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

# ASM vs ET Solar

ET Solar has the broader catalog (10 vs 1 models). ET Solar leads on peak efficiency at 21.40%. ET Solar leans bifacial (50% of lineup).


## The two companies


| Attribute | ASM | ET Solar |
| --- | --- | --- |
| Country | Australia | China |
| Headquarters | Hallam, Victoria | Nanjing |
| Founded | 2009 | 2005 |
| Employees | 1-10 |  |
| Annual capacity |  |  |
| Tier 1 | no | no |
| Listed |  |  |
| Website | [https://www.australiansolarmanufacturing.com.au](https://www.australiansolarmanufacturing.com.au) | [https://www.etsolar.com](https://www.etsolar.com) |

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 | ET Solar | Margin |
| --- | --- | --- | --- |
| Panel Models | 1 | 10 | +9 |
| Max Power | 170 W | 555 W | +385 W |
| Avg Power | 170 W | 542 W | +372 W |


## Efficiency


| Measure | ASM | ET Solar | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 16.00% | 21.40% | +5.40 pp |
| Avg Efficiency | 16.00% | 20.99% | +4.99 pp |


## Reliability & Warranty


| Measure | ASM | ET Solar | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.438%/°C | -0.340%/°C | +0.098 |
| Bifacial Share | 0 (0%) | 5 (50%) | +50 pp |
| Avg Warranty | - | 27.5 yrs |  |


## Efficiency distribution


| Efficiency band | ASM | ET Solar |
| --- | --- | --- |
| \<20% | 1 (100.0%) | 0 |
| 20-21% | 0 | 5 (50.0%) |
| 21-22% | 0 | 5 (50.0%) |


## Power distribution


| Power band | ASM | ET Solar |
| --- | --- | --- |
| \<400W | 1 (100.0%) | 0 |
| 500-599W | 0 | 10 (100.0%) |


## Cell technology

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


| Technology | ASM | ET Solar |
| --- | --- | --- |
| Unknown | 1 (100.0%) | 0 |
| PERC | 0 | 10 (100.0%) |


## 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, ET Solar


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [ET-M772BH555WW/WB](https://comparepv.com/panel/et-solar-et-m772bh555ww-wb) | 555 | 21.4 | -0.340 | Monocrystalline |
| 2 | [ET-M772BH550TW/TB](https://comparepv.com/panel/et-solar-et-m772bh550tw-tb) | 550 | 21.3 | -0.340 | Monocrystalline |
| 3 | [ET-M772BH550WW/WB](https://comparepv.com/panel/et-solar-et-m772bh550ww-wb) | 550 | 21.3 | -0.340 | Monocrystalline |
| 4 | [ET-M772BH545TW/TB](https://comparepv.com/panel/et-solar-et-m772bh545tw-tb) | 545 | 21.1 | -0.340 | Monocrystalline |
| 5 | [ET-M772BH545WW/WB](https://comparepv.com/panel/et-solar-et-m772bh545ww-wb) | 545 | 21.1 | -0.340 | Monocrystalline |
| 6 | [ET-M772BH540TW/TB](https://comparepv.com/panel/et-solar-et-m772bh540tw-tb) | 540 | 20.9 | -0.340 | Monocrystalline |
| 7 | [ET-M772BH540WW/WB](https://comparepv.com/panel/et-solar-et-m772bh540ww-wb) | 540 | 20.9 | -0.340 | Monocrystalline |
| 8 | [ET-M772BH535TW/TB](https://comparepv.com/panel/et-solar-et-m772bh535tw-tb) | 535 | 20.7 | -0.340 | Monocrystalline |
| 9 | [ET-M772BH535WW/WB](https://comparepv.com/panel/et-solar-et-m772bh535ww-wb) | 535 | 20.7 | -0.340 | Monocrystalline |
| 10 | [ET-M772BH530TW/TB](https://comparepv.com/panel/et-solar-et-m772bh530tw-tb) | 530 | 20.5 | -0.340 | Monocrystalline |


## Summary

ASM (Australian Solar Manufacturing Pty Ltd), headquartered in Victoria, Australia and founded in 2009, operates as a micro-scale panel assembler rather than a vertically integrated cell manufacturer, sourcing components from suppliers in Germany, Japan, and Asia for domestic assembly. With a reported headcount of 1-10 employees and no active panels in its current product registry, ASM carries no Tier 1 bankability rating and holds an essentially negligible institutional footprint in global procurement markets. ET Solar, founded in 2005 and based in China, occupies a substantially different position: third-party capacity analyses place its manufacturing output at approximately 5 GW, and some quarterly BloombergNEF tiering reports have listed affiliated entities in the ET Solar group as Tier 1 bankable, though the context data classifies the brand as not currently Tier 1 confirmed. Between the two, ET Solar commands a far stronger market presence and verifiable track record.

ET Solar's catalogued portfolio of 10 modules tells a concrete story. Every panel in the lineup uses PERC cell technology, averaging 542.5 Wp per module and topping out at 555 Wp - a power class suited to commercial rooftops and mid-scale ground-mount projects where space efficiency is a priority. Average panel efficiency sits at 20.99%, with the best unit reaching 21.4%, both competitive benchmarks for PERC. Half the lineup is bifacial, adding rear-side energy gain relevant to installations over reflective surfaces. An average warranty of 27.5 years exceeds the industry norm of 25 years, and a temperature coefficient averaging -0.34%/°C is a solid mid-range figure for warm climates. ASM, by contrast, offers no current panel data - its historical modules ran in the 170-195 Wp range, a specification class now effectively obsolete for commercial or utility applications.

For a buyer in 2025, the choice is straightforward. ET Solar's active PERC lineup, centered on 540-555 Wp modules at roughly 21% efficiency, is a credible option for commercial and light-utility projects where a strict Tier 1 lender requirement is not a binding constraint. ASM cannot be meaningfully evaluated against any contemporary benchmark given the absence of a live product portfolio and should be treated as effectively inactive for procurement purposes. Buyers requiring confirmed Tier 1 bankability for project-financed installations should look to larger manufacturers with current BNEF listings, but between these two specific brands, ET Solar is the only realistic candidate.

\---LINKS---

\- https://www.enfsolar.com/asm \| ASM Australian Solar Manufacturing - ENF Solar company profile \| review

\- https://assets.bnef.com/public/tiering/solarmodules.pdf \| BloombergNEF Solar Module Tier 1 Methodology March 2026 \| article

\- https://www.renvu.com/blogs/learn/tier-1-solar-panels-list-2025-updated-manufacturers-rankings \| Tier 1 Solar Panel Manufacturers List 2025 - RENVU \| article

\- https://www.cleanenergyreviews.info/blog/most-efficient-solar-panels \| Most Efficient Solar Panels 2025 - Clean Energy Reviews \| review

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


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

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