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

# Emona Connect vs JA Solar

JA Solar has the broader catalog (504 vs 0 models). JA Solar leans bifacial (47% of lineup).


## The two companies


| Attribute | Emona Connect | JA Solar |
| --- | --- | --- |
| Country | France | China |
| Headquarters | Biarritz | Beijing |
| Founded |  | 2005 |
| Employees |  | 37,289 |
| Annual capacity |  | 100+ GW/year |
| Tier 1 |  | yes |
| Listed |  | SZSE: 002459 |
| Website | [https://www.emona-connect.com](https://www.emona-connect.com) | [https://www.jasolar.com](https://www.jasolar.com) |

Emona Connect is a French company that specializes in providing solutions to replace old solar PV panels with similar ones. They operate in the niche segment of supplying custom-made PV modules for replacement or spare stocks. The company supports solar asset managers, O&M companies, and plant operators, offering...

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 | Emona Connect | JA Solar | Margin |
| --- | --- | --- | --- |
| Panel Models | 0 | 504 | +504 |
| Max Power | 0 W | 740 W | +740 W |
| Avg Power | 0 W | 456 W | +456 W |


## Efficiency


| Measure | Emona Connect | JA Solar | Margin |
| --- | --- | --- | --- |
| Max Efficiency | - | 24.80% |  |
| Avg Efficiency | - | 21.13% |  |


## Reliability & Warranty


| Measure | Emona Connect | JA Solar | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | - | -0.322%/°C |  |
| Bifacial Share | 0 (0%) | 238 (47%) | +47 pp |
| Avg Warranty | - | 27.9 yrs |  |


## Efficiency distribution

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


| Efficiency band | Emona Connect | JA Solar |
| --- | --- | --- |
| \<20% | 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 | Emona Connect | JA Solar |
| --- | --- | --- |
| \<400W | 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** (49%)


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


## 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

Emona Connect is a French company headquartered in Biarritz that occupies a narrow B2B niche - it manufactures custom replacement solar modules for aging PV installations rather than supplying panels for new projects. The company has no Tier 1 standing and does not maintain a broad retail or installer-facing product catalog. JA Solar, by contrast, is one of the world's largest solar panel manufacturers, founded in China in 2005 and listed on the Shenzhen Stock Exchange. With over 37,000 employees, a production capacity exceeding 100 GW, and confirmed Tier 1 bankable status, JA Solar is a globally recognized supplier with a presence across residential, commercial, and utility-scale markets on multiple continents.

Emona Connect's core competency is supplying made-to-order crystalline modules - mono and polycrystalline, framed or unframed, in custom dimensions - to solar asset managers, O&M firms, and power plant operators carrying out curative or preventive maintenance. It addresses a genuine gap in the market: older panels in the 180-330 Wp range that mainstream manufacturers no longer produce, making frame- and dimension-compatible replacements difficult to source through standard channels. JA Solar, by contrast, offers a catalog of 524 panel models with a maximum power output of 740 Wp, an average efficiency of approximately 20.9%, and a maximum tested efficiency of 24.4%. The portfolio spans PERC technology (over 52% of the lineup), TOPCon modules, and bifacial designs accounting for roughly 44% of the range, backed by an average product warranty of nearly 28 years. These characteristics make JA Solar a strong candidate for residential rooftop installs, commercial C&I projects, and large utility-scale ground-mount systems.

For buyers selecting between the two, the comparison is largely context-driven rather than competitive. Emona Connect serves a very specific operational need - sourcing discontinued replacement panels for existing plants - and is not a viable option for any new installation at residential, commercial, or utility scale. JA Solar, holding Tier 1 status and named a Top Performer in PVEL's 2025 Scorecard for the tenth time, is the clear choice for any new project requiring bankable, high-performance modules supported by a credible long-term warranty and a robust global supply chain.

Written by claude-sonnet from the figures above.


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Source: https://comparepv.com/emona-connect-vs-ja-solar