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

# EGing PV vs JA Solar

JA Solar has the broader catalog (504 vs 131 models). JA Solar leads on peak efficiency at 24.80%.


## The two companies


| Attribute | EGing PV | JA Solar |
| --- | --- | --- |
| Country | China | China |
| Headquarters | Changzhou | Beijing |
| Founded | 2003 | 2005 |
| Employees |  | 37,289 |
| Annual capacity |  | 100+ GW/year |
| Tier 1 | yes | yes |
| Listed | SZSE: 600537 | SZSE: 002459 |
| Website | [https://www.egingpv.com](https://www.egingpv.com) | [https://www.jasolar.com](https://www.jasolar.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...


## Catalog & Power


| Measure | EGing PV | JA Solar | Margin |
| --- | --- | --- | --- |
| Panel Models | 131 | 504 | +373 |
| Max Power | 685 W | 740 W | +55 W |
| Avg Power | 504 W | 456 W | +48 W |


## Efficiency


| Measure | EGing PV | JA Solar | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 22.45% | 24.80% | +2.35 pp |
| Avg Efficiency | 20.90% | 21.13% | +0.24 pp |


## Reliability & Warranty


| Measure | EGing PV | JA Solar | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.336%/°C | -0.322%/°C | +0.014 |
| Bifacial Share | 51 (39%) | 238 (47%) | +8 pp |
| Avg Warranty | 26.9 yrs | 27.9 yrs | +0.9 yr |


## Efficiency distribution

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


| Efficiency band | EGing PV | JA Solar |
| --- | --- | --- |
| \<20% | 13 (9.9%) | 112 (22.2%) |
| 20-21% | 58 (44.3%) | 99 (19.6%) |
| 21-22% | 51 (38.9%) | 112 (22.2%) |
| 22-23% | 9 (6.9%) | 107 (21.2%) |
| 23%+ | 0 | 74 (14.7%) |


## Power distribution

EGing PV offers more 600W+ panels (22% of lineup)


| Power band | EGing PV | JA Solar |
| --- | --- | --- |
| \<400W | 25 (19.1%) | 142 (28.2%) |
| 400-499W | 40 (30.5%) | 173 (34.3%) |
| 500-599W | 37 (28.2%) | 120 (23.8%) |
| 600-699W | 29 (22.1%) | 60 (11.9%) |
| 700W+ | 0 | 9 (1.8%) |


## Cell technology

Dominant cell tech: **PERC** (76%)

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


| Technology | EGing PV | JA Solar |
| --- | --- | --- |
| PERC | 100 (76.3%) | 247 (49.0%) |
| TOPCon | 31 (23.7%) | 146 (29.0%) |
| N-type | 0 | 90 (17.9%) |
| Unknown | 0 | 16 (3.2%) |
| HJT | 0 | 5 (1.0%) |


## Top panels, EGing PV


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [EG-685NT66-HU/BF-DG](https://comparepv.com/panel/eging-pv-eg-685nt66-hu-bf-dg) | 685 | 22.1 | -0.300 | Monocrystalline |
| 2 | [EG-680NT66-HU/BF-DG](https://comparepv.com/panel/eging-pv-eg-680nt66-hu-bf-dg) | 680 | 21.9 | -0.300 | Monocrystalline |
| 3 | [EG-675NT66-HU/BF-DG](https://comparepv.com/panel/eging-pv-eg-675nt66-hu-bf-dg) | 675 | 21.7 | -0.300 | Monocrystalline |
| 4 | [EG-670NT66-HU/BF-DG](https://comparepv.com/panel/eging-pv-eg-670nt66-hu-bf-dg) | 670 | 21.6 | -0.300 | Monocrystalline |
| 5 | [EG-670M66-HU/BF-DG](https://comparepv.com/panel/eging-pv-eg-670m66-hu-bf-dg) | 670 | 21.6 | -0.340 | Monocrystalline |
| 6 | [EG-670M66-HUV](https://comparepv.com/panel/eging-pv-eg-670m66-huv) | 670 | 21.6 | -0.340 | Monocrystalline |
| 7 | [EG-665NT66-HU/BF-DG](https://comparepv.com/panel/eging-pv-eg-665nt66-hu-bf-dg) | 665 | 21.4 | -0.300 | Monocrystalline |
| 8 | [EG-665M66-HU/BF-DG](https://comparepv.com/panel/eging-pv-eg-665m66-hu-bf-dg) | 665 | 21.4 | -0.340 | Monocrystalline |
| 9 | [EG-665M66-HUV](https://comparepv.com/panel/eging-pv-eg-665m66-huv) | 665 | 21.4 | -0.340 | Monocrystalline |
| 10 | [EG-660NT66-HU/BF-DG](https://comparepv.com/panel/eging-pv-eg-660nt66-hu-bf-dg) | 660 | 21.2 | -0.300 | Monocrystalline |


## 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

EGing PV and JA Solar are both Chinese solar module manufacturers listed on the Shenzhen Stock Exchange (SZSE) and both hold Tier 1 bankable status. However, they differ substantially in scale, market position, and financial health. JA Solar, founded in 2005, employs over 37,000 people and operates with a production capacity exceeding 100 GW, ranking it among the top two module manufacturers globally. It placed 2nd worldwide in panel shipments and earned Top Performer status for the tenth consecutive time in PVEL's 2025 reliability scorecard. EGing PV, founded in 2003, is a considerably smaller player that has recently faced severe financial headwinds - reporting a net loss of $288 million in 2024, entering a court-supervised pre-restructuring process in early 2026, and operating its module production line at below 40% capacity with cell facilities partially halted. EGing has since secured RMB 819 million in restructuring financing, but operational recovery remains in progress.

On the technical side, JA Solar leads on peak efficiency (24.4% vs. 22.45% for EGing) and temperature coefficient of power (-0.323%/°C vs. -0.336%/°C), meaning lower performance losses during hot weather - an advantage for utility-scale ground-mount projects with high energy yield requirements. JA Solar's portfolio spans 524 module models, offering solutions for residential rooftop installs, commercial and industrial (C&I) projects, and large utility-scale farms. EGing PV's narrower catalog of 131 models features a higher average module power of 504 Wp compared to JA Solar's 442 Wp, which may suit C&I applications requiring high-wattage panels in constrained roof spaces. Both manufacturers rely primarily on PERC cell technology, with JA Solar showing broader diversification into TOPCon. Bifacial share stands at 44.3% for JA Solar and 38.9% for EGing. Average warranty terms are comparable - roughly 27 years for JA Solar and 27 years for EGing.

For international buyers selecting between the two, JA Solar is the lower-risk choice in 2025-2026. Its financial stability, global supply chain depth, European distribution presence, and independently verified reliability make it suitable across all project types and sizes. EGing PV may appeal on unit price in certain markets, but the ongoing restructuring process raises legitimate concerns about long-term warranty support and after-sales service - a critical consideration given 25-30 year product commitments. Buyers evaluating EGing PV should monitor the outcome of its restructuring before committing to large procurement volumes.

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/eging-pv-vs-ja-solar

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