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

# Hounen Solar vs JA Solar

JA Solar has the broader catalog (504 vs 44 models). JA Solar leads on peak efficiency at 24.80%. Hounen Solar leans bifacial (86% of lineup).


## The two companies


| Attribute | Hounen Solar | JA Solar |
| --- | --- | --- |
| Country | China | China |
| Headquarters | Haining | Beijing |
| Founded | 2010 | 2005 |
| Employees | 200-500 | 37,289 |
| Annual capacity | 1-2 GW/year | 100+ GW/year |
| Tier 1 |  | yes |
| Listed |  | SZSE: 002459 |
| Website | [https://www.hounensolar.com](https://www.hounensolar.com) | [https://www.jasolar.com](https://www.jasolar.com) |

Hounen Solar (Zhejiang Haoneng Optoelectronics) is a Chinese solar PV module manufacturer with its U.S. operations branded as Hounen Solar America. The company produces solar panels for residential, commercial, and utility-scale applications, and in 2023 established a 1 GW module assembly facility in Orangeburg, South...

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 | Hounen Solar | JA Solar | Margin |
| --- | --- | --- | --- |
| Panel Models | 44 | 504 | +460 |
| Max Power | 725 W | 740 W | +15 W |
| Avg Power | 569 W | 456 W | +112 W |


## Efficiency


| Measure | Hounen Solar | JA Solar | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 23.34% | 24.80% | +1.46 pp |
| Avg Efficiency | 21.75% | 21.13% | +0.61 pp |


## Reliability & Warranty


| Measure | Hounen Solar | JA Solar | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.325%/°C | -0.322%/°C | +0.003 |
| Bifacial Share | 38 (86%) | 238 (47%) | +39 pp |
| Avg Warranty | 28.6 yrs | 27.9 yrs | +0.8 yr |


## Efficiency distribution

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


| Efficiency band | Hounen Solar | JA Solar |
| --- | --- | --- |
| 20-21% | 7 (15.9%) | 99 (19.6%) |
| 21-22% | 20 (45.5%) | 112 (22.2%) |
| 22-23% | 14 (31.8%) | 107 (21.2%) |
| 23%+ | 3 (6.8%) | 74 (14.7%) |
| \<20% | 0 | 112 (22.2%) |


## Power distribution

Hounen Solar offers more 600W+ panels (43% of lineup)


| Power band | Hounen Solar | JA Solar |
| --- | --- | --- |
| \<400W | 1 (2.3%) | 142 (28.2%) |
| 400-499W | 10 (22.7%) | 173 (34.3%) |
| 500-599W | 14 (31.8%) | 120 (23.8%) |
| 600-699W | 13 (29.5%) | 60 (11.9%) |
| 700W+ | 6 (13.6%) | 9 (1.8%) |


## Cell technology

Dominant cell tech: **N-type** (48%)

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


| Technology | Hounen Solar | JA Solar |
| --- | --- | --- |
| Unknown | 23 (52.3%) | 16 (3.2%) |
| N-type | 21 (47.7%) | 90 (17.9%) |
| PERC | 0 | 247 (49.0%) |
| TOPCon | 0 | 146 (29.0%) |
| HJT | 0 | 5 (1.0%) |


## Top panels, Hounen Solar


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [HNM8-GPLDD132-725/N](https://comparepv.com/panel/hounen-solar-hnm8-gpldd132-725-n) | 725 | 23.3 | -0.300 | Monocrystalline |
| 2 | [HNM8-GPLDD132-720/N](https://comparepv.com/panel/hounen-solar-hnm8-gpldd132-720-n) | 720 | 23.2 | -0.300 | Monocrystalline |
| 3 | [HNM8-GPLDD132-715/N](https://comparepv.com/panel/hounen-solar-hnm8-gpldd132-715-n) | 715 | 23.0 | -0.300 | Monocrystalline |
| 4 | [HNM8-GPLDD132-710/N](https://comparepv.com/panel/hounen-solar-hnm8-gpldd132-710-n) | 710 | 22.9 | -0.300 | Monocrystalline |
| 5 | [HNM8-GPLDD132-705/N](https://comparepv.com/panel/hounen-solar-hnm8-gpldd132-705-n) | 705 | 22.7 | -0.300 | Monocrystalline |
| 6 | [HNM8-GPLDD132-700/N](https://comparepv.com/panel/hounen-solar-hnm8-gpldd132-700-n) | 700 | 22.5 | -0.300 | Monocrystalline |
| 7 | [HNM8-TPLDD132-670/M](https://comparepv.com/panel/hounen-solar-hnm8-tpldd132-670-m) | 670 | 21.6 | -0.340 | Monocrystalline |
| 8 | [HNM8-TPLDD132-665/M](https://comparepv.com/panel/hounen-solar-hnm8-tpldd132-665-m) | 665 | 21.4 | -0.340 | Monocrystalline |
| 9 | [HNM8-TPLDD132-660/M](https://comparepv.com/panel/hounen-solar-hnm8-tpldd132-660-m) | 660 | 21.2 | -0.340 | Monocrystalline |
| 10 | [HNM8-TPLDD132-655/M](https://comparepv.com/panel/hounen-solar-hnm8-tpldd132-655-m) | 655 | 21.1 | -0.340 | 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

Hounen Solar is a Chinese-founded PV manufacturer established in 2010, operating with 200-500 employees and a production capacity in the range of 1-2 GW annually. The company does not hold Tier 1 bankable status and is not publicly listed on any stock exchange. Its most notable strategic differentiator is its US manufacturing footprint - a 1 GW assembly facility in Orangeburg, South Carolina, serves buyers seeking IRA-compliant, locally assembled modules for the American market. JA Solar, founded in 2005, operates at an entirely different scale: over 37,000 employees, more than 100 GW of annual production capacity, Tier 1 bankable status, and a public listing on the Shenzhen Stock Exchange (SZSE). These fundamentals place JA Solar firmly among the global tier of leading PV manufacturers alongside names like LONGi and Jinko Solar, with the financial credibility and supply chain resilience that institutional buyers and project financiers require.

In terms of product portfolio and technology, JA Solar offers 524 documented panel models with a maximum module power of 740 Wp and a peak efficiency of 24.4%. PERC cell technology accounts for 52% of its lineup, complemented by a growing TOPCon offering under the Deep Blue 4.0 series. Bifacial modules represent roughly 44% of the portfolio, and the average product warranty stands at nearly 28 years. This breadth makes JA Solar well suited for residential rooftop installs requiring mid-range efficiency at competitive cost, commercial C&I projects demanding reliable bankable supply chains, and utility-scale ground-mount developments where bifacial gain and long-term degradation guarantees are critical procurement criteria. Hounen Solar, by contrast, offers a narrower product range focused on PERC modules between 400 W and 720 W, primarily targeting the US residential and light commercial segment where its domestic assembly status carries a pricing and compliance advantage under the Inflation Reduction Act.

For international buyers - including European project developers and installers - evaluating these two manufacturers, JA Solar is the substantially stronger choice across all dimensions: verified Tier 1 bankability, a far larger and more diverse module portfolio, independently confirmed reliability through PVEL Top Performer recognition, and a decades-long track record across global markets. Hounen Solar is a niche player best evaluated specifically in the context of US market IRA compliance requirements, where its local assembly status adds tangible value that JA Solar's imported modules cannot match without additional qualification.

Written by claude-sonnet from the figures above.


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


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

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