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

# ASM vs Tongwei

Tongwei has the broader catalog (122 vs 1 models). Tongwei leads on peak efficiency at 24.20%. Tongwei leans bifacial (69% of lineup).


## The two companies


| Attribute | ASM | Tongwei |
| --- | --- | --- |
| Country | Australia | China |
| Headquarters | Hallam, Victoria | Chengdu |
| Founded | 2009 | 2013 |
| Employees | 1-10 |  |
| Annual capacity |  |  |
| Tier 1 | no | yes |
| Listed |  | SSE: 600438 |
| Website | [https://www.australiansolarmanufacturing.com.au](https://www.australiansolarmanufacturing.com.au) | [https://en.tongwei.com.cn](https://en.tongwei.com.cn) |

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 | Tongwei | Margin |
| --- | --- | --- | --- |
| Panel Models | 1 | 122 | +121 |
| Max Power | 170 W | 750 W | +580 W |
| Avg Power | 170 W | 584 W | +414 W |


## Efficiency


| Measure | ASM | Tongwei | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 16.00% | 24.20% | +8.20 pp |
| Avg Efficiency | 16.00% | 22.59% | +6.59 pp |


## Reliability & Warranty


| Measure | ASM | Tongwei | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.438%/°C | -0.284%/°C | +0.154 |
| Bifacial Share | 0 (0%) | 84 (69%) | +69 pp |
| Avg Warranty | - | 29.5 yrs |  |


## Efficiency distribution

Tongwei skews to higher efficiency: 41% of lineup is 23%+


| Efficiency band | ASM | Tongwei |
| --- | --- | --- |
| \<20% | 1 (100.0%) | 2 (1.6%) |
| 20-21% | 0 | 6 (4.9%) |
| 21-22% | 0 | 14 (11.5%) |
| 22-23% | 0 | 50 (41.0%) |
| 23%+ | 0 | 50 (41.0%) |


## Power distribution

Tongwei offers more 600W+ panels (53% of lineup)


| Power band | ASM | Tongwei |
| --- | --- | --- |
| \<400W | 1 (100.0%) | 0 |
| 400-499W | 0 | 41 (33.6%) |
| 500-599W | 0 | 16 (13.1%) |
| 600-699W | 0 | 33 (27.0%) |
| 700W+ | 0 | 32 (26.2%) |


## Cell technology

Dominant cell tech: **TOPCon** (47%)


| Technology | ASM | Tongwei |
| --- | --- | --- |
| Unknown | 1 (100.0%) | 6 (4.9%) |
| TOPCon | 0 | 57 (46.7%) |
| N-type | 0 | 44 (36.1%) |
| PERC | 0 | 10 (8.2%) |
| HJT | 0 | 5 (4.1%) |


## 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, Tongwei


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [TWMNF-66HD750](https://comparepv.com/panel/tongwei-solar-twmnf-66hd750) | 750 | 24.1 | -0.280 | Monocrystalline |
| 2 | [TWMNF-66HD745](https://comparepv.com/panel/tongwei-solar-twmnf-66hd745) | 745 | 24.0 | -0.280 | Monocrystalline |
| 3 | [TWMNF-66HD740](https://comparepv.com/panel/tongwei-solar-twmnf-66hd740) | 740 | 23.8 | -0.280 | Monocrystalline |
| 4 | [TWMHF-66HD740X](https://comparepv.com/panel/tw-solar-twmhf-66hd740x) | 740 | 23.8 | -0.240 | Monocrystalline |
| 5 | [THC G12-66 Bifacial](https://comparepv.com/panel/tongwei-thc-g12-66-bifacial) | 740 | 23.8 | -0.280 | Monocrystalline |
| 6 | [TWMNF-66HD735](https://comparepv.com/panel/tongwei-solar-twmnf-66hd735) | 735 | 23.7 | -0.280 | Monocrystalline |
| 7 | [TWMHF-66HD735X](https://comparepv.com/panel/tw-solar-twmhf-66hd735x) | 735 | 23.7 | -0.240 | Monocrystalline |
| 8 | [TWMHF-66HD730X](https://comparepv.com/panel/tw-solar-twmhf-66hd730x) | 730 | 23.5 | -0.240 | Monocrystalline |
| 9 | [TWMNF-66HD730](https://comparepv.com/panel/tongwei-solar-twmnf-66hd730) | 730 | 23.5 | -0.280 | Monocrystalline |
| 10 | [TWMNF-66HD725](https://comparepv.com/panel/tongwei-solar-twmnf-66hd725) | 725 | 23.3 | -0.280 | Monocrystalline |


