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

# AIKO vs KIOTO Solar

AIKO has the broader catalog (144 vs 7 models). AIKO leads on peak efficiency at 25.20%. KIOTO Solar leans bifacial (57% of lineup).


## The two companies


| Attribute | AIKO | KIOTO Solar |
| --- | --- | --- |
| Country | China | Austria |
| Headquarters | Shanghai | St. Veit an der Glan |
| Founded | 2009 | 1991 |
| Employees |  | 201-500 |
| Annual capacity |  | \<1 GW/year |
| Tier 1 | yes | no |
| Listed | SZSE: 600732 |  |
| Website | [https://www.aikosolar.com](https://www.aikosolar.com) | [https://www.kiotosolar.com](https://www.kiotosolar.com) |

KIOTO Solar (KIOTO Photovoltaics GmbH) is an Austrian manufacturer of photovoltaic modules, producing panels exclusively at its facility in St. Veit an der Glan, Carinthia. The company traces its roots to 1991 as part of the Sonnenkraft group, with PV module production beginning in 2005. It is the market leader for PV...


## Catalog & Power


| Measure | AIKO | KIOTO Solar | Margin |
| --- | --- | --- | --- |
| Panel Models | 144 | 7 | +137 |
| Max Power | 805 W | 450 W | +355 W |
| Avg Power | 581 W | 446 W | +136 W |


## Efficiency


| Measure | AIKO | KIOTO Solar | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 25.20% | 22.83% | +2.37 pp |
| Avg Efficiency | 23.65% | 22.53% | +1.12 pp |


## Reliability & Warranty


| Measure | AIKO | KIOTO Solar | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.271%/°C | -0.309%/°C | +0.038 |
| Bifacial Share | 35 (24%) | 4 (57%) | +33 pp |
| Avg Warranty | 29.5 yrs | 27.1 yrs | +2.4 yr |


## Efficiency distribution

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


| Efficiency band | AIKO | KIOTO Solar |
| --- | --- | --- |
| \<20% | 3 (2.1%) | 0 |
| 20-21% | 3 (2.1%) | 0 |
| 21-22% | 3 (2.1%) | 0 |
| 22-23% | 12 (8.3%) | 7 (100.0%) |
| 23%+ | 123 (85.4%) | 0 |


## Power distribution

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


| Power band | AIKO | KIOTO Solar |
| --- | --- | --- |
| \<400W | 2 (1.4%) | 0 |
| 400-499W | 50 (34.7%) | 7 (100.0%) |
| 500-599W | 5 (3.5%) | 0 |
| 600-699W | 78 (54.2%) | 0 |
| 700W+ | 9 (6.2%) | 0 |


## Cell technology

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

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


| Technology | AIKO | KIOTO Solar |
| --- | --- | --- |
| Back Contact | 119 (82.6%) | 0 |
| N-type | 17 (11.8%) | 0 |
| PERC | 7 (4.9%) | 0 |
| Flexible | 1 (0.7%) | 0 |
| TOPCon | 0 | 7 (100.0%) |


## 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 |


## Top panels, KIOTO Solar


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [KPV 450 Wp HC NE](https://comparepv.com/panel/kioto-solar-kpv-450-wp-hc-ne) | 450 | 22.5 | -0.300 | Monocrystalline |
| 2 | [KPV 450Wp HC](https://comparepv.com/panel/kioto-solar-kpv-450wp-hc) | 450 | 22.5 | -0.320 | Monocrystalline |
| 3 | [KPV 450Wp HC NE (G/G-TC)](https://comparepv.com/panel/kioto-solar-kpv-450wp-hc-ne-g-g-tc) | 450 | 22.5 | -0.300 | Monocrystalline |
| 4 | [KPV 445Wp HC](https://comparepv.com/panel/kioto-solar-kpv-445wp-hc) | 445 | 22.8 | -0.320 | Monocrystalline |
| 5 | [KPV 445Wp HC NE (G/G-TC)](https://comparepv.com/panel/kioto-solar-kpv-445wp-hc-ne-g-g-tc) | 445 | 22.8 | -0.300 | Monocrystalline |
| 6 | [KPV 440 Wp HCB](https://comparepv.com/panel/kioto-solar-kpv-440-wp-hcb) | 440 | 22.0 | -0.320 | Monocrystalline |
| 7 | [KPV 440Wp HC NE (G/G-TC)](https://comparepv.com/panel/kioto-solar-kpv-440wp-hc-ne-g-g-tc) | 440 | 22.5 | -0.300 | Monocrystalline |


