---
title: "JA Solar vs Sunova - Brand Comparison | ComparePV"
description: "Compare JA Solar vs Sunova solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background."
source: "https://comparepv.com/ja-solar-vs-sunova"
image: "https://comparepv.com/og/compare/manufacturers/ja-solar/sunova.png"
---

# JA Solar vs Sunova

JA Solar has the broader catalog (504 vs 183 models). JA Solar leads on peak efficiency at 24.80%. Sunova leans bifacial (92% of lineup).


## The two companies


| Attribute | JA Solar | Sunova |
| --- | --- | --- |
| Country | China | China |
| Headquarters | Beijing | Hefei |
| Founded | 2005 | 2008 |
| Employees | 37,289 |  |
| Annual capacity | 100+ GW/year |  |
| Tier 1 | yes | no |
| Listed | SZSE: 002459 |  |
| Website | [https://www.jasolar.com](https://www.jasolar.com) | [https://www.sunovasolar.com](https://www.sunovasolar.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 | Sunova | Margin |
| --- | --- | --- | --- |
| Panel Models | 504 | 183 | +321 |
| Max Power | 740 W | 720 W | +20 W |
| Avg Power | 456 W | 523 W | +67 W |


## Efficiency


| Measure | JA Solar | Sunova | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 24.80% | 23.20% | +1.60 pp |
| Avg Efficiency | 21.13% | 21.60% | +0.46 pp |


## Reliability & Warranty


| Measure | JA Solar | Sunova | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.322%/°C | -0.317%/°C | +0.005 |
| Bifacial Share | 238 (47%) | 168 (92%) | +45 pp |
| Avg Warranty | 27.9 yrs | 28.4 yrs | +0.5 yr |


## Efficiency distribution

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


| Efficiency band | JA Solar | Sunova |
| --- | --- | --- |
| \<20% | 112 (22.2%) | 0 |
| 20-21% | 99 (19.6%) | 46 (25.1%) |
| 21-22% | 112 (22.2%) | 70 (38.3%) |
| 22-23% | 107 (21.2%) | 57 (31.1%) |
| 23%+ | 74 (14.7%) | 10 (5.5%) |


## Power distribution

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


| Power band | JA Solar | Sunova |
| --- | --- | --- |
| \<400W | 142 (28.2%) | 0 |
| 400-499W | 173 (34.3%) | 84 (45.9%) |
| 500-599W | 120 (23.8%) | 58 (31.7%) |
| 600-699W | 60 (11.9%) | 31 (16.9%) |
| 700W+ | 9 (1.8%) | 10 (5.5%) |


## Cell technology

Dominant cell tech: PERC (49%)

Dominant cell tech: PERC (49%)


| Technology | JA Solar | Sunova |
| --- | --- | --- |
| PERC | 247 (49.0%) | 89 (48.6%) |
| TOPCon | 146 (29.0%) | 12 (6.6%) |
| N-type | 90 (17.9%) | 72 (39.3%) |
| Unknown | 16 (3.2%) | 10 (5.5%) |
| 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, Sunova


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [TS-BGT66(720)-G12](https://comparepv.com/panel/sunova-ts-bgt66-720-g12) | 720 | 23.2 | -0.300 | Monocrystalline |
| 2 | [TS-BWT66(720)-G12](https://comparepv.com/panel/sunova-ts-bwt66-720-g12) | 720 | 23.2 | -0.290 | Monocrystalline |
| 3 | [TS-BGT66(715)-G12](https://comparepv.com/panel/sunova-ts-bgt66-715-g12) | 715 | 23.0 | -0.300 | Monocrystalline |
| 4 | [TS-BWT66(715)-G12](https://comparepv.com/panel/sunova-ts-bwt66-715-g12) | 715 | 23.0 | -0.290 | Monocrystalline |
| 5 | [TS-BGT66(710)-G12](https://comparepv.com/panel/sunova-ts-bgt66-710-g12) | 710 | 22.9 | -0.300 | Monocrystalline |
| 6 | [TS-BWT66(710)-G12](https://comparepv.com/panel/sunova-ts-bwt66-710-g12) | 710 | 22.9 | -0.290 | Monocrystalline |
| 7 | [TS-BGT66(705)-G12](https://comparepv.com/panel/sunova-ts-bgt66-705-g12) | 705 | 22.7 | -0.300 | Monocrystalline |
| 8 | [TS-BWT66(705)-G12](https://comparepv.com/panel/sunova-ts-bwt66-705-g12) | 705 | 22.7 | -0.290 | Monocrystalline |
| 9 | [TS-BGT66(700)-G12](https://comparepv.com/panel/sunova-ts-bgt66-700-g12) | 700 | 22.5 | -0.300 | Monocrystalline |
| 10 | [TS-BWT66(700)-G12](https://comparepv.com/panel/sunova-ts-bwt66-700-g12) | 700 | 22.5 | -0.290 | Monocrystalline |


## Summary

JA Solar, founded in 2005 and headquartered in China, is one of the world's largest solar module manufacturers, with over 37,000 employees and an annual production capacity exceeding 100 GW. The company holds Tier 1 bankable status and has received the highest AAA rating in PV ModuleTech's bankability rankings, reflecting strong financial and manufacturing credentials that are widely recognized by project lenders and insurers globally. It is listed on the Shenzhen Stock Exchange and consistently ranks among the top three module suppliers by global shipment volume. Sunova, founded in 2008 and also based in China, occupies a substantially smaller position in the market and does not currently hold Tier 1 bankable status - a distinction that carries real consequences for project financing, insurance underwriting, and institutional procurement decisions. Both companies operate within China's highly competitive PV manufacturing ecosystem, but differ sharply in scale, brand recognition, and access to international capital markets.

JA Solar's portfolio spans 524 module models, with a maximum output of 740 Wp and a peak efficiency of 24.4%, while average module power sits at approximately 442 Wp and average efficiency at 20.9%. Roughly 52% of its lineup is built on PERC cell technology, complemented by higher-tier n-type and bifacial variants. This breadth makes JA Solar well-suited to virtually all installation segments - from residential rooftop installs where cost-effective mid-power modules dominate, to utility-scale ground-mount and commercial C&I projects demanding high-power bifacial products with bankable supply chains. Sunova's portfolio is narrower at 183 models, but skews decisively toward high-power, high-efficiency products: average module power reaches approximately 523 Wp, average efficiency is 21.6%, and 91.8% of the lineup is bifacial. This concentration positions Sunova as a strong fit for ground-mount installations and large C&I projects where rear-side energy gains and higher per-module output are priorities. Sunova also edges ahead on average temperature coefficient (-0.317%/°C vs. -0.323%/°C for JA Solar) and average warranty length (28.4 years vs. 27.9 years).

For buyers and developers where bankability and lender approval are non-negotiable - utility-scale projects, financed C&I portfolios, or installations subject to insurance underwriting - JA Solar's Tier 1 and AAA-rated status make it the lower-risk selection. Sunova can be a compelling alternative for self-funded projects or buyers specifically targeting dense, bifacial ground-mount systems where Tier 1 status is not a hard contractual requirement, and where the higher average module power and efficiency translate directly into better economics per installation.

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


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

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