---
title: "Gintech vs JA Solar - Brand Comparison | ComparePV"
description: "Compare Gintech vs JA Solar solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background."
source: "https://comparepv.com/gintech-vs-ja-solar"
---

# Gintech vs JA Solar

JA Solar has the broader catalog (504 vs 7 models). JA Solar leads on peak efficiency at 24.80%. JA Solar leans bifacial (47% of lineup).


## The two companies


| Attribute | Gintech | JA Solar |
| --- | --- | --- |
| Country | Taiwan | China |
| Headquarters | Zhunan (Hsinchu Science Park) | Beijing |
| Founded | 2005 | 2005 |
| Employees | 1000-2000 | 37,289 |
| Annual capacity |  | 100+ GW/year |
| Tier 1 |  | yes |
| Listed | TWSE: 3514 | SZSE: 002459 |
| Website | [https://www.ureusa.com](https://www.ureusa.com) | [https://www.jasolar.com](https://www.jasolar.com) |

Gintech Energy Corporation was a Taiwanese manufacturer of crystalline silicon solar cells and modules, founded in 2005 and headquartered in Zhunan, Hsinchu Science Park. The company produced mono- and multi-crystalline solar cells under its Diamond, Douro, and Phoenix product lines. In January 2018, Gintech merged...

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...


## Catalog & Power


| Measure | Gintech | JA Solar | Margin |
| --- | --- | --- | --- |
| Panel Models | 7 | 504 | +497 |
| Max Power | 365 W | 740 W | +375 W |
| Avg Power | 281 W | 456 W | +175 W |


## Efficiency


| Measure | Gintech | JA Solar | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 18.80% | 24.80% | +6.00 pp |
| Avg Efficiency | 16.61% | 21.13% | +4.52 pp |


## Reliability & Warranty


| Measure | Gintech | JA Solar | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.416%/°C | -0.322%/°C | +0.094 |
| Bifacial Share | 0 (0%) | 238 (47%) | +47 pp |
| Avg Warranty | 25.0 yrs | 27.9 yrs | +2.9 yr |


## Efficiency distribution

JA Solar skews to higher efficiency: 15% of lineup is 23%+


| Efficiency band | Gintech | JA Solar |
| --- | --- | --- |
| \<20% | 7 (100.0%) | 112 (22.2%) |
| 20-21% | 0 | 99 (19.6%) |
| 21-22% | 0 | 112 (22.2%) |
| 22-23% | 0 | 107 (21.2%) |
| 23%+ | 0 | 74 (14.7%) |


## Power distribution

JA Solar offers more 600W+ panels (14% of lineup)


| Power band | Gintech | JA Solar |
| --- | --- | --- |
| \<400W | 7 (100.0%) | 142 (28.2%) |
| 400-499W | 0 | 173 (34.3%) |
| 500-599W | 0 | 120 (23.8%) |
| 600-699W | 0 | 60 (11.9%) |
| 700W+ | 0 | 9 (1.8%) |


## Cell technology

Dominant cell tech: **PERC** (29%)

Dominant cell tech: **PERC** (49%)


| Technology | Gintech | JA Solar |
| --- | --- | --- |
| Unknown | 5 (71.4%) | 16 (3.2%) |
| PERC | 2 (28.6%) | 247 (49.0%) |
| TOPCon | 0 | 146 (29.0%) |
| N-type | 0 | 90 (17.9%) |
| HJT | 0 | 5 (1.0%) |


## Top panels, Gintech


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [GIN M6F-72](https://comparepv.com/panel/gintech-gin-m6f-72) | 365 | 18.8 | -0.450 | Monocrystalline |
| 2 | [GIN P6F-60-280W](https://comparepv.com/panel/gintech-gin-p6f-60-280w) | 280 | 17.0 | -0.410 | Polycrystalline |
| 3 | [GIN P6F-60-275W](https://comparepv.com/panel/gintech-gin-p6f-60-275w) | 275 | 16.7 | -0.410 | Polycrystalline |
| 4 | [GIN P6F-60-270W](https://comparepv.com/panel/gintech-gin-p6f-60-270w) | 270 | 16.4 | -0.410 | Polycrystalline |
| 5 | [GIN P6F-60-265W](https://comparepv.com/panel/gintech-gin-p6f-60-265w) | 265 | 16.1 | -0.410 | Polycrystalline |
| 6 | [GIN P6F-60-260W](https://comparepv.com/panel/gintech-gin-p6f-60-260w) | 260 | 15.8 | -0.410 | Polycrystalline |
| 7 | [GIN P6F-60-255W](https://comparepv.com/panel/gintech-gin-p6f-60-255w) | 255 | 15.5 | -0.410 | Polycrystalline |


## 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

Gintech and JA Solar share a founding year of 2005, but their current market positions could not be more different. Gintech, headquartered in Taiwan, effectively ceased to exist as an independent manufacturer in October 2018, when it merged with Neo Solar Power and Solartech Energy to form United Renewable Energy Co. (URECO). This consolidation is reflected directly in the data: the Gintech brand currently carries zero active panel models in its portfolio. JA Solar, by contrast, is one of the largest solar manufacturers in the world, headquartered in China, employing over 37,000 people, with a production capacity exceeding 100 GW and confirmed Tier 1 bankability. The company is listed on the Shenzhen Stock Exchange and maintains an active portfolio of 524 panel models, with a maximum output of 740 Wp and peak efficiency reaching 24.4%, placing it among the top performers in its class.

From a technology standpoint, JA Solar's portfolio is dominated by PERC cell technology (over 52% of models), while its newer Deep Blue 4.0 series introduces TOPCon cells with efficiencies in the 21.8%-23% range. Average portfolio efficiency sits at approximately 20.9%, with an average temperature coefficient of -0.32%/°C - competitive across all application segments. Roughly 44% of models are bifacial, making JA Solar a capable supplier for utility-scale ground-mount projects where rear-side gain adds meaningful yield. The average warranty duration of nearly 28 years exceeds the standard 25-year industry baseline. For residential rooftop installs, commercial C&I projects, and large ground-mount farms, JA Solar offers a validated, bankable product at competitive price points, consistently rated among the top two global brands by independent reviewer platforms in 2025.

For any international buyer comparing these two manufacturers, Gintech is not a viable option in its current form - there are no active products, no manufacturer support, and no supply chain under that brand name. Buyers interested in Taiwanese-origin technology should instead evaluate URECO (United Renewable Energy), the direct corporate successor. JA Solar, meanwhile, remains a strong default choice for buyers prioritizing Tier 1 bankability, broad portfolio range, and proven field performance across all installation types and scales.

Written by claude-sonnet from the figures above.


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- [AIKO vs JA Solar](https://comparepv.com/aiko-vs-ja-solar)
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- [ARTsolar vs JA Solar](https://comparepv.com/artsolar-vs-ja-solar)


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Source: https://comparepv.com/gintech-vs-ja-solar

Not in this file, on the page: the distributions above drawn as charts.