TOP SOLAR MODULES Listing – June 2025

The world’s leading PV manufacturers are primarily based in China, and SNEC is the leading exhibition in the country. With the solar industry facing a situation of overcapacity and prices hitting rock bottom, efficiency is the key differentiator and the most straightforward way to reduce overall costs. This has led to a wave of activity in the June edition of the TOP SOLAR MODULES listing —reflected in the 6 changes featured in this update.

This month’s edition not only brings a bunch of efficiency gains but also an interesting twist – all the leaders managed to retain their top positions even as they raised the bar. While LONGi raised its HPBC module efficiency to 24.2% – matching AIKO’s previous level — AIKO moved a step ahead to 24.4%. Similarly, JA Solar boosted its TOPCon module efficiency to 23.2%, closing in on the HJT benchmark, but Huasun also raised its HJT module efficiency to 23.5%. Among the most notable developments is the entry of a new name to the list: Jetion Solar. The company made its debut with a 22.9% efficient HJT module — the first new entrant to the TOP SOLAR MODULES ranking since Grand Sunergy’s HJT product in October 2024. With this, the total number of featured companies now stands at 33. Also worth noting is GCL SI improving the efficiency of its TOPCon module to 22.53%. Altogether, the June edition showcases 6 updates and now includes 51 high-efficiency products from 33 companies. These performance shifts have also led to some reshuffling in the rankings. While AIKO retains its leadership position, LONGi has now claimed the 2^nd spot for itself, edging ahead of Maxeon, which previously shared that position.

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 and, we also announced the names of the companies that are eligible for the Badge of Excellence. Introduced in 2023 and 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 Excellence Badge 2024 are: AIKO , Astronergy, DMEGC Solar, Huasun, JA Solar, JinkoSolar, LONGi, Maxeon, SPIC, 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 latest edition of our TOP SOLAR MODULES list, compiled in early June 2025, consists of 51 high-efficiency modules from 33 manufacturers. This month’s update features 6 notable changes – 2 in each of the 3 leading high-efficiency technology categories. In the back contact segment, AIKO once again leads the pack by pushing its module efficiency to a new record of 24.4%, while LONGi follows closely with a 24.2% HPBC module. In the HJT category, Huasun improved its top module efficiency to 23.5%, and Jetion Solar made its debut in the TOP SOLAR MODULES list with a 22.9% HJT module – the first new entrant to the ranking in over half a year. For TOPCon, JA Solar increased its module efficiency to 23.2%, while GCL SI raised the performance of its product to 22.53%. The headline, however, belongs at the very top of the list – with AIKO once again redefining the benchmark for commercial module efficiency.

AIKO has retained its top seat ever since announcing 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 that features 24.2% efficiency. This product – AIKO-G655-MCH72M – is built with 144 half-cells of the M10 format, enabling it to reach a power rating of 655 W, 35 W higher than its predecessor. This rise in power rating is not solely due to efficiency improvements, but also to an increase in the module size, i.e., the length, which has been increased from 2,278 mm to 2,382 mm, while the width remains the same at 1,134 mm. It is a monofacial module featuring a grid-free front design for improved aesthetics and uniform appearance. In this latest edition, AIKO has once again raised the bar by commercializing a module with 24.4% efficiency and increasing the power output by 5 W to 660 W. 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 with 24.1% efficiency. In June, LONGi again improved it 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 moves down to 3^rd.

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. LONGi’s previously listed product, LR7-72HYD, and its latest module, LR8-66HYD, share the same external dimensions of 2,382 × 1,134 × 30 mm and the same weight of 33.5 kg. The featured LR8-66HYD module is built with 132 half-cut cells, compared to the 144-cell layout of its predecessor, and achieves a maximum efficiency of 24.2% and a power output of up to 655 W, up slightly from 24.1% and 650 W for the earlier model. Despite the reduced cell count, the new module delivers improved performance, likely due to a change in the wafer configuration apart from design and material enhancements. Additionally, its bifaciality has increased 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 with 24.4% efficiency and a power rating of 660 W under the same Hi-MO 9 series.

Maxeon Solar, as mentioned above, has now moved to 3^rd position following LONGi’s update. Earlier, it secured the 2^nd rank by introducing 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. The Maxeon 7 panel comes with a 40-year performance warranty.

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

Huasun’s HJT module, which was introduced in September 2023, moved to the 4^th position in May 2024 due 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 has once again raised the bar in the latest June 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.

After BC and HJT, the June 2025 edition of TOP SOLAR MODULES also sees a major update in TOPCon technology. This comes from JA Solar, which has improved the efficiency of its best-performing commercial TOPCon module from 23% to 23.2%, accompanied by a 5 W increase in power output to 600 W. The module remains ranked 5^th in the overall list.

