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

# JA Solar vs Phono Solar

JA Solar has the broader catalog (504 vs 174 models). JA Solar leads on peak efficiency at 24.80%.


## The two companies


| Attribute | JA Solar | Phono Solar |
| --- | --- | --- |
| Country | China | China |
| Headquarters | Beijing | Nanjing |
| Founded | 2005 | 2004 |
| Employees | 37,289 | 13000+ |
| Annual capacity | 100+ GW/year | 3-4 GW/year |
| Tier 1 | yes | yes |
| Listed | SZSE: 002459 |  |
| Website | [https://www.jasolar.com](https://www.jasolar.com) | [https://www.phonosolar.com](https://www.phonosolar.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...

Phono Solar Technology Co., Ltd. specializes in the research, development, and manufacture of photovoltaic solar panels and is a global provider of solar products and services. The company is affiliated with SUMEC Group, a subsidiary of China National Machinery Industry Corporation (SINOMACH). Phono Solar has been...


## Catalog & Power


| Measure | JA Solar | Phono Solar | Margin |
| --- | --- | --- | --- |
| Panel Models | 504 | 174 | +330 |
| Max Power | 740 W | 730 W | +10 W |
| Avg Power | 456 W | 515 W | +59 W |


## Efficiency


| Measure | JA Solar | Phono Solar | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 24.80% | 23.50% | +1.30 pp |
| Avg Efficiency | 21.13% | 21.77% | +0.64 pp |


## Reliability & Warranty


| Measure | JA Solar | Phono Solar | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.322%/°C | -0.306%/°C | +0.016 |
| Bifacial Share | 238 (47%) | 74 (43%) | +5 pp |
| Avg Warranty | 27.9 yrs | 27.1 yrs | +0.8 yr |


## Efficiency distribution

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


| Efficiency band | JA Solar | Phono Solar |
| --- | --- | --- |
| \<20% | 112 (22.2%) | 3 (1.7%) |
| 20-21% | 99 (19.6%) | 37 (21.3%) |
| 21-22% | 112 (22.2%) | 53 (30.5%) |
| 22-23% | 107 (21.2%) | 62 (35.6%) |
| 23%+ | 74 (14.7%) | 19 (10.9%) |


## Power distribution

Phono Solar offers more 600W+ panels (20% of lineup)


| Power band | JA Solar | Phono Solar |
| --- | --- | --- |
| \<400W | 142 (28.2%) | 10 (5.7%) |
| 400-499W | 173 (34.3%) | 78 (44.8%) |
| 500-599W | 120 (23.8%) | 51 (29.3%) |
| 600-699W | 60 (11.9%) | 23 (13.2%) |
| 700W+ | 9 (1.8%) | 12 (6.9%) |


## Cell technology

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

Dominant cell tech: **PERC** (37%)


| Technology | JA Solar | Phono Solar |
| --- | --- | --- |
| PERC | 247 (49.0%) | 65 (37.4%) |
| TOPCon | 146 (29.0%) | 53 (30.5%) |
| N-type | 90 (17.9%) | 50 (28.7%) |
| Unknown | 16 (3.2%) | 0 |
| HJT | 5 (1.0%) | 5 (2.9%) |
| Back Contact | 0 | 1 (0.6%) |


