---
title: "AU Optronics vs JS Solar - Brand Comparison | ComparePV"
description: "Compare AU Optronics vs JS Solar solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background."
source: "https://comparepv.com/au-optronics-vs-js-solar"
---

# AU Optronics vs JS Solar

JS Solar has the broader catalog (137 vs 1 models). JS Solar leads on peak efficiency at 22.45%.


## The two companies


| Attribute | AU Optronics | JS Solar |
| --- | --- | --- |
| Country | Taiwan | China |
| Headquarters | Hsinchu | Jinhua |
| Founded | 1996 | 2011 |
| Employees | 41000+ |  |
| Annual capacity |  |  |
| Tier 1 | yes | no |
| Listed | TWSE (Taiwan Stock Exchange): 2409 |  |
| Website | [https://www.auo.com/en-global](https://www.auo.com/en-global) | [https://www.jssolar.com](https://www.jssolar.com) |

AU Optronics (AUO) is a technology-driven company based in Taiwan, specializing in optoelectronics and display solutions. They deliver products and services that advance innovation in areas like display technology, system solutions, industrial intelligence, healthcare, and energy. AUO operates globally across Asia...


## Catalog & Power


| Measure | AU Optronics | JS Solar | Margin |
| --- | --- | --- | --- |
| Panel Models | 1 | 137 | +136 |
| Max Power | 170 W | 670 W | +500 W |
| Avg Power | 170 W | 430 W | +260 W |


## Efficiency


| Measure | AU Optronics | JS Solar | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 16.00% | 22.45% | +6.45 pp |
| Avg Efficiency | 16.00% | 20.03% | +4.03 pp |


## Reliability & Warranty


| Measure | AU Optronics | JS Solar | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.438%/°C | -0.335%/°C | +0.103 |
| Bifacial Share | 0 (0%) | 12 (9%) | +9 pp |
| Avg Warranty | - | 25.1 yrs |  |


## Efficiency distribution


| Efficiency band | AU Optronics | JS Solar |
| --- | --- | --- |
| \<20% | 1 (100.0%) | 44 (32.1%) |
| 20-21% | 0 | 49 (35.8%) |
| 21-22% | 0 | 38 (27.7%) |
| 22-23% | 0 | 6 (4.4%) |


## Power distribution

JS Solar offers more 600W+ panels (5% of lineup)


| Power band | AU Optronics | JS Solar |
| --- | --- | --- |
| \<400W | 1 (100.0%) | 54 (39.4%) |
| 400-499W | 0 | 44 (32.1%) |
| 500-599W | 0 | 32 (23.4%) |
| 600-699W | 0 | 7 (5.1%) |


## Cell technology

Dominant cell tech: **PERC** (39%)


| Technology | AU Optronics | JS Solar |
| --- | --- | --- |
| Unknown | 1 (100.0%) | 76 (55.5%) |
| PERC | 0 | 53 (38.7%) |
| TOPCon | 0 | 8 (5.8%) |


## Top panels, AU Optronics


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [ASM170M](https://comparepv.com/panel/au-optronics-asm170m) | 170 | 16.0 | -0.438 | Monocrystalline |


## Top panels, JS Solar


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [JS210MHC132-670](https://comparepv.com/panel/js-solar-js210mhc132-670) | 670 | 21.6 | -0.340 | Monocrystalline |
| 2 | [JS210MHC132-665](https://comparepv.com/panel/js-solar-js210mhc132-665) | 665 | 21.4 | -0.340 | Monocrystalline |
| 3 | [JS210MHC132-660](https://comparepv.com/panel/js-solar-js210mhc132-660) | 660 | 21.2 | -0.340 | Monocrystalline |
| 4 | [JS210MHC132-655](https://comparepv.com/panel/js-solar-js210mhc132-655) | 655 | 21.1 | -0.340 | Monocrystalline |
| 5 | [JS210MHC132-650](https://comparepv.com/panel/js-solar-js210mhc132-650) | 650 | 20.9 | -0.340 | Monocrystalline |
| 6 | [JS210MHC120-605](https://comparepv.com/panel/js-solar-js210mhc120-605) | 605 | 21.4 | -0.340 | Monocrystalline |
| 7 | [JS210MHC120-600](https://comparepv.com/panel/js-solar-js210mhc120-600) | 600 | 21.2 | -0.340 | Monocrystalline |
| 8 | [JS210MHC120-595](https://comparepv.com/panel/js-solar-js210mhc120-595) | 595 | 21.0 | -0.340 | Monocrystalline |
| 9 | [JS210MHC120-590](https://comparepv.com/panel/js-solar-js210mhc120-590) | 590 | 20.8 | -0.340 | Monocrystalline |
| 10 | [JS210MHC120-585](https://comparepv.com/panel/js-solar-js210mhc120-585) | 585 | 20.7 | -0.340 | Monocrystalline |


## Other comparisons

- [AU Optronics vs A.B. Energy](https://comparepv.com/au-optronics-vs-a-b-energy)
- [AE Solar vs JS Solar](https://comparepv.com/ae-solar-vs-js-solar)
- [AU Optronics vs AEET](https://comparepv.com/au-optronics-vs-aeet)
- [AIKO vs JS Solar](https://comparepv.com/aiko-vs-js-solar)
- [AU Optronics vs AKCOME](https://comparepv.com/au-optronics-vs-akcome)
- [ARTsolar vs JS Solar](https://comparepv.com/artsolar-vs-js-solar)


---

Source: https://comparepv.com/au-optronics-vs-js-solar

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