## Summary

KIOTO Solar (KIOTO Photovoltaics GmbH) is an Austrian manufacturer with over two decades of operating history, producing modules under the SONNENKRAFT group at its facility in St. Veit/Glan, Austria. The company holds the position of market leader in Austria and distributes across Central Europe, with a production capacity estimated in the hundreds of megawatts - well below the gigawatt scale associated with BloombergNEF Tier 1 recognition, which KIOTO does not appear to hold. AIKO Solar, headquartered in China, operates at an entirely different scale, reporting approximately 20 GW of annual production capacity and achieving BloombergNEF Tier 1 status in Q3 2024. By institutional footprint and global bankability, AIKO carries considerably more weight on the international stage.

KIOTO Solar's portfolio is built around mono PERC and TOPCon half-cell modules in roughly the 290-450 W range, targeting residential rooftops and small-to-medium commercial installations in European markets. Its core value proposition is European manufacturing provenance and an established local service network suited to buyers for whom supply-chain origin is a procurement criterion. AIKO, by contrast, has staked its reputation on its proprietary ABC (All Back Contact) n-type cell technology, which moves all electrical contacts to the rear of the cell to eliminate front-side shading losses and push efficiency higher. Its Neostar series targets premium residential rooftops with module efficiency confirmed at up to 24.3%, while the higher-wattage Comet series addresses commercial and industrial rooftop projects. AIKO's Neostar range took first place in the 2025 SolarQuotes Installers' Choice Award in Australia, reflecting growing installer confidence in the technology.

For European buyers who weight local manufacturing, straightforward procurement logistics, and a long-standing regional warranty network, KIOTO Solar is a credible and defensible choice. For buyers prioritizing maximum efficiency per square meter and globally recognized bankability, AIKO's ABC modules occupy a clear lead at the high-efficiency end of the market in 2025. The two brands serve overlapping but not identical buyer profiles - KIOTO is a regional specialist with deep European roots, while AIKO is a high-efficiency technology leader with a rapidly expanding global presence.

\---LINKS---

\- https://www.pv-magazine.com/2025/02/07/aiko-launches-new-rooftop-solar-panels-with-24-3-efficiency/ \| Aiko launches new rooftop solar panels with 24.3% efficiency \| article

\- https://mcelectrical.com.au/debunking-the-aiko-solar-panel-hype-a-real-world-performance-test/ \| Debunking the AIKO Solar Panel Hype: A Real-World Performance Test \| review

\- https://www.solarquotes.com.au/panels/aiko-solar-review.html \| Aiko Solar Panels Review - SolarQuotes \| review

\- https://www.solarfeeds.com/biz/kioto-solar/ \| KIOTO Solar Company Overview - Production Capacity, Is it Tier 1? \| article

\- https://www.vpsolar.com/en/kioto-solar-best-quality-pv-panels-from-austria/ \| Kioto Solar: best quality PV panels from Austria - VP Solar \| article

Sources:

\- \[Aiko launches new rooftop solar panels with 24.3% efficiency\](https://www.pv-magazine.com/2025/02/07/aiko-launches-new-rooftop-solar-panels-with-24-3-efficiency/)

\- \[Debunking the AIKO Solar Panel Hype: A Real-World Performance Test\](https://mcelectrical.com.au/debunking-the-aiko-solar-panel-hype-a-real-world-performance-test/)

\- \[Aiko Solar Panels Review - SolarQuotes\](https://www.solarquotes.com.au/panels/aiko-solar-review.html)

\- \[KIOTO Solar Company Overview - Production Capacity, Is it Tier 1?\](https://www.solarfeeds.com/biz/kioto-solar/)

\- \[Kioto Solar: best quality PV panels from Austria\](https://www.vpsolar.com/en/kioto-solar-best-quality-pv-panels-from-austria/)

Written by claude-sonnet from the figures above.


## Other comparisons

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


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Source: https://comparepv.com/aiko-vs-kioto-solar

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