Skip to main content

ASM vs VSUN - solar panel manufacturer comparison

ASM
Australia Founded 2009
Read the ASM review
VS
VSUN
Germany Founded 2012
Read the VSUN review
At a glance

VSUN has the broader catalog (111 vs 1 models). VSUN leads on peak efficiency at 23.14%. VSUN leans bifacial (75% 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.

Panel models
1 111
Highest power
170 Wp 715 Wp
Best efficiency
16.0% 23.1%
Average efficiency
16.0% 21.7%
Bifacial share
0% 75%
Average warranty
- 30 yrs
01

The two companies

Company facts, not datasheet figures
ASM

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
VSUN
Founded
2012
Headquarters
Frankfurt am Main, Germany
02

Catalogue against catalogue

Averages over every model in the database
Metric ASM VSUN
Catalog & Power
Panel Models 1 111+110
Max Power 170 W 715 W+545 W
Avg Power 170 W 524 W+354 W
Efficiency
Max Efficiency 16.00% 23.14%+7.14 pp
Avg Efficiency 16.00% 21.71%+5.71 pp
Reliability & Warranty
Avg Temp Coefficient -0.438%/°C -0.308%/°C+0.130
Bifacial Share 0 (0%) 83 (75%)+75 pp
Avg Warranty - 29.7 yrs

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.

03

What each of them builds

Cell technology across the market
Efficiency spread
Share of each catalogue in every efficiency band

VSUN skews to higher efficiency: 3% of lineup is 23%+

Power spread
Share of each catalogue in every power band

VSUN offers more 600W+ panels (29% of lineup)

ASM cell technology
Share of their models by cell architecture
VSUN cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>TOPCon</strong> (72%)

04

The flagships

Highest-power models from each brand
05

Written summary

Checking cache...

ASM is a brand for which no verifiable company profile, production capacity figure, or bankability assessment could be located in credible industry sources at the time of writing. Without confirmed data on its founding history, headquarters, or Tier 1 standing, it is not possible to make concrete claims about its institutional footprint. VSUN Solar, by contrast, is a well-documented manufacturer with Vietnamese production roots and a Tokyo-based commercial presence; it was founded in June 2015 and has since achieved BloombergNEF Tier 1 status. VSUN operates a 4 GW wafer plant in northern Vietnam - completed in 2024 - and holds a polysilicon supply agreement with South Korean producer OCI, signaling a meaningfully integrated supply chain. In terms of institutional recognition, VSUN has the stronger verifiable footprint by a considerable margin.

VSUN's module range spans from roughly 390 W to 715 W, covering residential rooftop, commercial, and utility-scale ground-mount applications. The portfolio is built predominantly on n-type TOPCon cell technology, with bifacial formats making up a large share of the catalog. VSUN was named 2024 Overall Highest Achiever by the independent Renewable Energy Test Center (RETC), and the company backs its modules with a 30-year linear power output warranty. Because no comparable product data was found for ASM through multiple targeted searches, a meaningful technology or use-case comparison between the two brands cannot be made responsibly.

For a typical buyer in 2025, VSUN is the more defensible choice: it carries confirmed BloombergNEF bankability, has a documented manufacturing base with traceable supply agreements, and has been independently validated by RETC. ASM, lacking any traceable industry profile in major sector publications, carries higher sourcing risk - buyers should demand third-party test certificates and written warranty-backing confirmation before committing to any purchase.

Generated by Claude Sonnet · 2026-06-15

06

Other brand comparisons

Build your own
Manufacturers
ASM A.B. Energy
Manufacturers
AE Solar VSUN
Manufacturers
ASM AEET
Manufacturers
AIKO VSUN
Manufacturers
ASM AKCOME
Manufacturers
ARTsolar VSUN
Something missing from a catalogue? Both lists are built from the datasheets in the database. If a model is absent, it has not been ingested yet.

Shop prices: See 4 VSUN offers

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.