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

# G-STAR vs AKCOME

G-STAR has the broader catalog (36 vs 3 models). G-STAR leads on peak efficiency at 23.51%. AKCOME leans bifacial (100% of lineup).


## The two companies


| Attribute | G-STAR | AKCOME |
| --- | --- | --- |
| Country |  | China |
| Headquarters |  | Suzhou |
| Founded |  | 2003 |
| Employees |  |  |
| Annual capacity |  |  |
| Tier 1 | no | no |
| Listed |  |  |
| Website |  | [https://www.akcome.com](https://www.akcome.com) |


## Catalog & Power


| Measure | G-STAR | AKCOME | Margin |
| --- | --- | --- | --- |
| Panel Models | 36 | 3 | +33 |
| Max Power | 725 W | 700 W | +25 W |
| Avg Power | 562 W | 672 W | +110 W |


## Efficiency


| Measure | G-STAR | AKCOME | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 23.51% | 22.54% | +0.97 pp |
| Avg Efficiency | 22.41% | 21.63% | +0.78 pp |


## Reliability & Warranty


| Measure | G-STAR | AKCOME | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.307%/°C | -0.240%/°C | +0.067 |
| Bifacial Share | 31 (86%) | 3 (100%) | +14 pp |
| Avg Warranty | 30.0 yrs | 30.0 yrs |  |


## Efficiency distribution

G-STAR skews to higher efficiency: 28% of lineup is 23%+


| Efficiency band | G-STAR | AKCOME |
| --- | --- | --- |
| 20-21% | 3 (8.3%) | 0 |
| 21-22% | 5 (13.9%) | 2 (66.7%) |
| 22-23% | 18 (50.0%) | 1 (33.3%) |
| 23%+ | 10 (27.8%) | 0 |


## Power distribution

AKCOME offers more 600W+ panels (100% of lineup)


| Power band | G-STAR | AKCOME |
| --- | --- | --- |
| 400-499W | 11 (30.6%) | 0 |
| 500-599W | 12 (33.3%) | 0 |
| 600-699W | 7 (19.4%) | 2 (66.7%) |
| 700W+ | 6 (16.7%) | 1 (33.3%) |


## Cell technology

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

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


| Technology | G-STAR | AKCOME |
| --- | --- | --- |
| TOPCon | 26 (72.2%) | 0 |
| N-type | 5 (13.9%) | 0 |
| PERC | 5 (13.9%) | 0 |
| HJT | 0 | 3 (100.0%) |


## 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, AKCOME


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [SKA611HDGDC-700W](https://comparepv.com/panel/akcome-ska611hdgdc-700w) | 700 | 22.5 | -0.240 | Monocrystalline |
| 2 | [SKA611HDGDC-660W](https://comparepv.com/panel/akcome-ska611hdgdc-660w) | 660 | 21.2 | -0.240 | Monocrystalline |
| 3 | [SKA611HDGDC-655W](https://comparepv.com/panel/akcome-ska611hdgdc-655w) | 655 | 21.1 | -0.240 | Monocrystalline |


## Summary

G-STAR is a Singapore-headquartered manufacturer founded in 2019, with a claimed total production capacity of 17.5 GW spread across Southeast Asian plants including a newly operational facility in the Philippines. AKCOME is a Chinese manufacturer founded in 2003 and publicly listed on the Shenzhen Stock Exchange (SZ 002610) since 2010, giving it a longer operating history and formal capital-market accountability; its HJT-focused factories in Zhejiang province represent multi-gigawatt nameplate capacity. Neither company currently holds Tier 1 bankable status, which limits their attractiveness for non-recourse project financing through major infrastructure lenders. On institutional footprint, AKCOME's stock listing and two-decade track record give it a nominal edge, but that advantage is clouded by a 2024 bankruptcy filing at its Zhejiang subsidiary, which raises legitimate supply-continuity concerns.

G-STAR's 12-panel portfolio centers on TOPCon technology - roughly 58% of the lineup is bifacial - with an average output of 517.5 Wp and a top panel reaching 595 Wp. Average cell efficiency of 22.27% and a peak of 23.03% are strong figures for the technology class, making this lineup well matched to premium residential rooftops and mid-scale commercial installations where physical panel size and per-unit efficiency matter most. The temperature coefficient is -0.30%/degree C at Pmax, which is standard for TOPCon but not class-leading. AKCOME's three-model lineup is built entirely on HJT and every panel in it is bifacial. Average output is substantially higher at 671.7 Wp with a ceiling of 700 Wp, pointing squarely at utility-scale ground mounts and large flat-roof commercial projects where higher per-panel wattage reduces racking and wiring costs. Average efficiency is 21.63% (top: 22.54%), modestly below G-STAR's, but AKCOME's temperature coefficient of -0.24%/degree C is materially better - panels lose less output on hot days, a real operational advantage in warm climates. Both brands back their modules with a 30-year linear power warranty.

For a typical buyer in 2025, the two products are not interchangeable - they serve different project types. G-STAR's mid-range TOPCon panels are the more practical fit for residential and small commercial buyers, and the Singapore manufacturing base also sidesteps US Section 201/301 tariff exposure that applies to Chinese-origin modules. AKCOME's high-wattage HJT lineup is technically compelling for utility developers who value bifacial gain and a superior temperature coefficient, but the 2024 financial difficulties at its main production subsidiary introduce counterparty risk that project lenders and EPC contractors will scrutinize carefully. Any serious procurement decision involving AKCOME should include current warranty-backstop assurances and supply-continuity verification before contract signing.

\---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-magazine.com/2024/10/15/gstar-introduces-440-w-topcon-solar-module-with-framless-design/ \| Gstar introduces 440 W TOPCon solar module with frameless design \| article

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

\- https://www.solarquotes.com.au/panels/akcome-review.html \| Akcome Solar Panels Review - SolarQuotes Australia \| review

\- https://taiyangnews.info/markets/china-pv-news-snippets-trina-solar-akcome/ \| China PV News Snippets: Trina Solar and Akcome - TaiyangNews \| article

Sources:

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

\- \[Gstar introduces 440 W TOPCon solar module with frameless design\](https://www.pv-magazine.com/2024/10/15/gstar-introduces-440-w-topcon-solar-module-with-framless-design/)

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

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

\- \[AKCOME Solar Panels Review 2026 - ComparePV\](https://comparepv.com/reviews/akcome)

\- \[China PV News Snippets: Trina Solar, Akcome - TaiyangNews\](https://taiyangnews.info/markets/china-pv-news-snippets-trina-solar-akcome/)

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 AKCOME](https://comparepv.com/ae-solar-vs-akcome)
- [G-STAR vs AEET](https://comparepv.com/g-star-vs-aeet)
- [AIKO vs AKCOME](https://comparepv.com/aiko-vs-akcome)
- [G-STAR vs ARTsolar](https://comparepv.com/g-star-vs-artsolar)
- [ASM vs AKCOME](https://comparepv.com/asm-vs-akcome)


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

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