JA Solar’s previously best-performing TOPCon module, the JAM72D42 630/LB, which had remained unchanged since August 2023, was replaced in July 2024 by the higher efficiency JAM72D40 590/MB. This new module from the DeepBlue 4.0 series initially featured an efficiency of 22.8%, up from 22.5%, and improved it further to 23% in November 2024. As a result, JA Solar, which was ranked 12^th until July 2024 and 6^th until September, dropped to 7^th in October to share the 5^th rank with the 3 companies mentioned above. Despite having the same 144 half-cells of M10 size and higher efficiency, this module has a lower power rating of 595 W, which is 35 W less than the previous 630 W. This is obviously due to a change in wafer format. JA Solar has developed 3 different half-cell formats derived from a single wafer size of 182 × 199 mm. One format involves cutting the cells into 2 symmetrical pieces along the longer length into 99.5 mm each. Cutting the same cell asymmetrically – one at 105 mm and another at 94 mm – gives 2 additional base formats. The company has designed several module configurations based on these 3 different wafer formats. While not explicitly mentioned in the datasheet, the earlier product, measuring 2,465 mm in height, seems to have been built with 99.5 mm half-cell wafers. The latest product, with a height of 2,278 mm, is most likely based on the smallest wafer size of 94 mm. This is a bifacial double-glass module with a bifaciality of 80±10%, interconnected with 16 busbars, weighing 31.8 kg.

With JA Solar’s move up, the group of companies previously sharing the 23.0% band has now been pushed down a step to 6^th, represented by 4 companies now as opposed to 5 before.

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 210 mm wafers and 132 half-cut cells. 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 has now improved its efficiency to 23% for a rated power of 715 W. As a result of this efficiency improvement, the module’s ranking improved from 16^th to 5^th in the May 2025 edition and down to 6^th in the latest edition.

In December 2023, Tongwei Solar also started offering a 715 W module. Its HJT module, which entered the list ranked 4^th, moved to 5^th in May 2024 and now to 6^th. Till November 2023, Tongwei was only represented in the TOPCon segment and PERC (shingled) modules. With the inclusion of this HJT product, Tongwei is 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 23.0%. Tongwei has also provided production details and a testing report for this panel. The company presented the details of its latest downstream plans at a TaiyangNews Conference here.

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, a high-power 640 W version with 22.9% efficiency was launched, 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, ASTRO N7 replaced ASTRO N5 and improved its ranking from 7^th to 5^th, before moving down to 6^th in the latest edition. This bifacial TOPCon module is built with 132 half-cut cells that are based on 182 mm rectangular wafers. Compared to the previous model, the newly listed N7 series product is slightly shorter in length at 2,382 mm, while the width and thickness remain the same at 1,134 mm and 30 mm. Thus, despite a higher efficiency of 23%, the module has a relatively lower power rating of 620 W. It comes with a bifaciality of 80±5%.

DMEGC Solar’s Infinity series TOPCon module, which was last 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 previous 182 mm 144-half-cell configured module, this module has a 30 W higher rated power (610 W) and boasts an efficiency of 22.8%. This module, which moved up to 6^th from 10^th in the July edition, dropped to 7^th in October and then to 9^th in November. However, this module’s efficiency has improved to 23%, as has its ranking to 5^th from 9^th in March 2025. Along with above 3 companies, the rank of DMEGC Solar also dropped one step down to 6^th. 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%.

Another major highlight in the June edition is the entry of a new company into the TOP  SOLAR MODULES list. Jetion Solar, established in 2004 and operating under the China National Building Materials Group Corporation (CNBM), is a vertically integrated photovoltaic 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 joins the listing with its HJT module, which achieves an efficiency of 22.9% at a rated power output of 710 W. This debut earns the company a 10^th position in the ranking with its JT SLk(B) series module. The product 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.

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’s latest efficiency improvement in May, the module moved down to 10^th, and in the current June edition, it has been pushed further to 11^th. Its 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, with a weight of 38.5±0.5 kg. It features an 85% bifaciality and is supported by a 30-year linear power warranty.

The next efficiency band on our list is 22.8%, which, since July, has been represented by 5 products. It has reduced representation with only 3 products since November, following the advancements of Astronergy and JA Solar, previously part of this group, to higher efficiency. The products at this efficiency mark moved 2 places down to rank 9 in November, and now to 12^th.

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 improvement 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. It now stands at 12^th in June. The product is designed with a TNC cell type and an anodized aluminum alloy frame and features a linear power output warranty of 30 years. 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 11th in May, and now stand at 12^th in the June 2025 update. While SPIC had been promoting a product with an efficiency of 22.3% till August 2023, it made a remarkable change in September 2023 by improving the efficiency of its top product by 0.5% absolute. Its Andromeda 3.0 product series features a top efficiency of 22.8%. The Chinese company has also provided shipment and production data, indicating the product’s commercial availability. 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 is offering a 30-year power warranty for this product.

