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

# AIKO vs Just Solar

AIKO has the broader catalog (144 vs 42 models). AIKO leads on peak efficiency at 25.20%.


## The two companies


| Attribute | AIKO | Just Solar |
| --- | --- | --- |
| 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 | Just Solar | Margin |
| --- | --- | --- | --- |
| Panel Models | 144 | 42 | +102 |
| Max Power | 805 W | 740 W | +65 W |
| Avg Power | 581 W | 491 W | +91 W |


## Efficiency


| Measure | AIKO | Just Solar | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 25.20% | 23.82% | +1.38 pp |
| Avg Efficiency | 23.65% | 22.08% | +1.57 pp |


## Reliability & Warranty


| Measure | AIKO | Just Solar | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.271%/°C | -0.306%/°C | +0.036 |
| Bifacial Share | 35 (24%) | 7 (17%) | +8 pp |
| Avg Warranty | 29.5 yrs | 28.5 yrs | +1.1 yr |


## Efficiency distribution

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


| Efficiency band | AIKO | Just Solar |
| --- | --- | --- |
| \<20% | 3 (2.1%) | 0 |
| 20-21% | 3 (2.1%) | 8 (19.0%) |
| 21-22% | 3 (2.1%) | 14 (33.3%) |
| 22-23% | 12 (8.3%) | 6 (14.3%) |
| 23%+ | 123 (85.4%) | 14 (33.3%) |


## Power distribution

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


| Power band | AIKO | Just Solar |
| --- | --- | --- |
| \<400W | 2 (1.4%) | 7 (16.7%) |
| 400-499W | 50 (34.7%) | 21 (50.0%) |
| 500-599W | 5 (3.5%) | 7 (16.7%) |
| 600-699W | 78 (54.2%) | 0 |
| 700W+ | 9 (6.2%) | 7 (16.7%) |


## Cell technology

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

Dominant cell tech: **TOPCon** (52%)


| Technology | AIKO | Just Solar |
| --- | --- | --- |
| Back Contact | 119 (82.6%) | 13 (31.0%) |
| N-type | 17 (11.8%) | 0 |
| PERC | 7 (4.9%) | 0 |
| Flexible | 1 (0.7%) | 0 |
| TOPCon | 0 | 22 (52.4%) |
| HJT | 0 | 7 (16.7%) |


## 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, Just Solar


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [JST-FCMH-740W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-740w-hd) | 740 | 23.8 | -0.260 | Monocrystalline |
| 2 | [JST-FCMH-735W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-735w-hd) | 735 | 23.7 | -0.260 | Monocrystalline |
| 3 | [JST-FCMH-730W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-730w-hd) | 730 | 23.5 | -0.260 | Monocrystalline |
| 4 | [JST-FCMH-725W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-725w-hd) | 725 | 23.3 | -0.260 | Monocrystalline |
| 5 | [JST-FCMH-720W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-720w-hd) | 720 | 23.2 | -0.260 | Monocrystalline |
| 6 | [JST-FCMH-715W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-715w-hd) | 715 | 23.0 | -0.260 | Monocrystalline |
| 7 | [JST-FCMH-710W-HD](https://comparepv.com/panel/just-solar-jst-fcmh-710w-hd) | 710 | 22.9 | -0.260 | Monocrystalline |
| 8 | [JST-EBMH-560W-D](https://comparepv.com/panel/just-solar-jst-ebmh-560w-d) | 560 | 21.9 | -0.360 | Monocrystalline |
| 9 | [JST-EBMH-555W-D](https://comparepv.com/panel/just-solar-jst-ebmh-555w-d) | 555 | 21.7 | -0.360 | Monocrystalline |
| 10 | [JST-EBMH-550W-D](https://comparepv.com/panel/just-solar-jst-ebmh-550w-d) | 550 | 21.5 | -0.360 | Monocrystalline |


## Summary

Just Solar is a China-based manufacturer founded in 2011, with production facilities in Zhejiang province and a self-stated annual capacity of around 1 GW. The company operates primarily as an OEM and ODM supplier, holding certifications including TUV, CE, CEC, and UK MCS, but no confirmed BloombergNEF Tier 1 bankability listing has been identified in publicly available industry data. AIKO Solar, also headquartered in China, was founded in 2009 and has grown substantially, reaching approximately 20 GW of annual module production capacity as of early 2025. AIKO achieved BloombergNEF Tier 1 status in Q3 2024, placing it among the small fraction of global manufacturers that meet the non-recourse project finance threshold used by institutional lenders. In terms of institutional footprint and financial bankability, AIKO holds a significantly stronger position.

AIKO's core differentiation is its proprietary N-type All Back Contact technology, which relocates all conductors to the rear of the cell and has consistently topped global module efficiency rankings since early 2023, with mass-production cell efficiencies reported above 27% and module-level efficiencies approaching 25%. The company targets premium residential rooftops and increasingly commercial rooftop applications, offering a 30-year performance warranty on most of its panel families. Just Solar's product catalog, by contrast, is oriented toward OEM export customers - distributors and project developers seeking standard or custom-specified modules across a range of power classes - and the company does not appear to have a widely reviewed proprietary cell technology differentiated from mainstream offerings.

For a typical buyer in 2025, AIKO is the more compelling default when efficiency, long-term bankability, and installer support matter. Its real-world performance data, Tier 1 classification, and growing international installer network provide greater assurance than Just Solar can currently demonstrate in independent reviews. Just Solar may appeal to procurement teams seeking flexible OEM supply at volume with straightforward specifications, but buyers who need independently verified performance track records will find AIKO's documented standing the stronger choice.

\---LINKS---

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

\- https://www.pv-tech.org/aiko-solar-on-its-australian-expansion-plans-and-15th-anniversary/ \| Aiko Solar on Australian expansion and 15th anniversary - PV Tech \| article

\- https://mcelectrical.com.au/debunking-the-aiko-solar-panel-hype-a-real-world-performance-test/ \| Debunking the AIKO solar panel hype - real-world performance test \| review

\- https://www.enfsolar.com/just-solar \| Just Solar Group Limited profile - ENF Solar \| article

\- https://www.vicoexport.com/en/65510/tier-1-list-of-solar-panel-manufacturers-q1-2026/ \| Tier 1 solar panel manufacturers list Q1 2026 - Vico Export \| article

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 Just Solar](https://comparepv.com/ae-solar-vs-just-solar)
- [AIKO vs AEET](https://comparepv.com/aiko-vs-aeet)
- [AKCOME vs Just Solar](https://comparepv.com/akcome-vs-just-solar)
- [AIKO vs ARTsolar](https://comparepv.com/aiko-vs-artsolar)
- [ASM vs Just Solar](https://comparepv.com/asm-vs-just-solar)


---

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

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