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

# JA Solar vs MSolar

JA Solar has the broader catalog (504 vs 5 models). JA Solar leads on peak efficiency at 24.80%. JA Solar leans bifacial (47% of lineup).


## The two companies


| Attribute | JA Solar | MSolar |
| --- | --- | --- |
| Country | China |  |
| Headquarters | Beijing |  |
| Founded | 2005 |  |
| Employees | 37,289 |  |
| Annual capacity | 100+ GW/year |  |
| Tier 1 | yes | no |
| Listed | SZSE: 002459 |  |
| Website | [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 | JA Solar | MSolar | Margin |
| --- | --- | --- | --- |
| Panel Models | 504 | 5 | +499 |
| Max Power | 740 W | 370 W | +370 W |
| Avg Power | 456 W | 360 W | +96 W |


## Efficiency


| Measure | JA Solar | MSolar | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 24.80% | 19.80% | +5.00 pp |
| Avg Efficiency | 21.13% | 19.27% | +1.86 pp |


## Reliability & Warranty


| Measure | JA Solar | MSolar | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.322%/°C | -0.360%/°C | +0.038 |
| Bifacial Share | 238 (47%) | 0 (0%) | +47 pp |
| Avg Warranty | 27.9 yrs | 25.0 yrs | +2.9 yr |


## Efficiency distribution

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


| Efficiency band | JA Solar | MSolar |
| --- | --- | --- |
| \<20% | 112 (22.2%) | 5 (100.0%) |
| 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 | MSolar |
| --- | --- | --- |
| \<400W | 142 (28.2%) | 5 (100.0%) |
| 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 | MSolar |
| --- | --- | --- |
| PERC | 247 (49.0%) | 0 |
| TOPCon | 146 (29.0%) | 0 |
| N-type | 90 (17.9%) | 0 |
| Unknown | 16 (3.2%) | 5 (100.0%) |
| 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 |


## Top panels, MSolar


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [MS-370M](https://comparepv.com/panel/msolar-ms-370m) | 370 | 19.8 | -0.360 | Monocrystalline |
| 2 | [MS-365M](https://comparepv.com/panel/msolar-ms-365m) | 365 | 19.5 | -0.360 | Monocrystalline |
| 3 | [MS-360M](https://comparepv.com/panel/msolar-ms-360m) | 360 | 19.3 | -0.360 | Monocrystalline |
| 4 | [MS-355M](https://comparepv.com/panel/msolar-ms-355m) | 355 | 19.0 | -0.360 | Monocrystalline |
| 5 | [MS-350M](https://comparepv.com/panel/msolar-ms-350m) | 350 | 18.8 | -0.360 | Monocrystalline |


## Summary

JA Solar was founded in 2005 in China and has grown into one of the world's largest solar module manufacturers, with a workforce exceeding 37,000 employees and a total production capacity of over 100 GW. The company is listed on the Shenzhen Stock Exchange and holds confirmed Tier 1 bankable status, making it a preferred supplier for project finance and institutional buyers worldwide. In 2024, JA Solar shipped approximately 79 GW of modules - a roughly 40% year-on-year increase - with nearly half of shipments going to overseas markets, reflecting its strong international reach. MSolar, by contrast, is a much smaller and less transparent entity with no Tier 1 status; its catalog consists of only five panel models, and key details such as founding year, headquarters country, and cell technology remain largely undisclosed, raising questions about long-term warranty enforceability.

JA Solar's portfolio of 524 panel models spans a broad power range up to 740 Wp, with an average module efficiency of 20.87% and a peak of 24.4%. The lineup includes 44.3% bifacial models well-suited to utility-scale ground-mount and large commercial C&I projects where rear-side energy gain adds measurable annual yield. The dominant cell technology is PERC at 52.1% of the range, complemented by a growing TOPCon offering, and the average temperature coefficient of -0.323%/°C is favorable for mid-latitude climates. The average warranty duration across the JA Solar portfolio stands at 27.85 years, providing strong long-term investment protection. MSolar offers five panels with a maximum output of 370 Wp, average efficiency of 19.27%, no bifacial options, and a 25-year warranty - a profile that could, in principle, address basic small-scale residential rooftop installs where budget is the overriding concern and technical requirements are modest.

For international buyers comparing the two manufacturers, JA Solar is the clear and well-supported choice across all project categories - residential, commercial, and utility-scale - owing to its Tier 1 bankability, extensive product depth, and independently verified performance record including repeated top rankings in PVEL scorecards. MSolar's narrow catalog, unknown cell technology, and lack of verifiable market standing make it very difficult to recommend for any project where long-term warranty support, supply chain reliability, and financing compatibility are essential criteria.

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


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

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