JinkoSolar, which dropped from 9^th to 11^th in the July 2024 edition and slipped further to 12th in October, remained at that position until recently. It moved down to 13^th in May and now stands at 14^th in the current June 2025 update. The Tiger Neo TOPCon module is offered with a power rating of 585 W. Last updated in September 2022, this panel has a 144-half-cell configuration and an efficiency of 22.65%. This 2 mm dual-glass module has a bifaciality of 80±5%.

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 in May 2025 pushed it down to 13^th, and it now stands at 14^th as of the June edition. This 580 W module is constructed with 144 half-cells using 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 41^st rank on the list. In December 2024, the 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 has significant improvements over the previous model, 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 by one place in the May 2025 edition to 15^th  and now further down to 16^th in June. 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 made in Singapore and is offered with a comprehensive 25-year product and power warranty.

Another major update in this June edition is the introduction of a commercially available high-efficiency TOPCon module from GCL System Integration (GCL SI). A subsidiary of the vertically integrated GCL Group – the globally recognized silicon supplier to the solar industry – GCL SI 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 to share the rank with Qcells. GCL regained its 28^th rank in January 2025, as the number of companies at this position fell from 3 to 2 following REC’s move up in July. Now, in the June edition, the listing is updated with a new commercial product – GCL-NT12/66GDF. This bifacial, half-cell module features n-type TOPCon technology, built on the 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 has significantly improved, jumping from 28^th to 17^th. The design incorporates 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 17^th rank. 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 the current edition, the group’s position has slipped again, now to 19^th.

Risen gets the first mention among the 19^th rankers, a group that is structured according to power first and, if equal, according to alphabetical order. Risen Energy’s Hyper-ion module, which was included in June 2023, remains unchanged. This HJT module from Risen has an efficiency of 22.5%, corresponding to a high rated power of 700 W. The product is built with 132 half-cells, cut from the 210 mm original format, and is bifacial.

DAS Solar's DAS-DH156NA solar module remains unchanged in design. This n-type TOPCon module features 156 half-cells and delivers a power output of 630 W. Built on the 182 mm wafer format, this bifacial half-cell module has 2 mm glass on both sides, offering up to 80% bifaciality.

Canadian Solar’s TopHiKu6 TOPCon model is another module that offers 22.5% efficiency. Entering our list in June 2023. The module, named 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 the 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, to 17^th in November, and further down to 19^th in the current edition.

Runergy, a major Chinese cell manufacturer that recently expanded into module production, had both its TOPCon and PERC products featured for the first time in July 2023. The listed module, HY-DH144N8, is a bifacial TOPCon design 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 band has been occupied by 2 companies since November, down from 3 in October and 4 in April . This reduction is due to the upgraded efficiency of SolarSpace’s TOPCon module in November. 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. In the current June 2025 edition, the group’s position has declined again, now standing at 24^th

Shanghai-headquartered solar cell and module manufacturer Qn-Solar entered our listing in July 2023. Originally a project developer and EPC, the 2014-launched company also operates its own power plants and has been strongly expanding into the manufacturing field recently to reach 69 GW cell and 39 GW module capacity in 2023, according to the company’s website. It is promoting TOPCon modules with an efficiency of up to 22.45%, qualifying it for the shared 24^th  position. Qn-Solar’s listed bifacial TOPCon product has a rated power of 580 W and is built on the 182-wafer format with 144 half-cells. Qn-Solar is also promoting a PERC module that qualifies with an efficiency of 21.57%, which earns it a place in our current listing at the 41^st  position. The PERC module has an output power of 670 W.

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 PERC products were already part of our earlier listing, the modules based on the remaining 2 advanced cell technologies were included in our August 2023 edition. Named GLORY, the company’s TOPCon series is represented by its FBF580B8D model with an efficiency of 22.45%, which means it is the 2^nd company to share the 24^th  rank. URECO’s HJT module, with a rated efficiency of 22.44%, very narrowly misses the spot by 0.01%, thus putting it 2 ranks down at 26^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.

Suntech’s module, which saw a change in April 2024, has remained unchanged 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 had 156 half-cells. While its power output has changed, the module’s efficiency remains the same at 22.4%, as do its other characteristics, such as TOPCon cells and bifacial module technology. Following this update, the module moved from 24^th to 25^th in October 2024 and has held that rank independently. In the current June 2025 edition, it now stands alone at 27^th. Another Suntech product, first listed in July 2023, features an efficiency of 21.7% and holds the 34^th rank, thus making it one of the highest-rated modules in the PERC category.

