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

# AIKO vs Sonnex Energie

AIKO has the broader catalog (144 vs 10 models). AIKO leads on peak efficiency at 25.20%. Sonnex Energie leans bifacial (50% of lineup).


## The two companies


| Attribute | AIKO | Sonnex Energie |
| --- | --- | --- |
| Country | China |  |
| Headquarters | Shanghai |  |
| Founded | 2009 |  |
| Employees |  |  |
| Annual capacity |  |  |
| Tier 1 | yes | no |
| Listed | SZSE: 600732 |  |
| Website | [https://www.aikosolar.com](https://www.aikosolar.com) |  |


## Catalog & Power


| Measure | AIKO | Sonnex Energie | Margin |
| --- | --- | --- | --- |
| Panel Models | 144 | 10 | +134 |
| Max Power | 805 W | 440 W | +365 W |
| Avg Power | 581 W | 428 W | +154 W |


## Efficiency


| Measure | AIKO | Sonnex Energie | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 25.20% | 22.50% | +2.70 pp |
| Avg Efficiency | 23.65% | 21.89% | +1.76 pp |


## Reliability & Warranty


| Measure | AIKO | Sonnex Energie | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.271%/°C | -0.315%/°C | +0.044 |
| Bifacial Share | 35 (24%) | 5 (50%) | +26 pp |
| Avg Warranty | 29.5 yrs | 30.0 yrs | +0.5 yr |


## Efficiency distribution

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


| Efficiency band | AIKO | Sonnex Energie |
| --- | --- | --- |
| \<20% | 3 (2.1%) | 0 |
| 20-21% | 3 (2.1%) | 0 |
| 21-22% | 3 (2.1%) | 5 (50.0%) |
| 22-23% | 12 (8.3%) | 5 (50.0%) |
| 23%+ | 123 (85.4%) | 0 |


## Power distribution

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


| Power band | AIKO | Sonnex Energie |
| --- | --- | --- |
| \<400W | 2 (1.4%) | 0 |
| 400-499W | 50 (34.7%) | 10 (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 | Sonnex Energie |
| --- | --- | --- |
| Back Contact | 119 (82.6%) | 0 |
| N-type | 17 (11.8%) | 0 |
| PERC | 7 (4.9%) | 0 |
| Flexible | 1 (0.7%) | 0 |
| TOPCon | 0 | 10 (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, Sonnex Energie


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [SNX-D54HN\*\*\*-M-S (440W)](https://comparepv.com/panel/sonnex-energie-snx-d54hn-m-s-440w) | 440 | 22.5 | -0.310 | Monocrystalline |
| 2 | [SNX-D54HN\*\*\*-M-S (435W)](https://comparepv.com/panel/sonnex-energie-snx-d54hn-m-s-435w) | 435 | 22.3 | -0.310 | Monocrystalline |
| 3 | [SNX-D54HND-435M](https://comparepv.com/panel/sonnex-energie-snx-d54hnd-435m) | 435 | 22.3 | -0.320 | Monocrystalline |
| 4 | [SNX-D54HN\*\*\*-M-S (430W)](https://comparepv.com/panel/sonnex-energie-snx-d54hn-m-s-430w) | 430 | 22.0 | -0.310 | Monocrystalline |
| 5 | [SNX-D54HND-430M](https://comparepv.com/panel/sonnex-energie-snx-d54hnd-430m) | 430 | 22.0 | -0.320 | Monocrystalline |
| 6 | [SNX-D54HN\*\*\*-M-S (425W)](https://comparepv.com/panel/sonnex-energie-snx-d54hn-m-s-425w) | 425 | 21.8 | -0.310 | Monocrystalline |
| 7 | [SNX-D54HND-425M](https://comparepv.com/panel/sonnex-energie-snx-d54hnd-425m) | 425 | 21.8 | -0.320 | Monocrystalline |
| 8 | [SNX-D54HND-420M](https://comparepv.com/panel/sonnex-energie-snx-d54hnd-420m) | 420 | 21.5 | -0.320 | Monocrystalline |
| 9 | [SNX-D54HN\*\*\*-M-S (420W)](https://comparepv.com/panel/sonnex-energie-snx-d54hn-m-s-420w) | 420 | 21.5 | -0.310 | Monocrystalline |
| 10 | [SNX-D54HND-415M](https://comparepv.com/panel/sonnex-energie-snx-d54hnd-415m) | 415 | 21.2 | -0.320 | Monocrystalline |


