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

# G-STAR vs AIKO

AIKO has the broader catalog (144 vs 36 models). AIKO leads on peak efficiency at 25.20%. G-STAR leans bifacial (86% of lineup).


## The two companies


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


## Catalog & Power


| Measure | G-STAR | AIKO | Margin |
| --- | --- | --- | --- |
| Panel Models | 36 | 144 | +108 |
| Max Power | 725 W | 805 W | +80 W |
| Avg Power | 562 W | 581 W | +19 W |


## Efficiency


| Measure | G-STAR | AIKO | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 23.51% | 25.20% | +1.69 pp |
| Avg Efficiency | 22.41% | 23.65% | +1.24 pp |


## Reliability & Warranty


| Measure | G-STAR | AIKO | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.307%/°C | -0.271%/°C | +0.036 |
| Bifacial Share | 31 (86%) | 35 (24%) | +62 pp |
| Avg Warranty | 30.0 yrs | 29.5 yrs | +0.5 yr |


## Efficiency distribution

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


| Efficiency band | G-STAR | AIKO |
| --- | --- | --- |
| 20-21% | 3 (8.3%) | 3 (2.1%) |
| 21-22% | 5 (13.9%) | 3 (2.1%) |
| 22-23% | 18 (50.0%) | 12 (8.3%) |
| 23%+ | 10 (27.8%) | 123 (85.4%) |
| \<20% | 0 | 3 (2.1%) |


## Power distribution

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


| Power band | G-STAR | AIKO |
| --- | --- | --- |
| 400-499W | 11 (30.6%) | 50 (34.7%) |
| 500-599W | 12 (33.3%) | 5 (3.5%) |
| 600-699W | 7 (19.4%) | 78 (54.2%) |
| 700W+ | 6 (16.7%) | 9 (6.2%) |
| \<400W | 0 | 2 (1.4%) |


## Cell technology

Dominant cell tech: **TOPCon** (72%)

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


| Technology | G-STAR | AIKO |
| --- | --- | --- |
| TOPCon | 26 (72.2%) | 0 |
| N-type | 5 (13.9%) | 17 (11.8%) |
| PERC | 5 (13.9%) | 7 (4.9%) |
| Back Contact | 0 | 119 (82.6%) |
| Flexible | 0 | 1 (0.7%) |


## Top panels, G-STAR


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [GSD8K66T-725WT](https://comparepv.com/panel/g-star-gsd8k66t-725wt) | 725 | 23.3 | -0.300 | Monocrystalline |
| 2 | [GSD8K66T-720WT](https://comparepv.com/panel/g-star-gsd8k66t-720wt) | 720 | 23.2 | -0.300 | Monocrystalline |
| 3 | [GSD8K66T-715WT](https://comparepv.com/panel/g-star-gsd8k66t-715wt) | 715 | 23.0 | -0.300 | Monocrystalline |
| 4 | [GSD8K66T-710WT](https://comparepv.com/panel/g-star-gsd8k66t-710wt) | 710 | 22.9 | -0.300 | Monocrystalline |
| 5 | [GSD8K66T-705WT](https://comparepv.com/panel/g-star-gsd8k66t-705wt) | 705 | 22.7 | -0.300 | Monocrystalline |
| 6 | [GSD8K66T-700WT](https://comparepv.com/panel/g-star-gsd8k66t-700wt) | 700 | 22.5 | -0.300 | Monocrystalline |
| 7 | [GSD8R66T-635WT](https://comparepv.com/panel/g-star-gsd8r66t-635wt) | 635 | 23.5 | -0.300 | Monocrystalline |
| 8 | [GSD8R66T-630WT](https://comparepv.com/panel/g-star-gsd8r66t-630wt) | 630 | 23.3 | -0.300 | Monocrystalline |
| 9 | [GSD8R66T-625WT](https://comparepv.com/panel/g-star-gsd8r66t-625wt) | 625 | 23.1 | -0.300 | Monocrystalline |
| 10 | [GSD8R66T-620WT](https://comparepv.com/panel/g-star-gsd8r66t-620wt) | 620 | 22.9 | -0.300 | 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

G-STAR is a Singapore-headquartered solar manufacturer founded in 2019, operating under a vertically integrated model that spans silicon wafers, cells, and finished modules. The company has built a growing manufacturing footprint across Southeast Asia, including a first-phase plant in the Philippines rated at 1 GW of modules and 1.5 GW of cells, with a second phase planned to extend module capacity to 2 GW. No publicly available source confirms G-STAR as a BloombergNEF Tier 1 supplier, which limits its visibility in project-finance contexts where bankability documentation is required. AIKO Solar, by contrast, is a Chinese manufacturer that achieved BloombergNEF Tier 1 status in Q3 2024 and reported roughly 20 GW of nameplate production capacity as of early 2025 - giving it a substantially larger institutional footprint.

AIKO's defining product differentiator is its proprietary ABC (All Back Contact) N-type cell architecture, which relocates all electrical contacts to the rear of the cell so the entire front surface captures light. Multiple independent reviewers confirm module efficiencies up to 24.4%, among the highest in mass production today, and AIKO took first place in the 2025 SolarQuotes Installers' Choice Awards, reflecting strong real-world installer confidence. G-STAR offers a broader technology mix spanning PERC, TOPCon, HJT, monofacial, bifacial, and full-black formats across a wide wattage range, positioning it as a flexible supplier for residential rooftops through to utility-scale ground mounts. Both manufacturers back their panels with international certifications - G-STAR holds ETL and TUV approvals - and both offer long-form power warranties extending to 30 years.

For a typical buyer in 2025, AIKO is the stronger default when peak efficiency, bankability, and installer ecosystem matter most, particularly for premium residential and commercial rooftop applications. G-STAR warrants serious consideration where procurement favors a Southeast Asia-based supply chain - relevant given ongoing US tariff pressures on Chinese goods - or where diverse panel specifications are needed across a single project. The two brands address partly overlapping but distinct market positions rather than being straightforward substitutes.

\---LINKS---

\- https://www.pv-magazine.com/2025/05/14/gstar-launches-solar-cell-module-production-in-the-philippines/ \| Gstar launches solar cell and module production in the Philippines \| article

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

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

\- https://www.enfsolar.com/g-star \| G-STAR Pte. Ltd. company profile - ENF Solar Directory \| article

Sources:

\- \[Gstar launches solar cell, module production in the Philippines - pv magazine\](https://www.pv-magazine.com/2025/05/14/gstar-launches-solar-cell-module-production-in-the-philippines/)

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

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

\- \[G-STAR Pte. Ltd. profile - ENF Solar\](https://www.enfsolar.com/g-star)

Written by claude-sonnet from the figures above.


## Other comparisons

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


---

Source: https://comparepv.com/g-star-vs-aiko

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