## 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 |


## Top panels, Phono Solar


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [PS730M13GFH-22/WSHW](https://comparepv.com/panel/phono-solar-co-ltd-phono-solar-technology-co-ltd-ps730m13gfh-22-wshw) | 730 | 23.5 | -0.240 | Monocrystalline |
| 2 | [NS-730MH-132](https://comparepv.com/panel/phono-solar-ns-730mh-132) | 730 | 23.5 | -0.290 | Monocrystalline |
| 3 | [PS725M13GFH-22/WSHW](https://comparepv.com/panel/phono-solar-co-ltd-phono-solar-technology-co-ltd-ps725m13gfh-22-wshw) | 725 | 23.3 | -0.240 | Monocrystalline |
| 4 | [PS720M13GFH-22/WSHW](https://comparepv.com/panel/phono-solar-co-ltd-phono-solar-technology-co-ltd-ps720m13gfh-22-wshw) | 720 | 23.2 | -0.240 | Monocrystalline |
| 5 | [NS-720MH-132](https://comparepv.com/panel/phono-solar-ns-720mh-132) | 720 | 23.2 | -0.290 | Monocrystalline |
| 6 | [PS715M13GFH-22/WSHW](https://comparepv.com/panel/phono-solar-co-ltd-phono-solar-technology-co-ltd-ps715m13gfh-22-wshw) | 715 | 23.0 | -0.240 | Monocrystalline |
| 7 | [PS710M13GFH-22/WNH](https://comparepv.com/panel/phono-solar-technology-co-ltd-ps710m13gfh-22-wnh) | 710 | 22.9 | -0.290 | Monocrystalline |
| 8 | [PS710M13GFH-22/WSHW](https://comparepv.com/panel/phono-solar-co-ltd-phono-solar-technology-co-ltd-ps710m13gfh-22-wshw) | 710 | 22.9 | -0.240 | Monocrystalline |
| 9 | [NS-710MH-132](https://comparepv.com/panel/phono-solar-ns-710mh-132) | 710 | 22.9 | -0.290 | Monocrystalline |
| 10 | [PS705M13GFH-22/WNH](https://comparepv.com/panel/phono-solar-technology-co-ltd-ps705m13gfh-22-wnh) | 705 | 22.7 | -0.290 | Monocrystalline |


## Summary

JA Solar and Phono Solar are both China-based, Tier 1 bankable solar module manufacturers, but they occupy very different positions in the global PV market. JA Solar, founded in 2005 and employing over 37,000 people, has scaled to more than 100 GW of annual production capacity and was jointly ranked as the world's top solar module manufacturer by Wood Mackenzie for the first half of 2025, with reported shipments of approximately 75-79 GW in 2024. Phono Solar, established a year earlier in 2004, operates at a considerably smaller scale with 3-4 GW of production capacity and over 13,000 employees. Despite the scale difference, both hold Tier 1 bankability status and have been recognized as Top Performers in PVEL's PV Module Reliability Scorecard, which is a meaningful signal of product quality for financiers and independent engineers alike.

On the technology and portfolio side, JA Solar offers a substantially broader lineup of 524 panel models, with a maximum module power of 740 Wp and a maximum efficiency of 24.4%. Its portfolio is dominated by PERC technology (52% of models), with an expanding TOPCon presence under the DeepBlue 4.0 series. The wide product range makes JA Solar suitable for virtually every segment - residential rooftop installs, commercial C&I projects, and large-scale utility ground-mount developments - with strong supply chain depth to match. Phono Solar's 173-model portfolio is narrower but technically noteworthy: it delivers a higher average module power of 515 Wp, a higher average efficiency of 21.77% versus 20.87%, and a better average temperature coefficient of -0.306%/°C versus -0.323%/°C, meaning less power loss under heat stress. Phono Solar also offers HJT technology in its Helios series, giving it a premium option for space-constrained commercial and residential rooftop applications.

For international buyers choosing between the two, JA Solar is the lower-risk, higher-availability option backed by unmatched production scale and global distribution reach. Phono Solar suits buyers who prioritize above-average efficiency and thermal performance in a more focused product range, and is a credible choice for commercial C&I or residential projects where roof area is limited and per-watt output matters most.

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 Phono Solar](https://comparepv.com/ae-solar-vs-phono-solar)
- [JA Solar vs AEET](https://comparepv.com/ja-solar-vs-aeet)
- [AIKO vs Phono Solar](https://comparepv.com/aiko-vs-phono-solar)
- [JA Solar vs AKCOME](https://comparepv.com/ja-solar-vs-akcome)
- [ARTsolar vs Phono Solar](https://comparepv.com/artsolar-vs-phono-solar)


---

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

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