## Summary

Sonnex Energie is a German-registered solar technology company founded in 2021 and headquartered in Frankfurt am Main. It presents itself as a premium European-branded module maker with self-reported annual production capacity exceeding 2 GW, though no independent Tier 1 or BloombergNEF bankability classification has been confirmed for the brand as of mid-2025. AIKO (Guangdong Aiko Solar Energy Technology Co., Ltd.) is a Chinese manufacturer with roots going back to approximately 2009 and a manufacturing network spanning at least six large-scale factories across China, with an estimated annual production capacity of around 20 GW as of early 2025. AIKO achieved BloombergNEF Tier 1 status in Q3 2024, signaling formal bankability recognition from lenders financing utility-scale projects. On institutional footprint and independently verified scale, AIKO holds the clear advantage.

In terms of products, Sonnex Energie offers a range spanning PERC half-cell modules, N-type TOPCon panels, and IBC modules, with a next-generation TBC (Tunnel Back Contact) line announced for release in Q3 2025 and an integrated smart module format that replaces the standard junction box with a built-in string optimizer. The portfolio targets residential and commercial rooftop segments under a German-brand positioning. AIKO's flagship Neostar series is built around its proprietary ABC (All Back Contact) cell technology, which relocates all metallic contacts to the rear of the cell to maximize light absorption. Mass-produced cell efficiencies have been reported above 27%, with commercial module efficiencies reaching 24-25%, placing AIKO consistently near the top of the Taiyangnews global efficiency rankings since 2023. The Neostar range is primarily aimed at premium residential rooftops where high output per square metre justifies the cost premium.

For a typical buyer in 2025, AIKO is the more defensible default choice - it carries verified bankability credentials, a well-documented efficiency lead grounded in proprietary cell technology, and a track record of independently reviewed installations across multiple markets. Sonnex Energie may appeal to buyers who specifically value a European brand association, but its shorter operating history and absence from major bankability lists make it a harder sell for larger or finance-dependent projects.

\---LINKS---

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

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

\- https://sunsparkenergy.com.au/blog/solar-panels-1/aiko-solar-panels-review-2025-14 \| Aiko Solar Panels Review 2025 - Sun Spark Energy \| review

\- https://www.enfsolar.com/sonnex-energie \| Sonnex Energie GmbH profile - ENF Solar Directory \| review

\- https://www.youtube.com/watch?v=rdkVNV5djeA \| NEW AIKO Neostar 3 Review - Are Aiko Panels the Best in 2025? \| video

Sources:

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

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

\- \[Aiko Solar Panels Review 2025 - Sun Spark Energy\](https://sunsparkenergy.com.au/blog/solar-panels-1/aiko-solar-panels-review-2025-14)

\- \[Sonnex Energie GmbH - ENF Solar Directory\](https://www.enfsolar.com/sonnex-energie)

\- \[NEW AIKO Neostar 3 Review - YouTube\](https://www.youtube.com/watch?v=rdkVNV5djeA)

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 Sonnex Energie](https://comparepv.com/ae-solar-vs-sonnex-energie)
- [AIKO vs AEET](https://comparepv.com/aiko-vs-aeet)
- [AKCOME vs Sonnex Energie](https://comparepv.com/akcome-vs-sonnex-energie)
- [AIKO vs ARTsolar](https://comparepv.com/aiko-vs-artsolar)
- [ASM vs Sonnex Energie](https://comparepv.com/asm-vs-sonnex-energie)


---

Source: https://comparepv.com/aiko-vs-sonnex-energie

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