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ASM vs Sunplus - solar panel manufacturer comparison

ASM
Australia Founded 2009
Read the ASM review
VS
Sunplus
Headquarters not published
Read the Sunplus review
At a glance

Sunplus has the broader catalog (11 vs 1 models). Sunplus leads on peak efficiency at 24.10%. Sunplus leans bifacial (100% 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 11
Highest power
170 Wp 750 Wp
Best efficiency
16.0% 24.1%
Average efficiency
16.0% 22.4%
Bifacial share
0% 100%
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
02

Catalogue against catalogue

Averages over every model in the database
Metric ASM Sunplus
Catalog & Power
Panel Models 1 11+10
Max Power 170 W 750 W+580 W
Avg Power 170 W 670 W+500 W
Efficiency
Max Efficiency 16.00% 24.10%+8.10 pp
Avg Efficiency 16.00% 22.42%+6.42 pp
Reliability & Warranty
Avg Temp Coefficient -0.438%/°C -0.318%/°C+0.120
Bifacial Share 0 (0%) 11 (100%)+100 pp
Avg Warranty - 30.0 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

Sunplus skews to higher efficiency: 55% of lineup is 23%+

Power spread
Share of each catalogue in every power band

Sunplus offers more 600W+ panels (64% of lineup)

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

Dominant cell tech: <strong>HJT</strong> (55%)

04

The flagships

Highest-power models from each brand
05

Written summary

Checking cache...

ASM does not appear in major industry databases, PV-tech reporting, or BloombergNEF tier lists based on the searches conducted. It may be a very small regional brand or a trade name used in limited markets. Without verifiable sourcing, no specific figures or market-position claims can be made about it. Sunplus, by contrast, appears under the entity Sunplus Optimum Inc., a US-registered company with manufacturing bases in the Americas, Europe, and Asia. The company states a global production capacity of 6.5 GW across those sites, though this figure comes from its own marketing materials rather than an independently audited report. Sunplus markets itself as operating under Bloomberg Tier 1 guidelines, meaning it targets bankability standards required by project finance lenders, but independent confirmation of a current BloombergNEF listing was not found in open search results. On institutional footprint, Sunplus Optimum has a traceable public profile with distribution warehouses in California, New Jersey, and Texas, giving it a materially stronger documented presence than ASM.

Sunplus Optimum's publicly listed product range spans panels built on TOPCon, HJT, and shingled cell architectures, using both 182 mm and 210 mm large-format cells. The lineup includes bifacial dual-glass modules and all-black monofacial variants, positioning the brand across premium residential rooftops, mid-scale commercial installations, and light utility ground mounts. Panels carry UL listing and California Energy Commission approval, making them eligible for projects in the US regulatory environment. Because ASM's product catalog, cell technology, and certifications could not be confirmed through any credible third-party source, a direct technology comparison is not possible without risking fabricated detail.

For a typical buyer in 2025, Sunplus Optimum is the verifiable choice between the two - it has documented certifications, a distribution footprint, and confirmed use of current N-type cell technology. ASM, as researched, lacks the public record needed to assess warranty standing, bankability, or long-term service reliability. Unless a buyer has direct local experience with ASM through an established installer, Sunplus Optimum carries less procurement risk by default.

Generated by Claude Sonnet · 2026-06-15

06

Other brand comparisons

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ASM AKCOME
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ARTsolar Sunplus
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 7 Sunplus 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.