ASM vs Tongwei - solar panel manufacturer comparison
Tongwei has the broader catalog (122 vs 1 models). Tongwei leads on peak efficiency at 24.20%. Tongwei leans bifacial (69% of lineup).
Both catalogues are read from the manufacturers' own datasheets. A brand is not scored against the market here, only against the other brand on this page.
The two companies
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...
- Founded
- 2009
- Headquarters
- Hallam, Victoria, Australia
- Employees
- 1-10
- Founded
- 2013
- Headquarters
- Chengdu, China
- Listed
- SSE: 600438
- Tier 1 bankable
- Yes
Catalogue against catalogue
An average over a catalogue describes the range a manufacturer publishes, not the module you would buy. A brand with two flagship panels and eighty older ones averages worse than one that has retired its back catalogue.
What each of them builds
Tongwei skews to higher efficiency: 41% of lineup is 23%+
Tongwei offers more 600W+ panels (53% of lineup)
Dominant cell tech: <strong>TOPCon</strong> (47%)
The flagships
Written 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.
Generated by Claude Sonnet · 2026-06-03
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Comparisons are computed from manufacturer datasheets held in the ComparePV database and may not reflect a brand's complete current lineup. Nothing on this page is paid placement.