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

# HD Solar vs JA Solar

JA Solar has the broader catalog (504 vs 7 models). JA Solar leads on peak efficiency at 24.80%. HD Solar leans bifacial (100% of lineup).


## The two companies


| Attribute | HD Solar | JA Solar |
| --- | --- | --- |
| Country |  | China |
| Headquarters |  | Beijing |
| Founded |  | 2005 |
| Employees |  | 37,289 |
| Annual capacity |  | 100+ GW/year |
| Tier 1 | no | yes |
| 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 | HD Solar | JA Solar | Margin |
| --- | --- | --- | --- |
| Panel Models | 7 | 504 | +497 |
| Max Power | 635 W | 740 W | +105 W |
| Avg Power | 620 W | 456 W | +164 W |


## Efficiency


| Measure | HD Solar | JA Solar | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 23.50% | 24.80% | +1.30 pp |
| Avg Efficiency | 22.96% | 21.13% | +1.82 pp |


## Reliability & Warranty


| Measure | HD Solar | JA Solar | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.300%/°C | -0.322%/°C | +0.022 |
| Bifacial Share | 7 (100%) | 238 (47%) | +53 pp |
| Avg Warranty | 30.0 yrs | 27.9 yrs | +2.1 yr |


## Efficiency distribution

HD Solar skews to higher efficiency: 57% of lineup is 23%+


| Efficiency band | HD Solar | JA Solar |
| --- | --- | --- |
| 22-23% | 3 (42.9%) | 107 (21.2%) |
| 23%+ | 4 (57.1%) | 74 (14.7%) |
| \<20% | 0 | 112 (22.2%) |
| 20-21% | 0 | 99 (19.6%) |
| 21-22% | 0 | 112 (22.2%) |


## Power distribution

HD Solar offers more 600W+ panels (100% of lineup)


| Power band | HD Solar | JA Solar |
| --- | --- | --- |
| 600-699W | 7 (100.0%) | 60 (11.9%) |
| \<400W | 0 | 142 (28.2%) |
| 400-499W | 0 | 173 (34.3%) |
| 500-599W | 0 | 120 (23.8%) |
| 700W+ | 0 | 9 (1.8%) |


## Cell technology

Dominant cell tech: **TOPCon** (100%)

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


| Technology | HD Solar | JA Solar |
| --- | --- | --- |
| TOPCon | 7 (100.0%) | 146 (29.0%) |
| PERC | 0 | 247 (49.0%) |
| N-type | 0 | 90 (17.9%) |
| Unknown | 0 | 16 (3.2%) |
| HJT | 0 | 5 (1.0%) |


## Top panels, HD Solar


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [HD-N-G12-635](https://comparepv.com/panel/hd-solar-hd-n-g12-635) | 635 | 23.5 | -0.300 | Monocrystalline |
| 2 | [HD-N-G12-630](https://comparepv.com/panel/hd-solar-hd-n-g12-630) | 630 | 23.3 | -0.300 | Monocrystalline |
| 3 | [HD-N-G12-625](https://comparepv.com/panel/hd-solar-hd-n-g12-625) | 625 | 23.1 | -0.300 | Monocrystalline |
| 4 | [HD-N-G12-620](https://comparepv.com/panel/hd-solar-hd-n-g12-620) | 620 | 23.0 | -0.300 | Monocrystalline |
| 5 | [HD-N-G12-615](https://comparepv.com/panel/hd-solar-hd-n-g12-615) | 615 | 22.8 | -0.300 | Monocrystalline |
| 6 | [HD-N-G12-610](https://comparepv.com/panel/hd-solar-hd-n-g12-610) | 610 | 22.6 | -0.300 | Monocrystalline |
| 7 | [HD-N-G12-605](https://comparepv.com/panel/hd-solar-hd-n-g12-605) | 605 | 22.4 | -0.300 | 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

HD Solar and JA Solar represent opposite ends of the solar manufacturing spectrum. JA Solar is a Chinese industrial heavyweight founded in 2005, publicly listed on the Shenzhen Stock Exchange, employing over 37,000 people, and operating a production capacity exceeding 100 GW per year. It holds BloombergNEF Tier 1 bankable status, making it fully acceptable to project lenders and institutional investors worldwide. HD Solar, by contrast, is a much smaller manufacturer without Tier 1 certification and a portfolio of just 7 modules. However, HD Solar positions itself as a specialist: every panel in its lineup uses n-type TOPCon cell technology and is bifacial, delivering an average module efficiency of approximately 22.96% and a peak of 23.5%, figures that sit firmly among the industry's top performers. JA Solar's 524-model catalog is far broader, with PERC still accounting for roughly 52% of its lineup, though its flagship DeepBlue 4.0 and 5.0 TOPCon series push efficiency up to 24.4% and peak power to 740 Wp - among the highest available commercially.

In terms of use cases, HD Solar's tightly curated all-TOPCon, all-bifacial portfolio with an average output of 620 Wp and a 30-year average performance warranty suits space-constrained residential rooftop installs where maximizing yield per square meter is the primary objective. JA Solar's breadth and scale make it equally at home in residential rooftop projects, commercial and industrial (C&I) systems, and large utility-scale ground-mount farms. Its tenth consecutive "Top Performer" designation in PVEL reliability testing and its global after-sales infrastructure reinforce confidence across all project sizes. The average temperature coefficient of -0.322%/°C for JA Solar versus -0.300%/°C for HD Solar is a marginal real-world difference in most temperate climates.

For international buyers and project developers where bankability is a non-negotiable requirement - such as projects backed by debt financing or construction bonds - JA Solar is the clear choice given its Tier 1 status and global track record. HD Solar is an interesting premium niche option for buyers who prioritize the highest available efficiency in a compact, uniform TOPCon-bifacial portfolio and are working in cash-funded or installer-direct contexts where Tier 1 certification is less critical.

Written by claude-sonnet from the figures above.


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

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