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

# AU Optronics vs AIKO

AIKO has the broader catalog (144 vs 1 models). AIKO leads on peak efficiency at 25.20%. AIKO leans bifacial (24% of lineup).


## The two companies


| Attribute | AU Optronics | AIKO |
| --- | --- | --- |
| Country | Taiwan | China |
| Headquarters | Hsinchu | Shanghai |
| Founded | 1996 | 2009 |
| Employees | 41000+ |  |
| Annual capacity |  |  |
| Tier 1 | yes | yes |
| Listed | TWSE (Taiwan Stock Exchange): 2409 | SZSE: 600732 |
| Website | [https://www.auo.com/en-global](https://www.auo.com/en-global) | [https://www.aikosolar.com](https://www.aikosolar.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 | AIKO | Margin |
| --- | --- | --- | --- |
| Panel Models | 1 | 144 | +143 |
| Max Power | 170 W | 805 W | +635 W |
| Avg Power | 170 W | 581 W | +411 W |


## Efficiency


| Measure | AU Optronics | AIKO | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 16.00% | 25.20% | +9.20 pp |
| Avg Efficiency | 16.00% | 23.65% | +7.65 pp |


## Reliability & Warranty


| Measure | AU Optronics | AIKO | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.438%/°C | -0.271%/°C | +0.167 |
| Bifacial Share | 0 (0%) | 35 (24%) | +24 pp |
| Avg Warranty | - | 29.5 yrs |  |


## Efficiency distribution

AIKO skews to higher efficiency: 85% of lineup is 23%+


| Efficiency band | AU Optronics | AIKO |
| --- | --- | --- |
| \<20% | 1 (100.0%) | 3 (2.1%) |
| 20-21% | 0 | 3 (2.1%) |
| 21-22% | 0 | 3 (2.1%) |
| 22-23% | 0 | 12 (8.3%) |
| 23%+ | 0 | 123 (85.4%) |


## Power distribution

AIKO offers more 600W+ panels (60% of lineup)


| Power band | AU Optronics | AIKO |
| --- | --- | --- |
| \<400W | 1 (100.0%) | 2 (1.4%) |
| 400-499W | 0 | 50 (34.7%) |
| 500-599W | 0 | 5 (3.5%) |
| 600-699W | 0 | 78 (54.2%) |
| 700W+ | 0 | 9 (6.2%) |


## Cell technology

Dominant cell tech: **Back Contact** (83%)


| Technology | AU Optronics | AIKO |
| --- | --- | --- |
| Unknown | 1 (100.0%) | 0 |
| Back Contact | 0 | 119 (82.6%) |
| N-type | 0 | 17 (11.8%) |
| PERC | 0 | 7 (4.9%) |
| Flexible | 0 | 1 (0.7%) |


## 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, AIKO


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [AIKO-A805-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a805-grh78dw) | 805 | 25.1 | -0.260 | Monocrystalline |
| 2 | [AIKO-A800-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a800-grh78dw) | 800 | 24.9 | -0.260 | Monocrystalline |
| 3 | [AIKO-A795-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a795-grh78dw) | 795 | 24.8 | -0.260 | Monocrystalline |
| 4 | [AIKO-A790-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a790-grh78dw) | 790 | 24.6 | -0.260 | Monocrystalline |
| 5 | [AIKO-A785-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a785-grh78dw) | 785 | 24.4 | -0.260 | Monocrystalline |
| 6 | [AIKO-A780-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a780-grh78dw) | 780 | 24.3 | -0.260 | Monocrystalline |
| 7 | [AIKO-A775-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a775-grh78dw) | 775 | 24.1 | -0.260 | Monocrystalline |
| 8 | [AIKO-A770-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a770-grh78dw) | 770 | 24.0 | -0.260 | Monocrystalline |
| 9 | [AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 | 25.0 | -0.260 | Monocrystalline |
| 10 | [AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 | 24.9 | -0.260 | Monocrystalline |


