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

# ASM vs Just Solar

Just Solar has the broader catalog (42 vs 1 models). Just Solar leads on peak efficiency at 23.82%. Just Solar leans bifacial (17% of lineup).


## The two companies


| Attribute | ASM | Just Solar |
| --- | --- | --- |
| Country | Australia |  |
| Headquarters | Hallam, Victoria |  |
| Founded | 2009 |  |
| Employees | 1-10 |  |
| Annual capacity |  |  |
| Tier 1 | no | no |
| Listed |  |  |
| Website | [https://www.australiansolarmanufacturing.com.au](https://www.australiansolarmanufacturing.com.au) |  |

Australian Solar Manufacturing (ASM) is a small Australian solar panel assembler that produces crystalline monocrystalline modules domestically using components sourced from Germany, Japan, the USA, and China. The company focuses on providing locally assembled PV modules tailored to Australian conditions, supporting...


## Catalog & Power


| Measure | ASM | Just Solar | Margin |
| --- | --- | --- | --- |
| Panel Models | 1 | 42 | +41 |
| Max Power | 170 W | 740 W | +570 W |
| Avg Power | 170 W | 491 W | +321 W |


## Efficiency


| Measure | ASM | Just Solar | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 16.00% | 23.82% | +7.82 pp |
| Avg Efficiency | 16.00% | 22.08% | +6.08 pp |


## Reliability & Warranty


| Measure | ASM | Just Solar | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.438%/°C | -0.306%/°C | +0.132 |
| Bifacial Share | 0 (0%) | 7 (17%) | +17 pp |
| Avg Warranty | - | 28.5 yrs |  |


## Efficiency distribution

Just Solar skews to higher efficiency: 33% of lineup is 23%+


| Efficiency band | ASM | Just Solar |
| --- | --- | --- |
| \<20% | 1 (100.0%) | 0 |
| 20-21% | 0 | 8 (19.0%) |
| 21-22% | 0 | 14 (33.3%) |
| 22-23% | 0 | 6 (14.3%) |
| 23%+ | 0 | 14 (33.3%) |


## Power distribution

Just Solar offers more 600W+ panels (17% of lineup)


| Power band | ASM | Just Solar |
| --- | --- | --- |
| \<400W | 1 (100.0%) | 7 (16.7%) |
| 400-499W | 0 | 21 (50.0%) |
| 500-599W | 0 | 7 (16.7%) |
| 700W+ | 0 | 7 (16.7%) |


## Cell technology

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


| Technology | ASM | Just Solar |
| --- | --- | --- |
| Unknown | 1 (100.0%) | 0 |
| TOPCon | 0 | 22 (52.4%) |
| Back Contact | 0 | 13 (31.0%) |
| HJT | 0 | 7 (16.7%) |


## Top panels, ASM


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [ASM170M](https://comparepv.com/panel/australian-solar-manufacturing-asm170m) | 170 | 16.0 | -0.438 | 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

ASM, formally Australian Solar Manufacturing Pty Ltd, is a small, fully Australian-owned business founded in January 2009 and headquartered in Hallam, Victoria. It operates as a domestic-scale producer with an annual revenue reported around AU$5.7 million and a very small headcount, placing it firmly outside any Tier 1 or BloombergNEF bankability classification. Its publicly documented product line consists of monocrystalline modules in the 170-200 W range, a specification that reflects technology typical of the early 2010s rather than current high-wattage formats. ASM markets primarily to the Australian residential segment and has no documented large-scale utility supply record. By contrast, Just Solar Group Limited - founded in 2010, headquartered in Shanghai and with factories in China, Macedonia, and Vietnam - claims a combined production capacity exceeding 2 GW per year and holds standard quality certifications (ISO 9001, ISO 14001, ISO 45001). No BloombergNEF Tier 1 designation for Just Solar was found in search results, but its multinational manufacturing footprint and scale place it on an entirely different institutional level than ASM.

On the product side, Just Solar's current catalog centers on N-type TOPCon bifacial modules in the 580-730 W range, with HJT options also available - technologies that are now mainstream for both commercial rooftop and utility-scale ground-mount projects globally. ASM's documented range stops at 200 W monocrystalline modules, which are not competitive with modern high-density formats and are not suited to large commercial or utility applications. Just Solar explicitly targets export markets and distributors, offering flexible custom production and a roughly three-week lead time, positioning it as a volume supplier for international project developers.

For a typical buyer in 2025 - whether a residential installer sourcing modern high-wattage panels, a commercial integrator, or a utility-scale developer - Just Solar is the more practical default, given its current cell technology, production scale, and international supply capability. ASM may appeal to buyers with a specific preference for Australian-made goods, but its product specifications and company scale limit its relevance to a niche domestic context. The two brands are not interchangeable: they occupy fundamentally different market tiers.

\---LINKS---

\- https://www.enfsolar.com/asm \| Australian Solar Manufacturing Pty Ltd - ENF Solar profile \| article

\- https://www.australiansolarmanufacturing.com.au/ \| ASM official site - Australian Made Solar Panels \| article

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

\- https://www.jusolar.com/index.php/product/justsolar-topcon-bifacial-mono-module-solar-panel-jst-eamh-580-600w-td/ \| JUSTSOLAR TOPCon bifacial mono module 580-600W product page \| article

\- https://www.jusolar.com/index.php/2026/03/06/topcon-vs-hjt-solar-panels-2026-comparison/ \| Just Solar - TOPCon vs HJT comparison guide 2026 \| article

Sources:

\- \[Australian Solar Manufacturing Pty Ltd - ENF Solar\](https://www.enfsolar.com/asm)

\- \[ASM Official Site\](https://www.australiansolarmanufacturing.com.au/)

\- \[Just Solar Group Limited - ENF Solar\](https://www.enfsolar.com/just-solar)

\- \[JUSTSOLAR TOPCon Bifacial Module Product Page\](https://www.jusolar.com/index.php/product/justsolar-topcon-bifacial-mono-module-solar-panel-jst-eamh-580-600w-td/)

\- \[Just Solar - TOPCon vs HJT Guide 2026\](https://www.jusolar.com/index.php/2026/03/06/topcon-vs-hjt-solar-panels-2026-comparison/)

Written by claude-sonnet from the figures above.


## Other comparisons

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


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

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