--- title: "JA Solar vs Sungrow - Brand Comparison | ComparePV" description: "Compare JA Solar vs Sungrow solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background." source: "https://comparepv.com/ja-solar-vs-sungrow" --- # JA Solar vs Sungrow JA Solar has the broader catalog (504 vs 0 models). JA Solar leans bifacial (47% of lineup). ## The two companies | Attribute | JA Solar | Sungrow | | --- | --- | --- | | Country | China | China | | Headquarters | Beijing | Hefei | | Founded | 2005 | 1997 | | Employees | 37,289 | 15000-20000 | | Annual capacity | 100+ GW/year | | | Tier 1 | yes | yes | | Listed | SZSE: 002459 | SZSE: 300274 | | Website | [https://www.jasolar.com](https://www.jasolar.com) | [https://www.sungrowpower.com](https://www.sungrowpower.com) | JA Solar is a global leader in the manufacturing of high-performance photovoltaic products. Founded in 2005, the company designs, develops, manufactures, and sells solar cells and modules. JA Solar's products are used in ground-mounted power plants, commercial & industrial rooftop PV systems, and residential rooftop... Sungrow (Sungrow Power Supply Co., Ltd.) is the world's leading manufacturer of solar PV inverters and energy storage systems, headquartered in Hefei, Anhui, China. Founded in 1997, the company specializes in string and central inverters, wind converters, floating PV systems, and utility-scale battery storage... ## Catalog & Power | Measure | JA Solar | Sungrow | Margin | | --- | --- | --- | --- | | Panel Models | 504 | 0 | +504 | | Max Power | 740 W | 0 W | +740 W | | Avg Power | 456 W | 0 W | +456 W | ## Efficiency | Measure | JA Solar | Sungrow | Margin | | --- | --- | --- | --- | | Max Efficiency | 24.80% | - | | | Avg Efficiency | 21.13% | - | | ## Reliability & Warranty | Measure | JA Solar | Sungrow | Margin | | --- | --- | --- | --- | | Avg Temp Coefficient | -0.322%/°C | - | | | Bifacial Share | 238 (47%) | 0 (0%) | +47 pp | | Avg Warranty | 27.9 yrs | - | | ## Efficiency distribution JA Solar skews to higher efficiency: 15% of lineup is 23%+ | Efficiency band | JA Solar | Sungrow | | --- | --- | --- | | \<20% | 112 (22.2%) | 0 | | 20-21% | 99 (19.6%) | 0 | | 21-22% | 112 (22.2%) | 0 | | 22-23% | 107 (21.2%) | 0 | | 23%+ | 74 (14.7%) | 0 | ## Power distribution JA Solar offers more 600W+ panels (14% of lineup) | Power band | JA Solar | Sungrow | | --- | --- | --- | | \<400W | 142 (28.2%) | 0 | | 400-499W | 173 (34.3%) | 0 | | 500-599W | 120 (23.8%) | 0 | | 600-699W | 60 (11.9%) | 0 | | 700W+ | 9 (1.8%) | 0 | ## Cell technology Dominant cell tech: **PERC** (49%) | Technology | JA Solar | Sungrow | | --- | --- | --- | | PERC | 247 (49.0%) | 0 | | TOPCon | 146 (29.0%) | 0 | | N-type | 90 (17.9%) | 0 | | Unknown | 16 (3.2%) | 0 | | HJT | 5 (1.0%) | 0 | ## Top panels, JA Solar | # | Model | Power | Efficiency | Temp. coefficient | Technology | | --- | --- | --- | --- | --- | --- | | 1 | [JAM66D46-740/LB](https://comparepv.com/panel/ja-solar-jam66d46-740-lb) | 740 | 23.8 | -0.290 | Monocrystalline | | 2 | [JAM66D46-735/LB](https://comparepv.com/panel/ja-solar-jam66d46-735-lb) | 735 | 23.7 | -0.290 | Monocrystalline | | 3 | [JAM66D46-730/LB](https://comparepv.com/panel/ja-solar-jam66d46-730-lb) | 730 | 23.5 | -0.290 | Monocrystalline | | 4 | [JAM66D46-725/LB](https://comparepv.com/panel/ja-solar-jam66d46-725-lb) | 725 | 23.3 | -0.290 | Monocrystalline | | 5 | [JAM66D46-720/LB](https://comparepv.com/panel/ja-solar-jam66d46-720-lb) | 720 | 23.2 | -0.290 | Monocrystalline | | 6 | [JAM66D46-715/LB](https://comparepv.com/panel/ja-solar-jam66d46-715-lb) | 715 | 23.0 | -0.290 | Monocrystalline | | 7 | [JAM66D46-710/LB](https://comparepv.com/panel/ja-solar-jam66d46-710-lb) | 710 | 22.9 | -0.290 | Monocrystalline | | 8 | [JAM66D46-705/LB](https://comparepv.com/panel/ja-solar-jam66d46-705-lb) | 705 | 22.7 | -0.290 | Monocrystalline | | 9 | [JAM66D46-700/LB](https://comparepv.com/panel/ja-solar-jam66d46-700-lb) | 700 | 22.5 | -0.290 | Monocrystalline | | 10 | [JAM66D46-695/LB](https://comparepv.com/panel/ja-solar-jam66d46-695-lb) | 695 | 22.4 | -0.290 | Monocrystalline | ## Summary JA Solar and Sungrow are both Chinese manufacturers listed on the Shenzhen Stock Exchange, but a direct comparison between them is inherently asymmetric: JA Solar is one of the world's leading solar module manufacturers, while Sungrow is primarily a global inverter and energy storage systems manufacturer with no solar panel product line (panel count in its portfolio: 0). JA Solar was founded in 2005, employs over 37,000 people, and operates annual production capacity exceeding 100 GW. Its catalog spans 524 module models reaching up to 740 Wp peak power and a maximum efficiency of 24.4%, with an average portfolio efficiency of approximately 20.9%. The dominant cell technology is PERC, representing over 52% of the lineup, alongside a growing TOPCon range. Roughly 44% of the portfolio is bifacial. JA Solar holds Tier 1 bankable status and earned the PVEL "Top Performer" distinction for the tenth consecutive year in 2025. Sungrow, founded in 1997 with 15,000-20,000 employees, is ranked among the top two global inverter manufacturers, holding approximately 30% of global market share and shipping 198 GW of inverters in 2025. The company is rapidly scaling its energy storage division, whose revenue surpassed inverter revenue for the first time in 2025. In practical terms, the two companies serve complementary roles within a solar installation rather than competing head-to-head. JA Solar modules are well-suited to residential rooftop installs where power density and long product warranties matter - the average warranty across its portfolio approaches 28 years. Its broad format range, from compact residential panels to high-power 700+ Wp formats, also makes it a strong contender for commercial C&I projects and utility-scale ground-mount arrays. Sungrow, on the other hand, is the relevant choice at the inverter and battery storage layer, with string inverters, hybrid inverters, and grid-scale storage systems that consistently rank among the most deployed globally. Sungrow is also building its first manufacturing facility outside Asia in Poland, which will improve supply chain proximity and after-sales service across Central Europe. For an international buyer or project developer, these two brands are best viewed as partners in a system rather than alternatives - JA Solar panels paired with a Sungrow inverter represent a well-documented, bankable combination backed by two of the most financially robust Chinese solar manufacturers active in global markets today. Written by claude-sonnet from the figures above. ## Other comparisons - [JA Solar vs A.B. Energy](https://comparepv.com/ja-solar-vs-a-b-energy) - [AE Solar vs Sungrow](https://comparepv.com/ae-solar-vs-sungrow) - [JA Solar vs AEET](https://comparepv.com/ja-solar-vs-aeet) - [AIKO vs Sungrow](https://comparepv.com/aiko-vs-sungrow) - [JA Solar vs AKCOME](https://comparepv.com/ja-solar-vs-akcome) - [ARTsolar vs Sungrow](https://comparepv.com/artsolar-vs-sungrow) --- Source: https://comparepv.com/ja-solar-vs-sungrow Not in this file, on the page: the distributions above drawn as charts.