Kalyon PV, a vertically integrated PV manufacturer from ingot to module production headquartered in Turkey, 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 current June 2025 edition, the module ranks 28^th. The company, which has 4 factories and an R&D center, 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 until July, has since been delisted.

Yingli Solar, one of the early adopters of n-type wafer-based cell architectures, entered the list in November 2023 with its PANDA 3.0 PRO, a TOPCon module product that remains unaltered. The cells used in this module are made from its in-house 5 GW cell production capacity for TOPCon, while the company has 20 GW of module capacity, including PERC and TOPCon. The listed module is built with 156 half-cells. The bifacial module interconnected with MBB technology has an efficiency of 22.36% and a power output of 625 W. Following Akcome’s delisting in January 2025, Yingli moved up one rank from 28^th to 27^th. However, due to recent efficiency advancements by other manufacturers, it now stands 29^th in the June edition. Additionally, another Yingli product in the PERC category, first listed in February 2022, remains in the current edition with a ranking of 41.

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 already in March 2024. 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. However, with GCL’s transition to a higher efficiency band in June 2025, Qcells’ module now holds the 30^th  position independently.

CECEP Solar Technology Zhenjiang is a Chinese cell and module producer founded in 2010 that operates around 4 GW of cell and 8 GW of module capacity, according to its website. CECEP’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. While this module has had no changes to its specifications, the above changes moved it up a rank from 31^st to 30^th. In the current June 2025 edition, it has returned to the 31^st position.

The remaining 20 products in the list feature efficiencies below 22%, of which 2 are HJT-based while the bulk are PERC modules. The number of PERC modules has been declining recently. In July, Kalyon PV’s PERC module, and thus the company itself, was delisted, followed by Tongwei Solar in September. October saw the delisting of a module each from Astronergy and Talesun, 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, reducing the total number of PERC modules in the list to 18.

Jinergy’s HJT module, which was updated in September 2023, is ranked 32^nd . Its efficiency of 21.85% is 0.17 percentage points higher than the previously listed product. Not just efficiency, the featured JNHM144-475 is a slightly larger module compared to the previous one, built with 144 cells, and thus has 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 33^rd.

There are several module series available today with efficiencies slightly exceeding 21.5%, as high-efficiency cell architectures are not a must to reach that level, but 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 reaching 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 34^{th rd} to 4.

Following the order of rated power, the second module of Canadian Solar in this list, the HiKu7, 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 module 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 as the company is not offering the module anymore.

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 the 40^th rank. By January 2025, with the reduction of 3 products, the ranking further shifted to 37^th. In the current June 2025 edition, they have been pushed back to 38^th, following the entry of newer products. GCL SI and Trinasolar’s modules share a power rating of 670 W, both 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.

The next 7 products, with an efficiency of 21.57%, share the 41^st  rank. 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 7 products have the same rated power of 670 W due to the same wafer format and the count of half-cell strips.

EGing PV’s PERC product is the sole occupant of the current 48^th rank. It has a lower efficiency of 21.56%, but the power rating of 670 W is the same as the products from the group above.

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. 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

The June 2025 edition of TaiyangNews’ high-efficiency module listing features 51 products from 33 companies – one additional product from a new entrant compared to the previous edition. Despite the modest numerical change, this update brings several significant developments. In order of efficiency, AIKO now leads the list with a back-contact module achieving a record 24.4%, followed by LONGi, which has improved its back-contact module from 24.1% to 24.2%. Huasun has introduced a new 730 W HJT module with 23.5% efficiency — one of the highest power-rated modules currently available. JA Solar has upgraded its TOPCon module from 23.0% to 23.2%, while Jetion Solar enters the TOP MODULES list for the first time with a 22.9% HJT module. GCL SI has also confirmed commercial availability of its TOPCon module at 22.53% efficiency.

Reports: If you want to learn more about the commercial module efficiencies of integrated module producers, please check our latest TOP SOLAR MODULES 2024 Report. This TaiyangNews TOP SOLAR MODULES 2024 report summarizes the key findings from over 24 editions published during 2023 and 2024 and analyzes the trends and developments for the different cell technologies (PERC, TOPCon, HJT, Back Contact) and listed companies (download the TOP SOLAR MODULES 2024 report for free here).

PS: If you have spotted a solar module somewhere that meets our criteria and is missing from this list, please send us the website link with the product specs to rajee.gattu@taiyangnews.info.

Disclaimer: TaiyangNews does not guarantee the reliability, accuracy or completeness of this TOP SOLAR MODULES Listings content. TaiyangNews does not accept responsibility or liability for any errors in this work