% and a power output of 570 W. Although the module’s specifications have seen no changes, ranking shifts above it caused the product to move from 30^th to 31^st in June 2025 and to 32^nd in September 2025.

The remaining 19 products in the list feature efficiencies below 22%, of which 2 are HJT-based, while the bulk, or 17, are PERC modules. The number of PERC modules has been declining recently. In July 2024, Kalyon PV’s PERC module was delisted, followed by Tongwei Solar’s product in September. October 2024 saw a module each from Astronergy and Talesun being delisted, and JinkoSolar’s module was delisted in December. In total, 5 PERC modules have been delisted over H2 2024. In January 2025, 2 PERC modules were delisted, one each from Akcome and Risen Energy. In July 2025, EGING PV’s PERC module was removed from our listing, as its datasheet is no longer available on the company’s website. This brings the total number of listed PERC modules down to 17.

Jinergy’s HJT module, which was updated in September 2023, is ranked 33^rd. Its efficiency of 21.85% is 0.17 percentage points higher than its predecessor. The featured JNHM144-475 model is a slightly larger module compared to the previous one, built with 144 cells, and thus boasts a higher power rating of 475 W. It is bifacial too, with a bifaciality of over 85%.

Meyer Burger is offering its HJT product with the same efficiency of 21.8% and a power rating of 390 W, listed 34^th.

Several module series available today have efficiencies slightly exceeding 21.5%, as high-efficiency cell architectures are not a prerequisite for reaching that level. However, in order to design products beyond 21.7%, cell technology is key.

As shown in our recent TOP SOLAR MODULES Analysis Report, PERC in general was unable to support efficiencies above 21.6% until the end of 2023. At the time, modules with efficiencies above 21.6% usually employed cells based on high-efficiency cell architectures such as IBC, TOPCon, or HJT.

Of late, however, we have observed an increase in the number of companies achieving module efficiencies of up to 21.7% with PERC. Until November 2022, LONGi and Risen were part of this group. Canadian Solar joined the list of 21.7% efficiency PERC modules in January, Tongwei in February, DAS Solar in April, and Suntech in July 2023. However, Tongwei’s PERC module with shingled technology was delisted in September, reducing the number of companies sharing the rank at the time from 6 to 5. In the January 2025 edition, Risen Energy discontinued its PERC module, prompting its delisting, and further reducing the number of companies ranked 35^th  to 4.

Following the order of rated power, the second module in this group, the HiKu7 from Canadian Solar, is based on a 132-half-cell configuration with 210 mm wafer size and a rated power of 675 W. DAS Solar’s DAS-DH144PA module is based on a 144-cell and 182 mm wafer format. LONGi’s Hi-MO 5m is built with 144 cells of 182 mm cell size, offering 560 W of power. Suntech’s Ultra V module has a 144-half-cell design based on the 182 mm wafer format and a rated power output of 560 W. As mentioned above, Tongwei’s shingled interconnection technology-based product, with 21.7% efficiency and a power output of 430 W, has been delisted since the company is no longer offering the module.

In December 2024, JinkoSolar’s Tiger Pro module, previously ranked 39^th with an efficiency of 21.68%, was delisted due to the unavailability of its datasheet on the company’s official website. This left Akcome's iChaser PERC module, with the same efficiency of 21.68%, rated power of 560 W, and a 144-cell design using 182 mm wafers, as the sole occupant of the 39^th rank. However, in January 2025, the Akcome module was also delisted as its website was inaccessible. With Talesun’s PERC module delisted in October, the 41^st rank was shared by GCL SI, Trinasolar, and JA Solar, all with an efficiency of 21.6%. Following JinkoSolar’s delisting in December, these 3 modules moved up to 40^th. By January 2025, with the reduction of 3 products, their ranking further shifted to 37^th. In the June 2025 edition, they were pushed to 38^th, following the entry of newer products, slipping one more step 39^th in September 2025 . In the August 2025 edition, Yingli Solar’s PERC module efficiency improved slightly from 21.57% to 21.6%, thus sharing the rank with the other 2 companies. GCL SI, Trinasolar, and Yingli modules share a power rating of 670 W, all featuring 132 half-cells of G12 size. In contrast, JA Solar’s DeepBlue 3.0, built with 156 half-cells of M10 size, has a lower power rating of 605 W.

With Yingli’s move up, the number of modules representing 21.57% efficiency has reduced from 7 to 6. All these 41 rankers have now moved down a position to 42^nd in August and to 43^rd in September 2025. Jinergy, Qn-Solar, Seraphim, Yingli, and ZNSHINE leverage bifacial capabilities, while modules from SolarSpace and URECO are not specified. All these products are built with 132 half-cells of the 210 mm wafer format interconnected with MBB. Not just efficiency, these 6 products have the same rated power of 670 W due to the same wafer format and the number of half-cell strips.

The lowest efficiency of 21.5%, which is also the minimum threshold for inclusion in this list, is currently represented by 3 products at rank 49 – Runergy, Qcells, and CECEP Solar.

In the May 2025 edition, Qcells introduced an update with a new high-power PERC module rated at 600 W, replacing its earlier 590 W version. While the efficiency remains unchanged at 21.5%, the power upgrade positions Qcells ahead of Runergy within this group, based on the alphabetical sorting method.

Summary

In September 2025, the TOP SOLAR MODULES listing expanded to 51 products from 34 manufacturers, one more than last month. Several notable product updates stand out in this edition. Astronergy upgraded its ASTRO N7 TOPCon module from 23.1% and 625 W to 23.3% and 630 W. JA Solar is now represented by the JAM66D45 630/LB module, which replaces JAM72D40 600/MB, also reaching 23.3% efficiency with 630 W power. DAS Solar replaced its DAS-DH156NA with the new DAS-DH132NE, which delivers 23.1% efficiency at 625 W. Meanwhile, DAH Solar made its debut in the list with a Full-Screen TOPCon module achieving 23.02% efficiency and 595 W.

Taken together, these developments make the September edition one of the more notable updates. With Astronergy and JA Solar pushing their TOPCon modules to 23.3%, DAS Solar lifting its long-standing product line to 23.1%, and DAH Solar debuting at 23.02%, the number of companies improving commercial module efficiencies based on TOPCon is increasing. While AIKO, LONGi, and Maxeon continue to dominate the very top of the list with back-contact products above 24%, the latest changes underline how strongly TOPCon suppliers are closing the gap and reshaping the middle tier of the ranking.

Reports: If you want to learn more about the commercial module efficiencies of integrated module producers, please check our latest TOP SOLAR MODULES H1 2025 Report. This TaiyangNews TOP SOLAR MODULES 2024 report summarizes the key findings from over 30 editions published during 2023 and H1-2025 and analyzes the trends and developments for the different cell technologies (PERC, TOPCon, HJT, Back Contact) and listed companies (download the TOP SOLAR MODULES H1-2025 report for free here).