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

# Emmvee vs JA Solar

JA Solar has the broader catalog (504 vs 166 models). JA Solar leads on peak efficiency at 24.80%.


## The two companies


| Attribute | Emmvee | JA Solar |
| --- | --- | --- |
| Country | India | China |
| Headquarters | Bengaluru | Beijing |
| Founded | 1992 | 2005 |
| Employees |  | 37,289 |
| Annual capacity |  | 100+ GW/year |
| Tier 1 | no | yes |
| Listed |  | SZSE: 002459 |
| Website | [https://www.emmveephotovoltaic.com](https://www.emmveephotovoltaic.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 | Emmvee | JA Solar | Margin |
| --- | --- | --- | --- |
| Panel Models | 166 | 504 | +338 |
| Max Power | 720 W | 740 W | +20 W |
| Avg Power | 526 W | 456 W | +70 W |


## Efficiency


| Measure | Emmvee | JA Solar | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 23.51% | 24.80% | +1.29 pp |
| Avg Efficiency | 21.69% | 21.13% | +0.55 pp |


## Reliability & Warranty


| Measure | Emmvee | JA Solar | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.311%/°C | -0.322%/°C | +0.011 |
| Bifacial Share | 91 (55%) | 238 (47%) | +8 pp |
| Avg Warranty | 27.0 yrs | 27.9 yrs | +0.9 yr |


## Efficiency distribution

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


| Efficiency band | Emmvee | JA Solar |
| --- | --- | --- |
| \<20% | 1 (0.6%) | 112 (22.2%) |
| 20-21% | 48 (28.9%) | 99 (19.6%) |
| 21-22% | 47 (28.3%) | 112 (22.2%) |
| 22-23% | 54 (32.5%) | 107 (21.2%) |
| 23%+ | 16 (9.6%) | 74 (14.7%) |


## Power distribution

Emmvee offers more 600W+ panels (16% of lineup)


| Power band | Emmvee | JA Solar |
| --- | --- | --- |
| \<400W | 6 (3.6%) | 142 (28.2%) |
| 400-499W | 62 (37.3%) | 173 (34.3%) |
| 500-599W | 72 (43.4%) | 120 (23.8%) |
| 600-699W | 16 (9.6%) | 60 (11.9%) |
| 700W+ | 10 (6.0%) | 9 (1.8%) |


## Cell technology

Dominant cell tech: **TOPCon** (61%)

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


| Technology | Emmvee | JA Solar |
| --- | --- | --- |
| TOPCon | 102 (61.4%) | 146 (29.0%) |
| PERC | 63 (38.0%) | 247 (49.0%) |
| N-type | 1 (0.6%) | 90 (17.9%) |
| Unknown | 0 | 16 (3.2%) |
| HJT | 0 | 5 (1.0%) |


## Top panels, Emmvee


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [E720HCBG 132-T](https://comparepv.com/panel/emmvee-e720hcbg-132-t) | 720 | 23.2 | -0.290 | Monocrystalline |
| 2 | [E720HCBG132-T](https://comparepv.com/panel/emmvee-e720hcbg132-t) | 720 | 23.2 | -0.290 | Monocrystalline |
| 3 | [E715HCBG 132-T](https://comparepv.com/panel/emmvee-e715hcbg-132-t) | 715 | 23.0 | -0.290 | Monocrystalline |
| 4 | [E715HCBG132-T](https://comparepv.com/panel/emmvee-e715hcbg132-t) | 715 | 23.0 | -0.290 | Monocrystalline |
| 5 | [E710HCBG 132-T](https://comparepv.com/panel/emmvee-e710hcbg-132-t) | 710 | 22.9 | -0.290 | Monocrystalline |
| 6 | [E710HCBG132-T](https://comparepv.com/panel/emmvee-e710hcbg132-t) | 710 | 22.9 | -0.290 | Monocrystalline |
| 7 | [E705HCBG 132-T](https://comparepv.com/panel/emmvee-e705hcbg-132-t) | 705 | 22.7 | -0.290 | Monocrystalline |
| 8 | [E705HCBG132-T](https://comparepv.com/panel/emmvee-e705hcbg132-t) | 705 | 22.7 | -0.290 | Monocrystalline |
| 9 | [E700HCBG 132-T](https://comparepv.com/panel/emmvee-e700hcbg-132-t) | 700 | 22.5 | -0.290 | Monocrystalline |
| 10 | [E700HCBG132-T](https://comparepv.com/panel/emmvee-e700hcbg132-t) | 700 | 22.5 | -0.290 | 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

Emmvee and JA Solar represent two fundamentally different positions in the global solar PV manufacturing landscape. Emmvee was founded in 1992 in Bengaluru, India, making it one of the older non-Chinese module manufacturers, with over three decades of operational history. Despite this longevity, it does not currently hold Tier 1 bankable status, which can be a limiting factor in project-financed deals. Its portfolio covers 115 panel models, with an average module output of 510.78 Wp and a maximum of 720 Wp - placing it notably above many peers on a per-module power basis. Average efficiency across the portfolio stands at 21.40%, with a peak of 23.51%. JA Solar, founded in 2005 and headquartered in China, operates at an entirely different scale - it is among the world's largest solar manufacturers with production capacity exceeding 100 GW, more than 37,000 employees, and a listing on the Shenzhen Stock Exchange. JA Solar carries confirmed Tier 1 bankable status and fields a portfolio of 524 panel models. Its maximum module efficiency reaches 24.4%, though the portfolio average of 20.87% is slightly below Emmvee's, reflecting a broader mix of lower-power residential models. Both manufacturers rely primarily on PERC cell technology - Emmvee at 41.74% of its catalogue, JA Solar at 52.10%.

Emmvee's most technically distinctive attribute is its high bifacial ratio - 56.52% of its portfolio consists of bifacial modules, compared to 44.27% for JA Solar. Combined with its higher average module power of 510.78 Wp versus JA Solar's 441.68 Wp, Emmvee is well suited for ground-mount utility-scale installations where rear-side irradiance gain and high per-module yield matter, as well as for space-constrained residential rooftop installs where minimizing module count is a design priority. JA Solar's core competitive advantage lies in its bankability and supply chain scale - Tier 1 status makes it the default choice for utility-scale projects requiring project finance, insurance underwriting, or EPC-level supply continuity. Its 524-model range addresses all segments from small residential to large commercial and industrial (C&I) and grid-scale. Performance warranty terms are nearly equivalent - 27.22 years on average for Emmvee and 27.85 years for JA Solar - and temperature coefficients for Pmax are virtually identical at -0.321%/°C and -0.323%/°C respectively, indicating comparable real-world yield behavior in warm climates.

For international buyers choosing between the two, JA Solar is the lower-risk selection wherever bankability, insurer acceptance, or multi-gigawatt supply security is a hard requirement. Emmvee offers a credible alternative for buyers prioritizing higher average module power and a strong bifacial portfolio, particularly in markets or project structures where Tier 1 certification is not a financing prerequisite. The two manufacturers are closely matched on warranty depth and thermal performance, so the decision ultimately turns on whether institutional project credibility or module-level technical specification carries more weight in a given procurement context.

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/emmvee-vs-ja-solar

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