## Summary

AU Optronics, known commercially as AUO or AUO BenQ Solar, is a Taiwanese manufacturer headquartered in Hsinchu, Taiwan, founded in 2001 primarily as a TFT-LCD display company that extended into solar photovoltaics. It holds confirmed Tier 1 status as a solar module supplier and has received recognition from Taiwan's Ministry of Economic Affairs for its high-efficiency, dual-glass bifacial modules. AIKO Solar is a Chinese manufacturer that achieved BloombergNEF Tier 1 bankable status in 2024 and has scaled rapidly, with operational back-contact cell production in Zhuhai and Yiwu and plans to ship more than 20 GW of modules in 2025. In terms of institutional scale and recent market momentum, AIKO carries the stronger footprint as a dedicated solar business.

AU Optronics serves residential, commercial, and utility segments under product families such as SunBravo, SunPrimo, SunVivo, and Sunforte, with its newer SunAlto line targeting large-format n-type TOPCon cells developed in partnership with SAS, which has recorded average cell efficiencies around 25.5 percent. The brand is generally positioned as a mid-tier reliable option for buyers who want Taiwanese manufacturing provenance. AIKO has built its entire identity around ABC - All-Back-Contact - N-type cell architecture, which relocates all electrical contacts to the rear of the cell, expanding the active light-harvesting surface. This approach has placed AIKO at the top of global module efficiency rankings published by Taiyangnews consistently since March 2023, with mass-production module efficiencies around 25 percent. The Neostar series won first place in the SolarQuotes Installers' Choice Awards in 2025, reflecting strong real-world installer feedback, particularly in European distributed markets.

For a typical buyer in 2025, AIKO is the stronger default if maximum energy yield per square meter or premium residential performance is the priority - though its 15-year product warranty is notably shorter than the 25-year warranty offered on some AUO lines and by most top-tier Chinese peers, which is a material consideration for long-term project financing.

\---LINKS---

\- https://www.pv-magazine.com/2024/10/10/au-optronics-sas-win-pv-awards-in-taiwan-for-high-efficiency-module/ \| AU Optronics, SAS bet on larger high-efficiency solar modules \| article

\- https://www.pv-tech.org/aiko-capacity-upgrades-abc-cell-technology/ \| Aiko steps up ABC transition with 11GW capacity upgrade \| article

\- https://aikosolar.com/en/aiko-achieves-prestigious-tier1-status/ \| AIKO Achieves Prestigious Tier 1 Status by BloombergNEF \| article

\- https://www.solarchoice.net.au/products/panels/aiko-solar-panels-review/ \| Aiko Solar Panels - Independent Review by Solar Choice \| review

\- https://www.solarreviews.com/manufacturers/au-optronics \| AU Optronics solar panels - SolarReviews \| review

Sources:

\- \[AU Optronics, SAS win PV awards in Taiwan for high-efficiency module - pv magazine\](https://www.pv-magazine.com/2024/10/10/au-optronics-sas-win-pv-awards-in-taiwan-for-high-efficiency-module/)

\- \[Aiko steps up ABC transition with 11GW capacity upgrade - PV Tech\](https://www.pv-tech.org/aiko-capacity-upgrades-abc-cell-technology/)

\- \[AIKO Achieves Prestigious Tier 1 Status by BloombergNEF\](https://aikosolar.com/en/aiko-achieves-prestigious-tier1-status/)

\- \[Aiko Solar Panels - Independent Review by Solar Choice\](https://www.solarchoice.net.au/products/panels/aiko-solar-panels-review/)

\- \[AU Optronics solar panels - SolarReviews\](https://www.solarreviews.com/manufacturers/au-optronics)

\- \[AUO BenQ Solar Profile and Reviews - EnergySage\](https://www.energysage.com/supplier/21601/auo-benq-solar/)

\- \[Aiko Solar BC Module Shipments Planned to Exceed 20 GW - EnergyTrend\](https://www.energytrend.com/news/20241128-48809.html)

Written by claude-sonnet from the figures above.


## Other comparisons

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


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Source: https://comparepv.com/au-optronics-vs-aiko

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