## Summary

ASM (Australian Solar Manufacturing Pty Ltd) is a small Australian manufacturer with a regional focus on the domestic market. Public records and industry databases contain limited detail on its founding date or consolidated annual output, and the brand does not appear on published BloombergNEF or PV ModuleTech Tier 1 bankability lists. Tongwei Solar (marketed as TW Solar), by contrast, is headquartered in Chengdu, China, and is one of the most vertically integrated solar companies in the world, active across high-purity polysilicon, solar cells, and finished modules. Tongwei holds confirmed BloombergNEF Tier 1 status and an "A" PV ModuleTech bankability rating; its cell production capacity exceeds 150 GW per year and module capacity stands at roughly 90 GW, placing it among the top five module suppliers globally. On institutional footprint alone, Tongwei has a commanding lead.

ASM's catalog is oriented toward the Australian residential rooftop segment, with older monocrystalline designs in relatively modest wattage ranges. Independent reviews on Australian consumer platforms are mixed, with some customers citing difficulties reaching after-sales support. Tongwei's portfolio is considerably broader: the TW Solar range spans residential rooftop panels to utility-scale ground mounts, covering outputs from roughly 400 W to over 700 W, and the product mix includes both PERC and increasingly N-type TOPCon cell technology, the latter offering improved low-light performance and lower degradation rates. Selected TW Solar models earned Top Performer recognition in the 2025 Kiwa PVEL PV Module Reliability Scorecard, and the company offers a 30-year linear power warranty on newer lines.

For most buyers in 2025 - whether residential, commercial, or utility - Tongwei is the more defensible default choice, given its documented Tier 1 bankability, proven large-scale manufacturing, independent reliability testing results, and established global distribution. ASM may suit a narrow segment of Australian buyers seeking a locally branded product, but the absence of Tier 1 credentials and the limited public data on its manufacturing scale make it difficult to recommend for project-financed or large commercial installations.

\---LINKS---

\- https://www.pv-tech.org/tongwei-solar-the-first-vertically-integrated-leading-global-module-supplier-in-2025/ \| Tongwei Solar - first vertically integrated leading global module supplier 2025 \| article

\- https://comparepv.com/reviews/tongwei \| Tongwei Solar Panels Review 2026 - ComparePV \| review

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

\- https://scorecard.pvel.com/manufacturer\_name/tongwei-solar/ \| Tongwei Solar - Kiwa PVEL 2025 PV Module Reliability Scorecard \| review

\- https://www.productreview.com.au/listings/asm-solar \| ASM Solar customer reviews - ProductReview.com.au \| review

Sources:

\- \[Tongwei Solar - first vertically integrated leading global module supplier 2025\](https://www.pv-tech.org/tongwei-solar-the-first-vertically-integrated-leading-global-module-supplier-in-2025/)

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

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

\- \[Tongwei Solar - Kiwa PVEL 2025 PV Module Reliability Scorecard\](https://scorecard.pvel.com/manufacturer\_name/tongwei-solar/)

\- \[ASM Solar customer reviews - ProductReview.com.au\](https://www.productreview.com.au/listings/asm-solar)

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


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Source: https://comparepv.com/asm-vs-tongwei

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